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Improve movement

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This commit is contained in:
Miloslav Číž 2018-09-07 16:42:55 +02:00
parent 04b9c42e0a
commit 1607d8bb16
1 changed files with 40 additions and 14 deletions
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54
raycastlib.h
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@ -961,7 +961,7 @@ void moveCameraWithCollision(Camera *camera, Vector2D planeOffset,
{
// TODO: have the cam coll parameters precomputed as macros? => faster
Vector2D corner; // we're only interested in the corner of the BBox
Vector2D corner; // BBox corner in the movement direction
Vector2D cornerNew;
int16_t xDir = planeOffset.x > 0 ? 1 : (planeOffset.x < 0 ? -1 : 0);
@ -982,33 +982,59 @@ void moveCameraWithCollision(Camera *camera, Vector2D planeOffset,
Unit bottomLimit = camera->height - camera->collisionHeightBelow;
Unit topLimit = camera->height + camera->collisionHeightAbove;
int8_t xCollides;
int8_t yCollides;
#define collideHelper(dir,s1,s2)\
if (dir##Square != dir##SquareNew)\
#define collCheck(dir,s1,s2)\
{\
Unit height = floorHeightFunc(xSquare##s1,ySquare##s2);\
Unit height = floorHeightFunc(s1,s2);\
if (height > bottomLimit)\
dir##Collides = true;\
else if (ceilingHeightFunc != 0)\
{\
height = ceilingHeightFunc(xSquare##s1,ySquare##s2);\
height = ceilingHeightFunc(s1,s2);\
if (height < topLimit)\
dir##Collides = true;\
}\
}\
else\
dir##Collides = false;\
\
#define collCheckOrtho(dir,dir2,s1,s2)\
if (dir##SquareNew != dir##Square)\
collCheck(dir,s1,s2)\
if (!dir##Collides)\
{\
int16_t dir2##Square2 = divRoundDown(corner.dir2 - dir2##Dir *\
camera->collisionRadius,UNITS_PER_SQUARE);\
if (dir2##Square2 != dir2##Square)\
collCheck(dir,dir2##Square2,dir##SquareNew)\
}
int8_t xCollides = false;
collCheckOrtho(x,y,xSquareNew,ySquare)
int8_t yCollides = false;
collCheckOrtho(y,x,xSquare,ySquareNew)
#define collHandle(dir)\
if (dir##Collides)\
cornerNew.dir = (dir##Square) * UNITS_PER_SQUARE + UNITS_PER_SQUARE / 2 +\
dir##Dir * (UNITS_PER_SQUARE / 2) - dir##Dir;\
collideHelper(x,New,)
collideHelper(y,,New)
collHandle(x)
collHandle(y)
#undef collideHelper
if (!xCollides && !yCollides) /* if collision happend by now, corner
collision can't happen */
{
if (xSquare != xSquareNew && ySquare != ySquareNew) // corner?
{
int8_t xyCollides = false;
collCheck(xy,xSquareNew,ySquareNew)
if (xyCollides)
cornerNew = corner;
}
}
#undef collCheck
#undef collHandle
camera->position.x = cornerNew.x - xDir * camera->collisionRadius;
camera->position.y = cornerNew.y - yDir * camera->collisionRadius;