Add GameCanvas

src/com/annimon/turrets/GameCanvas.java

@@ -0,0 +1,34 @@
+package com.annimon.turrets;
+
+import java.awt.Canvas;
+import java.awt.Color;
+import java.awt.Graphics;
+import java.awt.image.BufferedImage;
+
+/**
+ *
+ * @author aNNiMON
+ */
+public class GameCanvas extends Canvas {
+    
+    private BufferedImage background;
+    
+    public GameCanvas() {
+        setSize(Constants.WIDTH, Constants.HEIGHT);
+        setPreferredSize(Constants.SCREEN_DIMENSION);
+        
+        initBackground();
+    }
+
+    @Override
+    public void paint(Graphics g) {
+        g.drawImage(background, 0, 0, null);
+    }
+
+    private void initBackground() {
+        background = new BufferedImage(Constants.WIDTH, Constants.HEIGHT, BufferedImage.TYPE_INT_RGB);
+        Graphics g = background.createGraphics();
+        new Background().draw(g);
+        g.dispose();
+    }
+}