raze-gles/source/core/gamefuncs.h
2021-05-12 21:48:14 +02:00

125 lines
3.5 KiB
C++

#pragma once
#include "gamecontrol.h"
#include "binaryangle.h"
#include "build.h"
extern int cameradist, cameraclock;
void loaddefinitionsfile(const char* fn, bool cumulative = false);
bool calcChaseCamPos(int* px, int* py, int* pz, spritetype* pspr, short *psectnum, binangle ang, fixedhoriz horiz, double const smoothratio);
void PlanesAtPoint(const sectortype* sec, int dax, int day, float* ceilz, float* florz);
inline void PlanesAtPoint(const sectortype* sec, float dax, float day, float* ceilz, float* florz) // this is just for warning evasion.
{
PlanesAtPoint(sec, int(dax), int(day), ceilz, florz);
}
void setWallSectors();
void GetWallSpritePosition(const spritetype* spr, vec2_t pos, vec2_t* out, bool render = false);
void GetFlatSpritePosition(const spritetype* spr, vec2_t pos, vec2_t* out, bool render = false);
void checkRotatedWalls();
// y is negated so that the orientation is the same as in GZDoom, in order to use its utilities.
// The render code should NOT use Build coordinates for anything!
inline double WallStartX(int wallnum)
{
return wall[wallnum].x * (1 / 16.);
}
inline double WallStartY(int wallnum)
{
return wall[wallnum].y * (1 / -16.);
}
inline double WallEndX(int wallnum)
{
return wall[wall[wallnum].point2].x * (1 / 16.);
}
inline double WallEndY(int wallnum)
{
return wall[wall[wallnum].point2].y * (1 / -16.);
}
inline double WallStartX(const walltype* wallnum)
{
return wallnum->x * (1 / 16.);
}
inline double WallStartY(const walltype* wallnum)
{
return wallnum->y * (1 / -16.);
}
inline DVector2 WallStart(const walltype* wallnum)
{
return { WallStartX(wallnum), WallStartY(wallnum) };
}
inline double WallEndX(const walltype* wallnum)
{
return wall[wallnum->point2].x * (1 / 16.);
}
inline double WallEndY(const walltype* wallnum)
{
return wall[wallnum->point2].y * (1 / -16.);
}
inline DVector2 WallEnd(const walltype* wallnum)
{
return { WallEndX(wallnum), WallEndY(wallnum) };
}
inline DVector2 WallDelta(const walltype* wallnum)
{
return WallEnd(wallnum) - WallStart(wallnum);
}
inline double SpriteX(int wallnum)
{
return sprite[wallnum].x * (1 / 16.);
}
inline double SpriteY(int wallnum)
{
return sprite[wallnum].y * (1 / -16.);
}
inline double PointOnLineSide(double x, double y, double linex, double liney, double deltax, double deltay)
{
return (x - linex) * deltay - (y - liney) * deltax;
}
inline double PointOnLineSide(const DVector2 &pos, const walltype *line)
{
return (pos.X - WallStartX(line)) * WallDelta(line).Y - (pos.Y - WallStartY(line)) * WallDelta(line).X;
}
template<class T>
inline double PointOnLineSide(const TVector2<T>& pos, const TVector2<T>& linestart, const TVector2<T>& lineend)
{
return (pos.X - linestart.X) * (lineend.Y - linestart.Y) - (pos.Y - linestart.Y) * (lineend.X - linestart.X);
}
inline int sectorofwall(int wallNum)
{
if ((unsigned)wallNum < (unsigned)numwalls) return wall[wallNum].sector;
return -1;
}
extern int numshades;
// Return type is int because this gets passed to variadic functions where structs may produce undefined behavior.
inline int shadeToLight(int shade)
{
shade = clamp(shade, 0, numshades - 1);
int light = Scale(numshades - 1 - shade, 255, numshades - 1);
return PalEntry(255, light, light, light);
}
inline void copyfloorpal(spritetype* spr, const sectortype* sect)
{
if (!lookups.noFloorPal(sect->floorpal)) spr->pal = sect->floorpal;
}