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temp test other way of writting ray end calcul

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hugogogo
2022-04-23 12:55:10 +02:00
parent e9b0dd7ec9
commit 9359e87f6f
1 changed files with 38 additions and 0 deletions
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38
srcs/draw/ray_intersect.c
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@@ -60,6 +60,7 @@ static void next_cell(t_rcast *rcast)
static void calcul_ray_end(t_rcast *rcast, t_vec *ray) static void calcul_ray_end(t_rcast *rcast, t_vec *ray)
{ {
/*
if (rcast->is_x) if (rcast->is_x)
{ {
ray->end.x = rcast->cell_x * rcast->cell; ray->end.x = rcast->cell_x * rcast->cell;
@@ -82,6 +83,43 @@ static void calcul_ray_end(t_rcast *rcast, t_vec *ray)
ray->end.x = ray->start.x + (double)rcast->slope_x * rcast->ratio; ray->end.x = ray->start.x + (double)rcast->slope_x * rcast->ratio;
} }
} }
*/
int *nd1;
int *cell1;
int *sign1;
int *st1;
int *slp1;
int *nd2;
int *st2;
int *slp2;
if (rcast->is_x)
{
nd1 = &(ray->end.x);
cell1 = &(rcast->cell_x);
sign1 = &(rcast->ray_sign_x);
st1 = &(ray->start.x);
slp1 = &(rcast->slope_x);
nd2 = &(ray->end.y);
st2 = &(ray->start.y);
slp2 = &(rcast->slope_y);
}
else
{
nd1 = &(ray->end.y);
cell1 = &(rcast->cell_y);
sign1 = &(rcast->ray_sign_y);
st1 = &(ray->start.y);
slp1 = &(rcast->slope_y);
nd2 = &(ray->end.x);
st2 = &(ray->start.x);
slp2 = &(rcast->slope_x);
}
*nd1 = *cell1 * rcast->cell;
if (*sign1 == 1)
*nd1 += rcast->cell;
if (*slp1)
*nd2 = *st2 + (double)(*slp2) * (double)(*nd1 - *st1) / (double)(*slp1);
} }
void ray_intersect(t_game *game, t_rcast *rcast, t_vec *ray) void ray_intersect(t_game *game, t_rcast *rcast, t_vec *ray)