PaperMC/Spigot-Server-Patches/0359-Add-ray-tracing-methods-to-LivingEntity.patch
BillyGalbreath 997190c3e0 Add ray tracing methods to LivingEntity (#1410)
This method will return the Block a player is looking at while taking into consideration the AABB of each block in the path.

For example, you can look through the 1/4 space of air in a Stair block and get the block behind it instead of the Stair block you are looking past.
2018-09-03 19:59:54 -04:00

76 lines
4 KiB
Diff

From 53c450f0d30d97e0ddee7a1dfd43912b7a310a72 Mon Sep 17 00:00:00 2001
From: BillyGalbreath <Blake.Galbreath@GMail.com>
Date: Mon, 3 Sep 2018 18:20:03 -0500
Subject: [PATCH] Add ray tracing methods to LivingEntity
diff --git a/src/main/java/net/minecraft/server/EntityLiving.java b/src/main/java/net/minecraft/server/EntityLiving.java
index 904b67c26..890a3a02b 100644
--- a/src/main/java/net/minecraft/server/EntityLiving.java
+++ b/src/main/java/net/minecraft/server/EntityLiving.java
@@ -2810,6 +2810,22 @@ public abstract class EntityLiving extends Entity {
}
// Paper start
+ public MovingObjectPosition getRayTrace(int maxDistance) {
+ return getRayTrace(maxDistance, FluidCollisionOption.NEVER);
+ }
+
+ public MovingObjectPosition getRayTrace(int maxDistance, FluidCollisionOption fluidCollisionOption) {
+ if (maxDistance < 1 || maxDistance > 120) {
+ throw new IllegalArgumentException("maxDistance must be between 1-120");
+ }
+
+ Vec3D start = new Vec3D(locX, locY + getHeadHeight(), locZ);
+ org.bukkit.util.Vector dir = getBukkitEntity().getLocation().getDirection().multiply(maxDistance);
+ Vec3D end = new Vec3D(start.x + dir.getX(), start.y + dir.getY(), start.z + dir.getZ());
+
+ return world.rayTrace(start, end, fluidCollisionOption);
+ }
+
public int shieldBlockingDelay = world.paperConfig.shieldBlockingDelay;
public int getShieldBlockingDelay() {
diff --git a/src/main/java/net/minecraft/server/MovingObjectPosition.java b/src/main/java/net/minecraft/server/MovingObjectPosition.java
index 6d5dbe89a..a31f9f607 100644
--- a/src/main/java/net/minecraft/server/MovingObjectPosition.java
+++ b/src/main/java/net/minecraft/server/MovingObjectPosition.java
@@ -28,6 +28,7 @@ public class MovingObjectPosition {
this.pos = vec3d;
}
+ public BlockPosition getBlockPosition() { return a(); } // Paper - OBFHELPER
public BlockPosition a() {
return this.e;
}
diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
index 0860f2334..028495700 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftLivingEntity.java
@@ -169,6 +169,23 @@ public class CraftLivingEntity extends CraftEntity implements LivingEntity {
return blocks.get(0);
}
+ // Paper start
+ public Block getTargetBlock(int maxDistance, com.destroystokyo.paper.block.TargetBlockInfo.FluidMode fluidMode) {
+ net.minecraft.server.MovingObjectPosition rayTrace = getHandle().getRayTrace(maxDistance, net.minecraft.server.MCUtil.getNMSFluidCollisionOption(fluidMode));
+ return rayTrace == null ? null : org.bukkit.craftbukkit.block.CraftBlock.at(getHandle().world, rayTrace.getBlockPosition());
+ }
+
+ public org.bukkit.block.BlockFace getTargetBlockFace(int maxDistance, com.destroystokyo.paper.block.TargetBlockInfo.FluidMode fluidMode) {
+ net.minecraft.server.MovingObjectPosition rayTrace = getHandle().getRayTrace(maxDistance, net.minecraft.server.MCUtil.getNMSFluidCollisionOption(fluidMode));
+ return rayTrace == null ? null : net.minecraft.server.MCUtil.toBukkitBlockFace(rayTrace.direction);
+ }
+
+ public com.destroystokyo.paper.block.TargetBlockInfo getTargetBlockInfo(int maxDistance, com.destroystokyo.paper.block.TargetBlockInfo.FluidMode fluidMode) {
+ net.minecraft.server.MovingObjectPosition rayTrace = getHandle().getRayTrace(maxDistance, net.minecraft.server.MCUtil.getNMSFluidCollisionOption(fluidMode));
+ return rayTrace == null ? null : new com.destroystokyo.paper.block.TargetBlockInfo(org.bukkit.craftbukkit.block.CraftBlock.at(getHandle().world, rayTrace.getBlockPosition()), net.minecraft.server.MCUtil.toBukkitBlockFace(rayTrace.direction));
+ }
+ // Paper end
+
public List<Block> getLastTwoTargetBlocks(Set<Material> transparent, int maxDistance) {
return getLineOfSight(transparent, maxDistance, 2);
}
--
2.18.0