initial commit

1 files changed, 35 insertions, 0 deletions

diff --git a/src/main/java/wtf/kity/uncrackable/mixin/BlockBehaviourMixin.java b/src/main/java/wtf/kity/uncrackable/mixin/BlockBehaviourMixin.java
new file mode 100644
index 0000000..506b0c9
--- /dev/null
+++ b/src/main/java/wtf/kity/uncrackable/mixin/BlockBehaviourMixin.java
@@ -0,0 +1,35 @@
+package wtf.kity.uncrackable.mixin;
+
+import com.llamalad7.mixinextras.injector.wrapmethod.WrapMethod;
+import com.llamalad7.mixinextras.injector.wrapoperation.Operation;
+import net.minecraft.core.BlockPos;
+import net.minecraft.world.entity.item.FallingBlockEntity;
+import net.minecraft.world.level.BlockGetter;
+import net.minecraft.world.level.block.Blocks;
+import net.minecraft.world.level.block.state.BlockBehaviour;
+import net.minecraft.world.level.block.state.BlockState;
+import net.minecraft.world.level.material.PushReaction;
+import net.minecraft.world.phys.shapes.CollisionContext;
+import net.minecraft.world.phys.shapes.EntityCollisionContext;
+import net.minecraft.world.phys.shapes.Shapes;
+import net.minecraft.world.phys.shapes.VoxelShape;
+import org.spongepowered.asm.mixin.Mixin;
+
+@Mixin(BlockBehaviour.class)
+public class BlockBehaviourMixin {
+    /// If checking collision for a dragon egg, non-piston-destructible blocks should act
+    /// as full blocks so the egg lands on top of them.
+    @WrapMethod(method = "getCollisionShape")
+    VoxelShape getCollisionShape(BlockState state, BlockGetter level, BlockPos pos, CollisionContext context, Operation<VoxelShape> original) {
+        VoxelShape shape = original.call(state, level, pos, context);
+        if (!shape.isEmpty()
+                && context instanceof EntityCollisionContext entityContext
+                && entityContext.getEntity() instanceof FallingBlockEntity fallingBlock
+                && fallingBlock.getBlockState().is(Blocks.DRAGON_EGG)
+                && state.getPistonPushReaction() != PushReaction.DESTROY
+        ) {
+            return Shapes.block();
+        }
+        return shape;
+    }
+}