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-rw-r--r--src/ft_wall_cast.c199
1 files changed, 199 insertions, 0 deletions
diff --git a/src/ft_wall_cast.c b/src/ft_wall_cast.c
new file mode 100644
index 0000000..b10d2a6
--- /dev/null
+++ b/src/ft_wall_cast.c
@@ -0,0 +1,199 @@
+/* ************************************************************************** */
+/* */
+/* ::: :::::::: */
+/* ft_wall_cast.c :+: :+: :+: */
+/* +:+ +:+ +:+ */
+/* By: rbousset <marvin@42.fr> +#+ +:+ +#+ */
+/* +#+#+#+#+#+ +#+ */
+/* Created: 2020/02/14 17:22:23 by rbousset #+# #+# */
+/* Updated: 2020/02/14 17:23:42 by rbousset ### ########lyon.fr */
+/* */
+/* ************************************************************************** */
+
+#include <cub3d.h>
+#include <stdint.h>
+#include <pthread.h>
+
+static void
+ ft_draw_verline(t_cub *cl, int32_t x, int32_t y, int32_t y2)
+{
+ int32_t d;
+ int32_t tex_y;
+
+ (y < 0) ? (y = 0) : 0;
+ (y2 < 0) ? (y2 = 0) : 0;
+ (cl->rlist.line_h_tab[x] <= 0) ? (cl->rlist.line_h_tab[x] = 1) : 0;
+ while (y < y2)
+ {
+ d = y * 256 - cl->wlist.y_size * 128 + cl->rlist.line_h_tab[x] * 128;
+ d = (d <= 0) ? (-d) : (d);
+ tex_y = ((d * cl->tlist[cl->rlist.w_side_tab[x]].img_h)
+ / cl->rlist.line_h_tab[x]) / 256;
+ (tex_y <= 0) ? (tex_y = 1) : 0;
+ ft_draw_texture(cl, x, y, tex_y);
+ y++;
+ }
+}
+
+static void
+*ft_wall_one(void *vargp)
+{
+ t_cub *cl;
+ uint16_t i;
+
+ cl = (t_cub *)vargp;
+ i = 0;
+ while (i < cl->wlist.x_size / 8)
+ {
+ ft_draw_verline(cl, i, cl->rlist.wall_t_tab[i], cl->rlist.wall_bz[i]);
+ i++;
+ }
+ pthread_exit(0x0);
+ return (0x0);
+}
+
+static void
+*ft_wall_two(void *vargp)
+{
+ t_cub *cl;
+ uint16_t i;
+
+ cl = (t_cub *)vargp;
+ i = cl->wlist.x_size / 8;
+ while (i < 2 * (cl->wlist.x_size / 8))
+ {
+ ft_draw_verline(cl, i, cl->rlist.wall_t_tab[i], cl->rlist.wall_bz[i]);
+ i++;
+ }
+ pthread_exit(0x0);
+ return (0x0);
+}
+
+static void
+*ft_wall_three(void *vargp)
+{
+ t_cub *cl;
+ uint16_t i;
+
+ cl = (t_cub *)vargp;
+ i = 2 * (cl->wlist.x_size / 8);
+ while (i < 3 * (cl->wlist.x_size / 8))
+ {
+ ft_draw_verline(cl, i, cl->rlist.wall_t_tab[i], cl->rlist.wall_bz[i]);
+ i++;
+ }
+ pthread_exit(0x0);
+ return (0x0);
+}
+
+static void
+*ft_wall_four(void *vargp)
+{
+ t_cub *cl;
+ uint16_t i;
+
+ cl = (t_cub *)vargp;
+ i = 3 * (cl->wlist.x_size / 8);
+ while (i < 4 * (cl->wlist.x_size / 8))
+ {
+ ft_draw_verline(cl, i, cl->rlist.wall_t_tab[i], cl->rlist.wall_bz[i]);
+ i++;
+ }
+ pthread_exit(0x0);
+ return (0x0);
+}
+
+static void
+*ft_wall_five(void *vargp)
+{
+ t_cub *cl;
+ uint16_t i;
+
+ cl = (t_cub *)vargp;
+ i = 4 * (cl->wlist.x_size / 8);
+ while (i < 5 * (cl->wlist.x_size / 8))
+ {
+ ft_draw_verline(cl, i, cl->rlist.wall_t_tab[i], cl->rlist.wall_bz[i]);
+ i++;
+ }
+ pthread_exit(0x0);
+ return (0x0);
+}
+
+static void
+*ft_wall_six(void *vargp)
+{
+ t_cub *cl;
+ uint16_t i;
+
+ cl = (t_cub *)vargp;
+ i = 5 * (cl->wlist.x_size / 8);
+ while (i < 6 * (cl->wlist.x_size / 8))
+ {
+ ft_draw_verline(cl, i, cl->rlist.wall_t_tab[i], cl->rlist.wall_bz[i]);
+ i++;
+ }
+ pthread_exit(0x0);
+ return (0x0);
+}
+
+static void
+*ft_wall_seven(void *vargp)
+{
+ t_cub *cl;
+ uint16_t i;
+
+ cl = (t_cub *)vargp;
+ i = 6 * (cl->wlist.x_size / 8);
+ while (i < 7 * (cl->wlist.x_size / 8))
+ {
+ ft_draw_verline(cl, i, cl->rlist.wall_t_tab[i], cl->rlist.wall_bz[i]);
+ i++;
+ }
+ pthread_exit(0x0);
+ return (0x0);
+}
+
+static void
+*ft_wall_eight(void *vargp)
+{
+ t_cub *cl;
+ uint16_t i;
+
+ cl = (t_cub *)vargp;
+ i = 7 * (cl->wlist.x_size / 8);
+ while (i < cl->wlist.x_size)
+ {
+ ft_draw_verline(cl, i, cl->rlist.wall_t_tab[i], cl->rlist.wall_bz[i]);
+ i++;
+ }
+ pthread_exit(0x0);
+ return (0x0);
+}
+
+void
+ *ft_wall_cast(void *vargp)
+{
+ pthread_t tid[8];
+ t_cub *cl;
+
+ cl = (t_cub *)vargp;
+ pthread_create(&tid[0], 0x0, ft_wall_one, (void*)cl);
+ pthread_create(&tid[1], 0x0, ft_wall_two, (void*)cl);
+ pthread_create(&tid[2], 0x0, ft_wall_three, (void*)cl);
+ pthread_create(&tid[3], 0x0, ft_wall_four, (void*)cl);
+ pthread_create(&tid[4], 0x0, ft_wall_five, (void*)cl);
+ pthread_create(&tid[5], 0x0, ft_wall_six, (void*)cl);
+ pthread_create(&tid[6], 0x0, ft_wall_seven, (void*)cl);
+ pthread_create(&tid[7], 0x0, ft_wall_eight, (void*)cl);
+ pthread_join(tid[0], 0x0);
+ pthread_join(tid[1], 0x0);
+ pthread_join(tid[2], 0x0);
+ pthread_join(tid[3], 0x0);
+ pthread_join(tid[4], 0x0);
+ pthread_join(tid[5], 0x0);
+ pthread_join(tid[6], 0x0);
+ pthread_join(tid[7], 0x0);
+ pthread_exit(0x0);
+ return (0x0);
+}