ball: Don't collide spinning balls with others

1 files changed, 9 insertions, 5 deletions

diff --git a/src/ball.c b/src/ball.c
index ccdccec..d7941b9 100644
--- a/src/ball.c
+++ b/src/ball.c
@@ -102,11 +102,15 @@ db_balls_collisions(struct db_ball *ball)
 	int             col_x;
 	int             col_y;
 
-	for (other = ball->next; other != NULL; other = other->next) {
-		if (db_col_pt_cir_cir(ball->x, ball->y, ball->r,
-					other->x, other->y, other->r,
-					&col_x, &col_y)) {
-			/* TODO: Reverse direction */
+	/* Spinning balls shouldn't collide with any other balls */
+	if (ball->sr == 0) {
+		for (other = ball->next; other != NULL; other = other->next) {
+			if (other->sr == 0 && db_col_pt_cir_cir(
+						 ball->x,  ball->y,  ball->r,
+						other->x, other->y, other->r,
+						&col_x, &col_y)) {
+				/* TODO: Reverse direction */
+			}
 		}
 	}