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/**//*
* Teapot move when leftbutton down
*/
#include <windows.h>#include <gl/glut.h>static GLdouble red = 1.0 ;static GLdouble green = 1.0 ;static GLdouble blue = 1.0 ;float spinX , spinY ;int curX , curY , myX , myY ; void init ( void )
{ glClearColor ( 0.0 , 0.0 , 0.0 , 0.0 ) ; glShadeModel ( GL_FLAT ) ;}void display ( void ){ glClear ( GL_COLOR_BUFFER_BIT ) ; glColor3f ( red , green , blue ) ; glutSolidTeapot ( 50 ) ; glutSwapBuffers () ;}void reshape ( int w , int h ){ glViewport ( 0 , 0 , ( GLsizei ) w , ( GLsizei ) h ) ; glMatrixMode ( GL_PROJECTION ) ; glLoadIdentity () ; glOrtho ( -w / 2 , w / 2 , -h / 2 , h / 2 , -100.0 , 100.0 ) ; glMatrixMode ( GL_MODELVIEW ) ; glLoadIdentity () ;}void myKeyboard ( unsigned char key , int x , int y ){ switch ( key )
{ case 'r': case 'R': red = 1.0 ; green = 0.0 ; blue = 0.0 ; break ; case 'g': case 'G': red = 0.0 ; green = 1.0 ; blue = 0.0 ; break ; case 'b': case 'B': red = 0.0 ; green = 0.0 ; blue = 1.0 ; break ; default : break ;
} glutPostRedisplay () ;}void motion ( int xPos , int yPos ) { myX = xPos ; myY = yPos ; glutPostRedisplay () ;}void mouse ( int button , int state , int mouseX , int mouseY ){ switch ( button ) { case GLUT_LEFT_BUTTON : curX = mouseX ; curY = mouseY ; motion ( curX , curY ) ; break ; }}int main ( int argc , char** argv ){ glutInit ( &argc , argv ) ; glutInitDisplayMode ( GLUT_DOUBLE | GLUT_RGB ) ; glutInitWindowSize ( 800 , 600 ) ; glutInitWindowPosition ( 100 , 100 ) ; glutCreateWindow ( " Teapot Move " ) ; init () ; glutDisplayFunc ( display ) ; glutReshapeFunc ( reshape ) ; glutKeyboardFunc ( myKeyboard ) ; glutMouseFunc ( mouse ) ; glutMotionFunc ( motion ) ; glutMainLoop () ; return 0 ;}榪樿澶氬鎸囨暀鍟婏紝鏈漢闈炲父鎰挎剰鍚彇浠栦漢鐨勬剰瑙侊紝鎰熻阿鍟婏紒錛?
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