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
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
#pragma once
#include "BlockHandler.h"
#include "../Entities/Player.h"
#include "Chunk.h"
class cBlockDoorHandler :
public cBlockHandler
{
public:
cBlockDoorHandler(BLOCKTYPE a_BlockType);
virtual void OnDestroyed(cChunkInterface & a_ChunkInterface, cWorldInterface & a_WorldInterface, int a_BlockX, int a_BlockY, int a_BlockZ) override;
virtual void OnUse(cChunkInterface & a_ChunkInterface, cWorldInterface & a_WorldInterface, cPlayer * a_Player, int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace, int a_CursorX, int a_CursorY, int a_CursorZ) override;
virtual const char * GetStepSound(void) override;
virtual bool GetPlacementBlockTypeMeta(
cChunkInterface & a_ChunkInterface, cPlayer * a_Player,
int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace,
int a_CursorX, int a_CursorY, int a_CursorZ,
BLOCKTYPE & a_BlockType, NIBBLETYPE & a_BlockMeta
) override
{
// If clicking a bottom face, place the door one block lower:
if (a_BlockFace == BLOCK_FACE_BOTTOM)
{
a_BlockY--;
}
if (
!CanReplaceBlock(a_ChunkInterface.GetBlock(a_BlockX, a_BlockY, a_BlockZ)) ||
!CanReplaceBlock(a_ChunkInterface.GetBlock(a_BlockX, a_BlockY + 1, a_BlockZ))
)
{
return false;
}
a_BlockType = m_BlockType;
a_BlockMeta = PlayerYawToMetaData(a_Player->GetYaw());
return true;
}
virtual void ConvertToPickups(cItems & a_Pickups, NIBBLETYPE a_BlockMeta) override
{
a_Pickups.push_back(cItem((m_BlockType == E_BLOCK_WOODEN_DOOR) ? E_ITEM_WOODEN_DOOR : E_ITEM_IRON_DOOR, 1, 0));
}
virtual void OnPlacedByPlayer(
cChunkInterface & a_ChunkInterface, cWorldInterface & a_WorldInterface, cPlayer * a_Player,
int a_BlockX, int a_BlockY, int a_BlockZ, char a_BlockFace,
int a_CursorX, int a_CursorY, int a_CursorZ,
BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta
) override;
virtual bool IsUseable(void) override
{
return true;
}
virtual bool CanBeAt(cChunkInterface & a_ChunkInterface, int a_RelX, int a_RelY, int a_RelZ, const cChunk & a_Chunk) override
{
return ((a_RelY > 0) && (a_Chunk.GetBlock(a_RelX, a_RelY - 1, a_RelZ) != E_BLOCK_AIR));
}
bool CanReplaceBlock(BLOCKTYPE a_BlockType)
{
switch (a_BlockType)
{
case E_BLOCK_AIR:
case E_BLOCK_TALL_GRASS:
case E_BLOCK_WATER:
case E_BLOCK_STATIONARY_WATER:
case E_BLOCK_LAVA:
case E_BLOCK_STATIONARY_LAVA:
case E_BLOCK_SNOW:
case E_BLOCK_FIRE:
{
return true;
}
}
return false;
}
/// Converts the player's yaw to placed door's blockmeta
inline static NIBBLETYPE PlayerYawToMetaData(double a_Yaw)
{
ASSERT((a_Yaw >= -180) && (a_Yaw < 180));
a_Yaw += 90 + 45;
if (a_Yaw > 360)
{
a_Yaw -= 360;
}
if ((a_Yaw >= 0) && (a_Yaw < 90))
{
return 0x0;
}
else if ((a_Yaw >= 180) && (a_Yaw < 270))
{
return 0x2;
}
else if ((a_Yaw >= 90) && (a_Yaw < 180))
{
return 0x1;
}
else
{
return 0x3;
}
}
/// Returns true if the specified blocktype is any kind of door
inline static bool IsDoor(BLOCKTYPE a_Block)
{
return (a_Block == E_BLOCK_WOODEN_DOOR) || (a_Block == E_BLOCK_IRON_DOOR);
}
/// Returns the metadata for the opposite door state (open vs closed)
static NIBBLETYPE ChangeStateMetaData(NIBBLETYPE a_MetaData)
{
return a_MetaData ^ 4;
}
/// Changes the door at the specified coords from open to close or vice versa
static void ChangeDoor(cChunkInterface & a_ChunkInterface, int a_X, int a_Y, int a_Z)
{
NIBBLETYPE OldMetaData = a_ChunkInterface.GetBlockMeta(a_X, a_Y, a_Z);
a_ChunkInterface.SetBlockMeta(a_X, a_Y, a_Z, ChangeStateMetaData(OldMetaData));
if (OldMetaData & 8)
{
// Current block is top of the door
BLOCKTYPE BottomBlock = a_ChunkInterface.GetBlock(a_X, a_Y - 1, a_Z);
NIBBLETYPE BottomMeta = a_ChunkInterface.GetBlockMeta(a_X, a_Y - 1, a_Z);
if (IsDoor(BottomBlock) && !(BottomMeta & 8))
{
a_ChunkInterface.SetBlockMeta(a_X, a_Y - 1, a_Z, ChangeStateMetaData(BottomMeta));
}
}
else
{
// Current block is bottom of the door
BLOCKTYPE TopBlock = a_ChunkInterface.GetBlock(a_X, a_Y + 1, a_Z);
NIBBLETYPE TopMeta = a_ChunkInterface.GetBlockMeta(a_X, a_Y + 1, a_Z);
if (IsDoor(TopBlock) && (TopMeta & 8))
{
a_ChunkInterface.SetBlockMeta(a_X, a_Y + 1, a_Z, ChangeStateMetaData(TopMeta));
}
}
}
} ;
|
