Set launch angle

core/src/com/me/brickbuster/entity/Ball.java

@@ -2,6 +2,7 @@ package com.me.brickbuster.entity;
 
 import com.badlogic.gdx.graphics.Color;
 import com.badlogic.gdx.graphics.glutils.ShapeRenderer;
+import com.badlogic.gdx.math.MathUtils;
 import com.badlogic.gdx.math.Vector2;
 import com.me.brickbuster.BrickBuster;
 
@@ -38,7 +39,8 @@ public class Ball extends Entity {
 	}
 
 	public void launch() {
-		direction = new Vector2(0, 1);
+		float angle = MathUtils.random(MathUtils.PI/2) + MathUtils.PI/4;
+		direction = new Vector2(MathUtils.cos(angle), MathUtils.sin(angle));
 		speed = 5;
 	}
 }

core/src/com/me/brickbuster/entity/Block.java

@@ -23,6 +23,5 @@ public class Block extends Entity {
 
 	@Override
 	public void update(float dt) {
-
 	}
 }