4 files changed, 51 insertions, 21 deletions
diff --git a/src/main/java/Scene.java b/src/main/java/Scene.java
index a2949fd..0d8a908 100644
--- a/src/main/java/Scene.java
+++ b/src/main/java/Scene.java
@@ -1,5 +1,11 @@
 import java.awt.Graphics;
 
 public abstract class Scene {
-    abstract void render(Graphics g);
+    protected int sceneYOffset = 0;
+    protected int sceneXOffset = 0;
+
+    abstract public void render(Graphics g);
+
+    public void mouseHover(int x, int y) {}
+    public void mouseClicked(int x, int y) {}
 }
diff --git a/src/main/java/Subconscious.java b/src/main/java/Subconscious.java
index 3e66800..d462385 100644
--- a/src/main/java/Subconscious.java
+++ b/src/main/java/Subconscious.java
@@ -42,21 +42,23 @@ public class Subconscious
     public Subconscious() {
         createWindow();
 
+        // setup component
+        addMouseListener(this);
+        addKeyListener(this);
+        addComponentListener(this);
         setFocusable(true);
         requestFocus();
 
         // TODO remove demo
         currentScene = new WorldScene(new Dimension(200, 200), 50);
-        addMouseListener(this);
-        addKeyListener(this);
-        addComponentListener(this);
     }
 
     private void createWindow() {
         window = new JFrame(TITLE);
         window.setSize(new Dimension(800, 600));
         window.setMinimumSize(getSize());
-        window.setLocationRelativeTo(null); window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); window.add(this);
+        window.setLocationRelativeTo(null); window.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        window.add(this);
     }
 
     /* game logic */
@@ -99,19 +101,15 @@ public class Subconscious
         while (running) {
             gameLoop();
             gameRender();
-            repaint();
-
+            repaint(); 
             // could be better with NanoSeconds, but this is
             // probably enough for this
             afterTime = System.currentTimeMillis();
             sleepTime = RENDER_PERIOD_MS - (beforeTime - afterTime);
 
             try {
-                // TODO replace with correct timing
                 Thread.sleep(sleepTime);
-            } catch (InterruptedException ex) {
-                //
-            }
+            } catch (InterruptedException ex) {}
 
             beforeTime = System.currentTimeMillis();
         }
@@ -127,7 +125,7 @@ public class Subconscious
             g.drawImage(dbImage, 0, 0, null);
         }
 
-        Toolkit.getDefaultToolkit().sync();
+        Toolkit.getDefaultToolkit().sync(); // needed on linux
         g.dispose();
     }
 
@@ -137,8 +135,7 @@ public class Subconscious
     @Override public void mouseEntered(MouseEvent e) {}
     @Override public void mouseExited(MouseEvent e) {}
     @Override public void mouseClicked(MouseEvent e) {
-        int x = e.getX();
-        int y = e.getY();
+        currentScene.mouseClicked(e.getX(), e.getY());
     }
 
     @Override public void keyPressed(KeyEvent e) {}
diff --git a/src/main/java/Tile.java b/src/main/java/Tile.java
index 1a95820..a5e0daa 100644
--- a/src/main/java/Tile.java
+++ b/src/main/java/Tile.java
@@ -7,6 +7,8 @@ public class Tile {
     public final int x, y;
     public final Type type;
 
+    public boolean selected = false;
+
     public Tile(Type type, int x, int y) {
         this.type = type;
         this.x = x;
diff --git a/src/main/java/WorldScene.java b/src/main/java/WorldScene.java
index 2145234..829afbb 100644
--- a/src/main/java/WorldScene.java
+++ b/src/main/java/WorldScene.java
@@ -25,6 +25,13 @@ public class WorldScene extends Scene {
         this.actors.add(player);
     }
 
+    private Composite makeAlpha(Graphics2D g2d, float alpha) {
+        Composite originalComposite = g2d.getComposite();
+        g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, alpha));
+
+        return originalComposite;
+    }
+
     @Override
     public void render(Graphics g) {
         Graphics2D g2d = (Graphics2D) g;
@@ -46,12 +53,19 @@ public class WorldScene extends Scene {
                 this.tileSize, this.tileSize
             );
 
-            // draw grid
-            // composite (enable alpha)
-            Composite originalComposite = g2d.getComposite();
-            g2d.setComposite(AlphaComposite.getInstance(AlphaComposite.SRC_OVER, .5f));
+            Composite originalComposite  = makeAlpha(g2d, .5f);
+
+            if (tile.selected) {
+                g2d.setColor(Palette.RED);
+                g2d.fillRect(
+                    this.tileSize * tile.x,
+                    this.tileSize * tile.y,
+                    this.tileSize, this.tileSize
+                );
+            }
 
-            g2d.setPaint(Color.BLACK);
+            // draw grid (with composite)
+            g2d.setPaint(Palette.BLACK);
             g2d.drawRect(
                 this.tileSize * tile.x,
                 this.tileSize * tile.y,
@@ -71,12 +85,23 @@ public class WorldScene extends Scene {
                     g2d.setColor(Palette.RED);
                     break;
             }
-            int gap = this.tileSize/10;
+            int gap = this.tileSize / 10;
             g2d.fillRect(
                 (this.tileSize * actor.x) + gap,
                 (this.tileSize * actor.y) + gap,
-                this.tileSize - gap*2, this.tileSize - gap*2
+                this.tileSize - gap * 2, this.tileSize - gap * 2
             );
         }
     }
+
+    @Override
+    public void mouseClicked(int x, int y) {
+        Tile tile = map.getTile(
+                (int) (x/(double)this.tileSize) + sceneXOffset, 
+                (int) (y/(double)this.tileSize) + sceneYOffset 
+        );
+
+        // TODO find clicked actor
+        tile.selected = !tile.selected;
+    }
 }