From 3879dbef65bb57b886e6b3f5c2f35f37841a939c Mon Sep 17 00:00:00 2001
From: Aaron Mueller <mail@aaron-mueller.de>
Date: Fri, 6 Jul 2012 19:14:07 +0200
Subject: [PATCH] Make the AI unbreakable ... almost. see #9

---
 dev/lib/game/entities/paddle-enemy.js | 53 +++++++++++++++++++++------
 1 file changed, 42 insertions(+), 11 deletions(-)

diff --git a/dev/lib/game/entities/paddle-enemy.js b/dev/lib/game/entities/paddle-enemy.js
index c0b3efe..c9ce104 100644
--- a/dev/lib/game/entities/paddle-enemy.js
+++ b/dev/lib/game/entities/paddle-enemy.js
@@ -6,21 +6,52 @@ ig.module(
 	'game.entities.paddle'
 )
 .defines(function(){
+  EntityPaddleEnemy = EntityPaddle.extend({
+    move_delay: 35,
+    update: function() {
+      var ball = ig.game.getEntitiesByType(EntityBall)[0];
 
-EntityPaddleEnemy = EntityPaddle.extend({
+      if (this.move_delay > 0) this.move_delay -= 1;
 
-	update: function(){
-		var ball = ig.game.getEntitiesByType( EntityBall )[0];
+      // TODO: Let the AI use the force feature
 
-		if( ball.pos.y + ball.size.y / 2 > this.pos.y + this.size.y / 2 ) {
-			this.vel.y = 100;
-		} else {
-			this.vel.y = -100;
-		}
+      // Check if the ball is moving towards the enemy
+      if (ball.vel.x < 0) {
+        // Do we need to move the panel enyway?
+        if (this.move_delay == 0 && ((ball.pos.y > this.pos.y-5) && (ball.pos.y+ball.size.y < this.pos.y+this.size.y+5))) {
+          console.log("delay" + ball.pos.y);
+          this.move_delay = 3;
+          if (this.vel.y < 0) {
+            this.vel.y = -200+((3-this.move_delay)*50)
+          }
+          if (this.vel.y > 0) {
+            this.vel.y = 200-((3-this.move_delay)*50)
+          }
+        } else if (this.move_delay == 0) {
+          // The paddle is too low
+          if ((ball.pos.y+ball.size.y/2) < (this.pos.y+30)) {
+              this.vel.y = -400;
 
-		this.parent();
-	}
+          // The paddle is too high
+          } else {
+              this.vel.y = 400;
+          }
+        }
 
+      // Move to the middle
+      } else {
+        if (this.pos.y >= 130 && this.pos.y <= 180) {
+          this.vel.y = 0;
+        }
+
+        if (this.pos.y < 130) {
+          this.vel.y = 150;
+        } else if (this.pos.y > 180) {
+          this.vel.y = -150;
+        }
+      }
+      this.parent();
+    }
+  });
 });
 
-});