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for (int y = y1; y <= y2; y++) {
// collide with map
if (OUTBORD(x, y))
return false;
struct sqr *s = S(x, y);
float ceil = s->ceil;
float floor = s->floor;
switch (s->type) {
case SOLID:
return false;
if (x == x1 && y == y1 &&
cornertest(
0, x, y, -1, -1, &bx, &by, &bs) &&
fx1 - bx + fy1 - by <= bs ||
x == x2 && y == y1 &&
cornertest(
0, x, y, 1, -1, &bx, &by, &bs) &&
fx2 - bx >= fy1 - by ||
x == x1 && y == y2 &&
cornertest(
0, x, y, -1, 1, &bx, &by, &bs) &&
fx1 - bx <= fy2 - by ||
x == x2 && y == y2 &&
cornertest(
0, x, y, 1, 1, &bx, &by, &bs) &&
fx2 - bx + fy2 - by >= bs)
return false;
break;
}
case FHF: // FIXME: too simplistic collision with
// slopes, makes it feels like tiny stairs
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for (int y = y1; y <= y2; y++) {
// collide with map
if (OUTBORD(x, y))
return false;
struct sqr *s = S(x, y);
float ceil = s->ceil;
float floor = s->floor;
switch (s->type) {
case SOLID:
return false;
case CORNER: {
int bx = x, by = y, bs = 1;
if ((x == x1 && y == y1 &&
cornertest(
0, x, y, -1, -1, &bx, &by, &bs) &&
fx1 - bx + fy1 - by <= bs) ||
(x == x2 && y == y1 &&
cornertest(
0, x, y, 1, -1, &bx, &by, &bs) &&
fx2 - bx >= fy1 - by) ||
(x == x1 && y == y2 &&
cornertest(
0, x, y, -1, 1, &bx, &by, &bs) &&
fx1 - bx <= fy2 - by) ||
(x == x2 && y == y2 &&
cornertest(
0, x, y, 1, 1, &bx, &by, &bs) &&
fx2 - bx + fy2 - by >= bs))
return false;
break;
}
// FIXME: too simplistic collision with slopes, makes
// it feels like tiny stairs
case FHF:
floor -= (s->vdelta + S(x + 1, y)->vdelta +
S(x, y + 1)->vdelta +
S(x + 1, y + 1)->vdelta) /
16.0f;
break;
case CHF:
ceil += (s->vdelta + S(x + 1, y)->vdelta +
S(x, y + 1)->vdelta +
S(x + 1, y + 1)->vdelta) /
16.0f;
}
if (ceil < hi)
hi = ceil;
if (floor > lo)
lo = floor;
if (floor < minfloor)
return false;
}
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