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authorworktycho <work.tycho@gmail.com>2013-12-09 18:51:12 +0100
committerworktycho <work.tycho@gmail.com>2013-12-09 18:51:12 +0100
commit843605d59ebc128be0a578dc6f45ef8c05da6e79 (patch)
tree3ffebc6ba27baf7a9e1d4bc51501ffeea9b14226 /src/Blocks/BlockDirt.h
parentmerged makefile changes (diff)
parentFix Undefined behavior at Bindings/LuaWindow line 32 (diff)
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Diffstat (limited to 'src/Blocks/BlockDirt.h')
-rw-r--r--src/Blocks/BlockDirt.h97
1 files changed, 97 insertions, 0 deletions
diff --git a/src/Blocks/BlockDirt.h b/src/Blocks/BlockDirt.h
new file mode 100644
index 000000000..a83dab1fd
--- /dev/null
+++ b/src/Blocks/BlockDirt.h
@@ -0,0 +1,97 @@
+
+#pragma once
+
+#include "BlockHandler.h"
+#include "../MersenneTwister.h"
+#include "../World.h"
+
+
+
+
+
+/// Handler used for both dirt and grass
+class cBlockDirtHandler :
+ public cBlockHandler
+{
+public:
+ cBlockDirtHandler(BLOCKTYPE a_BlockType)
+ : cBlockHandler(a_BlockType)
+ {
+ }
+
+
+ virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
+ {
+ a_Pickups.push_back(cItem(E_BLOCK_DIRT, 1, 0));
+ }
+
+
+ void OnUpdate(cChunk & a_Chunk, int a_RelX, int a_RelY, int a_RelZ) override
+ {
+ if (m_BlockType != E_BLOCK_GRASS)
+ {
+ return;
+ }
+
+ // Grass becomes dirt if there is something on top of it:
+ if (a_RelY < cChunkDef::Height - 1)
+ {
+ BLOCKTYPE Above = a_Chunk.GetBlock(a_RelX, a_RelY + 1, a_RelZ);
+ if ((!g_BlockTransparent[Above] && !g_BlockOneHitDig[Above]) || IsBlockWater(Above))
+ {
+ a_Chunk.FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_DIRT, E_META_DIRT_NORMAL);
+ return;
+ }
+ }
+
+ // Grass spreads to adjacent dirt blocks:
+ MTRand rand; // TODO: Replace with cFastRandom
+ 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;
+ if ((a_RelY + OfsY < 0) || (a_RelY + OfsY >= cChunkDef::Height - 1))
+ {
+ // Y Coord out of range
+ continue;
+ }
+ int BlockX = a_RelX + OfsX;
+ int BlockY = a_RelY + OfsY;
+ int BlockZ = a_RelZ + OfsZ;
+ cChunk * Chunk = a_Chunk.GetRelNeighborChunkAdjustCoords(BlockX, BlockZ);
+ if (Chunk == NULL)
+ {
+ // Unloaded chunk
+ continue;
+ }
+ Chunk->GetBlockTypeMeta(BlockX, BlockY, BlockZ, DestBlock, DestMeta);
+ if ((DestBlock != E_BLOCK_DIRT) || (DestMeta != E_META_DIRT_NORMAL))
+ {
+ // Not a regular dirt block
+ continue;
+ }
+
+ BLOCKTYPE AboveDest;
+ NIBBLETYPE AboveMeta;
+ Chunk->GetBlockTypeMeta(BlockX, BlockY + 1, BlockZ, AboveDest, AboveMeta);
+ if ((g_BlockOneHitDig[AboveDest] || g_BlockTransparent[AboveDest]) && !IsBlockWater(AboveDest))
+ {
+ Chunk->FastSetBlock(a_RelX + OfsX, a_RelY + OfsY, a_RelZ + OfsZ, E_BLOCK_GRASS, 0);
+ }
+ } // for i - repeat twice
+ }
+
+
+ virtual const char * GetStepSound(void) override
+ {
+ return "step.gravel";
+ }
+} ;
+
+
+
+