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
|
#pragma once
#include "BlockHandler.h"
#include "../FastRandom.h"
#include "../BlockInfo.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 is not transparent
if (!cBlockInfo::IsTransparent(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:
cFastRandom rand;
for (int i = 0; i < 2; i++) // Pick two blocks to grow to
{
int OfsX = rand.NextInt(3) - 1; // [-1 .. 1]
int OfsY = rand.NextInt(5) - 3; // [-3 .. 1]
int OfsZ = rand.NextInt(3) - 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 == 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 = a_Chunk.GetBlock(BlockX, BlockY + 1, BlockZ);
NIBBLETYPE light = std::max(a_Chunk.GetBlockLight(BlockX, BlockY + 1, BlockZ), a_Chunk.GetTimeAlteredLight(a_Chunk.GetSkyLight(BlockX, BlockY + 1, BlockZ)));
// Grass does not spread to blocks with a light level less than 5
if ((light > 4) && cBlockInfo::IsTransparent(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;
}
}
}
} ;
|
