in practice chapter

1 files changed, 24 insertions, 0 deletions

diff --git a/in_practice/breakout/ball.c b/in_practice/breakout/ball.c
new file mode 100644
index 0000000..9aa42a2
--- /dev/null
+++ b/in_practice/breakout/ball.c
@@ -0,0 +1,24 @@
+#include "ball.h"
+
+void move_ball(ball_t *ball, f32 dt, i32 width)
+{
+	if (ball->stuck) 
+		return;
+	ball->o.pos = add_v2(ball->o.pos, scale_v2(ball->o.vel, dt));
+	if (ball->o.pos.x < 0.0f) {
+		ball->o.vel.x = -ball->o.vel.x;
+		ball->o.pos.x = 0.0f;
+	}
+	if (ball->o.pos.x + ball->o.size.x > width) {
+		ball->o.vel.x = -ball->o.vel.x;
+		ball->o.pos.x = width - ball->o.size.x;
+	}
+	if (ball->o.pos.y < 0.0f) {
+		ball->o.vel.y = -ball->o.vel.y;
+		ball->o.pos.y = 0.0f;
+	}
+}
+	
+void reset_ball(ball_t *ball, v2 pos, v2 vel)
+{
+}