Implement Projectiles Bounce Off Slime Blocks tweak

README.md

@@ -222,6 +222,7 @@ All changes are toggleable via config files.
 * **Prevent Mob Eggs from Changing Spawners:** Prevents using Mob Spawner Eggs to change what a Spawner is spawning
 * **Prevent Observer Activating on Placement:** Controls if the observer activates itself on the first tick when it is placed
 * **Prevent Placing Buckets in Portals:** Prevents placing of liquid source blocks overriding portal blocks
+* **Projectiles Bounce Off Slime Blocks:** Lets projectiles like arrows bounce off slime blocks
 * **Pumpkin Placing:** Allows placing Pumpkins and Jack'O'Lanterns without a supporting block
 * **Rabbit Killer Spawning:** Configurable chance for rabbits to spawn as the killer bunny variant
 * **Rabbit Toast Spawning:** Configurable chance for rabbits to spawn as the Toast variant

src/main/java/mod/acgaming/universaltweaks/config/UTConfigTweaks.java

@@ -200,6 +200,10 @@ public static class BlocksCategory
         @Config.Comment("Allows placing End Crystals without requiring Obsidian or Bedrock below")
         public boolean utEndCrystalAnywherePlacing = false;
 
+        @Config.Name("Projectiles Bounce Off Slime Blocks")
+        @Config.Comment("Lets projectiles like arrows bounce off slime blocks")
+        public boolean utSlimeBlockProjectiles = false;
+
         @Config.RequiresMcRestart
         @Config.Name("Sugar Cane Size")
         @Config.Comment("Determines how tall sugar cane can grow")

src/main/java/mod/acgaming/universaltweaks/tweaks/blocks/slimeblock/UTSlimeBlockProjectiles.java

@@ -0,0 +1,45 @@
+package mod.acgaming.universaltweaks.tweaks.blocks.slimeblock;
+
+import net.minecraft.block.Block;
+import net.minecraft.block.BlockSlime;
+import net.minecraft.init.SoundEvents;
+import net.minecraft.util.EnumFacing;
+import net.minecraft.util.SoundCategory;
+import net.minecraft.util.math.BlockPos;
+import net.minecraft.util.math.RayTraceResult;
+import net.minecraft.world.World;
+import net.minecraftforge.event.entity.ProjectileImpactEvent;
+import net.minecraftforge.fml.common.Mod;
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent;
+
+import mod.acgaming.universaltweaks.UniversalTweaks;
+import mod.acgaming.universaltweaks.config.UTConfigGeneral;
+import mod.acgaming.universaltweaks.config.UTConfigTweaks;
+
+// Courtesy of CAS-ual-TY
+@Mod.EventBusSubscriber(modid = UniversalTweaks.MODID)
+public class UTSlimeBlockProjectiles
+{
+    @SubscribeEvent
+    public static void utSlimeBlockProjectiles(ProjectileImpactEvent event)
+    {
+        if (!UTConfigTweaks.BLOCKS.utSlimeBlockProjectiles) return;
+        if (UTConfigGeneral.DEBUG.utDebugToggle) UniversalTweaks.LOGGER.debug("UTSlimeBlockProjectiles ::: Projectile impact event");
+        RayTraceResult rayTraceResult = event.getRayTraceResult();
+        if (rayTraceResult.typeOfHit == RayTraceResult.Type.BLOCK)
+        {
+            BlockPos pos = rayTraceResult.getBlockPos();
+            World world = event.getEntity().world;
+            Block block = world.getBlockState(pos).getBlock();
+            if (block instanceof BlockSlime)
+            {
+                EnumFacing direction = rayTraceResult.sideHit;
+                if (direction.getXOffset() != 0) event.getEntity().motionX *= -0.1D;
+                else if (direction.getYOffset() != 0) event.getEntity().motionY *= -0.1D;
+                else if (direction.getZOffset() != 0) event.getEntity().motionZ *= -0.1D;
+                world.playSound(null, pos, SoundEvents.BLOCK_SLIME_HIT, SoundCategory.BLOCKS, 1.0F, (world.rand.nextFloat() - world.rand.nextFloat()) * 0.2F + 1.0F);
+                event.setCanceled(true);
+            }
+        }
+    }
+}