aboutsummaryrefslogtreecommitdiffstats
path: root/src/ft_raycasting.c
diff options
context:
space:
mode:
authorJozanLeClerc <bousset.rudy@gmail.com>2020-03-24 20:06:05 +0100
committerJozanLeClerc <bousset.rudy@gmail.com>2020-03-24 20:06:05 +0100
commitb6736a2dc2cead76bd6a619b52d2d18ac3d4029d (patch)
treeee89b6ac356cb37a7906ff157c1f1908823b9d2b /src/ft_raycasting.c
parentNorme and merge (diff)
download42-cub3d-b6736a2dc2cead76bd6a619b52d2d18ac3d4029d.tar.gz
42-cub3d-b6736a2dc2cead76bd6a619b52d2d18ac3d4029d.tar.bz2
42-cub3d-b6736a2dc2cead76bd6a619b52d2d18ac3d4029d.tar.xz
42-cub3d-b6736a2dc2cead76bd6a619b52d2d18ac3d4029d.tar.zst
42-cub3d-b6736a2dc2cead76bd6a619b52d2d18ac3d4029d.zip
Get normed
Diffstat (limited to 'src/ft_raycasting.c')
-rw-r--r--src/ft_raycasting.c207
1 files changed, 57 insertions, 150 deletions
diff --git a/src/ft_raycasting.c b/src/ft_raycasting.c
index 1804118..8a79154 100644
--- a/src/ft_raycasting.c
+++ b/src/ft_raycasting.c
@@ -18,192 +18,99 @@
#include <pthread.h>
static void
- ft_calc_tex(t_cub *cl)
+ ft_allocate_tabs(uint16_t y_s, uint16_t x_s, t_ray *rl, t_cub *cl)
{
- if (cl->rlist.side == 0)
- cl->rlist.wall_hit_x = (cl->plist.pos_x) +
- cl->rlist.wall_dist * cl->rlist.y_ray_dir;
- else
- cl->rlist.wall_hit_x = (cl->plist.pos_y) +
- cl->rlist.wall_dist * cl->rlist.x_ray_dir;
- cl->rlist.wall_hit_x -= floor(cl->rlist.wall_hit_x);
- cl->tlist[cl->w_side].tex_x = (int)(cl->rlist.wall_hit_x *
- (double)cl->tlist[cl->w_side].img_w);
- if (cl->rlist.side == 0 && cl->rlist.x_ray_dir > 0)
- cl->tlist[cl->w_side].tex_x = cl->tlist[cl->w_side].img_w
- - cl->tlist[cl->w_side].tex_x - 1;
- else if (cl->rlist.side == 1 && cl->rlist.y_ray_dir < 0)
- cl->tlist[cl->w_side].tex_x = cl->tlist[cl->w_side].img_w
- - cl->tlist[cl->w_side].tex_x - 1;
+ uint16_t y;
+ uint16_t x;
+
+ if (!(rl->wall_dist_tab = (float*)malloc(x_s * sizeof(float))) ||
+ !(rl->wall_b_tab = (int16_t*)malloc(x_s * sizeof(int16_t))) ||
+ !(rl->w_side_tab = (uint8_t*)malloc(x_s * sizeof(uint8_t))) ||
+ !(rl->line_h_tab = (uint16_t*)malloc(x_s * sizeof(uint16_t))) ||
+ !(rl->wall_t_tab = (int16_t*)malloc(x_s * sizeof(int16_t))) ||
+ !(rl->tex_x_tab = (int32_t*)malloc(x_s * sizeof(int32_t))) ||
+ !(rl->fc_tex_x_tab = (int32_t***)malloc(2 * sizeof(int32_t**))) ||
+ !(rl->fc_tex_y_tab = (int32_t***)malloc(2 * sizeof(int32_t**))) ||
+ !(rl->row_dist_tab = (float*)malloc(y_s * sizeof(float))))
+ ft_error(FT_RET_ALLOC_ERR, FT_ERR_ALLOCATE, cl);
+ x = -1;
+ while (++x < 2)
+ {
+ if (!(rl->fc_tex_x_tab[x] = (int**)malloc(y_s * sizeof(int*))) ||
+ !(rl->fc_tex_y_tab[x] = (int**)malloc(y_s * sizeof(int*))))
+ ft_error(FT_RET_ALLOC_ERR, FT_ERR_ALLOCATE, cl);
+ y = -1;
+ while (++y < y_s)
+ if (!(rl->fc_tex_x_tab[x][y] = (int*)malloc(x_s * sizeof(int))) ||
+ !(rl->fc_tex_y_tab[x][y] = (int*)malloc(x_s * sizeof(int))))
+ ft_error(FT_RET_ALLOC_ERR, FT_ERR_ALLOCATE, cl);
+ }
}
static void
- ft_initray(uint16_t i, t_cub *cl)
+ ft_precalc_loops(t_cub *cl)
{
- t_win *wl;
- t_player *pl;
+ uint16_t i;
- wl = &cl->wlist;
- pl = &cl->plist;
- pl->cam_x = 2 * i / (float)(wl->x_size) - 1;
- cl->rlist.x_ray_pos = pl->pos_y;
- cl->rlist.y_ray_pos = pl->pos_x;
- cl->rlist.x_ray_dir = pl->dir_x + pl->plane_x *
- pl->cam_x;
- cl->rlist.y_ray_dir = pl->dir_y + pl->plane_y *
- pl->cam_x;
- cl->rlist.sqx = (int16_t)cl->rlist.x_ray_pos;
- cl->rlist.sqy = (int16_t)cl->rlist.y_ray_pos;
- ft_detect(cl);
- if (cl->rlist.side == 0)
+ i = 0;
+ while (i < cl->wlist.x_size)
{
- cl->rlist.wall_dist = (cl->rlist.sqx - cl->rlist.x_ray_pos +
- (1 - cl->mlist.x_step) / 2) / cl->rlist.x_ray_dir;
+ ft_castray_loop(i, &cl->wlist, cl);
+ i++;
}
- else
+ i = (cl->wlist.y_size / 2);
+ while (i < cl->wlist.y_size)
{
- cl->rlist.wall_dist = (cl->rlist.sqy - cl->rlist.y_ray_pos +
- (1 - cl->mlist.y_step) / 2) / cl->rlist.y_ray_dir;
+ ft_floor_loop(i, cl);
+ i++;
}
}
static void
- ft_castray_loop(uint16_t i, t_win *wl, t_cub *cl)
-{
- ft_initray(i, cl);
- cl->rlist.line_h = (int16_t)(wl->y_size / cl->rlist.wall_dist);
- cl->rlist.wall_t = -cl->rlist.line_h / 2 + wl->y_size / 2;
- if (cl->rlist.wall_t < 0)
- cl->rlist.wall_t = 0;
- cl->rlist.wall_b = cl->rlist.line_h / 2 + wl->y_size / 2;
- if (cl->rlist.wall_b >= (int16_t)wl->y_size)
- cl->rlist.wall_b = wl->y_size - 1;
- ft_choose_tex(i, cl);
- ft_calc_tex(cl);
- cl->rlist.tex_x_tab[i] = cl->tlist[cl->w_side].tex_x;
- cl->rlist.line_h_tab[i] = cl->rlist.line_h;
- cl->rlist.wall_t_tab[i] = cl->rlist.wall_t;
- cl->rlist.wall_bz[i] = cl->rlist.wall_b;
- cl->rlist.wall_dist_tab[i] = cl->rlist.wall_dist;
-}
-
-static void
- ft_set_fc_tex_xy(uint8_t tid, uint16_t x, uint16_t y, t_cub *cl)
+ ft_del_tabs(t_cub *cl)
{
- const int32_t x_cell = (int32_t)(cl->rlist.x_floor);
- const int32_t y_cell = (int32_t)(cl->rlist.y_floor);
-
- cl->tlist[tid].tex_x = (int32_t)(cl->tlist[tid].img_h
- * (cl->rlist.y_floor - y_cell));
- cl->tlist[tid].tex_y = (int32_t)(cl->tlist[tid].img_w
- * (cl->rlist.x_floor - x_cell));
- cl->rlist.fc_tex_x_tab[tid - 6][y][x] = cl->tlist[tid].tex_x;
- cl->rlist.fc_tex_y_tab[tid - 6][y][x] = cl->tlist[tid].tex_y;
-}
-
-void
- ft_castray(t_cub *cl)
-{
- pthread_t tid[2];
uint16_t y;
uint16_t x;
- if (!(cl->rlist.wall_dist_tab = (float*)malloc(cl->wlist.x_size *
- sizeof(float))) ||
- !(cl->rlist.wall_bz = (int16_t*)malloc(cl->wlist.x_size *
- sizeof(int16_t))) ||
- !(cl->rlist.w_side_tab = (uint8_t*)malloc(cl->wlist.x_size *
- sizeof(uint8_t))) ||
- !(cl->rlist.line_h_tab = (uint16_t*)malloc(cl->wlist.x_size *
- sizeof(uint16_t))) ||
- !(cl->rlist.wall_t_tab = (int16_t*)malloc(cl->wlist.x_size *
- sizeof(int16_t))) ||
- !(cl->rlist.tex_x_tab = (int32_t*)malloc(cl->wlist.x_size *
- sizeof(int32_t))) ||
- !(cl->rlist.fc_tex_x_tab = (int32_t***)malloc(2 * sizeof(int32_t**))) ||
- !(cl->rlist.fc_tex_y_tab = (int32_t***)malloc(2 * sizeof(int32_t**))) ||
- !(cl->rlist.row_dist_tab = (float*)malloc(cl->wlist.y_size *
- sizeof(float))))
- ft_error(FT_RET_ALLOC_ERR, FT_ERR_ALLOCATE, cl);
- x = 0;
- while (x < 2)
+ x = -1;
+ while (++x < 2)
{
- if (!(cl->rlist.fc_tex_x_tab[x] = (int**)malloc(cl->wlist.y_size *
- sizeof(int*))) ||
- !(cl->rlist.fc_tex_y_tab[x] = (int**)malloc(cl->wlist.y_size *
- sizeof(int*))))
- ft_error(FT_RET_ALLOC_ERR, FT_ERR_ALLOCATE, cl);
- y = 0;
- while (y < cl->wlist.y_size)
- {
- if (!(cl->rlist.fc_tex_x_tab[x][y] = (int*)malloc(cl->wlist.x_size *
- sizeof(int))) ||
- !(cl->rlist.fc_tex_y_tab[x][y] = (int*)malloc(cl->wlist.x_size *
- sizeof(int))))
- ft_error(FT_RET_ALLOC_ERR, FT_ERR_ALLOCATE, cl);
- y++;
- }
- x++;
- }
- x = 0;
- while (x < cl->wlist.x_size)
- {
- ft_castray_loop(x, &cl->wlist, cl);
- x++;
- }
- y = cl->wlist.y_size / 2;
- while (y < cl->wlist.y_size)
- {
- x = 0;
- ft_floor_cast_inits(y, &cl->rlist, cl);
- while (x < cl->wlist.x_size)
- {
- if (cl->rlist.wall_bz[x] <= y)
- {
- if (cl->mlist.isftex)
- ft_set_fc_tex_xy(6, x, y, cl);
- if (cl->mlist.isctex && !cl->mlist.isskybox)
- ft_set_fc_tex_xy(7, x, cl->wlist.y_size - y - 1, cl);
- }
- cl->rlist.x_floor += cl->mlist.x_floor_step;
- cl->rlist.y_floor += cl->mlist.y_floor_step;
- x++;
- }
- cl->rlist.row_dist_tab[y] = cl->rlist.row_dist;
- cl->rlist.row_dist_tab[cl->wlist.y_size - y] = cl->rlist.row_dist;
- y++;
- }
- pthread_create(&tid[0], 0x0, ft_wall_cast, (void*)cl);
- pthread_create(&tid[1], 0x0, ft_floor_cast, (void*)cl);
- pthread_join(tid[0], 0x0);
- pthread_join(tid[1], 0x0);
- x = 0;
- while (x < 2)
- {
- y = 0;
- while (y < cl->wlist.y_size)
+ y = -1;
+ while (++y < cl->wlist.y_size)
{
ft_memdel((void*)&cl->rlist.fc_tex_x_tab[x][y]);
ft_memdel((void*)&cl->rlist.fc_tex_y_tab[x][y]);
- y++;
}
ft_memdel((void*)&cl->rlist.fc_tex_x_tab[x]);
ft_memdel((void*)&cl->rlist.fc_tex_y_tab[x]);
- x++;
}
ft_memdel((void*)&cl->rlist.fc_tex_x_tab);
ft_memdel((void*)&cl->rlist.fc_tex_y_tab);
ft_memdel((void*)&cl->rlist.tex_x_tab);
ft_memdel((void*)&cl->rlist.row_dist_tab);
ft_memdel((void*)&cl->rlist.wall_t_tab);
+ ft_memdel((void*)&cl->rlist.wall_b_tab);
ft_memdel((void*)&cl->rlist.w_side_tab);
ft_memdel((void*)&cl->rlist.line_h_tab);
- ft_memdel((void*)&cl->rlist.wall_bz);
+ ft_memdel((void*)&cl->rlist.wall_dist_tab);
+}
+
+void
+ ft_castray(t_cub *cl)
+{
+ pthread_t tid[2];
+
+ ft_allocate_tabs(cl->wlist.y_size, cl->wlist.x_size, &cl->rlist, cl);
+ ft_precalc_loops(cl);
+ pthread_create(&tid[0], 0x0, ft_wall_cast, (void*)cl);
+ pthread_create(&tid[1], 0x0, ft_floor_cast, (void*)cl);
+ pthread_join(tid[0], 0x0);
+ pthread_join(tid[1], 0x0);
ft_calc_sprite(cl);
ft_calc_heal(cl);
ft_calc_trap(cl);
ft_calc_weaps(cl);
if (cl->plist.handles_weapon > -1)
ft_draw_handweap(cl);
- ft_memdel((void*)&cl->rlist.wall_dist_tab);
+ ft_del_tabs(cl);
}