Updated to track score, serve and reset.

src/entity_ball.odin

@@ -1,31 +1,85 @@
 package game
 
+import "core:math/rand"
+import "core:log"
 import rl "vendor:raylib"
 
 init_ball :: proc() -> Entity {
-	ball_radius: f32 = 25
-
 	return Entity{
 		type   = .Ball,
 		active = true,
-		pos	   = rl.Vector2{(VIEWPORT_WIDTH / 2), (VIEWPORT_HEIGHT / 2) - (ball_radius / 2)},
-		vel    = rl.Vector2{400,0},
+		pos	   = rl.Vector2{(VIEWPORT_W / 2), (VIEWPORT_H / 2)},
+		speed  = 500,
+		vel    = rl.Vector2{0,0},
 		shape  = .Circle,
 		size = rl.Vector2{15, 15}
 	}	
 }
 
-update_ball :: proc(ball: ^Entity, field_bounds: rl.Rectangle, dt: f32) {
+serve_ball :: proc(ball: ^Entity) {
+    // Randomize initial direction: -1.0 or 1.0
+    dir_x := f32(rand.float32() > 0.5 ? 1 : -1)
+    dir_y := rand.choice([]f32{-0.1, 0.1}) // Slightly angled launch
+    ball.vel = rl.Vector2Normalize({dir_x, dir_y}) * ball.speed
+}
+
+reset_ball :: proc(ball: ^Entity) {
+    ball.pos = rl.Vector2{(VIEWPORT_W / 2), (VIEWPORT_H / 2)}
+    ball.vel = rl.Vector2{0,0}
+}
+
+update_ball :: proc(ball: ^Entity, level: ^Level, dt: f32) {
+    // first check the level timer are we waiting to serve?
+   if level.serve_timer > 0 {
+        level.serve_timer -= dt
+        if level.serve_timer <= 0 {
+            serve_ball(ball) 
+        } 
+
+        // return early if timer still ticking
+        return
+   } 
+
+    // serve_ball(ball)
     ball.pos += ball.vel * dt
+    radius := ball.size.x
+    field_bounds := level.field_bounds
+
+    // paddle collisions detection (player then enemy)
+    if check_ball_paddle_collision(ball^, level.player) {
+        ball.vel.x = abs(ball.vel.x) 
+        // stp stickiness
+        ball.pos.x = level.player.pos.x + level.player.size.x + radius 
+    } else if check_ball_paddle_collision(ball^, level.enemy) {
+        ball.vel.x = -abs(ball.vel.x)
+        ball.pos.x = level.enemy.pos.x - radius
+    }
+
+    // bounds collision detection
+    if ball.pos.y >= (field_bounds.y + field_bounds.height) - ball.size.x { ball.vel.y = -ball.vel.y }
+    if ball.pos.y <= field_bounds.y + ball.size.x { ball.vel.y = -ball.vel.y } 
 
     if ball.pos.x >= (field_bounds.x + field_bounds.width) - ball.size.x { 
-		ball.vel.x = -ball.vel.x
+        level.score_player += 1
+        reset_ball(ball)
+        level.serve_timer = level.wait_time
     }
 
     if ball.pos.x <= field_bounds.x + ball.size.x { 
-		ball.vel.x = -ball.vel.x
+        level.score_enemy += 1
+        reset_ball(ball)
+        level.serve_timer = level.wait_time
+    }
 }
 
+check_ball_paddle_collision :: proc(ball: Entity, paddle: Entity) -> bool {
+    paddle_rec := rl.Rectangle{
+        x      = paddle.pos.x,
+        y      = paddle.pos.y,
+        width  = paddle.size.x,
+        height = paddle.size.y,
+    }
+    return rl.CheckCollisionCircleRec(ball.pos, ball.size.x, paddle_rec)
 }
 
 render_ball :: proc(ball: Entity, field_bounds: rl.Rectangle) {