176 lines
3.1 KiB
C++
176 lines
3.1 KiB
C++
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#pragma once
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#include "BlockHandler.h"
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class cBlockFluidHandler:
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public cBlockHandler
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{
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using Super = cBlockHandler;
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public:
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using Super::Super;
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private:
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virtual cItems ConvertToPickups(NIBBLETYPE a_BlockMeta, cBlockEntity * a_BlockEntity, const cEntity * a_Digger, const cItem * a_Tool) const override
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{
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// No pickups
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return {};
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}
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virtual bool DoesIgnoreBuildCollision(cChunkInterface & a_ChunkInterface, Vector3i a_Pos, cPlayer & a_Player, NIBBLETYPE a_Meta) const override
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{
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return true;
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}
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virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
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{
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UNUSED(a_Meta);
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if (IsBlockWater(m_BlockType))
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{
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return 12;
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}
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ASSERT(!"Unhandled blocktype in fluid/water handler!");
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return 0;
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}
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virtual bool CanSustainPlant(BLOCKTYPE a_Plant) const override
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{
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return (
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(a_Plant == E_BLOCK_BEETROOTS) ||
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(a_Plant == E_BLOCK_CROPS) ||
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(a_Plant == E_BLOCK_CARROTS) ||
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(a_Plant == E_BLOCK_POTATOES) ||
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(a_Plant == E_BLOCK_MELON_STEM) ||
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(a_Plant == E_BLOCK_PUMPKIN_STEM)
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);
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}
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} ;
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class cBlockLavaHandler:
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public cBlockFluidHandler
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{
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using Super = cBlockFluidHandler;
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public:
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using Super::Super;
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private:
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virtual void OnUpdate(
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cChunkInterface & a_ChunkInterface,
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cWorldInterface & a_WorldInterface,
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cBlockPluginInterface & a_PluginInterface,
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cChunk & a_Chunk,
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const Vector3i a_RelPos
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) const override
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{
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if (a_Chunk.GetWorld()->ShouldLavaSpawnFire())
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{
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// Try to start up to 5 fires:
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for (int i = 0; i < 5; i++)
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{
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TryStartFireNear(a_RelPos, a_Chunk);
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}
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}
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}
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/** Tries to start a fire near the lava at given coords. Returns true if fire started. */
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static bool TryStartFireNear(const Vector3i a_RelPos, cChunk & a_Chunk)
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{
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// Pick a random block next to this lava block:
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int rnd = a_Chunk.GetWorld()->GetTickRandomNumber(cChunkDef::NumBlocks * 8) / 7;
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int x = (rnd % 3) - 1; // -1 .. 1
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int y = ((rnd / 4) % 4) - 1; // -1 .. 2
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int z = ((rnd / 16) % 3) - 1; // -1 .. 1
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auto Pos = a_RelPos + Vector3i(x, y, z);
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// Check if it's fuel:
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BLOCKTYPE BlockType;
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if (
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!cChunkDef::IsValidHeight(Pos.y) ||
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!a_Chunk.UnboundedRelGetBlockType(Pos, BlockType) ||
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!cFireSimulator::IsFuel(BlockType)
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)
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{
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return false;
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}
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// Try to set it on fire:
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static Vector3i CrossCoords[] =
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{
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{-1, 0, 0},
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{ 1, 0, 0},
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{ 0, -1, 0},
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{ 0, 1, 0},
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{ 0, 0, -1},
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{ 0, 0, 1},
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} ;
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for (size_t i = 0; i < ARRAYCOUNT(CrossCoords); i++)
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{
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auto NeighborPos = Pos + CrossCoords[i];
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if (
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cChunkDef::IsValidHeight(NeighborPos.y) &&
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a_Chunk.UnboundedRelGetBlockType(NeighborPos, BlockType) &&
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(BlockType == E_BLOCK_AIR)
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)
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{
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// This is an air block next to a fuel next to lava, light the fuel block up:
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a_Chunk.UnboundedRelSetBlock(NeighborPos, E_BLOCK_FIRE, 0);
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return true;
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}
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} // for i - CrossCoords[]
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return false;
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}
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virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) const override
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{
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UNUSED(a_Meta);
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return 4;
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}
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virtual bool CanSustainPlant(BLOCKTYPE a_Plant) const override
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{
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return false;
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}
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} ;
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