Added flag thingy

OpenGL1/Main.cpp

@@ -3,19 +3,65 @@
 
 using namespace std;
 
-void display() {
+float rotation = 0;
+
+void display() 
+{
+	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
+	glClearColor(1.0, 0.7, 0.0, 1.0);
+
+	glMatrixMode(GL_PROJECTION);
+	glLoadIdentity();
+	gluPerspective(90, 1, 0.5f, 20.0f);
+
+	glMatrixMode(GL_MODELVIEW);
+	glLoadIdentity();
+	gluLookAt(0, 0, -3,
+		0, 0, 0,
+		0, 1, 0);
+
+	glRotatef(rotation, 0, 1, 0);
+
+	glBegin(GL_TRIANGLES);
+		glColor3f(1.0f, 0.7f, 1.0f);
+		glVertex3f(0, 0, 0);
+		glVertex3f(0, 1, 0);
+		glVertex3f(1, 1, 0);
+	glEnd();
+
+	glBegin(GL_TRIANGLES);
+		glColor3f(0.1,1,0.1);
+		glVertex3f(0, 0, 0);
+		glVertex3f(1, 1, 0);
+		glVertex3f(1, 0, 0);
+	glEnd();
+
 	glutSwapBuffers();
 }
 
-int main(int argc, char *argv[]) {
+void idle()
+{
+	rotation += 0.1f;
+	glutPostRedisplay();
+}
 
-	glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE);
+void keyboard(unsigned char key, int x, int y)
+{
+	if (key == 27)
+		exit(0);
+}
+
+int main(int argc, char *argv[]) 
+{
+	glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
 	glutInitWindowSize(800, 600);
 
 	glutInit(&argc, argv);
 	glutCreateWindow("Hello World");
 
 	glutDisplayFunc(display);
+	glutIdleFunc(idle);
+	glutKeyboardFunc(keyboard);
 
 	glutMainLoop();
 	return 0;