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Add more macros

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This commit is contained in:
Miloslav Číž 2018-09-08 07:52:55 +02:00
parent fa287067b4
commit d61340df62
1 changed files with 26 additions and 15 deletions
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41
raycastlib.h
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@ -46,6 +46,22 @@
#define HORIZONTAL_FOV_HALF (HORIZONTAL_FOV / 2) #define HORIZONTAL_FOV_HALF (HORIZONTAL_FOV / 2)
#ifndef CAMERA_COLL_RADIUS
#define CAMERA_COLL_RADIUS UNITS_PER_SQUARE / 4
#endif
#ifndef CAMERA_COLL_HEIGHT_BELOW
#define CAMERA_COLL_HEIGHT_BELOW UNITS_PER_SQUARE
#endif
#ifndef CAMERA_COLL_HEIGHT_ABOVE
#define CAMERA_COLL_HEIGHT_ABOVE (UNITS_PER_SQUARE / 3)
#endif
#ifndef CAMERA_COLL_STEP_HEIGHT
#define CAMERA_COLL_STEP_HEIGHT (UNITS_PER_SQUARE / 2)
#endif
#define logVector2D(v)\ #define logVector2D(v)\
printf("[%d,%d]\n",v.x,v.y); printf("[%d,%d]\n",v.x,v.y);
@ -110,11 +126,6 @@ typedef struct
int16_t shear; /* Shear offset in pixels (0 => no shear), can simulate int16_t shear; /* Shear offset in pixels (0 => no shear), can simulate
looking up/down. */ looking up/down. */
Unit height; Unit height;
Unit collisionRadius;
Unit collisionHeightBelow;
Unit collisionHeightAbove;
Unit collisionStepHeight;
} Camera; } Camera;
/** /**
@ -989,8 +1000,8 @@ void moveCameraWithCollision(Camera *camera, Vector2D planeOffset,
int16_t xDir = planeOffset.x > 0 ? 1 : (planeOffset.x < 0 ? -1 : 0); int16_t xDir = planeOffset.x > 0 ? 1 : (planeOffset.x < 0 ? -1 : 0);
int16_t yDir = planeOffset.y > 0 ? 1 : (planeOffset.y < 0 ? -1 : 0); int16_t yDir = planeOffset.y > 0 ? 1 : (planeOffset.y < 0 ? -1 : 0);
corner.x = camera->position.x + xDir * camera->collisionRadius; corner.x = camera->position.x + xDir * CAMERA_COLL_RADIUS;
corner.y = camera->position.y + yDir * camera->collisionRadius; corner.y = camera->position.y + yDir * CAMERA_COLL_RADIUS;
int16_t xSquare = divRoundDown(corner.x,UNITS_PER_SQUARE); int16_t xSquare = divRoundDown(corner.x,UNITS_PER_SQUARE);
int16_t ySquare = divRoundDown(corner.y,UNITS_PER_SQUARE); int16_t ySquare = divRoundDown(corner.y,UNITS_PER_SQUARE);
@ -1001,9 +1012,9 @@ void moveCameraWithCollision(Camera *camera, Vector2D planeOffset,
xSquareNew = divRoundDown(cornerNew.x,UNITS_PER_SQUARE); xSquareNew = divRoundDown(cornerNew.x,UNITS_PER_SQUARE);
ySquareNew = divRoundDown(cornerNew.y,UNITS_PER_SQUARE); ySquareNew = divRoundDown(cornerNew.y,UNITS_PER_SQUARE);
Unit bottomLimit = camera->height - camera->collisionHeightBelow + Unit bottomLimit = camera->height - CAMERA_COLL_HEIGHT_BELOW +
camera->collisionStepHeight; CAMERA_COLL_RADIUS;
Unit topLimit = camera->height + camera->collisionHeightAbove; Unit topLimit = camera->height + CAMERA_COLL_HEIGHT_ABOVE;
// checks a single square for collision against the camera // checks a single square for collision against the camera
#define collCheck(dir,s1,s2)\ #define collCheck(dir,s1,s2)\
@ -1026,7 +1037,7 @@ void moveCameraWithCollision(Camera *camera, Vector2D planeOffset,
if (!dir##Collides)\ if (!dir##Collides)\
{ /* now also check for coll on the neighbouring square */ \ { /* now also check for coll on the neighbouring square */ \
int16_t dir2##Square2 = divRoundDown(corner.dir2 - dir2##Dir *\ int16_t dir2##Square2 = divRoundDown(corner.dir2 - dir2##Dir *\
camera->collisionRadius,UNITS_PER_SQUARE);\ CAMERA_COLL_RADIUS,UNITS_PER_SQUARE);\
if (dir2##Square2 != dir2##Square)\ if (dir2##Square2 != dir2##Square)\
{\ {\
if (x)\ if (x)\
@ -1066,8 +1077,8 @@ void moveCameraWithCollision(Camera *camera, Vector2D planeOffset,
#undef collCheck #undef collCheck
#undef collHandle #undef collHandle
camera->position.x = cornerNew.x - xDir * camera->collisionRadius; camera->position.x = cornerNew.x - xDir * CAMERA_COLL_RADIUS;
camera->position.y = cornerNew.y - yDir * camera->collisionRadius; camera->position.y = cornerNew.y - yDir * CAMERA_COLL_RADIUS;
} }
if (movesInPlane || heightOffset != 0) if (movesInPlane || heightOffset != 0)
@ -1082,8 +1093,8 @@ void moveCameraWithCollision(Camera *camera, Vector2D planeOffset,
ceilingHeightFunc(xSquareNew,ySquareNew) : UNIT_INFINITY; ceilingHeightFunc(xSquareNew,ySquareNew) : UNIT_INFINITY;
camera->height = clamp(camera->height, camera->height = clamp(camera->height,
floorHeightNew + camera->collisionHeightBelow, floorHeightNew + CAMERA_COLL_HEIGHT_BELOW,
ceilingHeightNew - camera->collisionHeightAbove); ceilingHeightNew - CAMERA_COLL_HEIGHT_ABOVE);
} }
} }