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
|
#pragma once
#include "RedstoneHandler.h"
#include "../../Blocks/BlockRedstoneRepeater.h"
class cRedstoneRepeaterHandler:
public cRedstoneHandler
{
using Super = cRedstoneHandler;
public:
virtual unsigned char GetPowerDeliveredToPosition(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, Vector3i a_QueryPosition, BLOCKTYPE a_QueryBlockType) const override
{
return (
(a_QueryPosition == (a_Position + cBlockRedstoneRepeaterHandler::GetFrontCoordinateOffset(a_Meta))) ?
GetPowerLevel(a_World, a_Position, a_BlockType, a_Meta) : 0
);
}
virtual unsigned char GetPowerLevel(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta) const override
{
UNUSED(a_World);
UNUSED(a_Position);
UNUSED(a_Meta);
return IsOn(a_BlockType) ? 15 : 0;
}
virtual cVector3iArray Update(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, PoweringData a_PoweringData) const override
{
// LOGD("Evaluating loopy the repeater (%d %d %d)", a_Position.x, a_Position.y, a_Position.z);
auto Data = static_cast<cIncrementalRedstoneSimulator *>(a_World.GetRedstoneSimulator())->GetChunkData();
auto DelayInfo = Data->GetMechanismDelayInfo(a_Position);
// If the repeater is locked by another, ignore and forget all power changes:
if (IsLocked(a_World, a_Position, a_Meta))
{
if (DelayInfo != nullptr)
{
Data->m_MechanismDelays.erase(a_Position);
}
return {};
}
if (DelayInfo == nullptr)
{
bool ShouldBeOn = (a_PoweringData.PowerLevel != 0);
if (ShouldBeOn != IsOn(a_BlockType))
{
Data->m_MechanismDelays[a_Position] = std::make_pair((((a_Meta & 0xC) >> 0x2) + 1), ShouldBeOn);
}
}
else
{
int DelayTicks;
bool ShouldPowerOn;
std::tie(DelayTicks, ShouldPowerOn) = *DelayInfo;
if (DelayTicks == 0)
{
a_World.SetBlock(a_Position.x, a_Position.y, a_Position.z, ShouldPowerOn ? E_BLOCK_REDSTONE_REPEATER_ON : E_BLOCK_REDSTONE_REPEATER_OFF, a_Meta);
Data->m_MechanismDelays.erase(a_Position);
return cVector3iArray{ cBlockRedstoneRepeaterHandler::GetFrontCoordinateOffset(a_Meta) + a_Position };
}
}
return {};
}
virtual cVector3iArray GetValidSourcePositions(cWorld & a_World, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta) const override
{
return { cBlockRedstoneRepeaterHandler::GetRearCoordinateOffset(a_Meta) + a_Position };
}
private:
inline static bool IsOn(BLOCKTYPE a_Block)
{
return (a_Block == E_BLOCK_REDSTONE_REPEATER_ON);
}
/** Returns a pair with first element indicating if the block at the given position is an activated repeater.
If it is activated, the second element is the repeater metadata. */
static std::pair<bool, NIBBLETYPE> IsOnRepeater(cWorld & a_World, const Vector3i a_Position)
{
BLOCKTYPE Type;
NIBBLETYPE Meta;
if (!a_World.GetBlockTypeMeta(a_Position, Type, Meta))
{
return std::make_pair(false, 0);
}
return std::make_pair(IsOn(Type), Meta);
}
/** Determine if a repeater is locked.
A locked repeater is one with another powered repeater facing them, to their immediate left or right sides.
"Left" is relative to the direction the repeater output faces, naturally. */
inline static bool IsLocked(cWorld & a_World, const Vector3i a_Position, const NIBBLETYPE a_Meta)
{
// The left hand side offset. Will be negated to get the rhs offset
const auto LhsOffset = cBlockRedstoneRepeaterHandler::GetLeftCoordinateOffset(a_Meta);
// Test the block to the left of us
const auto Lhs = IsOnRepeater(a_World, LhsOffset + a_Position);
if (Lhs.first && DoesLhsLockMe(Lhs.second, a_Meta))
{
return true;
}
// Test the right side, flipping the argument order to DoesLhsLockMe
const auto Rhs = IsOnRepeater(a_World, -LhsOffset + a_Position);
return Rhs.first && DoesLhsLockMe(a_Meta, Rhs.second);
}
/** Determine, from the metadata of a repeater on our left side, if they lock us.
To test a repeater on our right, simply invert the order of arguments provided.
"Left" is relative to the direction the repeater output faces, naturally. */
static bool DoesLhsLockMe(NIBBLETYPE a_MetaLhs, NIBBLETYPE a_MyMeta)
{
// Get the direction bits
a_MetaLhs &= E_META_REDSTONE_REPEATER_FACING_MASK;
a_MyMeta &= E_META_REDSTONE_REPEATER_FACING_MASK;
/*
Check for a valid locking configuration, where they are perpendicular and one snuggles into the other.
Order of comparisons:
XP >^ ZM
ZP |_ XP
XM <| ZP
ZP ^< xM
Key:
^ Facing up
_ Facing right
| Facing down
< Facing left
*/
return
((a_MetaLhs == E_META_REDSTONE_REPEATER_FACING_XP) && (a_MyMeta == E_META_REDSTONE_REPEATER_FACING_ZM)) ||
((a_MetaLhs == E_META_REDSTONE_REPEATER_FACING_ZP) && (a_MyMeta == E_META_REDSTONE_REPEATER_FACING_XP)) ||
((a_MetaLhs == E_META_REDSTONE_REPEATER_FACING_XM) && (a_MyMeta == E_META_REDSTONE_REPEATER_FACING_ZP)) ||
((a_MetaLhs == E_META_REDSTONE_REPEATER_FACING_ZM) && (a_MyMeta == E_META_REDSTONE_REPEATER_FACING_XM))
;
}
};
|
