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
|
#pragma once
#include "BlockHandler.h"
#include "../MersenneTwister.h"
#include "../World.h"
/// Handler used for both 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
{
a_Pickups.push_back(cItem(E_ITEM_DIRT, 1, 0));
}
virtual void OnUpdate(cWorld * a_World, int a_BlockX, int a_BlockY, int a_BlockZ) override
{
if (m_BlockType != E_BLOCK_GRASS)
{
return;
}
// Grass becomes dirt if there is something on top of it:
BLOCKTYPE Above = a_World->GetBlock(a_BlockX, a_BlockY + 1, a_BlockZ);
if (!g_BlockTransparent[Above] && !g_BlockOneHitDig[Above])
{
a_World->FastSetBlock(a_BlockX, a_BlockY, a_BlockZ, E_BLOCK_DIRT, 0);
return;
}
// Grass spreads to adjacent blocks:
MTRand rand;
for (int i = 0; i < 2; i++) // Pick two blocks to grow to
{
int OfsX = rand.randInt(2) - 1; // [-1 .. 1]
int OfsY = rand.randInt(4) - 3; // [-3 .. 1]
int OfsZ = rand.randInt(2) - 1; // [-1 .. 1]
BLOCKTYPE DestBlock;
NIBBLETYPE DestMeta;
a_World->GetBlockTypeMeta(a_BlockX + OfsX, a_BlockY + OfsY, a_BlockZ + OfsZ, DestBlock, DestMeta);
if(DestBlock != E_BLOCK_DIRT)
{
continue;
}
BLOCKTYPE AboveDest;
NIBBLETYPE AboveMeta;
a_World->GetBlockTypeMeta(a_BlockX + OfsX, a_BlockY + OfsY + 1, a_BlockZ + OfsZ, AboveDest, AboveMeta);
if (g_BlockOneHitDig[AboveDest] || g_BlockTransparent[AboveDest])
{
a_World->FastSetBlock(a_BlockX + OfsX, a_BlockY + OfsY, a_BlockZ + OfsZ, E_BLOCK_GRASS, 0);
}
} // for i - repeat twice
}
virtual const char * GetStepSound(void) override
{
return "step.gravel";
}
} ;
|
