1 files changed, 0 insertions, 94 deletions
diff --git a/src/fov.c b/src/fov.c
deleted file mode 100644
index 3d5ae16..0000000
--- a/src/fov.c
+++ /dev/null
@@ -1,94 +0,0 @@
-#include <engine/fov.h>
-#include <engine/utils.h>
-#include <math.h>
-#include <stdint.h>
-
-void fov_shadowcast_rec(const void* map, const v2_i32 mapsize,
-                        bool (*visblocking)(const void*), i32* lightmap,
-                        const i32 range, v2_i32 src, const i32 row, f32 start,
-                        const f32 end, const i8 xx, const i8 xy, const i8 yx,
-                        const i8 yy) {
-
-  if (start < end) return;
-
-  const i32 range_2 = range * range;
-  f32 new_start = start;
-
-  for (i32 i = row; i <= range; i++) {
-    i32 dx = (-1 * i) - 1;
-    i32 dy = -1 * i;
-
-    bool blocked = false;
-
-    while (dx <= 0) {
-      dx += 1;
-
-      const i32 mapx = src.x + dx * xx + dy * xy;
-      const i32 mapy = src.y + dx * yx + dy * yy;
-
-      const f32 slope_l = (((f32)dx) - 0.5f) / (((f32)dy) + 0.5f);
-      const f32 slope_r = (((f32)dx) + 0.5f) / (((f32)dy) - 0.5f);
-
-      if (start < slope_r) continue;
-      if (end > slope_l) break;
-
-      if (dx * dx + dy * dy < range_2) {
-        /* set as visible */
-        if (mapx >= 0 && mapx < (long)mapsize.x && mapy >= 0 &&
-            mapy < (long)mapsize.y) {
-          // TODO: Calculate proper dist from source
-          f32 x_2 = (src.x - mapx) * (src.x - mapx);
-          f32 y_2 = (src.y - mapy) * (src.y - mapy);
-          lightmap[mapy * mapsize.x + mapx] =
-              MAX(lightmap[mapy * mapsize.x + mapx],
-                  range - sqrt((f32)(x_2 + y_2)));
-        }
-      }
-
-      /* sizeof(i32) is the size of enums */
-      /* -- unless the compiler doesn't follow standard behaviour */
-      const bool is_blocked = visblocking(
-          (void*)((u64)map + sizeof(i32)                     /* ~ enum size */
-                                 * (mapsize.x * mapy + mapx) /* index */
-                  ));
-
-      if (blocked) {
-        if (!is_blocked) {
-          new_start = slope_r;
-        } else {
-          blocked = false;
-          start = new_start;
-        }
-      } else if (!is_blocked && i < range) {
-        blocked = true;
-        fov_shadowcast_rec(map, mapsize, visblocking, lightmap, range, src,
-                           i + 1, start, slope_l, xx, xy, yx, yy);
-        new_start = slope_r;
-      }
-    }
-
-    if (blocked) break;
-  }
-}
-
-/* http://www.roguebasin.com/index.php?title=FOV_using_recursive_shadowcasting
- */
-void fov_shadowcast(const void* map, const v2_i32 mapsize,
-                    bool (*visblocking)(const void*), i32* lightmap,
-                    const i32 range, const v2_i32 src) {
-
-  const i8 m[4][8] = {
-      {1, 0, 0, -1, -1, 0, 0, 1},
-      {0, 1, -1, 0, 0, -1, 1, 0},
-      {0, 1, 1, 0, 0, -1, -1, 0},
-      {1, 0, 0, 1, -1, 0, 0, -1},
-  };
-
-  for (i32 oct = 0; oct < 8; oct++) {
-    fov_shadowcast_rec(map, mapsize, visblocking, lightmap, range, src, 1, 1.0,
-                       0.0, m[0][oct], m[1][oct], m[2][oct], m[3][oct]);
-  }
-
-  /* The center is the most lit square */
-  lightmap[src.y * mapsize.x + src.x] = range;
-}