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
|
#pragma once
#include "Defines.h"
// fwd: World.h
class cWorld;
class cPiston
{
public:
cPiston(cWorld * a_World);
static NIBBLETYPE RotationPitchToMetaData(double a_Rotation, double a_Pitch)
{
if (a_Pitch >= 50)
{
return 0x1;
}
else if (a_Pitch <= -50)
{
return 0x0;
}
else
{
a_Rotation += 90 + 45; // So its not aligned with axis
if (a_Rotation > 360)
{
a_Rotation -= 360;
}
if ((a_Rotation >= 0) && (a_Rotation < 90))
{
return 0x4;
}
else if ((a_Rotation >= 180) && (a_Rotation < 270))
{
return 0x5;
}
else if ((a_Rotation >= 90) && (a_Rotation < 180))
{
return 0x2;
}
else
{
return 0x3;
}
}
}
static eBlockFace MetaDataToDirection(NIBBLETYPE a_MetaData)
{
switch (a_MetaData)
{
//case -1: return BLOCK_FACE_NONE; //can never happen as metadata is unsigned
case 0x0: return BLOCK_FACE_YM;
case 0x1: return BLOCK_FACE_YP;
case 0x2: return BLOCK_FACE_ZM;
case 0x3: return BLOCK_FACE_ZP;
case 0x4: return BLOCK_FACE_XM;
case 0x5: return BLOCK_FACE_XP;
default:
{
ASSERT(!"Invalid Metadata");
return BLOCK_FACE_NONE;
}
}
}
void ExtendPiston( int, int, int );
void RetractPiston( int, int, int );
/// Returns true if the piston (specified by blocktype) is a sticky piston
static bool IsSticky(BLOCKTYPE a_BlockType);
/// Returns true if the piston (with the specified meta) is extended
static bool IsExtended(NIBBLETYPE a_PistonMeta);
/// Returns true if the specified block can be pushed by a piston (and left intact)
static bool CanPush(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
/// Returns true if the specified block can be pushed by a piston and broken / replaced
static bool CanBreakPush(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
/// Returns true if the specified block can be pulled by a sticky piston
static bool CanPull(BLOCKTYPE a_BlockType, NIBBLETYPE a_BlockMeta);
/// Updates the coords by the specified amount in the direction a piston of the specified meta is facing
static void AddDir(int & a_BlockX, int & a_BlockY, int & a_BlockZ, NIBBLETYPE a_PistonMeta, int a_Amount);
cWorld * m_World;
private:
void ChainMove( int, int, int, char, unsigned short * );
/// Returns how many blocks the piston has to push (where the first free space is); <0 when unpushable
int FirstPassthroughBlock(int a_PistonX, int a_PistonY, int a_PistonZ, NIBBLETYPE a_PistonMeta);
} ;
|
