Make the mouse move to the center of the screen

* Create a `Mouse` class to group mouse movement and click functionality
* Add functions to move the mouse to the center of the screen (primary
  display)
* Move the cursor to the center on launch

4 files changed, 73 insertions, 1 deletions

diff --git a/Low Battery Yup d.xcodeproj/project.pbxproj b/Low Battery Yup d.xcodeproj/project.pbxproj
index 2b3e708..a123364 100644
--- a/Low Battery Yup d.xcodeproj/project.pbxproj
+++ b/Low Battery Yup d.xcodeproj/project.pbxproj
@@ -13,6 +13,7 @@
 		D18C94B31DDC33CF00E03F87 /* Credits.rtf in Resources */ = {isa = PBXBuildFile; fileRef = D18C94B11DDC33CF00E03F87 /* Credits.rtf */; };
 		D18C94B61DDC33CF00E03F87 /* AppDelegate.m in Sources */ = {isa = PBXBuildFile; fileRef = D18C94B51DDC33CF00E03F87 /* AppDelegate.m */; };
 		D18C94B91DDC33CF00E03F87 /* MainMenu.xib in Resources */ = {isa = PBXBuildFile; fileRef = D18C94B71DDC33CF00E03F87 /* MainMenu.xib */; };
+		D18C94C51DDC355400E03F87 /* Mouse.m in Sources */ = {isa = PBXBuildFile; fileRef = D18C94C41DDC355400E03F87 /* Mouse.m */; };
 /* End PBXBuildFile section */
 
 /* Begin PBXFileReference section */
@@ -29,6 +30,8 @@
 		D18C94B41DDC33CF00E03F87 /* AppDelegate.h */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.h; path = AppDelegate.h; sourceTree = "<group>"; };
 		D18C94B51DDC33CF00E03F87 /* AppDelegate.m */ = {isa = PBXFileReference; lastKnownFileType = sourcecode.c.objc; path = AppDelegate.m; sourceTree = "<group>"; };
 		D18C94B81DDC33CF00E03F87 /* en */ = {isa = PBXFileReference; lastKnownFileType = file.xib; name = en; path = en.lproj/MainMenu.xib; sourceTree = "<group>"; };
+		D18C94C31DDC355400E03F87 /* Mouse.h */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.h; path = Mouse.h; sourceTree = "<group>"; };
+		D18C94C41DDC355400E03F87 /* Mouse.m */ = {isa = PBXFileReference; fileEncoding = 4; lastKnownFileType = sourcecode.c.objc; path = Mouse.m; sourceTree = "<group>"; };
 /* End PBXFileReference section */
 
 /* Begin PBXFrameworksBuildPhase section */
@@ -84,6 +87,8 @@
 			children = (
 				D18C94B41DDC33CF00E03F87 /* AppDelegate.h */,
 				D18C94B51DDC33CF00E03F87 /* AppDelegate.m */,
+				D18C94C31DDC355400E03F87 /* Mouse.h */,
+				D18C94C41DDC355400E03F87 /* Mouse.m */,
 				D18C94B71DDC33CF00E03F87 /* MainMenu.xib */,
 				D18C94A91DDC33CF00E03F87 /* Supporting Files */,
 			);
@@ -168,6 +173,7 @@
 			files = (
 				D18C94AF1DDC33CF00E03F87 /* main.m in Sources */,
 				D18C94B61DDC33CF00E03F87 /* AppDelegate.m in Sources */,
+				D18C94C51DDC355400E03F87 /* Mouse.m in Sources */,
 			);
 			runOnlyForDeploymentPostprocessing = 0;
 		};
@@ -295,6 +301,7 @@
 				D18C94BE1DDC33CF00E03F87 /* Release */,
 			);
 			defaultConfigurationIsVisible = 0;
+			defaultConfigurationName = Release;
 		};
 /* End XCConfigurationList section */
 	};
diff --git a/Low Battery Yup d/AppDelegate.m b/Low Battery Yup d/AppDelegate.m
index 37178d4..d599f8a 100644
--- a/Low Battery Yup d/AppDelegate.m
+++ b/Low Battery Yup d/AppDelegate.m
@@ -7,6 +7,7 @@
 //
 
 #import "AppDelegate.h"
+#import "Mouse.h"
 
 @implementation AppDelegate
 
@@ -17,7 +18,8 @@
 
 - (void)applicationDidFinishLaunching:(NSNotification *)aNotification
 {
-	// Insert code here to initialize your application
+	Mouse *m = [[Mouse alloc] init];
+	[m moveToCenter];
 }
 
 @end
diff --git a/Low Battery Yup d/Mouse.h b/Low Battery Yup d/Mouse.h
new file mode 100644
index 0000000..950f9c1
--- /dev/null
+++ b/Low Battery Yup d/Mouse.h
@@ -0,0 +1,19 @@
+//
+//  Mouse.h
+//  Low Battery Yup d
+//
+//  Created by TW on 11/16/16.
+//  Copyright (c) 2016 TW. All rights reserved.
+//
+
+#import <Foundation/Foundation.h>
+
+@interface Mouse : NSObject {
+	CGDirectDisplayID _current_display;
+}
+
+- (void)moveToPoint:(CGPoint)point;
+- (void)moveToCenter;
+- (void)click;
+
+@end
diff --git a/Low Battery Yup d/Mouse.m b/Low Battery Yup d/Mouse.m
new file mode 100644
index 0000000..ead9010
--- /dev/null
+++ b/Low Battery Yup d/Mouse.m
@@ -0,0 +1,44 @@
+//
+//  Mouse.m
+//  Low Battery Yup d
+//
+//  Created by TW on 11/16/16.
+//  Copyright (c) 2016 TW. All rights reserved.
+//
+
+#import "Mouse.h"
+
+@implementation Mouse
+
+- (id)init
+{
+    self = [super init];
+    if (self) {
+        _current_display = CGMainDisplayID();
+    }
+    return self;
+}
+
+- (void)moveToPoint:(CGPoint)point
+{
+	CGDisplayMoveCursorToPoint(_current_display, point);
+}
+
+- (void)moveToCenter
+{
+	CGPoint point;
+
+	size_t width = CGDisplayPixelsWide(_current_display);
+	size_t height = CGDisplayPixelsHigh(_current_display);
+
+	point.x = width / 2;
+	point.y = height / 2;
+
+	[self moveToPoint:point];
+}
+
+- (void)click
+{
+}
+
+@end