Merge branch 'sprites'

1 files changed, 41 insertions, 0 deletions

diff --git a/src/ft_draw_sprite.c b/src/ft_draw_sprite.c
new file mode 100644
index 0000000..c90c9ac
--- /dev/null
+++ b/src/ft_draw_sprite.c
@@ -0,0 +1,41 @@
+#include <libft.h>
+#include <cub3d.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <math.h>
+
+void
+ft_draw_verline_sprite(t_cub *cl, int x, int y, int tex_y)
+{
+  if (cl->tlist[4].tex_x)
+    cl->img.ptr[x * 4 + (cl->img.sizeline * y)] =
+      (char)cl->tlist[4].ptr[cl->tlist[4].tex_x * 4 + 4 *
+                             cl->tlist[4].img_h * tex_y];
+    cl->img.ptr[x * 4 + (cl->img.sizeline * y) + 1] =
+      (char)cl->tlist[4].ptr[cl->tlist[4].tex_x * 4 + 4 *
+                             cl->tlist[4].img_h * tex_y + 1];
+    cl->img.ptr[x * 4 + (cl->img.sizeline * y) + 2] =
+      (char)cl->tlist[4].ptr[cl->tlist[4].tex_x * 4 + 4 *
+      cl->tlist[4].img_h * tex_y + 2];
+    cl->img.ptr[x * 4 + cl->wlist->x_size * y + 3] = (char)0;
+}
+
+void
+  ft_draw_sprite(t_cub *cl, int x)
+{
+  int hor_it;/*y*/
+  int d;
+  int tex_y;
+
+  hor_it = cl->sp_list.s_start_y;
+  while (hor_it < cl->sp_list.s_end_y)
+  {
+    d = hor_it * 256 - cl->wlist->y_size * 128 + cl->rlist.line_h * 128;
+    d = (d <= 0) ? (-d) : (d);
+    tex_y = ((d * cl->tlist[4].img_h) / cl->rlist.line_h) / 256;
+    (tex_y < 0) ? (tex_y = 0) : 0;
+    ft_draw_verline_sprite(cl, x, hor_it, tex_y);
+    hor_it++;
+  }
+}