刚工作没多久的时候，业余学习了OGL的知识（这是写不好的借口吧），

在某个异性生日的时候写了这个程序。

编译平台： MinGW GCC

gcc -o happOK happyOK.c -lglut32 -lglu32 -lopengl32

效果图（不太会转gif，好粗糙……）：

代码、exe、glut32.dll opengl32.dll打包

http://files.cnblogs.com/paktc/HappyBirthday%E5%B0%8F%E6%95%88%E6%9E%9C.rar

代码：

#include <stdio.h>

#include <stdlib.h>

#include <GL/glut.h>

#include <math.h>

#define winwidth 500

#define winheight 500

#define ww winwidth/2

#define wh winheight/2

#define nbox 150

#define SLP  300

int winid;

float anga=0.0;

float boxsize=12.0;

static struct {

    float x,y,z;

    float xmax,ymax,zmax;

    float xadd,yadd,zadd;

    float delta;

} ang={,,,  ,,, ,,, 0.5};

static struct {

    float x,xnext,xadd;

    float y,ynext,yadd;

    float z,znext,zadd;

    float ang,angnext;

} box[nbox];

int arr[]={,,,,,,,,,,,,,,,,

    ,,,,,,,,,,,,,,,

    ,,,,};

int brr[]={,,,,,,,,,,,,,,,,

    ,,,,,,,,,,};

int crr[]={,,,,,,,,,,,,,,,,

    ,,,,,,,,,,,,,,,,

    ,,,,,,,,,};

int drr[]={,,,,,,,,,,,,,,,,

    ,,,,,,,,,,,,,,,};

int err[]={,,,,,,,,,,,,,};

void drawbox(float px,float py,float pz,float ang) {

    glPushMatrix();

    glTranslatef(px,py,pz);

    glRotatef(ang,1.0,0.0,0.0);

    glColor3f(px/winwidth,py/winwidth,0.5);

    glBegin(GL_POLYGON);

        glVertex3f(-boxsize,-boxsize,0.0);

        glVertex3f(-boxsize,boxsize,0.0);

        glVertex3f(boxsize,boxsize,0.0);

        glVertex3f(boxsize,-boxsize,0.0);

    glEnd();

/*

    glBegin(GL_POLYGON);

        glVertex3f(px-boxsize,py-boxsize,0.0);

        glVertex3f(px-boxsize,py+boxsize,0.0);

        glVertex3f(px+boxsize,py+boxsize,0.0);

        glVertex3f(px+boxsize,py-boxsize,0.0);

    glEnd();

*/

    glPopMatrix();

}

void display(void) {

    int i;

    glClearColor(0.0,0.0,0.0,1.0);

    glClear(GL_COLOR_BUFFER_BIT);

    glPolygonMode(GL_BACK,GL_LINE);

    //glRotatef(0.05,1.0,1.0,0.0);

    if (ang.ymax>0.0) {glRotatef(ang.delta,1.0,0.0,0.0);ang.ymax-=ang.delta;}

    if (ang.xmax>0.0) {glRotatef(ang.delta,0.0,1.0,0.0);ang.xmax-=ang.delta;}

    glPushMatrix();

    glTranslatef(-125.0,-200.0,0.0);

    for (i=;i<;i++) {

        if (box[i].ang<box[i].angnext) {box[i].ang+=2.0;}

        if (box[i].z<box[i].znext) {box[i].z+=box[i].zadd;}

        if (box[i].z>box[i].znext) {box[i].z+=box[i].zadd;}

        drawbox(box[i].x,box[i].y,box[i].z,box[i].ang);

    }

    glPopMatrix();

    glutSwapBuffers();

}

void empty(void) {

    static int here=;

    int steper(int level);

    int steper1(int level);

    int steper2(int level);

    int steper3(int level);

    int steper4(int level);

    if (here==) {here=steper();}

    if (here==) {here=changeall();}

    if (here==) {here=steper1();}

    if (here==) {here=changeall();}

    if (here==) {here=steper2();}

    if (here==) {here=changeall();}

    if (here==) {here=steper3();}

    if (here==) {here=changeall();}

    if (here==) {here=steper4();}

    glutPostRedisplay();

}

void sometest(int whoi) {

    float i,tempx;

    tempx=box[whoi].ang;

    for (i=tempx;i<=tempx+;i+=0.4) {

        box[whoi].ang=i;

        display();

    }

}

void mouse(int button,int state,int mousex,int mousey) {

    printf("button=%d  state=%d  mousex=%d mousey=%d\n",

        button,state,mousex,mousey);

    int whoi;

    if (button==) {

        if (state==) {

            whoi=who(mousex,winheight-mousey);

            if (whoi != -) {

                printf("ang=%f\n",box[whoi].ang);

                sometest(whoi);

                // beep -> system("nircmd beep 2340" " 300");

            }

        }

    }

}

void reshape(int x,int y) {

    printf("%d %d\n",x,y);

    glViewport(,,x,y);

    /* GLint startx, GLint starty, GLsizei width, GLsizei height */

    glMatrixMode(GL_PROJECTION);

        glLoadIdentity();

        //glOrtho(0.0,500.0, 0.0,500.0, 100.0,200.0);

        gluPerspective(80.0,1.0,,);

    glMatrixMode(GL_MODELVIEW);

        glLoadIdentity();

        gluLookAt(0.0,0.0,300.0, 0.0,0.0,0.0, 0.0,1.0,300.0);

}

void hitkey(unsigned char key,int mousex,int mousey) {

    switch (key) {

        case 'q':

            glutDestroyWindow(winid);

            exit();

            break;

        case 'a':

            ang.yadd=ang.delta;

            ang.ymax=90.0;

            glutPostRedisplay();

            break;

        case 'd':

            ang.yadd=-ang.delta;

            ang.ymax=90.0;

            glutPostRedisplay();

            break;

        case 'w':

            ang.xadd=ang.delta;

            ang.xmax=90.0;

            glutPostRedisplay();

            break;

        case 's':

            ang.xadd=-ang.delta;

            ang.xmax=90.0;

            glutPostRedisplay();

            break;

    }

}

void init(void) {

    int i;

    srand(time(NULL));

    for (i=;i<nbox;i++) {

        box[i].x=(int)(i/)*30.0+10.0;

        box[i].y=(i%)*30.0+10.0;

        box[i].z=0.0;

        box[i].ang=180.0;

        printf("%f %f %f\n",box[i].x,box[i].y,box[i].ang);

    }

}

int main(int argc,char *argv[]) {

    glutInit(&argc,argv);

    glutInitDisplayMode(GLUT_DOUBLE|GLUT_RGBA);

    glutInitWindowPosition(,);

    glutInitWindowSize(,);

    winid=glutCreateWindow("test");

    init();

    glutDisplayFunc(display);

    glutReshapeFunc(reshape);

    glutKeyboardFunc(hitkey);

    glutMouseFunc(mouse);

    glutIdleFunc(empty);

    glutMainLoop();

    return ;

}

/*===================================================*/

int who(int x,int y) {

    int i,result=-;

    float left,right;

    float up,down;

    for (i=;i<nbox;i++) {

        left=box[i].x-boxsize;

        right=box[i].x+boxsize;

        up=box[i].y+boxsize;

        down=box[i].y-boxsize;

        if (left<x && x<right) {

            if (down<y && y<up) {

                result=i;

            }

        }

    }

    return result;

}

/*=====================================================*/

int steper(int level) {

    static int i;

    static float j;

    int fo,no=;

    usleep(SLP);

    if (i==) {ang.xmax=ang.x+20.0;}

    j+=0.5;

    if (j==1.0) {

        j=0.0;

        for (fo=;fo<;fo++) {

            if (arr[fo] == i) {no=;}

        }

        if (no==) {box[i].angnext=box[i].ang+180.0;}

        i++;

    }

    if (i==nbox) {i=;return level+;} else {return level;}

}

int steper1(int level) {

    static int i;

    static float j;

    int fo,no=;

    usleep(SLP);

    if (i==) {

        ang.xmax=180.0;

    }

    j+=0.5;

    if (j==1.0) {

        j=0.0;

        for (fo=;fo<;fo++) {

            if (arr[fo] == i) {no=;}

        }

        if (no==) {box[i].angnext=box[i].ang+180.0;}

        no=;

        for (fo=;fo<;fo++) {

            if (brr[fo] == i) {no=;}

        }

        if (no==) {box[i].angnext=box[i].angnext+180.0;}

        box[i].znext=box[i].z+80.0;

        box[i].zadd=1.0;

        i++;

    }

    if (i==nbox) {i=;return level+;} else {return level;}

}

int steper2(int level) {

    static int i;

    static float j;

    int fo,no=;

    usleep(SLP);

    if (i==) {

        ang.xmax=150.0;

    }

    j+=0.5;

    if (j==1.0) {

        j=0.0;

        for (fo=;fo<;fo++) {

            if (brr[fo] == i) {no=;}

        }

        if (no==) {box[i].angnext=box[i].ang+180.0;}

        no=;

        for (fo=;fo<;fo++) {

            if (crr[fo] == i) {no=;}

        }

        if (no==) {box[i].angnext=box[i].angnext+180.0;}

        box[i].znext=box[i].z-80.0;

        box[i].zadd=-1.0;

        i++;

    }

    if (i==nbox) {i=;return level+;} else {return level;}

}

int steper3(int level) {

    static int i;

    static float j;

    int fo,no=;

    usleep(SLP);

    if (i==) {

        ang.xmax=30.0;

    }

    j+=0.5;

    if (j==1.0) {

        j=0.0;

        for (fo=;fo<;fo++) {

            if (crr[fo] == i) {no=;}

        }

        if (no==) {box[i].angnext=box[i].ang+180.0;}

        no=;

        for (fo=;fo<;fo++) {

            if (drr[fo] == i) {no=;}

        }

        if (no==) {box[i].angnext=box[i].angnext+180.0;}

        i++;

    }

    if (i==nbox) {i=;return level+;} else {return level;}

}

int steper4(int level) {

    static int i;

    static float j;

    int fo,no=;

    usleep(SLP);

    j+=0.5;

    if (j==1.0) {

        j=0.0;

        for (fo=;fo<;fo++) {

            if (drr[fo] == i) {no=;}

        }

        if (no==) {box[i].angnext=box[i].ang+180.0;}

        no=;

        for (fo=;fo<;fo++) {

            if (err[fo] == i) {no=;}

        }

        if (no==) {box[i].angnext=box[i].angnext+180.0;}

        if (no==) {box[i].z=1000.0;}

        i++;

    }

    if (i==nbox) {i=;return level+;} else {return level;}

}

int changeall(int level) {

    static int i;

    usleep(SLP);

    box[i].angnext=box[i].ang+180.0;

    i++;

    if (i==nbox) {i=;return level+;} else {return level;}

}

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