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Add ray tracing and bounding box API

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By: blablubbabc <lukas@wirsindwir.de>
This commit is contained in:
CraftBukkit/Spigot
2018-10-26 19:59:42 +11:00
parent 4614a811c9
commit 369edcded9
6 changed files with 299 additions and 7 deletions
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48
paper-server/src/main/java/org/bukkit/craftbukkit/block/CraftBlock.java
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@@ -8,7 +8,9 @@ import java.util.List;
import net.minecraft.server.*;
import org.apache.commons.lang.Validate;
import org.bukkit.Chunk;
import org.bukkit.FluidCollisionMode;
import org.bukkit.Location;
import org.bukkit.Material;
import org.bukkit.World;
@@ -18,15 +20,18 @@ import org.bukkit.block.BlockFace;
import org.bukkit.block.BlockState;
import org.bukkit.block.PistonMoveReaction;
import org.bukkit.block.data.BlockData;
import org.bukkit.craftbukkit.CraftChunk;
import org.bukkit.craftbukkit.CraftFluidCollisionMode;
import org.bukkit.craftbukkit.CraftWorld;
import org.bukkit.craftbukkit.block.data.CraftBlockData;
import org.bukkit.craftbukkit.inventory.CraftItemStack;
import org.bukkit.craftbukkit.util.CraftMagicNumbers;
import org.bukkit.craftbukkit.util.CraftRayTraceResult;
import org.bukkit.inventory.ItemStack;
import org.bukkit.metadata.MetadataValue;
import org.bukkit.plugin.Plugin;
import org.bukkit.util.BlockVector;
import org.bukkit.util.RayTraceResult;
import org.bukkit.util.Vector;
public class CraftBlock implements Block {
private final net.minecraft.server.GeneratorAccess world;
@@ -602,4 +607,45 @@ public class CraftBlock implements Block {
public boolean isPassable() {
return this.getData0().getCollisionShape(world, position).isEmpty();
}
@Override
public RayTraceResult rayTrace(Location start, Vector direction, double maxDistance, FluidCollisionMode fluidCollisionMode) {
Validate.notNull(start, "Start location is null!");
Validate.isTrue(this.getWorld().equals(start.getWorld()), "Start location is from different world!");
start.checkFinite();
Validate.notNull(direction, "Direction is null!");
direction.checkFinite();
Validate.isTrue(direction.lengthSquared() > 0, "Direction's magnitude is 0!");
Validate.notNull(fluidCollisionMode, "Fluid collision mode is null!");
if (maxDistance < 0.0D) {
return null;
}
Vector dir = direction.clone().normalize().multiply(maxDistance);
Vec3D startPos = new Vec3D(start.getX(), start.getY(), start.getZ());
Vec3D endPos = new Vec3D(start.getX() + dir.getX(), start.getY() + dir.getY(), start.getZ() + dir.getZ());
// Similar to to nms.World#rayTrace:
IBlockData blockData = world.getType(position);
Fluid fluid = world.b(position); // PAIL getFluid
boolean collidableBlock = blockData.getBlock().d(blockData); // PAIL isCollidable
boolean collideWithFluid = CraftFluidCollisionMode.toNMS(fluidCollisionMode).d.test(fluid); // PAIL predicate
if (!collidableBlock && !collideWithFluid) {
return null;
}
MovingObjectPosition nmsHitResult = null;
if (collidableBlock) {
nmsHitResult = net.minecraft.server.Block.a(blockData, world.getMinecraftWorld(), position, startPos, endPos); // PAIL rayTrace
}
if (nmsHitResult == null && collideWithFluid) {
nmsHitResult = VoxelShapes.a(0.0D, 0.0D, 0.0D, 1.0D, (double) fluid.f(), 1.0D).a(startPos, endPos, position); // PAIL create, getHeight, rayTrace
}
return CraftRayTraceResult.fromNMS(this.getWorld(), nmsHitResult);
}
}