Add basic TNT

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

BauSystem_15/src/de/steamwar/bausystem/features/simulator/Simulator15.java

@@ -0,0 +1,23 @@
+/*
+ * 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;
+
+public class Simulator15 implements Simulator {
+}

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

@@ -0,0 +1,37 @@
+/*
+ * 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.Bukkit;
+import org.bukkit.World;
+
+public class Simulator19 implements Simulator {
+
+    public static final World WORLD = Bukkit.getWorlds().get(0);
+
+    @Override
+    public void run() {
+        TNT tnt = new TNT(0, 120, 0);
+        do {
+            System.out.println(tnt);
+        } while (!tnt.tick());
+        System.out.println(tnt);
+    }
+}

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

@@ -0,0 +1,327 @@
+/*
+ * 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 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.Material;
+import org.bukkit.World;
+import org.bukkit.block.Block;
+import org.bukkit.block.data.BlockData;
+import org.bukkit.block.data.type.Bed;
+import org.bukkit.block.data.type.Fence;
+import org.bukkit.block.data.type.Gate;
+import org.bukkit.block.data.type.Wall;
+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
+@Setter
+public class TNT {
+
+    private static final Random R = new Random();
+
+    // Bottom left corner
+    private double x;
+    private double y;
+    private double z;
+
+    private double vx;
+    private double vy;
+    private double vz;
+
+    private int fuse;
+
+    private boolean onGround = false;
+    private float fallDistance = 0;
+
+    private boolean horizontalCollision = false;
+    private boolean verticalCollision = false;
+    private Vector movementMultiplier = new Vector(0, 0, 0);
+
+    public TNT(double x, double y, double z) {
+        this.x = x;
+        this.y = y;
+        this.z = z;
+
+        double seed = R.nextDouble() * 6.2831854820251465;
+        this.vx = -Math.sin(seed) * 0.02;
+        this.vy = 0.20000000298023224;
+        this.vz = -Math.cos(seed) * 0.02;
+
+        this.fuse = 80;
+    }
+
+    public boolean tick() {
+        this.vy -= 0.04;
+
+        move(new Vector(this.vx, this.vy, this.vz));
+
+        this.vx *= 0.98;
+        this.vy *= 0.98;
+        this.vz *= 0.98;
+
+        this.fuse--;
+        if (this.fuse <= 0) {
+            // TODO: Add explosion
+            return true;
+        }
+        return false;
+    }
+
+    private void move(Vector movement) {
+        if (movement.lengthSquared() > 1.0E-7) {
+            movement.multiply(movementMultiplier);
+            movementMultiplier = new Vector(0, 0, 0);
+            vx = 0;
+            vy = 0;
+            vz = 0;
+        }
+
+        Vector vec3d = adjustMovementForCollisions(movement);
+        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));
+                if (movingObjectPosition.c() != MovingObjectPosition.EnumMovingObjectType.a) {
+                    onLanding();
+                }
+            }
+
+            this.x += movement.getX();
+            this.y += movement.getY();
+            this.z += movement.getZ();
+        }
+
+        boolean bl = !approximatelyEquals(movement.getX(), vec3d.getX());
+        boolean bl2 = !approximatelyEquals(movement.getZ(), vec3d.getZ());
+        this.horizontalCollision = bl || bl2;
+        this.verticalCollision = movement.getY() != vec3d.getY();
+
+        this.onGround = this.verticalCollision && movement.getY() < 0.0D;
+        Vector blockPos = getLandingPos();
+        Block block = Simulator19.WORLD.getBlockAt(blockPos.getBlockX(), blockPos.getBlockY(), blockPos.getBlockZ());
+        fall(vec3d.getX(), onGround, block, blockPos);
+
+        if (horizontalCollision) {
+            this.vx = bl ? 0.0 : this.vx;
+            this.vz = bl2 ? 0.0 : this.vz;
+        }
+
+        if (movement.getY() != vec3d.getY()) {
+            if (block.getType() == Material.SLIME_BLOCK) {
+                if (this.vy < 0.0) {
+                    this.vy = -this.vy * 0.8;
+                }
+            }
+            if (block.getBlockData() instanceof Bed) {
+                if (this.vy < 0.0) {
+                    this.vy = -this.vy * 0.6600000262260437 * 0.8;
+                }
+            }
+        }
+
+        if (onGround) {
+            if (block.getType() == Material.SLIME_BLOCK) {
+                double cy = Math.abs(this.vy);
+                if (cy < 0.1) {
+                    double cy2 = 0.4 + cy * 0.2;
+                    this.vx = vy * cy2;
+                    this.vz = vz * cy2;
+                }
+            }
+        }
+
+        checkBlockCollision();
+        float j = this.getVelocityMultiplier();
+        this.vy *= j;
+        this.vx *= 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()) {
+            return movement;
+        } 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);
+        }
+    }
+
+    private boolean approximatelyEquals(double a, double b) {
+        return Math.abs(b - a) < 9.999999747378752E-6;
+    }
+
+    private int floor(double value) {
+        int i = (int)value;
+        return value < (double)i ? i - 1 : i;
+    }
+
+    private Vector getLandingPos() {
+        int x = floor(this.x);
+        int y = floor(this.y - 0.2F);
+        int z = floor(this.z);
+
+        if (Simulator19.WORLD.getBlockAt(x, y, z).isEmpty()) {
+            Block block = Simulator19.WORLD.getBlockAt(x, y - 1, z);
+            BlockData blockData = block.getBlockData();
+            if (blockData instanceof Fence || blockData instanceof Wall || blockData instanceof Gate) {
+                return new Vector(x, y - 1, z);
+            }
+        }
+        return new Vector(x, y, z);
+    }
+
+    private void fall(double heightDifference, boolean onGround, Block state, Vector landedPosition) {
+        if (onGround) {
+            if (this.fallDistance > 0.0F) {
+                state.getBlock().onLandedUpon(this.world, state, landedPosition, this, this.fallDistance);
+            }
+
+            this.onLanding();
+        } else if (heightDifference < 0.0) {
+            this.fallDistance -= (float)heightDifference;
+        }
+    }
+
+    private void checkBlockCollision() {
+        int x1 = floor(x + 1.0E-7);
+        int y1 = floor(y + 1.0E-7);
+        int z1 = floor(z + 1.0E-7);
+        int x2 = floor(x + 0.98 - 1.0E-7);
+        int y2 = floor(y + 0.98 - 1.0E-7);
+        int z2 = floor(z + 0.98 - 1.0E-7);
+
+        for (int x = x1; x <= x2; x++) {
+            for (int y = y1; y <= y2; y++) {
+                for (int z = z1; z <= z2; z++) {
+                    Block block = Simulator19.WORLD.getBlockAt(x, y, z);
+
+                    if (block.getType() == Material.POWDER_SNOW) {
+                        slowMovement(new Vector(0.8999999761581421, 1.5, 0.8999999761581421));
+                    } else if (block.getType() == Material.HONEY_BLOCK) {
+                        if (isSliding(new Vector(x, y, z))) {
+                            updateSlidingVelocity();
+                        }
+                    } else if (block.getType() == Material.COBWEB) {
+                        slowMovement(new Vector(0.25, 0.05000000074505806, 0.25));
+                    } else if (block.getType() == Material.BUBBLE_COLUMN) {
+                        // TODO: Bubble column
+                    }
+                }
+            }
+        }
+    }
+
+    private void slowMovement(Vector movementMultiplier) {
+        onLanding();
+        this.movementMultiplier = movementMultiplier;
+    }
+
+    private void updateSlidingVelocity() {
+        if (vy <  -0.13) {
+            double d = -0.05 / vy;
+            vx *= d;
+            vz *= d;
+        }
+        vy = -0.05;
+        onLanding();
+    }
+
+    private boolean isSliding(Vector pos) {
+        if (onGround) return false;
+        if (y > pos.getY() + 0.9375 - 1.0E-7) return false;
+        if (vy >= -0.08) return false;
+        double d = Math.abs(pos.getX() + 0.5 - x);
+        double e = Math.abs(pos.getZ() + 0.5 - z);
+        double f = 0.4375 + 0.98 / 2.0;
+        return d + 1.0E-7 > f || e + 1.0E-7 > f;
+    }
+
+    private void onLanding() {
+        this.fallDistance = 0.0F;
+    }
+
+    @Override
+    public String toString() {
+        return "TNT{" +
+                "x=" + x +
+                ", y=" + y +
+                ", z=" + z +
+                ", vx=" + vx +
+                ", vy=" + vy +
+                ", vz=" + vz +
+                ", fuse=" + fuse +
+                '}';
+    }
+}

BauSystem_Main/src/de/steamwar/bausystem/features/simulator/Simulator.java

@@ -0,0 +1,30 @@
+/*
+ * 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 de.steamwar.bausystem.BauSystem;
+import de.steamwar.core.VersionDependent;
+
+public interface Simulator {
+    Simulator impl = VersionDependent.getVersionImpl(BauSystem.getInstance());
+
+    default void run() {
+    }
+}

BauSystem_Main/src/de/steamwar/bausystem/features/simulator/TestCommand.java

@@ -0,0 +1,37 @@
+/*
+ * 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 de.steamwar.command.SWCommand;
+import de.steamwar.linkage.Linked;
+import org.bukkit.entity.Player;
+
+@Linked
+public class TestCommand extends SWCommand {
+
+    public TestCommand() {
+        super("test");
+    }
+
+    @Register
+    public void genericCommand(Player player) {
+        Simulator.impl.run();
+    }
+}