mycpp.cpp

来自「Visual_C++.NET实用编程百例」· C++ 代码 · 共 79 行

#include "windows.h"
#include "gl/gl.h"
#include "gl/glu.h"
#include "gl/glaux.h"

void myinit(void);
void CALLBACK display(void);
void CALLBACK reshape(GLsizei w,GLsizei h);
void CALLBACK left(void);
void CALLBACK right(void);
void CALLBACK up(void);
void CALLBACK down(void);

static double xPos=0.0;
static double yPos=0.0;
void myinit(void)
{
	auxInitDisplayMode(AUX_SINGLE|AUX_RGBA);
	auxInitPosition(0,0,200,200);
	auxInitWindow("键盘动画");
}
void CALLBACK reshape(GLsizei w,GLsizei h)
{
	if(w>h)
		glViewport(0,0,h,h);
	else
		glViewport(0,0,w,w);
}
void draw()
{
	glBegin(GL_TRIANGLE_STRIP);
	glColor3f(1.0,0.0,0.0);
	glVertex3f(-0.3,-0.5,0.0);
	glColor3f(0.0,1.0,1.0);
	glVertex3f(-0.8,0.5,0.0);
	glColor3f(0.0,0.0,1.0);
	glVertex3f(-0.0,0.8,-0.3);
	glColor3f(1.0,1.0,0.0);
	glVertex3f(0.6,-0.8,-0.7);
	glColor3f(1.0,0.0,0.0);
	glVertex3f(-0.3,-0.5,0.0);
	glEnd();
	glFlush();
}
void CALLBACK display(void)
{
	glClearColor(255.0,255.0,255.0,0.0);
	glClear(GL_COLOR_BUFFER_BIT);
	glLoadIdentity();
	glTranslatef(xPos,yPos,0.0);
	draw();
}
void CALLBACK left(void)
{
	xPos=xPos-0.05;
}
void CALLBACK right(void)
{
	xPos=xPos+0.05;
}
void CALLBACK up(void)
{
	yPos=yPos+0.05;
}
void CALLBACK down(void)
{
	yPos=yPos-0.05;
}
void main(void)
{
	myinit();
	auxKeyFunc(AUX_LEFT,left);
	auxKeyFunc(AUX_RIGHT,right);
	auxKeyFunc(AUX_UP,up);
	auxKeyFunc(AUX_DOWN,down);
	auxReshapeFunc(reshape);
	auxMainLoop(display);
}