1 files changed, 62 insertions, 0 deletions
diff --git a/source/blocks/BlockDirt.h b/source/blocks/BlockDirt.h
new file mode 100644
index 000000000..49450b16d
--- /dev/null
+++ b/source/blocks/BlockDirt.h
@@ -0,0 +1,62 @@
+#pragma once
+#include "Block.h"
+#include "../MersenneTwister.h"
+#include "../cWorld.h"
+
+class cBlockDirtHandler : public cBlockHandler
+{
+public:
+	cBlockDirtHandler(BLOCKTYPE a_BlockID);
+
+	
+	virtual bool NeedsRandomTicks()
+	{
+		return m_BlockID == E_BLOCK_GRASS;
+	}
+
+	virtual int GetDropID()
+	{
+		return E_BLOCK_DIRT;
+	}
+	
+	
+	void OnUpdate(cWorld *a_World, int a_X, int a_Y, int a_Z)
+	{
+		if(m_BlockID == E_BLOCK_GRASS)
+		{
+			//Grass becomes dirt if there is something on top of them
+			BLOCKTYPE Above = a_World->GetBlock(a_X, a_Y + 1, a_Z);
+			if(!g_BlockTransparent[Above] && !g_BlockOneHitDig[Above])
+			{
+				a_World->FastSetBlock(a_X, a_Y, a_Z, E_BLOCK_DIRT, 0);
+			}
+
+			
+			MTRand rand;
+			for (int i = 0; i < 2; i++)  // Pick two blocks to grow to
+			{
+				int OfsX = rand.randInt(2) - 1;  // [-1 .. 1]
+				int OfsY = rand.randInt(4) - 3;  // [-3 .. 1]
+				int OfsZ = rand.randInt(2) - 1;  // [-1 .. 1]
+		
+				BLOCKTYPE  DestBlock;
+				NIBBLETYPE DestMeta;
+				a_World->GetBlockTypeMeta(a_X + OfsX, a_Y + OfsY, a_Z + OfsZ, DestBlock, DestMeta);
+				if(DestBlock != E_BLOCK_DIRT)
+				{
+					continue;
+				}
+
+				BLOCKTYPE AboveDest;
+				NIBBLETYPE AboveMeta;
+				a_World->GetBlockTypeMeta(a_X + OfsX, a_Y + OfsY + 1, a_Z + OfsZ, AboveDest, AboveMeta);
+				if (g_BlockOneHitDig[AboveDest] || g_BlockTransparent[AboveDest])
+				{
+					a_World->FastSetBlock(a_X + OfsX, a_Y + OfsY, a_Z + OfsZ, E_BLOCK_GRASS, 0);
+				}
+			}  // for i - repeat twice
+
+		}
+	}
+	
+};
+\ No newline at end of file