1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
|
#pragma once
#include "BlockHandler.h"
#include "../FastRandom.h"
#include "../Root.h"
#include "../Bindings/PluginManager.h"
/** Handler used for all types of 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
{
if (a_BlockMeta == E_META_DIRT_COARSE)
{
// Drop the coarse block (dirt, meta 1)
a_Pickups.Add(E_BLOCK_DIRT, 1, E_META_DIRT_COARSE);
}
else
{
a_Pickups.Add(E_BLOCK_DIRT, 1, E_META_DIRT_NORMAL);
}
}
virtual void OnUpdate(cChunkInterface & cChunkInterface, cWorldInterface & a_WorldInterface, cBlockPluginInterface & a_PluginInterface, cChunk & a_Chunk, int a_RelX, int a_RelY, int a_RelZ) override
{
if (m_BlockType != E_BLOCK_GRASS)
{
return;
}
// 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;
}
int BlockX = a_RelX + OfsX;
int BlockY = a_RelY + OfsY;
int BlockZ = a_RelZ + OfsZ;
cChunk * Chunk = a_Chunk.GetRelNeighborChunkAdjustCoords(BlockX, BlockZ);
if (Chunk == nullptr)
{
// 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 above = Chunk->GetBlock(BlockX, BlockY + 1, BlockZ);
NIBBLETYPE light = std::max(Chunk->GetBlockLight(BlockX, BlockY + 1, BlockZ), Chunk->GetTimeAlteredLight(Chunk->GetSkyLight(BlockX, BlockY + 1, BlockZ)));
if ((light > 4) &&
cBlockInfo::IsTransparent(above) &&
(!IsBlockLava(above)) &&
(!IsBlockWaterOrIce(above))
)
{
if (!cRoot::Get()->GetPluginManager()->CallHookBlockSpread(*Chunk->GetWorld(), Chunk->GetPosX() * cChunkDef::Width + BlockX, BlockY, Chunk->GetPosZ() * cChunkDef::Width + BlockZ, ssGrassSpread))
{
Chunk->FastSetBlock(BlockX, BlockY, BlockZ, E_BLOCK_GRASS, 0);
}
}
} // for i - repeat twice
}
virtual ColourID GetMapBaseColourID(NIBBLETYPE a_Meta) override
{
UNUSED(a_Meta);
switch (m_BlockType)
{
case E_BLOCK_DIRT: return 10;
case E_BLOCK_GRASS: return 1;
default:
{
ASSERT(!"Unhandled blocktype in dirt handler!");
return 0;
}
}
}
} ;
|
