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
|
// BlockFarmland.h
// Declares the cBlcokFarmlandHandler representing the block handler for farmland
#pragma once
#include "BlockHandler.h"
#include "../BlockArea.h"
class cBlockFarmlandHandler :
public cBlockHandler
{
public:
cBlockFarmlandHandler(BLOCKTYPE a_BlockType) :
cBlockHandler(a_BlockType)
{
}
virtual void OnUpdate(cChunkInterface & cChunkInterface, cWorldInterface & a_WorldInterface, cBlockPluginInterface & a_PluginInterface, cChunk & a_Chunk, int a_RelX, int a_RelY, int a_RelZ) override
{
NIBBLETYPE BlockMeta = a_Chunk.GetMeta(a_RelX, a_RelY, a_RelZ);
if (IsWaterInNear(a_Chunk, a_RelX, a_RelY, a_RelZ))
{
// Water was found, set block meta to 7
a_Chunk.FastSetBlock(a_RelX, a_RelY, a_RelZ, m_BlockType, 7);
return;
}
// Water wasn't found, de-hydrate block:
if (BlockMeta > 0)
{
a_Chunk.FastSetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_FARMLAND, --BlockMeta);
return;
}
// Farmland too dry. If nothing is growing on top, turn back to dirt:
BLOCKTYPE UpperBlock = (a_RelY >= cChunkDef::Height - 1) ? E_BLOCK_AIR : a_Chunk.GetBlock(a_RelX, a_RelY + 1, a_RelZ);
switch (UpperBlock)
{
case E_BLOCK_CROPS:
case E_BLOCK_POTATOES:
case E_BLOCK_CARROTS:
case E_BLOCK_MELON_STEM:
case E_BLOCK_PUMPKIN_STEM:
{
// Produce on top, don't revert
break;
}
default:
{
a_Chunk.SetBlock(a_RelX, a_RelY, a_RelZ, E_BLOCK_DIRT, 0);
break;
}
}
}
virtual void OnNeighborChanged(cChunkInterface & a_ChunkInterface, int a_BlockX, int a_BlockY, int a_BlockZ, eBlockFace a_WhichNeighbor) override
{
// Don't care about any neighbor but the one above us (fix recursion loop in #2213):
if (a_WhichNeighbor != BLOCK_FACE_YP)
{
return;
}
// Don't care about anything if we're at the top of the world:
if (a_BlockY >= cChunkDef::Height)
{
return;
}
// Check whether we should revert to dirt:
BLOCKTYPE UpperBlock = a_ChunkInterface.GetBlock(a_BlockX, a_BlockY + 1, a_BlockZ);
if (cBlockInfo::FullyOccupiesVoxel(UpperBlock))
{
a_ChunkInterface.SetBlock(a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_DIRT, 0);
}
}
virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
{
a_Pickups.Add(E_BLOCK_DIRT, 1, 0); // Reset meta
}
bool IsWaterInNear(cChunk & a_Chunk, int a_RelX, int a_RelY, int a_RelZ)
{
if (a_Chunk.GetWorld()->IsWeatherWetAt(a_RelX, a_RelZ))
{
// Rain hydrates farmland, too, except in Desert biomes.
return true;
}
// Search for water in a close proximity:
// Ref.: http://www.minecraftwiki.net/wiki/Farmland#Hydrated_Farmland_Tiles
// TODO: Rewrite this to use the chunk and its neighbors directly
cBlockArea Area;
int BlockX = a_RelX + a_Chunk.GetPosX() * cChunkDef::Width;
int BlockZ = a_RelZ + a_Chunk.GetPosZ() * cChunkDef::Width;
if (!Area.Read(a_Chunk.GetWorld(), BlockX - 4, BlockX + 4, a_RelY, a_RelY + 1, BlockZ - 4, BlockZ + 4))
{
// Too close to the world edge, cannot check surroundings
return false;
}
size_t NumBlocks = Area.GetBlockCount();
BLOCKTYPE * BlockTypes = Area.GetBlockTypes();
for (size_t i = 0; i < NumBlocks; i++)
{
if (IsBlockWater(BlockTypes[i]))
{
return true;
}
} // for i - BlockTypes[]
return false;
}
} ;
|
