add xcode support

 - tested ok in max os x 10.8 (Mountain Lion) by xcode 4.4 using openGL framework
 - but remove some feature in main.cpp. Maybe add them someday, because I do't need them today.

Author: flashjay

Diff for: .gitignore

@@ -1 +1,2 @@
 *.o
+.DS_Store

Diff for: README

@@ -16,3 +16,7 @@ TODO list:
 3 User control from keyboard, so user can play with computer.
 4 ...
 
+------------------------<faryang>------------------------
+
+ - 2012/7/31 Add Xcode Project files
+

Diff for: build/Basketball_Demo_osx.xcodeproj/.gitignore

@@ -0,0 +1,2 @@
+project.xcworkspace/
+xcuserdata/

Diff for: build/Basketball_Demo_osx.xcodeproj/project.pbxproj

@@ -0,0 +1,74 @@
+//  main.cpp
+//  BasketBall
+//
+//  Created by FarYang on 7/31/12.
+//  Copyright (c) 2012 FarYang. All rights reserved.
+//
+
+#include <iostream>
+#include <stdlib.h>
+#include <math.h>
+#include <GLUT/glut.h>
+#include "Game.h"
+
+using namespace std;
+
+const int tick = 50;/*ms*/
+
+int main_window, bottom_window, right_window;
+
+float obj_pos[] = { 2.0, 0.0, -50.0 };
+int last_x,last_y;
+
+
+void display()
+{
+    glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
+    glPushMatrix();
+    glTranslatef(-obj_pos[0],-obj_pos[1],-obj_pos[2] );
+    GAME->Render();
+    //draw the secen
+    glPopMatrix();
+    glutSwapBuffers();
+}
+
+void reshape(int w, int h)
+{
+    glViewport (0, 0, (GLsizei) w, (GLsizei) h);
+    glMatrixMode(GL_PROJECTION);
+    glLoadIdentity();
+    gluPerspective(65.0, (GLfloat) w/(GLfloat) h, 1.0, 20000.0);
+    glMatrixMode(GL_MODELVIEW);
+    glLoadIdentity();
+    gluLookAt(0.0f,0.0f,70.0f,0.0f,0.0f,0.0f,0.0f,1.0f,0.0f);
+    glutPostRedisplay();
+}
+
+void update()
+{
+    if ( glutGetWindow() != main_window )
+        glutSetWindow(main_window);
+    usleep(tick * 1000);
+    GAME->Update();
+    glutPostRedisplay();
+}
+
+int main(int argc, char **argv)
+{
+    glutInit( &argc, argv );
+    glutInitDisplayMode( GLUT_DOUBLE | GLUT_RGB |GLUT_DEPTH );
+    glutInitWindowSize( 800, 600 );
+    glutInitWindowPosition(800, 500);
+    main_window = glutCreateWindow( "BasketBall - keywords: AI, FSM, Steering Behaviors" );
+    glClearColor(0.0, 00.0, 0.0, 0.0);
+    glShadeModel(GL_FLAT);
+    srand((unsigned)time(NULL));
+    glutDisplayFunc( display );
+    glutReshapeFunc(reshape);
+    
+    glutIdleFunc(update);
+    
+    glutMainLoop();
+    return 0;
+}
+

Diff for: src/Entry.cpp

@@ -7,8 +7,8 @@
 #include <stdio.h>
 #include <cstring>
 #include <stdarg.h>
-#include <GL/glut.h>
 #include "Vec2D.h"
+#include <GLUT/glut.h>
 
 
 //------------------------------- define some colors