Create standalone physics plugin

.gitignore

@@ -2,4 +2,5 @@
 .project
 target
 .settings
-data
+data
+bin

application/visualizer/Test1/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/test/MeshTest.java

@@ -65,7 +65,6 @@ public class MeshTest {
         // Now that we have a bunch of bounding boxes, do whatever
         
         MeshBuilder builder = new MeshBuilder();
-        int i = 0;
         for ( AABB box : boxes ) {
             for ( Facet facet : generateFacetsFor( box ) ) {
                 builder.addFacet( facet );

plugin/environment/pom.xml

@@ -66,19 +66,6 @@
 					<release>21</release>
 				</configuration>
 			</plugin>
-			<plugin>
-				<groupId>org.apache.maven.plugins</groupId>
-				<artifactId>maven-jar-plugin</artifactId>
-				<version>3.5.0</version>
-				<configuration>
-					<archive>
-						<manifest>
-							<addClasspath>true</addClasspath>
-							<mainClass>com.aaaaahhhhhhh.bananapuncher714.minietest.MeshingTest6</mainClass>
-						</manifest>
-					</archive>
-				</configuration>
-			</plugin>
 		</plugins>
 	</build>
 </project>

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/CommandBase.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -8,7 +8,7 @@ import java.util.Set;
 import org.bukkit.command.PluginCommand;
 import org.bukkit.permissions.Permission;
 
-import com.aaaaahhhhhhh.bananapuncher714.minietest.util.BukkitUtil;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.util.BukkitUtil;
 
 public class CommandBase {
 	protected PluginCommand command;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/CommandOption.java

@@ -1,8 +1,8 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command;
 
 import org.bukkit.command.CommandSender;
 
-import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.executor.CommandExecutable;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.executor.CommandExecutable;
 
 public class CommandOption {
 	protected CommandExecutable exe;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/CommandParameters.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command;
 
 import java.util.ArrayList;
 import java.util.List;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/CommandResult.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command;
 
 import java.util.ArrayList;
 import java.util.Collection;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/SplitCommand.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command;
 
 public class SplitCommand {
 	protected String[] input;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/SubCommand.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -13,10 +13,10 @@ import org.bukkit.command.CommandSender;
 import org.bukkit.command.PluginCommand;
 import org.bukkit.util.StringUtil;
 
-import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.executor.CommandExecutable;
-import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator.InputValidator;
-import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator.InputValidatorString;
-import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator.sender.SenderValidator;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.executor.CommandExecutable;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator.InputValidator;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator.InputValidatorString;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator.sender.SenderValidator;
 
 /**
  * A build and run command framework for automatic tab completions and easy branching.

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/executor/CommandExecutable.java

@@ -1,8 +1,8 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.executor;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.executor;
 
 import org.bukkit.command.CommandSender;
 
-import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.CommandParameters;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.CommandParameters;
 
 public interface CommandExecutable {
 	void execute( CommandSender sender, String[] args, CommandParameters params );

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/executor/CommandExecutableMessage.java

@@ -1,8 +1,8 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.executor;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.executor;
 
 import org.bukkit.command.CommandSender;
 
-import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.CommandParameters;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.CommandParameters;
 
 public class CommandExecutableMessage implements CommandExecutable {
 	protected String message;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/executor/package-info.java

@@ -5,4 +5,4 @@
  * @author BananaPuncher714
  *
  */
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.executor;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.executor;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/package-info.java

@@ -3,4 +3,4 @@
  * 
  * @author BananaPuncher714
  */
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/InputValidator.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator;
 
 import java.util.Collection;
 

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/InputValidatorArguments.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator;
 
 import java.util.Collection;
 

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/InputValidatorBoolean.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator;
 
 import java.util.Collection;
 import java.util.HashSet;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/InputValidatorChain.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator;
 
 import java.util.ArrayList;
 import java.util.Collection;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/InputValidatorDouble.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator;
 
 import java.util.Collection;
 

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/InputValidatorInt.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator;
 
 import java.util.Collection;
 

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/InputValidatorPattern.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator;
 
 import java.util.Collection;
 

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/InputValidatorPlayer.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator;
 
 import java.util.Collection;
 import java.util.HashSet;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/InputValidatorString.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator;
 
 import java.util.Collection;
 import java.util.HashSet;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/package-info.java

@@ -5,4 +5,4 @@
  * @author BananaPuncher714
  *
  */
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/sender/SenderValidator.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator.sender;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator.sender;
 
 import org.bukkit.command.CommandSender;
 

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/sender/SenderValidatorNotPlayer.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator.sender;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator.sender;
 
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/sender/SenderValidatorPermission.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator.sender;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator.sender;
 
 import java.util.HashSet;
 import java.util.Set;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/sender/SenderValidatorPlayer.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator.sender;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator.sender;
 
 import org.bukkit.command.CommandSender;
 import org.bukkit.entity.Player;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/command/validator/sender/package-info.java

@@ -5,4 +5,4 @@
  * @author BananaPuncher714
  *
  */
-package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.command.validator.sender;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator.sender;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/ChunkMeshCache.java

@@ -0,0 +1,46 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment;
+
+import java.io.File;
+import java.io.IOException;
+import java.nio.file.Files;
+import java.nio.file.StandardOpenOption;
+
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects.ChunkLocation;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects.ChunkMesh;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.util.ChunkMeshUtil;
+
+public class ChunkMeshCache {
+	File directory;
+	
+	public ChunkMeshCache( File directory ) {
+	    this.directory = directory;
+	}
+	
+	public ChunkMesh load( ChunkLocation location ) {
+	    final File file = new File( directory, location.getWorldName() + "/" + location.getX() + "/" + location.getZ() + ".cmesh" );
+        if ( file.exists() ) {
+            try {
+                final byte[] data = Files.readAllBytes( file.toPath() );
+                final ChunkMesh mesh = ChunkMeshUtil.deserialize( data );
+                
+                return mesh;
+            } catch ( IOException e ) {
+                e.printStackTrace();
+            }
+        }
+        return null;
+	}
+	
+	public void save( ChunkLocation location, ChunkMesh mesh ) {
+	    final File file = new File( directory, location.getWorldName() + "/" + location.getX() + "/" + location.getZ() + ".cmesh" );
+        file.getParentFile().mkdirs();
+        
+        final byte[] data = ChunkMeshUtil.serialize( mesh );
+        
+        try {
+            Files.write( file.toPath(), data, StandardOpenOption.TRUNCATE_EXISTING, StandardOpenOption.CREATE, StandardOpenOption.WRITE );
+        } catch ( IOException e ) {
+            e.printStackTrace();
+        }
+	}
+}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/EnvironmentHandler.java

@@ -0,0 +1,10 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment;
+
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects.ChunkLocation;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects.ChunkMesh;
+
+public interface EnvironmentHandler {
+    public void onMeshLoad( ChunkLocation location, ChunkMesh mesh );
+    public void onMeshUnload( ChunkLocation location, ChunkMesh mesh );
+    public void onMeshUpdate( ChunkLocation location, ChunkMesh mesh );
+}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/McMeshEnvironmentPlugin.java

@@ -1,12 +1,17 @@
 package com.aaaaahhhhhhh.bananapuncher714.mesh.environment;
 
 import java.io.File;
+import java.util.logging.Level;
 
+import org.apache.commons.lang.SystemUtils;
+import org.bukkit.Bukkit;
 import org.bukkit.plugin.java.JavaPlugin;
 
 import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.util.FileUtil;
+import com.jme3.bullet.PhysicsSpace;
+import com.jme3.bullet.objects.PhysicsRigidBody;
 
-public class McMeshEnvironment extends JavaPlugin {
+public class McMeshEnvironmentPlugin extends JavaPlugin {
     @Override
     public void onEnable() {
         FileUtil.saveToFile( getResource( "native/windows/x86_64/bulletjme.dll" ), new File( getDataFolder() + "/lib", "bulletjme.dll" ), false );
@@ -17,6 +22,11 @@ public class McMeshEnvironment extends JavaPlugin {
             Bukkit.getPluginManager().disablePlugin( this );
             return;
         }
+        
+        // Don't log anything
+        PhysicsSpace.logger.setLevel( Level.WARNING );
+        PhysicsSpace.loggerC.setLevel( Level.WARNING );
+        PhysicsRigidBody.logger2.setLevel( Level.WARNING );
     }
 
     private final boolean loadNativeLibraries() {

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/Aabb.java

@@ -1,8 +1,9 @@
-package com.aaaaahhhhhhh.bananapuncher714.minietest.objects;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
 
 import java.io.Serializable;
 
 import org.bukkit.util.BoundingBox;
+import org.bukkit.util.Vector;
 
 public class Aabb implements Serializable {
     private static final long serialVersionUID = 6518512405568765913L;
@@ -18,6 +19,10 @@ public class Aabb implements Serializable {
     public final int depth;
     public final int height;
     
+    public Aabb( Vector min, Vector max ) {
+    	this( min.getBlockX(), min.getBlockY(), min.getBlockZ(), max.getBlockX(), max.getBlockY(), max.getBlockZ() );
+    }
+    
     public Aabb( final int minX, final int minY, final int minZ, final int maxX, final int maxY, final int maxZ ) {
         this.minX = minX;
         this.minY = minY;
@@ -47,4 +52,12 @@ public class Aabb implements Serializable {
     public int getVolume() {
         return width * depth * height;
     }
+    
+    public Vector getMinimumCorner() {
+    	return new Vector( minX, minY, minZ );
+    }
+    
+    public Vector getMaximumCorner() {
+    	return new Vector( maxX, maxY, maxZ );
+    }
 }

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/AbstractMesh.java

@@ -0,0 +1,62 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
+
+import java.util.Collection;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.TreeSet;
+
+import org.bukkit.util.Vector;
+
+import com.jme3.bullet.collision.shapes.infos.IndexedMesh;
+import com.jme3.math.Vector3f;
+
+public abstract class AbstractMesh {
+    // References to every point used by at least one planemesh
+    public TreeSet< VectorReference > pointReferences = new TreeSet< VectorReference >();
+    // Map of meshes to each plane
+    // TODO Allow for non axis-aligned planes
+    public Map< MinecraftPlane, PlaneMesh > planes = new TreeMap< MinecraftPlane, PlaneMesh >();
+
+    public abstract Vector getMinimumCorner();
+    public abstract Vector getMaximumCorner();
+
+    public abstract BlockDataInformation getBlockDataInformationFor( Vector position );
+    public abstract void setBlockDataInformationFor( BlockDataInformation information, Vector position );
+    
+    public IndexedMesh toIndexedMesh() {
+        final Vector3f[] positionArray = new Vector3f[ pointReferences.size() ];
+        int vertexIndex = 0;
+        for ( final VectorReference ref : pointReferences ) {
+            final Vector vector = ref.vector;
+            
+            positionArray[ vertexIndex ] = new Vector3f( ( float ) vector.getX(), ( float ) vector.getY(), ( float ) vector.getZ() );
+            ref.index = vertexIndex;
+            
+            ++vertexIndex;
+        }
+
+        final int totalTriangleCount = planes.values().stream().mapToInt( m -> m.completedPolygons.size() ).sum();
+        
+        int triangleIndex = 0;
+        final int[] indexArray = new int[ totalTriangleCount * 3 ];
+        for ( final PlaneMesh mesh : planes.values() ) {
+            for ( final IndexedPolygon triangle : mesh.completedPolygons ) {
+            	Collection< VectorReference > refs = triangle.getPoints();
+                if ( refs.size() != 3 ) {
+                    throw new IllegalStateException( "Triangle does not have exactly 3 vertices!" );
+                }
+                
+                final int indexArrayStart = triangleIndex * 3;
+                Iterator< VectorReference > it = refs.iterator();
+                indexArray[ indexArrayStart ] = it.next().index;
+                indexArray[ indexArrayStart + 1 ] = it.next().index;
+                indexArray[ indexArrayStart + 2 ] = it.next().index;
+                
+                ++triangleIndex;
+            }
+        }
+        
+        return new IndexedMesh( positionArray, indexArray );
+    }
+}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/BlockDataInformation.java

@@ -0,0 +1,25 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
+
+import org.bukkit.block.data.BlockData;
+import org.bukkit.util.BoundingBox;
+
+public class BlockDataInformation {
+	// If the block is complex/simple/empty
+	public BlockDataType type;
+	// Hashcode of the current block's blockdata so we can check if it changed
+	public final int blockDataHash;
+	// The bounding boxes for each complex block, null if air or a cube
+	public BoundingBox[] boundingBoxes;
+	
+	public BlockDataInformation( int hash ) {
+		blockDataHash = hash;
+	}
+	
+	public BlockDataInformation( BlockData data ) {
+		blockDataHash = data.hashCode();
+	}
+	
+	public boolean isBlockData( BlockData data ) {
+		return blockDataHash == data.hashCode();
+	}
+}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/BlockDataType.java

@@ -0,0 +1,5 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
+
+public enum BlockDataType {
+    NONE, COMPLEX, SOLID
+}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/BlockDataTypeSet.java

@@ -1,9 +1,7 @@
-package com.aaaaahhhhhhh.bananapuncher714.minietest.objects;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
 
 import java.util.BitSet;
 
-import com.aaaaahhhhhhh.bananapuncher714.minietest.util.BinaryWriter;
-
 public class BlockDataTypeSet {
     private static final int BLOCK_SIZE;
     private static final BitSet[] SETS;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/ChunkLocation.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.minietest.objects;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
 
 import org.apache.commons.lang.Validate;
 import org.bukkit.Bukkit;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/ChunkMesh.java

@@ -1,28 +1,25 @@
-package com.aaaaahhhhhhh.bananapuncher714.minietest.objects;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
 
 import java.nio.ByteBuffer;
-import java.nio.IntBuffer;
 import java.util.ArrayDeque;
 import java.util.ArrayList;
-import java.util.HashSet;
+import java.util.Collection;
+import java.util.Iterator;
 import java.util.List;
-import java.util.Map;
 import java.util.Map.Entry;
-import java.util.TreeMap;
-import java.util.TreeSet;
 
 import org.bukkit.block.data.BlockData;
 import org.bukkit.util.BoundingBox;
 import org.bukkit.util.Vector;
 
-import com.aaaaahhhhhhh.bananapuncher714.mesh.Point;
-import com.aaaaahhhhhhh.bananapuncher714.mesh.Polygon;
-import com.aaaaahhhhhhh.bananapuncher714.minietest.objects.MinecraftPlane.PlaneAxis;
-import com.aaaaahhhhhhh.bananapuncher714.minietest.util.BinaryWriter;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.algorithm.Point;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.algorithm.Polygon;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects.MinecraftPlane.PlaneAxis;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.util.BinaryWriter;
 import com.jme3.bullet.collision.shapes.infos.IndexedMesh;
 import com.jme3.math.Vector3f;
 
-public class ChunkMesh {
+public class ChunkMesh extends AbstractMesh {
     // TODO Public for now while I figure out how to organize the stuff properly
 
     // Hashcode of the current block's blockdata so we can check if it changed
@@ -31,11 +28,6 @@ public class ChunkMesh {
     private BoundingBox[][] boxes;
     // Stores which blocks are complex/simple/empty
     private BlockDataTypeSet blockTypes;
-    // References to every point used by at least one planemesh
-    public TreeSet< VectorReference > pointReferences = new TreeSet< VectorReference >();
-    // Map of meshes to each plane
-    // TODO Allow for non axis-aligned planes
-    public Map< MinecraftPlane, PlaneMesh > planes = new TreeMap< MinecraftPlane, PlaneMesh >();
     // Bounding box of this mesh
     private Aabb box;
     
@@ -89,7 +81,38 @@ public class ChunkMesh {
         }
         return results;
     }
+	
+	@Override
+	public Vector getMinimumCorner() {
+		return box.getMinimumCorner();
+	}
     
+	@Override
+	public Vector getMaximumCorner() {
+		return box.getMaximumCorner();
+	}
+	
+	@Override
+	public BlockDataInformation getBlockDataInformationFor( Vector position ) {
+		final int index = position.getBlockX() + ( position.getBlockZ() << 4 ) + ( position.getBlockY() << 8 );
+		
+		BlockDataInformation information = new BlockDataInformation( data[ index ] );
+		information.type = getType( index );
+		information.boundingBoxes = getBoxesAt( index );
+		
+		return information;
+	}
+	
+	@Override
+	public void setBlockDataInformationFor( BlockDataInformation information, Vector position ) {
+		final int index = position.getBlockX() + ( position.getBlockZ() << 4 ) + ( position.getBlockY() << 8 );
+		
+		data[ index ] = information.blockDataHash;
+		setType( index, information.type );
+		setBoxes( index, information.boundingBoxes );
+	}
+	
+	@Override
     public IndexedMesh toIndexedMesh() {
         final Vector3f[] positionArray = new Vector3f[ pointReferences.size() ];
         int vertexIndex = 0;
@@ -108,14 +131,16 @@ public class ChunkMesh {
         final int[] indexArray = new int[ totalTriangleCount * 3 ];
         for ( final PlaneMesh mesh : planes.values() ) {
             for ( final IndexedPolygon triangle : mesh.completedPolygons ) {
-                if ( triangle.points.size() != 3 ) {
+            	Collection< VectorReference > refs = triangle.getPoints();
+                if ( refs.size() != 3 ) {
                     throw new IllegalStateException( "Triangle does not have exactly 3 vertices!" );
                 }
                 
                 final int indexArrayStart = triangleIndex * 3;
-                indexArray[ indexArrayStart ] = triangle.points.get( 0 ).index;
-                indexArray[ indexArrayStart + 1 ] = triangle.points.get( 1 ).index;
-                indexArray[ indexArrayStart + 2 ] = triangle.points.get( 2 ).index;
+                Iterator< VectorReference > it = refs.iterator();
+                indexArray[ indexArrayStart ] = it.next().index;
+                indexArray[ indexArrayStart + 1 ] = it.next().index;
+                indexArray[ indexArrayStart + 2 ] = it.next().index;
                 
                 ++triangleIndex;
             }
@@ -198,8 +223,8 @@ public class ChunkMesh {
             // Write each triangle
             writer.write( mesh.completedPolygons.size() );
             for ( final IndexedPolygon poly : mesh.completedPolygons ) {
-                writer.write( poly.points.size() );
-                for ( final VectorReference ref : poly.points ) {
+                writer.write( poly.getPointCount() );
+                for ( final VectorReference ref : poly.getPoints() ) {
                     writer.write( ref.index );
                 }
             }
@@ -252,7 +277,7 @@ public class ChunkMesh {
             
             final PlaneMesh planeMesh = new PlaneMesh();
             planeMesh.generatedRegions = new ArrayDeque< Polygon >();
-            planeMesh.completedPolygons = new ArrayDeque< IndexedPolygon >();
+            planeMesh.completedPolygons = new ArrayDeque< IndexedTriangle >();
             final int regionCount = buffer.getInt();
             for ( int j = 0; j < regionCount; ++j ) {
                 final int vertexCount = buffer.getInt();
@@ -269,9 +294,22 @@ public class ChunkMesh {
             for ( int j = 0; j < triangleCount; ++j ) {
                 final int vertexCount = buffer.getInt();
                 
-                final IndexedPolygon triangle = new IndexedPolygon();
+                final IndexedTriangle triangle = new IndexedTriangle();
                 for ( int k = 0; k < vertexCount; ++k ) {
-                    triangle.points.add( references[ buffer.getInt() ] );
+                	switch ( k ) {
+                	case 0:
+                		triangle.setPoint1( references[ buffer.getInt() ] );
+                		break;
+                	case 1:
+                		triangle.setPoint2( references[ buffer.getInt() ] );
+                		break;
+                	case 2:
+                		triangle.setPoint3( references[ buffer.getInt() ] );
+                		break;
+            		default:
+            			// Discard
+            			buffer.getInt();
+                	}
                 }
                 
                 planeMesh.completedPolygons.add( triangle );

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/IndexedNGon.java

@@ -0,0 +1,19 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+public class IndexedNGon implements IndexedPolygon {
+	List< VectorReference > points = new ArrayList< VectorReference >();
+
+	@Override
+	public Collection< VectorReference > getPoints() {
+		return points;
+	}
+
+	@Override
+	public int getPointCount() {
+		return points.size();
+	}
+}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/IndexedPolygon.java

@@ -0,0 +1,11 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
+
+import java.util.Collection;
+
+/*
+ * Represents a polygon with associated vector references
+ */
+public abstract interface IndexedPolygon {
+    public Collection< VectorReference > getPoints();
+    public int getPointCount();
+}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/IndexedTriangle.java

@@ -0,0 +1,44 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
+
+import java.util.Collection;
+import java.util.List;
+
+public class IndexedTriangle implements IndexedPolygon {
+	private VectorReference p1;
+	private VectorReference p2;
+	private VectorReference p3;
+	
+	public VectorReference getPoint1() {
+		return p1;
+	}
+	
+	public VectorReference getPoint2() {
+		return p2;
+	}
+	
+	public VectorReference getPoint3() {
+		return p3;
+	}
+	
+	public void setPoint1( VectorReference p1 ) {
+		this.p1 = p1;
+	}
+	
+	public void setPoint2( VectorReference p2 ) {
+		this.p2 = p2;
+	}
+	
+	public void setPoint3( VectorReference p3 ) {
+		this.p3 = p3;
+	}
+	
+	@Override
+	public Collection< VectorReference > getPoints() {
+		return List.of( p1, p2, p3 );
+	}
+
+	@Override
+	public int getPointCount() {
+		return 3;
+	}
+}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/MinecraftPlane.java

@@ -1,10 +1,8 @@
-package com.aaaaahhhhhhh.bananapuncher714.minietest.objects;
-
-import java.io.Serializable;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
 
 import org.bukkit.util.Vector;
 
-import com.aaaaahhhhhhh.bananapuncher714.mesh.Point;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.algorithm.Point;
 
 public class MinecraftPlane implements Comparable< MinecraftPlane > {
     public final PlaneAxis normal;

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/PlaneMesh.java

@@ -0,0 +1,10 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
+
+import java.util.Collection;
+
+import com.aaaaahhhhhhh.bananapuncher714.mesh.algorithm.Polygon;
+
+public class PlaneMesh {
+    public Collection< Polygon > generatedRegions;
+    public Collection< IndexedTriangle > completedPolygons;
+}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/SparseMesh.java

@@ -0,0 +1,38 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
+
+import java.util.HashMap;
+import java.util.Map;
+
+import org.bukkit.util.Vector;
+
+public class SparseMesh extends AbstractMesh {
+	private Map< Vector, BlockDataInformation > data = new HashMap< Vector, BlockDataInformation >();
+	
+    // Bounding box of this mesh
+    private Vector min, max;
+    
+    public SparseMesh( Vector min, Vector max ) {
+    	this.min = min.clone();
+    	this.max = max.clone();
+    }
+
+	@Override
+	public Vector getMinimumCorner() {
+		return min;
+	}
+
+	@Override
+	public Vector getMaximumCorner() {
+		return max;
+	}
+	
+	@Override
+	public BlockDataInformation getBlockDataInformationFor( Vector position ) {
+		return data.get( position.toBlockVector() );
+	}
+	
+	@Override
+	public void setBlockDataInformationFor( BlockDataInformation information, Vector position ) {
+		data.put( position, information );
+	}
+}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/objects/VectorReference.java

@@ -1,4 +1,4 @@
-package com.aaaaahhhhhhh.bananapuncher714.minietest.objects;
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects;
 
 import org.bukkit.util.Vector;
 

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/util/BukkitUtil.java

@@ -18,7 +18,7 @@ import org.bukkit.plugin.SimplePluginManager;
 import org.bukkit.plugin.java.JavaPlugin;
 import org.bukkit.plugin.java.JavaPluginLoader;
 
-import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.McMeshEnvironment;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.McMeshEnvironmentPlugin;
 
 public class BukkitUtil {
 	private static Constructor< PluginCommand > PLUGINCOMMAND_CONSTRUCTOR;
@@ -69,7 +69,7 @@ public class BukkitUtil {
 	public static PluginCommand constructCommand( String id ) {
 		PluginCommand command = null;
 		try {
-			command = PLUGINCOMMAND_CONSTRUCTOR.newInstance( id, JavaPlugin.getPlugin( McMeshEnvironment.class ) );
+			command = PLUGINCOMMAND_CONSTRUCTOR.newInstance( id, JavaPlugin.getPlugin( McMeshEnvironmentPlugin.class ) );
 		} catch (InstantiationException | IllegalAccessException | IllegalArgumentException | InvocationTargetException e) {
 			e.printStackTrace();
 			return null;
@@ -84,7 +84,7 @@ public class BukkitUtil {
 		if ( Bukkit.getServer().isPrimaryThread() ) {
 			Bukkit.getPluginManager().callEvent( event );
 		} else {
-			Bukkit.getScheduler().scheduleSyncDelayedTask( JavaPlugin.getPlugin( McMeshEnvironment.class ), () -> { callEventSync( event ); } );
+			Bukkit.getScheduler().scheduleSyncDelayedTask( JavaPlugin.getPlugin( McMeshEnvironmentPlugin.class ), () -> { callEventSync( event ); } );
 		}
 	}
 	
@@ -111,7 +111,7 @@ public class BukkitUtil {
 						if ( JAVAPLUGINLOADER_GETCLASS_1 != null ) {
 							return ( Class< ? > ) JAVAPLUGINLOADER_GETCLASS_1.invoke( loader, name );
 						} else {
-							return ( Class< ? > ) JAVAPLUGINLOADER_GETCLASS_2.invoke( loader, name, true, JavaPlugin.getPlugin( MiniePlugin.class ).getDescription() );
+							return ( Class< ? > ) JAVAPLUGINLOADER_GETCLASS_2.invoke( loader, name, true, JavaPlugin.getPlugin( McMeshEnvironmentPlugin.class ).getDescription() );
 						}
 					}
 				}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/util/ChunkMeshUtil.java

@@ -2,7 +2,7 @@ package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.util;
 
 import java.nio.ByteBuffer;
 
-import com.aaaaahhhhhhh.bananapuncher714.minietest.objects.ChunkMesh;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects.ChunkMesh;
 
 public class ChunkMeshUtil {
     public static byte[] serialize( final ChunkMesh mesh ) {

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/environment/util/NmsUtil.java

@@ -0,0 +1,59 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.environment.util;
+
+import org.bukkit.Location;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.craftbukkit.v1_21_R6.CraftWorld;
+import org.bukkit.craftbukkit.v1_21_R6.block.data.CraftBlockData;
+import org.bukkit.util.BoundingBox;
+import org.bukkit.util.Vector;
+
+import net.minecraft.core.BlockPosition;
+import net.minecraft.server.level.WorldServer;
+import net.minecraft.world.phys.shapes.VoxelShape;
+import net.minecraft.world.phys.shapes.VoxelShapeCollision;
+
+public class NmsUtil {
+    // 1.21.5
+	public static VoxelShape getShape( BlockData blockData, Location location, BlockShapeType type ) {
+        final CraftBlockData data = ( CraftBlockData ) blockData;
+        
+        WorldServer server = null;
+        BlockPosition pos = null;
+        if ( location != null ) {
+            server = ( ( CraftWorld ) location.getWorld() ).getHandle();
+            pos = new BlockPosition( location.getBlockX(), location.getBlockY(), location.getBlockZ() );
+        }
+
+        switch ( type ) {
+        default:
+        case SHAPE:
+            return data.getState().f( server, pos );
+        case COLLISION_SHAPE:
+            return data.getState().g( server, pos );
+        case VISUAL_SHAPE:
+            return data.getState().c( server, pos, VoxelShapeCollision.a() );
+        case INTERACTION_SHAPE:
+            return data.getState().i( server, pos );
+        case BLOCK_SUPPORT_SHAPE:
+            return data.getState().h( server, pos );
+        }
+    }
+    
+    public static BoundingBox[] convertFrom( final VoxelShape shape ) {
+        return convertFrom( shape, new Vector() );
+    }
+    
+    public static BoundingBox[] convertFrom( final VoxelShape shape, final Vector offset ) {
+        return shape.e().stream()
+            .map( aabb -> { return new BoundingBox( aabb.a, aabb.b, aabb.c, aabb.d, aabb.e, aabb.f ).shift( offset ); } )
+            .toArray( BoundingBox[]::new );
+    }
+    
+    public enum BlockShapeType {
+        SHAPE,
+        COLLISION_SHAPE,
+        VISUAL_SHAPE,
+        INTERACTION_SHAPE,
+        BLOCK_SUPPORT_SHAPE
+    }
+}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/minietest/ChunkMeshCache.java

@@ -1,51 +0,0 @@
-package com.aaaaahhhhhhh.bananapuncher714.minietest;
-
-import java.io.File;
-import java.util.Collection;
-import java.util.HashSet;
-import java.util.Map;
-import java.util.TreeMap;
-import java.util.concurrent.locks.ReentrantLock;
-
-import org.bukkit.Chunk;
-
-import com.aaaaahhhhhhh.bananapuncher714.minietest.objects.ChunkLocation;
-import com.aaaaahhhhhhh.bananapuncher714.minietest.objects.ChunkMesh;
-
-public class ChunkMeshCache {
-    final File directory;
-    Map< ChunkLocation, ChunkMesh > meshes = new TreeMap< ChunkLocation, ChunkMesh >();
-    Collection< ChunkLocation > shouldRemove = new HashSet< ChunkLocation >();
-    ReentrantLock lock = new ReentrantLock();
-    
-    public ChunkMeshCache( final File directory ) {
-        this.directory = directory;
-    }
-    
-    public void onChunkLoad( final Chunk chunk ) {
-        final ChunkLocation location = new ChunkLocation( chunk );
-        
-        // Unqueue this chunk for removal if it's queued
-        shouldRemove.remove( location );
-        
-        // TODO Add a ticket
-        chunk.addPluginChunkTicket( null );
-
-        // Does the mesh map contain the current location?
-        {
-            // If not, then load or mesh the chunk
-            // Emit a chunk mesh complete event
-        }
-        
-    }
-    
-    public void saveAndRemove( final ChunkLocation location ) {
-        lock.lock();
-        meshes.remove( location );
-        lock.unlock();
-    }
-    
-    public void saveAndRemoveAll() {
-        lock.unlock();
-    }
-}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/minietest/MinieTest.java

@@ -1,37 +0,0 @@
-package com.aaaaahhhhhhh.bananapuncher714.minietest;
-
-import com.jme3.bullet.PhysicsSpace;
-import com.jme3.bullet.PhysicsSpace.BroadphaseType;
-import com.jme3.bullet.collision.shapes.BoxCollisionShape;
-import com.jme3.bullet.collision.shapes.PlaneCollisionShape;
-import com.jme3.bullet.objects.PhysicsBody;
-import com.jme3.bullet.objects.PhysicsRigidBody;
-import com.jme3.math.Plane;
-import com.jme3.math.Vector3f;
-
-public class MinieTest {
-    
-    public static void main( String[] args ) {
-        System.loadLibrary( "bulletjme" );
-        
-        System.out.println( "Testing a simple PhysicsSpace" );
-        PhysicsSpace space = new PhysicsSpace( BroadphaseType.DBVT );
-        
-        PlaneCollisionShape plane = new PlaneCollisionShape( new Plane( new Vector3f( 0, 1, 0 ), 0 ) );
-        PhysicsRigidBody planeBody = new PhysicsRigidBody( plane, PhysicsBody.massForStatic );
-        planeBody.setPhysicsLocation( new Vector3f( 0, 0, 0 ) );
-        
-        BoxCollisionShape box = new BoxCollisionShape( 0.5f );
-        PhysicsRigidBody rigid = new PhysicsRigidBody( box, 1f );
-        rigid.setPhysicsLocation( new Vector3f( 0f, 100f, 0f ) );
-        
-        space.addCollisionObject( rigid );
-        space.addCollisionObject( planeBody );
-        
-        for ( float i = 0; i < 9.6; i += 1 / 256.0 ) {
-            space.update( i );
-            Vector3f loc = rigid.getPhysicsLocation();
-            System.out.println( i + "\t: " + loc.getX() + ", " + loc.getY() + ", " + loc.getZ() );
-        }
-    }
-}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/minietest/objects/BlockDataType.java

@@ -1,5 +0,0 @@
-package com.aaaaahhhhhhh.bananapuncher714.minietest.objects;
-
-public enum BlockDataType {
-    NONE, COMPLEX, SOLID
-}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/minietest/objects/IndexedPolygon.java

@@ -1,8 +0,0 @@
-package com.aaaaahhhhhhh.bananapuncher714.minietest.objects;
-
-import java.util.ArrayList;
-import java.util.List;
-
-public class IndexedPolygon {
-    public List< VectorReference > points = new ArrayList< VectorReference >();
-}

plugin/environment/src/main/java/com/aaaaahhhhhhh/bananapuncher714/minietest/objects/PlaneMesh.java

@@ -1,10 +0,0 @@
-package com.aaaaahhhhhhh.bananapuncher714.minietest.objects;
-
-import java.util.Collection;
-
-import com.aaaaahhhhhhh.bananapuncher714.mesh.Polygon;
-
-public class PlaneMesh {
-    public Collection< Polygon > generatedRegions;
-    public Collection< IndexedPolygon > completedPolygons;
-}

plugin/environment/src/main/resources/plugin.yml

@@ -1,14 +1,6 @@
 name: MC-Mesh-Environment
-main: com.aaaaahhhhhhh.bananapuncher714.minietest.MiniePlugin
+main: com.aaaaahhhhhhh.bananapuncher714.mesh.environment.McMeshEnvironmentPlugin
 version: 0.0.1
 description: BulletJME and MC-Mesh integration
 author: BananaPuncher714
-api-version: 1.13
-#libraries:
-#- com.github.stephengold:Minie:7.5.0
-
-commands:
-  minie:
-    description: Main Minie command
-    aliases: []
-    permission: minie
+api-version: 1.13

plugin/physics/pom.xml

@@ -0,0 +1,53 @@
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+	xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
+	<modelVersion>4.0.0</modelVersion>
+	<parent>
+		<groupId>com.aaaaahhhhhhh.bananapuncher714</groupId>
+		<artifactId>mc-mesh-plugin</artifactId>
+		<version>0.0.1</version>
+	</parent>
+	<artifactId>mc-mesh-plugin-physics</artifactId>
+	<version>0.0.1-SNAPSHOT</version>
+
+	<dependencies>
+		<dependency>
+			<groupId>org.spigotmc</groupId>
+			<artifactId>spigot</artifactId>
+			<version>1.21.10-R0.1-SNAPSHOT</version>
+			<scope>provided</scope>
+		</dependency>
+		<dependency>
+			<groupId>com.aaaaahhhhhhh.bananapuncher714</groupId>
+			<artifactId>mc-mesh-plugin-environment</artifactId>
+			<version>0.0.1-SNAPSHOT</version>
+			<scope>provided</scope>
+		</dependency>
+	</dependencies>
+
+	<build>
+		<plugins>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-shade-plugin</artifactId>
+				<version>3.1.0</version>
+				<executions>
+					<execution>
+						<phase>package</phase>
+						<goals>
+							<goal>shade</goal>
+						</goals>
+					</execution>
+				</executions>
+			</plugin>
+			<plugin>
+				<groupId>org.apache.maven.plugins</groupId>
+				<artifactId>maven-compiler-plugin</artifactId>
+				<version>3.14.1</version>
+				<configuration>
+					<release>21</release>
+				</configuration>
+			</plugin>
+		</plugins>
+	</build>
+</project>

plugin/physics/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/physics/AuxiliaryDisplayStruct.java

@@ -0,0 +1,22 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.physics;
+
+import org.bukkit.entity.Display;
+import org.bukkit.util.Vector;
+
+class AuxiliaryDisplayStruct {
+    Display display;
+    Vector offset;
+    Vector scale;
+    
+    AuxiliaryDisplayStruct( Display display, Vector offset ) {
+        this.display = display;
+        this.offset = offset.clone();
+        this.scale = new Vector( 1, 1, 1 );
+    }
+    
+    AuxiliaryDisplayStruct setScale( Vector scale ) {
+        this.scale = scale.clone();
+        
+        return this;
+    }
+}

plugin/physics/src/main/java/com/aaaaahhhhhhh/bananapuncher714/mesh/physics/McMeshPhysicsPlugin.java

@@ -0,0 +1,342 @@
+package com.aaaaahhhhhhh.bananapuncher714.mesh.physics;
+
+import java.io.File;
+import java.util.HashMap;
+import java.util.HashSet;
+import java.util.Iterator;
+import java.util.Map;
+import java.util.Map.Entry;
+import java.util.Set;
+
+import org.bukkit.Bukkit;
+import org.bukkit.Location;
+import org.bukkit.Material;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.command.CommandSender;
+import org.bukkit.entity.BlockDisplay;
+import org.bukkit.entity.Player;
+import org.bukkit.inventory.ItemStack;
+import org.bukkit.plugin.java.JavaPlugin;
+import org.bukkit.util.BoundingBox;
+import org.bukkit.util.Transformation;
+import org.bukkit.util.Vector;
+import org.joml.Matrix4f;
+import org.joml.Quaternionf;
+
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.CommandParameters;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.SubCommand;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.executor.CommandExecutableMessage;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator.InputValidatorDouble;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator.InputValidatorInt;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.command.validator.sender.SenderValidatorPlayer;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.EnvironmentHandler;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.MeshEnvironment;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects.ChunkLocation;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.objects.ChunkMesh;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.util.NmsUtil;
+import com.aaaaahhhhhhh.bananapuncher714.mesh.environment.util.NmsUtil.BlockShapeType;
+import com.jme3.bullet.PhysicsSpace;
+import com.jme3.bullet.PhysicsSpace.BroadphaseType;
+import com.jme3.bullet.collision.PhysicsCollisionEvent;
+import com.jme3.bullet.collision.PhysicsCollisionListener;
+import com.jme3.bullet.collision.PhysicsCollisionObject;
+import com.jme3.bullet.collision.shapes.BoxCollisionShape;
+import com.jme3.bullet.collision.shapes.CollisionShape;
+import com.jme3.bullet.collision.shapes.CompoundCollisionShape;
+import com.jme3.bullet.collision.shapes.MeshCollisionShape;
+import com.jme3.bullet.collision.shapes.SphereCollisionShape;
+import com.jme3.bullet.collision.shapes.infos.IndexedMesh;
+import com.jme3.bullet.objects.PhysicsBody;
+import com.jme3.bullet.objects.PhysicsRigidBody;
+import com.jme3.math.Quaternion;
+import com.jme3.math.Vector3f;
+
+public class McMeshPhysicsPlugin extends JavaPlugin {
+    private static final int TIME_STEPS = 5;
+    private static final float SIMULATION_SPEED = 1f;
+    
+    private MeshEnvironment environment;
+    
+    private PhysicsSpace space;
+    private boolean paused = false;
+    private boolean teleportOnDeactivate = false;
+    private float tick = 0;
+    private Map< PhysicsCollisionObject, AuxiliaryDisplayStruct > linkedDisplays = new HashMap< PhysicsCollisionObject, AuxiliaryDisplayStruct >();
+    private Set< PhysicsCollisionObject > active = new HashSet< PhysicsCollisionObject >();
+    private Map< ChunkLocation, PhysicsRigidBody > chunks = new HashMap< ChunkLocation, PhysicsRigidBody >();
+    
+    @Override
+    public void onEnable() {
+        registerCommands();
+        
+        space = new PhysicsSpace( BroadphaseType.DBVT );
+        space.setAccuracy( 1f / ( TIME_STEPS * 20f ) );
+        
+        environment = new MeshEnvironment( this, new File( getDataFolder(), "environment" ) );
+        environment.setHandler( new EnvironmentHandler() {
+            @Override
+            public void onMeshLoad( ChunkLocation location, ChunkMesh mesh ) {
+                // Now, create a physics object from the chunk mesh
+                final IndexedMesh nativeMesh = mesh.toIndexedMesh();
+                // Enable quantized AABB compression... hopefully that doesn't mess with the accuracy or anything...
+                final MeshCollisionShape meshCollision = new MeshCollisionShape( true, nativeMesh );
+                
+                // Create a rigid body
+                PhysicsRigidBody rigid = new PhysicsRigidBody( meshCollision, PhysicsBody.massForStatic );
+                rigid.setPhysicsLocation( new Vector3f( location.getX() << 4, location.getWorld().getMinHeight(), location.getZ() << 4 ) );
+                rigid.setPhysicsRotation( new Quaternion( 0, 0, 0, 1 ) );
+                rigid.setKinematic( false );
+                
+                Bukkit.getScheduler().runTask( McMeshPhysicsPlugin.this, () -> {
+                    space.addCollisionObject( rigid );
+        
+                    PhysicsRigidBody old = chunks.put( location, rigid );
+                    if ( old != null ) {
+                        space.remove( old );
+                    }
+                } );
+            }
+
+            @Override
+            public void onMeshUnload( ChunkLocation location, ChunkMesh mesh ) {
+                space.removeCollisionObject( chunks.get( location ) );
+            }
+
+            @Override
+            public void onMeshUpdate( ChunkLocation location, ChunkMesh mesh ) {
+             // Now, create a physics object from the chunk mesh
+                final IndexedMesh nativeMesh = mesh.toIndexedMesh();
+                // Enable quantized AABB compression... hopefully that doesn't mess with the accuracy or anything...
+                final MeshCollisionShape meshCollision = new MeshCollisionShape( true, nativeMesh );
+                
+                // Create a rigid body
+                PhysicsRigidBody rigid = new PhysicsRigidBody( meshCollision, PhysicsBody.massForStatic );
+                rigid.setPhysicsLocation( new Vector3f( location.getX() << 4, location.getWorld().getMinHeight(), location.getZ() << 4 ) );
+                rigid.setPhysicsRotation( new Quaternion( 0, 0, 0, 1 ) );
+                rigid.setKinematic( false );
+                
+                Bukkit.getScheduler().runTask( McMeshPhysicsPlugin.this, () -> {
+                    space.addCollisionObject( rigid );
+        
+                    PhysicsRigidBody old = chunks.put( location, rigid );
+                    if ( old != null ) {
+                        space.remove( old );
+                    }
+                } );
+                
+                space.activateAll( true );
+            }
+        } );
+        
+        Bukkit.getScheduler().runTaskTimer( this, () -> {
+            if ( !paused ) {
+                // Update the real world with the physics space objects
+                space.distributeEvents();
+                space.update( tick, TIME_STEPS );
+
+                for ( Iterator< Entry< PhysicsCollisionObject, AuxiliaryDisplayStruct > > it = linkedDisplays.entrySet().iterator(); it.hasNext(); ) {
+                    Entry< PhysicsCollisionObject, AuxiliaryDisplayStruct > entry = it.next();
+                    PhysicsCollisionObject obj = entry.getKey();
+                    AuxiliaryDisplayStruct disp = entry.getValue();
+                    
+                    if ( !disp.display.isValid() ) {
+                        it.remove();
+                        space.removeCollisionObject( obj );
+                        
+                        continue;
+                    }
+                    
+                    Location displayLocation = disp.display.getLocation();
+                    
+                    // Do not calculate for this object if it is inactive
+                    if ( !obj.isActive() ) {
+                        if ( teleportOnDeactivate && active.remove( obj ) ) {
+                            // Newly deactivated object, teleport the display to the actual position to prevent the translation from getting too large
+                            
+                            Transformation currentTransformation = disp.display.getTransformation();
+                            org.joml.Vector3f trans = currentTransformation.getTranslation();
+                            
+                            displayLocation.add( trans.x(), trans.y(), trans.z() );
+                            disp.display.teleport( displayLocation );
+                            
+                            Transformation newTrans = new Transformation( new org.joml.Vector3f( 0, 0, 0 ), currentTransformation.getLeftRotation(), currentTransformation.getScale(), currentTransformation.getRightRotation() );
+                            disp.display.setInterpolationDelay( 0 );
+                            disp.display.setInterpolationDuration( 0 );
+                            disp.display.setTransformation( newTrans );
+                        }
+                        
+                        continue;
+                    } else {
+                        active.add( obj );
+                    }
+                    
+                    Vector3f location = obj.getPhysicsLocation();
+                    Quaternion rotation = new Quaternion();
+                    obj.getPhysicsRotation( rotation );
+                    
+                    Vector offsetVec = disp.offset;
+                    Vector scale = disp.scale;
+                    Matrix4f transformRot = new Matrix4f();
+                    transformRot.set( new Quaternionf( rotation.getX(), rotation.getY(), rotation.getZ(), rotation.getW() ) );
+                    
+                    transformRot.mul( 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, - ( float ) offsetVec.getX(), - ( float ) offsetVec.getY(), - ( float ) offsetVec.getZ(), 1 );
+                    transformRot.mul( ( float ) scale.getX(), 0, 0, 0, 0, ( float ) scale.getY(), 0, 0, 0, 0, ( float ) scale.getZ(), 0, 0, 0, 0, 1 );
+                    Matrix4f transMat = new Matrix4f( 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, ( float ) ( location.getX() - displayLocation.getX() ), ( float ) ( location.getY() - displayLocation.getY() ), ( float ) ( location.getZ() - displayLocation.getZ() ), 1 );
+
+                    disp.display.setInterpolationDelay( 0 );
+                    disp.display.setInterpolationDuration( 2 );
+                    disp.display.setTransformationMatrix( transMat.mul( transformRot ) );
+                }
+                
+                tick += SIMULATION_SPEED / 20f;
+            }
+        }, 0, 1 );
+    }
+    
+    private void registerCommands() {
+        new SubCommand( "minie" )
+            .addSenderValidator( new SenderValidatorPlayer() )
+            .add( new SubCommand( "spawn" )
+                    .add( new SubCommand( new InputValidatorDouble( 0.01, 100 ) )
+                            .defaultTo( this::spawnBlock ) )
+                    .defaultTo( this::spawnBlock ) )
+            .add( new SubCommand( "toggle" )
+                    .defaultTo( ( sender, args, params ) -> {
+                        paused = !paused;
+                    } ) )
+            .add( new SubCommand( "teleport" )
+                    .defaultTo( ( sender, args, params ) -> {
+                        teleportOnDeactivate = !teleportOnDeactivate;
+                    } ) )
+            .add( new SubCommand( "impulse" )
+                    .add( new SubCommand( new InputValidatorInt() )
+                            .defaultTo( ( sender, args, params ) -> {
+                                Player player = ( Player ) sender;
+                                Location loc = player.getLocation();
+                                
+                                impulse( new Vector3f( ( float ) loc.getX(), ( float ) loc.getY(), ( float ) loc.getZ() ), params.getLast( int.class ) );
+                            } ) )
+                    .defaultTo( ( sender, args, params ) -> {
+                        Player player = ( Player ) sender;
+                        Location loc = player.getLocation();
+                        
+                        impulse( new Vector3f( ( float ) loc.getX(), ( float ) loc.getY(), ( float ) loc.getZ() ), 15f );
+                    } ) )
+            .defaultTo( new CommandExecutableMessage( "An argument must be provided" ) )
+            .whenUnknown( new CommandExecutableMessage( "Unknown argument" ) )
+            .applyTo( getCommand( "minie" ) );
+    }
+    
+    private void impulse( Vector3f location, float power ) {
+        PhysicsRigidBody rigid = new PhysicsRigidBody( new SphereCollisionShape( 20 ), 1f );
+        rigid.setPhysicsLocation( location );
+        space.contactTest( rigid, new PhysicsCollisionListener() {
+            @Override
+            public void collision( PhysicsCollisionEvent event ) {
+                if ( event.getObjectB() instanceof PhysicsRigidBody ) {
+                    PhysicsRigidBody objB = ( PhysicsRigidBody ) event.getObjectB();
+                    
+                    Vector3f rLoc = objB.getPhysicsLocation();
+                    Vector3f to = rLoc.subtract( ( float ) location.getX(), ( float ) location.getY(), ( float ) location.getZ() );
+    
+                    float distSq = to.lengthSquared();
+    
+                    if ( distSq != 0 ) {
+                        if ( power / distSq > 1 ) {
+                            objB.applyCentralImpulse( to.normalize().mult( power / distSq ) );
+                        }
+                    }
+                }
+               
+            }
+        } );
+    }
+    
+    private void spawnBlock( final CommandSender sender, final String[] args, final CommandParameters params ) {
+        Player player = ( Player ) sender;
+        Location loc = player.getLocation();
+        
+        // Optional scale
+        double scale = 1;
+        if ( params.size() > 2 ) {
+            scale = params.getFirst( double.class );
+        }
+        
+        loc.setPitch( 0 );
+        loc.setDirection( new Vector( 0, 0, 0 ) );
+        
+        BlockData displayData; 
+        ItemStack item = player.getInventory().getItemInMainHand();
+        if ( item != null && item.getType() != Material.AIR && item.getType().isBlock() ) {
+            displayData = item.getType().createBlockData();
+        } else {
+            displayData = Material.TNT.createBlockData();
+        }
+        
+        BoundingBox[] boxes = NmsUtil.convertFrom( NmsUtil.getShape( displayData, null, BlockShapeType.SHAPE ) );
+        Vector blockCenter = calculateCenter( boxes );
+        
+        CollisionShape box;
+        if ( boxes.length == 0 ) {
+            player.sendMessage( "No bounding box detected! Wrong method?" );
+            return;
+        }
+        
+        if ( boxes.length == 1 ) {
+            Vector min = boxes[ 0 ].getMin();
+            Vector center = boxes[ 0 ].getCenter().subtract( min );
+            box = new BoxCollisionShape( ( float ) center.getX(), ( float ) center.getY(), ( float ) center.getZ() );
+        } else {
+            CompoundCollisionShape compound = new CompoundCollisionShape();
+            for ( BoundingBox aabb : boxes ) {
+                Vector min = aabb.getMin();
+                Vector center = aabb.getCenter();
+                Vector half = center.clone().subtract( min );
+                center.subtract( blockCenter );
+                CollisionShape subShape = new BoxCollisionShape( ( float ) half.getX(), ( float ) half.getY(), ( float ) half.getZ() );
+                compound.addChildShape( subShape, ( float ) center.getX(), ( float ) center.getY(), ( float ) center.getZ() );
+            }
+            box = compound;
+        }
+        
+        box.setScale( ( float ) scale );
+        
+        PhysicsRigidBody rigid = new PhysicsRigidBody( box, 1f );
+        
+        // Since the center of the rigid body and the box shape are different, we need to offset the location
+        rigid.setPhysicsLocation( new Vector3f( ( float ) ( loc.getX() + blockCenter.getX() ), ( float ) ( loc.getY() + blockCenter.getY() ), ( float ) ( loc.getZ() + blockCenter.getZ() ) ) );
+        
+        // Convert the display direction vector to a quaternion
+        rigid.setPhysicsRotation( new Quaternion( 0, 0, 0, 1 ) );
+        
+        rigid.setMass( rigid.getMass() * ( float ) ( scale * scale ) );
+        
+        space.addCollisionObject( rigid );
+        
+        // Create the display
+        BlockDisplay display = loc.getWorld().spawn( loc, BlockDisplay.class, d -> {
+            d.setBlock( displayData );
+            d.setViewRange( 1000 );
+        } );
+        
+        linkedDisplays.put( rigid, new AuxiliaryDisplayStruct( display, blockCenter.multiply( scale ) ).setScale( new Vector( scale, scale, scale ) ) );
+        
+        player.sendMessage( "Created display" );
+    }
+    
+    private static Vector calculateCenter( BoundingBox[] boxes ) {
+        Vector center = new Vector( 0, 0, 0 );
+        // TODO Throw error, probably
+        if ( boxes.length == 0 ) {
+            return center;
+        }
+        
+        double totalVolume = 0;
+        for ( BoundingBox box : boxes ) {
+            Vector mid = box.getCenter();
+            center.add( mid.multiply( box.getVolume() ) );
+            totalVolume += box.getVolume();
+        }
+        return center.multiply( 1 / totalVolume );
+    }
+}

plugin/physics/src/main/resources/plugin.yml

@@ -0,0 +1,15 @@
+name: MC-Mesh-Physics
+main: com.aaaaahhhhhhh.bananapuncher714.mesh.physics.McMeshPhysicsPlugin
+version: 0.0.1
+description: BulletJME and MC-Mesh integration
+author: BananaPuncher714
+api-version: 1.13
+depend: [ "Mc-Mesh-Environment" ]
+#libraries:
+#- com.github.stephengold:Minie:7.5.0
+
+commands:
+  minie:
+    description: Main Minie command
+    aliases: []
+    permission: minie

plugin/pom.xml

@@ -12,6 +12,7 @@
     <packaging>pom</packaging>
 
     <modules>
-        <!-- <module>environment</module> -->
+        <module>environment</module>
+        <module>physics</module>
     </modules>
 </project>