Update simulator preview

Signed-off-by: yoyosource <yoyosource@nidido.de>

BauSystem_19/src/de/steamwar/bausystem/features/simulator/AxisMovementLimiter.java

@@ -0,0 +1,166 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2023  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bausystem.features.simulator;
+
+import org.bukkit.Axis;
+import org.bukkit.util.BoundingBox;
+import org.bukkit.util.Vector;
+import org.bukkit.util.VoxelShape;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class AxisMovementLimiter {
+
+    private Axis axis;
+    private double movement;
+
+    private double minX;
+    private double maxX;
+    private double minY;
+    private double maxY;
+    private double minZ;
+    private double maxZ;
+
+    public AxisMovementLimiter(double x, double y, double z, Axis axis, double movement) {
+        this.axis = axis;
+        this.movement = movement;
+
+        // Calculate the min and max values for the movement
+        minX = x;
+        maxX = x + 0.98;
+
+        minY = y;
+        maxY = y + 0.98;
+
+        minZ = z;
+        maxZ = z + 0.98;
+
+        switch (axis) {
+            case X:
+                if (movement < 0) {
+                    minX += movement;
+                } else if (movement > 0) {
+                    maxX += movement;
+                }
+                break;
+            case Y:
+                if (movement < 0) {
+                    minY += movement;
+                } else if (movement > 0) {
+                    maxY += movement;
+                }
+                break;
+            case Z:
+                if (movement < 0) {
+                    minZ += movement;
+                } else if (movement > 0) {
+                    maxZ += movement;
+                }
+                break;
+        }
+    }
+
+    private List<Vector> possibleCollisions() {
+        int minX = TNT.floor(this.minX);
+        int maxX = TNT.floor(this.maxX);
+        int minY = TNT.floor(this.minY) - 1;
+        int maxY = TNT.floor(this.maxY);
+        int minZ = TNT.floor(this.minZ);
+        int maxZ = TNT.floor(this.maxZ);
+
+        List<Vector> vectors = new ArrayList<>();
+        for (int x = minX; x <= maxX; x++) {
+            for (int y = minY; y <= maxY; y++) {
+                for (int z = minZ; z <= maxZ; z++) {
+                    vectors.add(new Vector(x, y, z));
+                }
+            }
+        }
+        return vectors;
+    }
+
+    public double run() {
+        BoundingBox movementBoundingBox = new BoundingBox(minX, minY, minZ, maxX, maxY, maxZ);
+        List<Vector> vectors = possibleCollisions();
+
+        Double collision = null;
+        for (Vector vector : vectors) {
+            VoxelShape voxelShape = Simulator19.getVoxelShape(vector.getBlockX(), vector.getBlockY(), vector.getBlockZ());
+            for (BoundingBox boundingBox : voxelShape.getBoundingBoxes()) {
+                boundingBox = boundingBox.clone().shift(vector);
+                boolean collides = boundingBox.overlaps(movementBoundingBox);
+                if (!collides) continue;
+
+                double value;
+                switch (axis) {
+                    case X:
+                        if (movement < 0) {
+                            value = boundingBox.getMaxX();
+                        } else {
+                            value = boundingBox.getMinX() - 0.98;
+                        }
+                        break;
+                    case Y:
+                        if (movement < 0) {
+                            value = boundingBox.getMaxY();
+                        } else {
+                            value = boundingBox.getMinY() - 0.98;
+                        }
+                        break;
+                    case Z:
+                        if (movement < 0) {
+                            value = boundingBox.getMaxZ();
+                        } else {
+                            value = boundingBox.getMinZ() - 0.98;
+                        }
+                        break;
+                    default:
+                        throw new IllegalStateException("Unexpected value: " + axis);
+                }
+
+                if (collision == null) {
+                    collision = value;
+                } else {
+                    if (movement < 0) {
+                        collision = Math.max(collision, value);
+                    } else {
+                        collision = Math.min(collision, value);
+                    }
+                }
+            }
+        }
+
+        if (collision == null) {
+            return movement;
+        } else {
+            switch (axis) {
+                case X:
+                    return movement + (collision - minX);
+                case Y:
+                    return movement + (collision - minY);
+                case Z:
+                    return movement + (collision - minZ);
+                default:
+                    throw new IllegalStateException("Unexpected value: " + axis);
+            }
+        }
+    }
+}

BauSystem_19/src/de/steamwar/bausystem/features/simulator/Simulator19.java

@@ -23,8 +23,12 @@ import org.bukkit.Bukkit;
 import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.block.data.BlockData;
+import org.bukkit.util.BoundingBox;
 import org.bukkit.util.Vector;
+import org.bukkit.util.VoxelShape;
 
+import java.util.Collection;
+import java.util.Collections;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -34,6 +38,7 @@ public class Simulator19 implements Simulator {
 
     private static final Map<Vector, Material> BLOCK_TYPES_MAP = new HashMap<>();
     private static final Map<Vector, BlockData> BLOCK_DATA_MAP = new HashMap<>();
+    private static final Map<Vector, VoxelShape> COLLISION_DATA_MAP = new HashMap<>();
 
     @Override
     public synchronized void run() {
@@ -45,6 +50,7 @@ public class Simulator19 implements Simulator {
 
         BLOCK_TYPES_MAP.clear();
         BLOCK_DATA_MAP.clear();
+        COLLISION_DATA_MAP.clear();
     }
 
     public static Material getBlockType(int x, int y, int z) {
@@ -57,9 +63,25 @@ public class Simulator19 implements Simulator {
         return BLOCK_DATA_MAP.computeIfAbsent(vector, v -> WORLD.getBlockAt(v.getBlockX(), v.getBlockY(), v.getBlockZ()).getBlockData());
     }
 
-    public static void setBlock(int x, int y, int z, Material material) {
+    public static VoxelShape getVoxelShape(int x, int y, int z) {
         Vector vector = new Vector(x, y, z);
-        BLOCK_TYPES_MAP.put(vector, material);
-        BLOCK_DATA_MAP.put(vector, material.createBlockData());
+        return COLLISION_DATA_MAP.computeIfAbsent(vector, v -> WORLD.getBlockAt(v.getBlockX(), v.getBlockY(), v.getBlockZ()).getCollisionShape());
+    }
+
+    public static void clearBlock(int x, int y, int z) {
+        Vector vector = new Vector(x, y, z);
+        BLOCK_TYPES_MAP.put(vector, Material.AIR);
+        BLOCK_DATA_MAP.put(vector, Material.AIR.createBlockData());
+        COLLISION_DATA_MAP.put(vector, new VoxelShape() {
+            @Override
+            public Collection<BoundingBox> getBoundingBoxes() {
+                return Collections.emptyList();
+            }
+
+            @Override
+            public boolean overlaps(BoundingBox other) {
+                return false;
+            }
+        });
     }
 }

BauSystem_19/src/de/steamwar/bausystem/features/simulator/TNT.java

@@ -21,23 +21,16 @@ package de.steamwar.bausystem.features.simulator;
 
 import lombok.Getter;
 import lombok.Setter;
-import net.minecraft.core.EnumDirection;
 import net.minecraft.world.level.RayTrace;
-import net.minecraft.world.phys.AxisAlignedBB;
 import net.minecraft.world.phys.MovingObjectPosition;
 import net.minecraft.world.phys.Vec3D;
-import net.minecraft.world.phys.shapes.VoxelShape;
-import net.minecraft.world.phys.shapes.VoxelShapes;
+import org.bukkit.Axis;
 import org.bukkit.Material;
-import org.bukkit.World;
 import org.bukkit.block.data.BlockData;
 import org.bukkit.block.data.type.*;
 import org.bukkit.craftbukkit.v1_19_R2.CraftWorld;
-import org.bukkit.craftbukkit.v1_19_R2.entity.CraftEntity;
-import org.bukkit.entity.Entity;
 import org.bukkit.util.Vector;
 
-import java.util.List;
 import java.util.Random;
 
 @Getter
@@ -95,7 +88,7 @@ public class TNT {
     }
 
     private void move(Vector movement) {
-        if (movement.lengthSquared() > 1.0E-7) {
+        if (movementMultiplier.lengthSquared() > 1.0E-7) {
             movement.multiply(movementMultiplier);
             movementMultiplier = new Vector(0, 0, 0);
             vx = 0;
@@ -104,19 +97,20 @@ public class TNT {
         }
 
         Vector vec3d = adjustMovementForCollisions(movement);
+        // System.out.println(movement + " " + vec3d);
         double lengthSquared = vec3d.lengthSquared();
         if (lengthSquared > 1.0E-7) {
             if (fallDistance != 0.0F) {
                 // TODO: This could be wrong
-                MovingObjectPosition movingObjectPosition = ((CraftWorld) Simulator19.WORLD).getHandle().a(new RayTrace(new Vec3D(x, y, z), new Vec3D(x + vx, y + vy, z + vz), RayTrace.BlockCollisionOption.d, RayTrace.FluidCollisionOption.d, null));
+                MovingObjectPosition movingObjectPosition = ((CraftWorld) Simulator19.WORLD).getHandle().a(new RayTrace(new Vec3D(x, y, z), new Vec3D(x + vec3d.getX(), y + vec3d.getY(), z + vec3d.getZ()), RayTrace.BlockCollisionOption.d, RayTrace.FluidCollisionOption.d, null));
                 if (movingObjectPosition.c() != MovingObjectPosition.EnumMovingObjectType.a) {
                     onLanding();
                 }
             }
 
-            this.x += movement.getX();
-            this.y += movement.getY();
-            this.z += movement.getZ();
+            this.x += vec3d.getX();
+            this.y += vec3d.getY();
+            this.z += vec3d.getZ();
         }
 
         boolean bl = !approximatelyEquals(movement.getX(), vec3d.getX());
@@ -128,7 +122,7 @@ public class TNT {
         Vector blockPos = getLandingPos();
         Material material = Simulator19.getBlockType(blockPos.getBlockX(), blockPos.getBlockY(), blockPos.getBlockZ());
         BlockData blockData = Simulator19.getBlockData(blockPos.getBlockX(), blockPos.getBlockY(), blockPos.getBlockZ());
-        fall(vec3d.getX(), onGround);
+        fall(vec3d.getY(), onGround);
 
         if (horizontalCollision) {
             this.vx = bl ? 0.0 : this.vx;
@@ -140,11 +134,12 @@ public class TNT {
                 if (this.vy < 0.0) {
                     this.vy = -this.vy * 0.8;
                 }
-            }
-            if (blockData instanceof Bed) {
+            } else if (blockData instanceof Bed) {
                 if (this.vy < 0.0) {
                     this.vy = -this.vy * 0.6600000262260437 * 0.8;
                 }
+            } else {
+                this.vy = 0.0;
             }
         }
 
@@ -153,7 +148,7 @@ public class TNT {
                 double cy = Math.abs(this.vy);
                 if (cy < 0.1) {
                     double cy2 = 0.4 + cy * 0.2;
-                    this.vx = vy * cy2;
+                    this.vx = vx * cy2;
                     this.vz = vz * cy2;
                 }
             }
@@ -161,57 +156,26 @@ public class TNT {
 
         checkBlockCollision();
         float j = this.getVelocityMultiplier();
-        this.vy *= j;
         this.vx *= j;
+        this.vz *= j;
     }
 
     private Vector adjustMovementForCollisions(Vector movement) {
-        AxisAlignedBB boundingBox = new AxisAlignedBB(x, y, z, x + 0.98, y + 0.98, z + 0.98);
-        return movement.lengthSquared() == 0.0 ? movement : adjustMovementForCollisions(null, movement, boundingBox, Simulator19.WORLD);
-    }
-
-    public static Vector adjustMovementForCollisions(Entity entity, Vector movement, AxisAlignedBB entityBoundingBox, World world) {
-        Iterable<VoxelShape> voxelShapes = ((CraftWorld) world).getHandle().d(((CraftEntity) entity).getHandle(), entityBoundingBox);
-        List<VoxelShape> collisions = new java.util.ArrayList<>();
-        voxelShapes.forEach(collisions::add);
-
-        return adjustMovementForCollisions(movement, entityBoundingBox, collisions);
-    }
-
-    private static Vector adjustMovementForCollisions(Vector movement, AxisAlignedBB entityBoundingBox, List<VoxelShape> collisions) {
-        if (collisions.isEmpty()) {
+        if (movement.lengthSquared() == 0.0) {
             return movement;
+        }
+
+        double mY = new AxisMovementLimiter(x, y, z, Axis.Y, movement.getY()).run();
+
+        boolean bl = Math.abs(movement.getX()) < Math.abs(movement.getZ());
+        if (bl) {
+            double mZ = new AxisMovementLimiter(x, y + mY, z, Axis.Z, movement.getZ()).run();
+            double mX = new AxisMovementLimiter(x, y + mY, z + mZ, Axis.X, movement.getX()).run();
+            return new Vector(mX, mY, mZ);
         } else {
-            double d = movement.getX();
-            double e = movement.getY();
-            double f = movement.getZ();
-            if (e != 0.0) {
-                e = VoxelShapes.a(EnumDirection.EnumAxis.b, entityBoundingBox, collisions, e);
-                if (e != 0.0) {
-                    entityBoundingBox = entityBoundingBox.c(0.0, e, 0.0);
-                }
-            }
-
-            boolean bl = Math.abs(d) < Math.abs(f);
-            if (bl && f != 0.0) {
-                f = VoxelShapes.a(EnumDirection.EnumAxis.c, entityBoundingBox, collisions, f);
-                if (f != 0.0) {
-                    entityBoundingBox = entityBoundingBox.c(0.0, 0.0, f);
-                }
-            }
-
-            if (d != 0.0) {
-                d = VoxelShapes.a(EnumDirection.EnumAxis.a, entityBoundingBox, collisions, d);
-                if (!bl && d != 0.0) {
-                    entityBoundingBox = entityBoundingBox.c(d, 0.0, 0.0);
-                }
-            }
-
-            if (!bl && f != 0.0) {
-                f = VoxelShapes.a(EnumDirection.EnumAxis.c, entityBoundingBox, collisions, f);
-            }
-
-            return new Vector(d, e, f);
+            double mX = new AxisMovementLimiter(x, y + mY, z, Axis.X, movement.getX()).run();
+            double mZ = new AxisMovementLimiter(x + mX, y + mY, z, Axis.Z, movement.getZ()).run();
+            return new Vector(mX, mY, mZ);
         }
     }
 
@@ -219,7 +183,7 @@ public class TNT {
         return Math.abs(b - a) < 9.999999747378752E-6;
     }
 
-    private int floor(double value) {
+    public static int floor(double value) {
         int i = (int)value;
         return value < (double)i ? i - 1 : i;
     }
@@ -240,12 +204,6 @@ public class TNT {
 
     private void fall(double heightDifference, boolean onGround) {
         if (onGround) {
-            /*
-            if (this.fallDistance > 0.0F) {
-                // TODO: Is this needed?: state.getBlock().onLandedUpon(this.world, state, landedPosition, this, this.fallDistance);
-            }
-            */
-
             this.onLanding();
         } else if (heightDifference < 0.0) {
             this.fallDistance -= (float)heightDifference;