diff options
Diffstat (limited to 'ai_shared.c')
| -rw-r--r-- | ai_shared.c | 82 |
1 files changed, 82 insertions, 0 deletions
diff --git a/ai_shared.c b/ai_shared.c new file mode 100644 index 000000000..192651c82 --- /dev/null +++ b/ai_shared.c @@ -0,0 +1,82 @@ +#include "stdafx.h"
+#include "ttd.h"
+#include "player.h"
+#include "ai.h"
+
+int AiNew_GetRailDirection(uint tile_a, uint tile_b, uint tile_c) {
+ // 0 = vert
+ // 1 = horz
+ // 2 = dig up-left
+ // 3 = dig down-right
+ // 4 = dig down-left
+ // 5 = dig up-right
+
+ int x1, x2, x3;
+ int y1, y2, y3;
+
+ x1 = GET_TILE_X(tile_a);
+ x2 = GET_TILE_X(tile_b);
+ x3 = GET_TILE_X(tile_c);
+
+ y1 = GET_TILE_Y(tile_a);
+ y2 = GET_TILE_Y(tile_b);
+ y3 = GET_TILE_Y(tile_c);
+
+ if (y1 == y2 && y2 == y3) return 0;
+ if (x1 == x2 && x2 == x3) return 1;
+ if (y2 > y1) {
+ if (x2 > x3) return 2;
+ else return 4;
+ }
+ if (x2 > x1) {
+ if (y2 > y3) return 2;
+ else return 5;
+ }
+ if (y1 > y2) {
+ if (x2 > x3) return 5;
+ else return 3;
+ }
+ if (x1 > x2) {
+ if (y2 > y3) return 4;
+ else return 3;
+ }
+
+ return 0;
+}
+
+int AiNew_GetRoadDirection(uint tile_a, uint tile_b, uint tile_c) {
+ int x1, x2, x3;
+ int y1, y2, y3;
+ int r;
+
+ x1 = GET_TILE_X(tile_a);
+ x2 = GET_TILE_X(tile_b);
+ x3 = GET_TILE_X(tile_c);
+
+ y1 = GET_TILE_Y(tile_a);
+ y2 = GET_TILE_Y(tile_b);
+ y3 = GET_TILE_Y(tile_c);
+
+ r = 0;
+
+ if (x1 < x2) r += 8;
+ if (y1 < y2) r += 1;
+ if (x1 > x2) r += 2;
+ if (y1 > y2) r += 4;
+
+ if (x2 < x3) r += 2;
+ if (y2 < y3) r += 4;
+ if (x2 > x3) r += 8;
+ if (y2 > y3) r += 1;
+
+ return r;
+}
+
+// Get's the direction between 2 tiles seen from tile_a
+int AiNew_GetDirection(uint tile_a, uint tile_b) {
+ if (GET_TILE_Y(tile_a) < GET_TILE_Y(tile_b)) return 1;
+ if (GET_TILE_Y(tile_a) > GET_TILE_Y(tile_b)) return 3;
+ if (GET_TILE_X(tile_a) < GET_TILE_X(tile_b)) return 2;
+ return 0;
+}
+
|