Otacons eyes properly follow the mouse cursor

OtaClock/Base.lproj/MainMenu.xib

                 <outlet property="changeSize5" destination="Qji-aB-KLD" id="a79-d3-RIN"/>
                 <outlet property="keepOnTopItem" destination="bk2-WG-9eq" id="vBf-vA-eXc"/>
                 <outlet property="lockPositionItem" destination="YfQ-b7-bXC" id="CYs-rk-6GP"/>
+                <outlet property="mainView" destination="EiT-Mj-1SZ" id="sQZ-BE-YrX"/>
             </connections>
             <point key="canvasLocation" x="129.5" y="81"/>
         </window>

OtaClock/Info.plist

 	<key>CFBundleSignature</key>
 	<string>????</string>
 	<key>CFBundleVersion</key>
-	<string>107</string>
+	<string>140</string>
 	<key>LSApplicationCategoryType</key>
 	<string>public.app-category.utilities</string>
 	<key>LSMinimumSystemVersion</key>

OtaClock/MainView.h

 
 #import <Cocoa/Cocoa.h>
 
+#import "Render.h"
+
 @interface MainView : NSView
 
+@property (strong) Render *render;
+
 @end

OtaClock/MainView.m

 //
 
 #import "MainWindow.h"
-#import "Render.h"
 #import "MainView.h"
 
 @interface MainView ()
 
-@property (strong) Render *render;
-
 @end
 
 @implementation MainView
     // Clear background
     [[NSColor clearColor] set];
     NSRectFill([self frame]);
-    
-    [render drawWith:0]; // Should be done somewhere else!
     [render drawInto:self]; // Draw composite image
 }
 

OtaClock/MainWindow.m

 //  Copyright (c) 2015 xythobuz. All rights reserved.
 //
 
+#import "MainView.h"
 #import "MainWindow.h"
 
 #define RESIZE_START 1
 #define CONFIG_KEEP_POSITION @"keep_position"
 #define CONFIG_KEEP_ON_TOP @"keep_on_top"
 
+#define MOUSE_CENTER_X 337
+#define MOUSE_CENTER_Y 237
+
+#define EYE_BLINK 0
+#define EYE_TOP_RIGHT 4
+#define EYE_TOP_LEFT 2
+#define EYE_BOTTOM_RIGHT 3
+#define EYE_BOTTOM_LEFT 1
+
 @interface MainWindow ()
 
 @property (assign) NSSize defaultSize;
 @property (assign) NSInteger startScale;
+@property (assign) NSInteger lastEyeState;
+
+@property (weak) IBOutlet MainView *mainView;
 
 @property (weak) IBOutlet NSMenuItem *lockPositionItem;
 @property (weak) IBOutlet NSMenuItem *keepOnTopItem;
 
 @synthesize defaultSize;
 @synthesize startScale;
-
-// TODO window position should be remembered!
+@synthesize lastEyeState;
 
 - (id)initWithContentRect:(NSRect)contentRect
                styleMask:(NSUInteger)aStyle
     if (self != nil) {
         [self setAlphaValue:1.0];
         [self setOpaque:NO];
+        lastEyeState = EYE_TOP_LEFT;
         
         NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
         
             startScale = [defaults integerForKey:CONFIG_START_SCALE];
         }
     }
+    
+    [self setAcceptsMouseMovedEvents:YES];
+    [NSEvent addGlobalMonitorForEventsMatchingMask:NSMouseMovedMask handler:^(NSEvent *mouseMovedEvent) { [self mouseMoved:mouseMovedEvent]; }];
+    
     return self;
 }
 
     if (startScale == 4) [self.changeSize4 setState:NSOnState];
     if (startScale == 5) [self.changeSize5 setState:NSOnState];
     
+    [[self.mainView render] drawWith:lastEyeState]; // Initialize render image
+    
     [self setFrame:frame display:YES];
 }
 
 }
 
 - (void)mouseDown:(NSEvent *)theEvent {
-    self.dragStart = [theEvent locationInWindow];
+    dragStart = [theEvent locationInWindow];
 }
 
 - (void)mouseDragged:(NSEvent *)theEvent {
     }
 }
 
+- (void)mouseMoved:(NSEvent *)theEvent {
+    NSPoint mousePoint = [NSEvent mouseLocation];
+    mousePoint.x -= [self frame].origin.x;
+    mousePoint.y -= [self frame].origin.y;
+    
+    BOOL top = (mousePoint.y > MOUSE_CENTER_Y);
+    BOOL right = (mousePoint.x > MOUSE_CENTER_X);
+    
+    NSInteger eyeState = EYE_BOTTOM_LEFT;
+    if (top && right) {
+        eyeState = EYE_TOP_RIGHT;
+    } else if (top && (!right)) {
+        eyeState = EYE_TOP_LEFT;
+    } else if ((!top) && right) {
+        eyeState = EYE_BOTTOM_RIGHT;
+    }
+    
+    if (eyeState != lastEyeState) {
+        lastEyeState = eyeState;
+        [[self.mainView render] drawWith:lastEyeState];
+        self.mainView.needsDisplay = YES;
+    }
+}
+
 @end