From be21968805c5c34b4e7b4c6882fa00ead26d00dc Mon Sep 17 00:00:00 2001
From: libraryaddict <libraryaddict115@yahoo.co.nz>
Date: Sun, 12 Apr 2015 23:20:52 +1200
Subject: [PATCH] UtilBlock: Added a method that may or may not tell you the
 blocks destroyed in an explosion

---
 .../mineplex/core/common/util/UtilBlock.java  | 73 +++++++++++++++++++
 1 file changed, 73 insertions(+)

diff --git a/Plugins/Mineplex.Core.Common/src/mineplex/core/common/util/UtilBlock.java b/Plugins/Mineplex.Core.Common/src/mineplex/core/common/util/UtilBlock.java
index a1d040f18..fec6f0710 100644
--- a/Plugins/Mineplex.Core.Common/src/mineplex/core/common/util/UtilBlock.java
+++ b/Plugins/Mineplex.Core.Common/src/mineplex/core/common/util/UtilBlock.java
@@ -4,11 +4,16 @@ import java.util.ArrayList;
 import java.util.HashMap;
 import java.util.HashSet;
 
+import net.minecraft.server.v1_7_R4.Blocks;
+import net.minecraft.server.v1_7_R4.MathHelper;
+import net.minecraft.server.v1_7_R4.WorldServer;
+
 import org.bukkit.Location;
 import org.bukkit.Material;
 import org.bukkit.World;
 import org.bukkit.block.Block;
 import org.bukkit.block.BlockFace;
+import org.bukkit.craftbukkit.v1_7_R4.CraftWorld;
 import org.bukkit.inventory.ItemStack;
 
 public class UtilBlock
@@ -377,6 +382,74 @@ public class UtilBlock
 
 		return block.getRelative(BlockFace.UP); 
 	}
+
+	/**
+	 * 
+	 * @param location of explosion
+	 * @param strength of explosion
+	 * @param damageBlocksEqually - Treat all blocks as durability of dirt
+	 * @param ensureDestruction - Ensure that the closest blocks are destroyed at least
+	 * @return
+	 */
+	public static ArrayList<Block> getExplosionBlocks(Location location, float strength, boolean damageBlocksEqually)
+	{
+		ArrayList<Block> toExplode = new ArrayList<Block>();
+		WorldServer world = ((CraftWorld) location.getWorld()).getHandle();
+
+		for (int i = 0; i < 16; i++)
+		{
+			for (int j = 0; j < 16; j++)
+			{
+				for (int k = 0; k < 16; k++)
+				{
+					if ((i == 0) || (i == 16 - 1) || (j == 0) || (j == 16 - 1) || (k == 0) || (k == 16 - 1))
+					{
+						double d3 = i / (16 - 1.0F) * 2.0F - 1.0F;
+						double d4 = j / (16 - 1.0F) * 2.0F - 1.0F;
+						double d5 = k / (16 - 1.0F) * 2.0F - 1.0F;
+						double d6 = Math.sqrt(d3 * d3 + d4 * d4 + d5 * d5);
+
+						d3 /= d6;
+						d4 /= d6;
+						d5 /= d6;
+						float f1 = strength * (0.7F + UtilMath.random.nextFloat() * 0.6F);
+
+						double d0 = location.getX();
+						double d1 = location.getY();
+						double d2 = location.getZ();
+
+						for (float f2 = 0.3F; f1 > 0.0F; f1 -= f2 * 0.75F)
+						{
+							int l = MathHelper.floor(d0);
+							int i1 = MathHelper.floor(d1);
+							int j1 = MathHelper.floor(d2);
+							Block block = location.getWorld().getBlockAt(l, i1, j1);
+
+							if (block.getType() != Material.AIR)
+							{
+								float f3 = (damageBlocksEqually ? Blocks.DIRT : world.getType(block.getX(), block.getY(),
+										block.getZ())).a((net.minecraft.server.v1_7_R4.Entity) null);
+
+								f1 -= (f3 + 0.3F) * f2;
+							}
+
+							if ((f1 > 0.0F) && (i1 < 256) && (i1 >= 0))
+							{
+								toExplode.add(block);
+							}
+
+							d0 += d3 * f2;
+							d1 += d4 * f2;
+							d2 += d5 * f2;
+						}
+					}
+				}
+			}
+		}
+		
+		return toExplode;
+	}
+
 	public static ArrayList<Block> getSurrounding(Block block, boolean diagonals) 
 	{
 		ArrayList<Block> blocks = new ArrayList<Block>();