Simple jesus

Author: bladekt

common/src/main/java/com/lambda/mixin/world/BlockCollisionSpliteratorMixin.java

@@ -0,0 +1,24 @@
+package com.lambda.mixin.world;
+
+import com.google.common.collect.AbstractIterator;
+import com.lambda.event.EventFlow;
+import com.lambda.event.events.WorldEvent;
+import net.minecraft.block.BlockState;
+import net.minecraft.block.ShapeContext;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.shape.VoxelShape;
+import net.minecraft.world.BlockCollisionSpliterator;
+import net.minecraft.world.BlockView;
+import org.spongepowered.asm.mixin.Mixin;
+import org.spongepowered.asm.mixin.injection.At;
+import org.spongepowered.asm.mixin.injection.Redirect;
+
+@Mixin(BlockCollisionSpliterator.class)
+public abstract class BlockCollisionSpliteratorMixin <T extends AbstractIterator<T>> {
+    @Redirect(method = "computeNext", at = @At(value = "INVOKE", target = "Lnet/minecraft/block/BlockState;getCollisionShape(Lnet/minecraft/world/BlockView;Lnet/minecraft/util/math/BlockPos;Lnet/minecraft/block/ShapeContext;)Lnet/minecraft/util/shape/VoxelShape;"))
+    private VoxelShape collisionShapeRedirect(BlockState instance, BlockView blockView, BlockPos blockPos, ShapeContext shapeContext) {
+        VoxelShape collisionShape = instance.getCollisionShape(blockView, blockPos, shapeContext);
+        WorldEvent.Collision event = EventFlow.post(new WorldEvent.Collision(blockPos, instance, collisionShape));
+        return event.getShape();
+    }
+}

common/src/main/kotlin/com/lambda/event/events/WorldEvent.kt

@@ -7,6 +7,7 @@ import net.minecraft.block.BlockState
 import net.minecraft.client.world.ClientWorld
 import net.minecraft.entity.Entity
 import net.minecraft.util.math.BlockPos
+import net.minecraft.util.shape.VoxelShape
 import net.minecraft.world.chunk.WorldChunk
 
 abstract class WorldEvent : Event {
@@ -34,4 +35,6 @@ abstract class WorldEvent : Event {
     class EntitySpawn(
         val entity: Entity
     ) : WorldEvent(), ICancellable by Cancellable()
+
+    class Collision(val pos: BlockPos, val state: BlockState, var shape: VoxelShape) : WorldEvent()
 }

common/src/main/kotlin/com/lambda/module/modules/movement/Jesus.kt

@@ -0,0 +1,25 @@
+package com.lambda.module.modules.movement
+
+import com.lambda.event.events.WorldEvent
+import com.lambda.event.listener.SafeListener.Companion.listener
+import com.lambda.module.Module
+import com.lambda.module.tag.ModuleTag
+import net.minecraft.block.Blocks
+import net.minecraft.util.shape.VoxelShapes
+
+object Jesus : Module(
+    name = "Jesus",
+    description = "Allows to walk on water",
+    defaultTags = setOf(ModuleTag.MOVEMENT)
+) {
+    private val waterState by lazy { Blocks.WATER.defaultState }
+    private val fullShape = VoxelShapes.fullCube()
+
+    init {
+        listener<WorldEvent.Collision> { event ->
+            if (event.state == waterState) {
+                event.shape = fullShape
+            }
+        }
+    }
+}

common/src/main/resources/lambda.mixins.common.json

@@ -33,6 +33,7 @@
     "render.ScreenHandlerMixin",
     "render.VertexBufferMixin",
     "render.WorldRendererMixin",
+    "world.BlockCollisionSpliteratorMixin",
     "world.ClientChunkManagerMixin",
     "world.ClientWorldMixin"
   ],