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authorMat <mail@mathias.is>2020-03-17 01:23:50 +0100
committerGitHub <noreply@github.com>2020-03-17 01:23:50 +0100
commit0718c44e778aa7295125b5cbd684aeb646eb4067 (patch)
treeb75ad15f32a035ad73034355854f2700d234ed3f /src/Blocks/BlockGrass.h
parentUpdate Core (diff)
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Diffstat (limited to 'src/Blocks/BlockGrass.h')
-rw-r--r--src/Blocks/BlockGrass.h131
1 files changed, 131 insertions, 0 deletions
diff --git a/src/Blocks/BlockGrass.h b/src/Blocks/BlockGrass.h
new file mode 100644
index 000000000..0e54cb092
--- /dev/null
+++ b/src/Blocks/BlockGrass.h
@@ -0,0 +1,131 @@
+
+#pragma once
+
+#include "BlockHandler.h"
+#include "../FastRandom.h"
+#include "../Root.h"
+#include "../Bindings/PluginManager.h"
+
+
+
+
+
+class cBlockGrassHandler :
+ public cBlockHandler
+{
+ using super = cBlockHandler;
+
+public:
+
+ cBlockGrassHandler(BLOCKTYPE a_BlockType):
+ super(a_BlockType)
+ {
+ }
+
+
+
+
+
+ virtual cItems ConvertToPickups(NIBBLETYPE a_BlockMeta, cBlockEntity * a_BlockEntity, const cEntity * a_Digger, const cItem * a_Tool) override
+ {
+ if (!ToolHasSilkTouch(a_Tool))
+ {
+ return cItem(E_BLOCK_DIRT, 1, 0);
+ }
+ return cItem(E_BLOCK_GRASS, 1, 0);
+ }
+
+
+
+
+
+ virtual void OnUpdate(cChunkInterface & cChunkInterface, cWorldInterface & a_WorldInterface, cBlockPluginInterface & a_PluginInterface, cChunk & a_Chunk, int a_RelX, int a_RelY, int a_RelZ) override
+ {
+ // Make sure that there is enough light at the source block to spread
+ if (!a_Chunk.GetWorld()->IsChunkLighted(a_Chunk.GetPosX(), a_Chunk.GetPosZ()))
+ {
+ a_Chunk.GetWorld()->QueueLightChunk(a_Chunk.GetPosX(), a_Chunk.GetPosZ());
+ return;
+ }
+ else if ((a_RelY < cChunkDef::Height - 1))
+ {
+ BLOCKTYPE above = a_Chunk.GetBlock(a_RelX, a_RelY + 1, a_RelZ);
+
+ // Grass turns back to dirt when the block above it is not transparent or water.
+ // It does not turn to dirt when a snow layer is above.
+ if ((above != E_BLOCK_SNOW) &&
+ (!cBlockInfo::IsTransparent(above) || IsBlockWater(above)))
+ {
+ a_Chunk.FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_DIRT, E_META_DIRT_NORMAL);
+ return;
+ }
+
+ NIBBLETYPE light = std::max(a_Chunk.GetBlockLight(a_RelX, a_RelY + 1, a_RelZ), a_Chunk.GetTimeAlteredLight(a_Chunk.GetSkyLight(a_RelX, a_RelY + 1, a_RelZ)));
+ // Source block is not bright enough to spread
+ if (light < 9)
+ {
+ return;
+ }
+
+ }
+
+ // Grass spreads to adjacent dirt blocks:
+ auto & rand = GetRandomProvider();
+ for (int i = 0; i < 2; i++) // Pick two blocks to grow to
+ {
+ int OfsX = rand.RandInt(-1, 1);
+ int OfsY = rand.RandInt(-3, 1);
+ int OfsZ = rand.RandInt(-1, 1);
+
+ BLOCKTYPE DestBlock;
+ NIBBLETYPE DestMeta;
+ if (!cChunkDef::IsValidHeight(a_RelY + OfsY))
+ {
+ // Y Coord out of range
+ continue;
+ }
+ Vector3i pos(a_RelX + OfsX, a_RelY + OfsY, a_RelZ + OfsZ);
+ auto chunk = a_Chunk.GetRelNeighborChunkAdjustCoords(pos);
+ if (chunk == nullptr)
+ {
+ // Unloaded chunk
+ continue;
+ }
+ chunk->GetBlockTypeMeta(pos, DestBlock, DestMeta);
+ if ((DestBlock != E_BLOCK_DIRT) || (DestMeta != E_META_DIRT_NORMAL))
+ {
+ // Not a regular dirt block
+ continue;
+ }
+ auto abovePos = pos.addedY(1);
+ BLOCKTYPE above = chunk->GetBlock(abovePos);
+ NIBBLETYPE light = std::max(chunk->GetBlockLight(abovePos), chunk->GetTimeAlteredLight(chunk->GetSkyLight(abovePos)));
+ if ((light > 4) &&
+ cBlockInfo::IsTransparent(above) &&
+ (!IsBlockLava(above)) &&
+ (!IsBlockWaterOrIce(above))
+ )
+ {
+ auto absPos = chunk->RelativeToAbsolute(pos);
+ if (!cRoot::Get()->GetPluginManager()->CallHookBlockSpread(*chunk->GetWorld(), absPos.x, absPos.y, absPos.z, ssGrassSpread))
+ {
+ chunk->FastSetBlock(pos, E_BLOCK_GRASS, 0);
+ }
+ }
+ } // for i - repeat twice
+ }
+
+
+
+
+
+ virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) override
+ {
+ UNUSED(a_Meta);
+ return 1;
+ }
+} ;
+
+
+
+