d8c8d0124d
* We no longer need to track the powering block with the removal of SolidBlockHandler. PowerLevel is now just an unsigned char
156 lines
4.9 KiB
C++
156 lines
4.9 KiB
C++
|
|
#pragma once
|
|
|
|
#include "../../Blocks/BlockRedstoneRepeater.h"
|
|
|
|
|
|
|
|
|
|
|
|
namespace RedstoneRepeaterHandler
|
|
{
|
|
inline 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. */
|
|
inline std::pair<bool, NIBBLETYPE> IsOnRepeater(cChunk & Chunk, const Vector3i a_Position)
|
|
{
|
|
BLOCKTYPE Type;
|
|
NIBBLETYPE Meta;
|
|
|
|
if (!Chunk.UnboundedRelGetBlock(a_Position, Type, Meta))
|
|
{
|
|
return std::make_pair(false, 0);
|
|
}
|
|
|
|
return std::make_pair(IsOn(Type), Meta);
|
|
}
|
|
|
|
/** 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. */
|
|
inline 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))
|
|
;
|
|
}
|
|
|
|
/** 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 bool IsLocked(cChunk & Chunk, 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(Chunk, 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(Chunk, -LhsOffset + a_Position);
|
|
return Rhs.first && DoesLhsLockMe(a_Meta, Rhs.second);
|
|
}
|
|
|
|
inline PowerLevel GetPowerDeliveredToPosition(const cChunk & a_Chunk, Vector3i a_Position, BLOCKTYPE a_BlockType, Vector3i a_QueryPosition, BLOCKTYPE a_QueryBlockType, bool IsLinked)
|
|
{
|
|
if (!IsOn(a_BlockType))
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
const auto FrontOffset = cBlockRedstoneRepeaterHandler::GetFrontCoordinateOffset(a_Chunk.GetMeta(a_Position));
|
|
const auto FrontPosition = a_Position + FrontOffset;
|
|
if (a_QueryPosition == FrontPosition)
|
|
{
|
|
return 15;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
inline void Update(cChunk & a_Chunk, cChunk & CurrentlyTicking, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, const PowerLevel Power)
|
|
{
|
|
// LOGD("Evaluating loopy the repeater (%d %d %d)", a_Position.x, a_Position.y, a_Position.z);
|
|
|
|
auto & Data = DataForChunk(a_Chunk);
|
|
const auto DelayInfo = Data.GetMechanismDelayInfo(a_Position);
|
|
|
|
// If the repeater is locked by another, ignore and forget all power changes:
|
|
if (IsLocked(a_Chunk, a_Position, a_Meta))
|
|
{
|
|
if (DelayInfo != nullptr)
|
|
{
|
|
Data.m_MechanismDelays.erase(a_Position);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
if (DelayInfo == nullptr)
|
|
{
|
|
bool ShouldBeOn = (Power != 0);
|
|
if (ShouldBeOn != IsOn(a_BlockType))
|
|
{
|
|
Data.m_MechanismDelays[a_Position] = std::make_pair((((a_Meta & 0xC) >> 0x2) + 1), ShouldBeOn);
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
int DelayTicks;
|
|
bool ShouldPowerOn;
|
|
std::tie(DelayTicks, ShouldPowerOn) = *DelayInfo;
|
|
|
|
if (DelayTicks != 0)
|
|
{
|
|
return;
|
|
}
|
|
|
|
const auto NewType = ShouldPowerOn ? E_BLOCK_REDSTONE_REPEATER_ON : E_BLOCK_REDSTONE_REPEATER_OFF;
|
|
a_Chunk.FastSetBlock(a_Position, NewType, a_Meta);
|
|
Data.m_MechanismDelays.erase(a_Position);
|
|
|
|
// While sleeping, we ignore any power changes and apply our saved ShouldBeOn when sleep expires
|
|
// Now, we need to recalculate to be aware of any new changes that may e.g. cause a new output change
|
|
// FastSetBlock doesn't wake simulators, so manually update ourselves:
|
|
Update(a_Chunk, CurrentlyTicking, a_Position, NewType, a_Meta, Power);
|
|
|
|
UpdateAdjustedRelative(a_Chunk, CurrentlyTicking, a_Position, cBlockRedstoneRepeaterHandler::GetFrontCoordinateOffset(a_Meta));
|
|
}
|
|
|
|
inline void ForValidSourcePositions(const cChunk & a_Chunk, Vector3i a_Position, BLOCKTYPE a_BlockType, NIBBLETYPE a_Meta, ForEachSourceCallback & Callback)
|
|
{
|
|
Callback(cBlockRedstoneRepeaterHandler::GetRearCoordinateOffset(a_Meta) + a_Position);
|
|
}
|
|
};
|