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Facing.h
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Facing.h
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#pragma once
#include <Dir.h>
#include <Timer.h>
#include <algorithm>
class FacingClass
{
public:
explicit FacingClass() noexcept { }
explicit FacingClass(int rate) noexcept
{
SetROT(rate);
}
explicit FacingClass(const DirStruct& facing) noexcept
{
DesiredFacing = facing;
}
explicit FacingClass(DirType dir) noexcept
{
DesiredFacing.SetDir(dir);
}
explicit FacingClass(const FacingClass& another) noexcept
: DesiredFacing { another.DesiredFacing }
, StartFacing { another.StartFacing }
, RotationTimer { another.RotationTimer }
, ROT { another.ROT }
{ }
FacingClass& operator=(const FacingClass& another)
{
if (this != &another)
{
DesiredFacing = another.DesiredFacing;
StartFacing = another.StartFacing;
RotationTimer = another.RotationTimer;
ROT = another.ROT;
}
return *this;
}
bool SetDesired(const DirStruct& facing) //JMP_THIS(0x4C9220)
{
if (DesiredFacing == facing)
return false;
StartFacing = Current();
DesiredFacing = facing;
if (static_cast<short>(ROT.Raw) > 0)
RotationTimer.Start(NumSteps());
return true;
}
bool SetCurrent(const DirStruct& facing)
{
bool ret = Current() != facing;
if (ret)
{
DesiredFacing = facing;
StartFacing = facing;
}
RotationTimer.Start(0);
return ret;
}
DirStruct Desired() const
{
return DesiredFacing;
}
DirStruct Current() const //0x4C93D0
{
if (IsRotating())
{
const short diff = Difference().Raw;
const short num_steps = static_cast<short>(NumSteps());
if (num_steps > 0)
{
const int steps_left = RotationTimer.GetTimeLeft();
return DirStruct { DesiredFacing.Raw - steps_left * diff / num_steps };
}
}
return DesiredFacing;
}
bool IsRotating() const // JMP_THIS(0x4C9480)
{
return static_cast<short>(ROT.Raw) > 0 && RotationTimer.GetTimeLeft();
}
bool IsRotatingCCW() const // JMP_THIS(0x4C94F0) counter-clockwise
{
if (!IsRotating())
return false;
return static_cast<short>(Difference().Raw) < 0;
}
bool IsRotatingCW() const // JMP_THIS(0x4C94B0) clockwise
{
if (!IsRotating())
return false;
return static_cast<short>(Difference().Raw) > 0;
}
DirStruct Difference() const
{
return DirStruct { static_cast<short>(DesiredFacing.Raw) - static_cast<short>(StartFacing.Raw) };
}
void SetROT(int rate)
{
if (rate > 127)
rate = 127;
ROT.SetDir(static_cast<DirType>(rate));
}
private:
int NumSteps() const
{
return std::abs(static_cast<short>(Difference().Raw)) / ROT.Raw;
}
public:
DirStruct DesiredFacing;
DirStruct StartFacing; // The starting direction from which to calcuate the rotation.
CDTimerClass RotationTimer;
DirStruct ROT;
};