improve bullet physics

common/src/main/java/common/block/Block.java

@@ -1008,4 +1008,8 @@ public class Block {
 
 	public void onDestroyedByFire(World world, BlockPos pos, State state) {
 	}
+	
+	public boolean onShot(World world, BlockPos pos, State state, Entity projectile) {
+		return this.material.blocksMovement();
+	}
 }

common/src/main/java/common/block/artificial/BlockGlass.java

@@ -2,6 +2,7 @@ package common.block.artificial;
 
 import common.block.Block;
 import common.block.Material;
+import common.entity.Entity;
 import common.item.CheatTab;
 import common.model.BlockLayer;
 import common.rng.Random;
@@ -9,6 +10,7 @@ import common.util.BlockPos;
 import common.util.Facing;
 import common.world.IWorldAccess;
 import common.world.State;
+import common.world.World;
 
 public class BlockGlass extends Block {
 	public BlockGlass() {
@@ -41,4 +43,9 @@ public class BlockGlass extends Block {
 		Block block = state.getBlock();
 		return world.getState(pos.offset(side.getOpposite())) != state || (block != this && super.shouldSideBeRendered(world, pos, side));
 	}
+	
+	public boolean onShot(World world, BlockPos pos, State state, Entity projectile) {
+		world.destroyBlock(pos, true);
+		return false;
+	}
 }

common/src/main/java/common/block/artificial/BlockPane.java

@@ -209,6 +209,12 @@ public class BlockPane extends Block
     public boolean isMagnetic() {
     	return this.material == Material.SOLID;
     }
+	
+	public boolean onShot(World world, BlockPos pos, State state, Entity projectile) {
+		if(this.material != Material.SOLID)
+			world.destroyBlock(pos, true);
+		return this.material == Material.SOLID;
+	}
     
     protected String getPaneBase(State state) {
     	return "glass";

common/src/main/java/common/block/artificial/BlockSkull.java

@@ -2,6 +2,7 @@ package common.block.artificial;
 
 import common.block.BlockDirectional;
 import common.block.Material;
+import common.entity.Entity;
 import common.entity.types.EntityLiving;
 import common.init.Items;
 import common.item.Item;
@@ -66,4 +67,9 @@ public class BlockSkull extends BlockDirectional {
 	public boolean isXrayVisible() {
 		return true;
 	}
+	
+	public boolean onShot(World world, BlockPos pos, State state, Entity projectile) {
+		world.destroyBlock(pos, true);
+		return true;
+	}
 }

common/src/main/java/common/block/natural/BlockGlowstone.java

@@ -2,12 +2,15 @@ package common.block.natural;
 
 import common.block.Block;
 import common.block.Material;
+import common.entity.Entity;
 import common.init.Items;
 import common.item.CheatTab;
 import common.item.Item;
 import common.rng.Random;
+import common.util.BlockPos;
 import common.util.ExtMath;
 import common.world.State;
+import common.world.World;
 
 public class BlockGlowstone extends Block
 {
@@ -40,6 +43,11 @@ public class BlockGlowstone extends Block
     {
         return Items.glowstone_dust;
     }
+	
+	public boolean onShot(World world, BlockPos pos, State state, Entity projectile) {
+		world.destroyBlock(pos, true);
+		return false;
+	}
 
 //    /**
 //     * Get the MapColor for this Block and the given BlockState

common/src/main/java/common/entity/projectile/EntityBullet.java

@@ -16,6 +16,7 @@ import common.util.ExtMath;
 import common.util.HitPosition;
 import common.util.Vec3;
 import common.vars.Vars;
+import common.world.State;
 import common.world.World;
 
 public class EntityBullet extends Entity implements IProjectile, IObjectData
@@ -286,9 +287,11 @@ public class EntityBullet extends Entity implements IProjectile, IObjectData
             }
             else
             {
-                this.playSound(SoundEvent.METALHIT, 0.5F);
+            	State state = movingobjectposition.block != null ? this.worldObj.getState(movingobjectposition.block) : null;
-                
+            	if(state == null || state.getBlock().onShot(this.worldObj, movingobjectposition.block, state, this)) {
-            	this.setDead();
+	                this.playSound(SoundEvent.METALHIT, 0.5F);
+	            	this.setDead();
+            	}
             }
         }
 

common/src/main/java/common/init/ItemRegistry.java

@@ -519,7 +519,7 @@ public abstract class ItemRegistry {
 		registerItem("poisonous_potato", (new ItemFood(2, false)).setPotionEffect(Potion.POISON, 5, 0, 0.6F).setDisplay("Giftige Kartoffel").setMaxStackSize(128));
 		registerItem("golden_carrot", (new ItemFood(6, false)).setDisplay("Goldene Karotte")
 				.setPotionEffect(PotionHelper.goldenCarrotEffect).setTab(CheatTab.MISC));
-		registerItem((new ItemSmallBlock(Blocks.skull)).setDisplay("Schädel"));
+		registerItem((new ItemSmallBlock(Blocks.skull)).setDisplay("Schädel").setTab(CheatTab.DECORATION));
 		registerItem("carrot_on_a_stick", (new ItemCarrotOnAStick()).setDisplay("Karottenrute"));
 		registerItem("charge_crystal", (new ItemEffect()).setDisplay("Energiekristall").setTab(CheatTab.MISC).setColor(TextColor.DMAGENTA));
 		registerItem("pumpkin_pie", (new ItemFood(8, false)).setDisplay("Kürbiskuchen").setTab(CheatTab.MISC));