缺錢week17

 今天是複習

glutInitWindowSize(400,400);///視窗大小

glutInitWindowPosition(700,200);///視窗位置

完整程式碼

#include <GL/glut.h>

#include <stdio.h>  /// 標準輸入輸出

FILE * fout = NULL;

FILE * fin = NULL;

float angle[20] = {};  ///先都設成0

int angleID = 0;///現在要動的關節是誰?

void timer(int t){

    glutTimerFunc( 500, timer, t+1);

    if( fin==NULL ) fin = fopen("angle.txt", "r");

    for(int i=0; i<20; i++) fscanf(fin, "%f", &angle[i]);

    glutPostRedisplay();  ///重畫畫面

    printf("read angle.txt\n");

}

void keyboard(unsigned char key ,int x, int y){

    if(key=='0') angleID=0;

    if(key=='1') angleID=1;

    if(key=='2') angleID=2;

    if(key=='3') angleID=3;

    if(key=='4') angleID=4;

    if(key=='5') angleID=5;

    if(key=='6') angleID=6;

    if(key=='p'){ ///Play播放

        glutTimerFunc(0, timer, 0);///一開始的第1個timer

    }

    if(key=='s'){///存檔

        if( fout == NULL ) fout = fopen("angle.txt", "w+");

        for(int i=0; i<20; i++) fprintf(fout, "%.2f ", angle[i]);

        fprintf(fout, "\n");

        printf("save angle.txt\n");

    }else if(key=='r'){///讀檔 (不能和存檔同時做,因angle.txt不能開2次)

        if( fin==NULL ) fin = fopen("angle.txt", "r");

        for(int i=0; i<20; i++) fscanf(fin, "%f", &angle[i]);

        glutPostRedisplay();///重畫畫面

        printf("read angle.txt\n");

    }

}

float oldX=0;

void mouse(int button,int state,int x,int y){

    oldX = x;

}

void motion(int x,int y){

    angle[angleID] += x-oldX;

    oldX = x;

    glutPostRedisplay(); ///重劃畫面

}

const GLfloat light_ambient[]  = { 0.0f, 0.0f, 0.0f, 1.0f };

const GLfloat light_diffuse[]  = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat light_specular[] = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat light_position[] = { 2.0f, 5.0f, -5.0f, 0.0f };

const GLfloat mat_ambient[]    = { 0.7f, 0.7f, 0.7f, 1.0f };

const GLfloat mat_diffuse[]    = { 0.8f, 0.8f, 0.8f, 1.0f };

const GLfloat mat_specular[]   = { 1.0f, 1.0f, 1.0f, 1.0f };

const GLfloat high_shininess[] = { 100.0f };

void display()

{

     glClearColor( 1,0,0,0); ///用來Clear的Color 用紅色

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glColor3f( 1,1,0 );

        glutSolidTeapot( 0.3 );///身體

        glPushMatrix(); ///左半邊

            glTranslatef(-.3, 0, 0);

            glRotatef(angle[0], 0,0,1);

            glTranslatef(-.3, .1, 0);

            glutSolidTeapot(0.3); ///左手臂

            glPushMatrix();

                glTranslatef(-.3, 0, 0);

                glRotatef(angle[1], 0,0,1);

                glTranslatef(-.3, 0, 0);

                glutSolidTeapot(0.3); ///左手肘

            glPopMatrix();

        glPopMatrix();

        glPushMatrix(); ///右半邊

            glTranslatef(+.3, 0, 0);

            glRotatef(angle[2], 0,0,1);

            glTranslatef(+.3, .1, 0);

            glutSolidTeapot(0.3); ///右手臂

            glPushMatrix();

                glTranslatef(+.3, 0, 0);

                glRotatef(angle[3], 0,0,1);

                glTranslatef(+.3, 0, 0);

                glutSolidTeapot(0.3); ///右手肘

            glPopMatrix();

        glPopMatrix();

    glPopMatrix();

    glutSwapBuffers();

}

int main(int argc,char**argv)

{

    glutInit(&argc,argv);

    glutInitWindowSize(300,300);

    glutInitWindowPosition(700,200);

    glutInitDisplayMode(GLUT_DOUBLE |GLUT_DEPTH);

    glutCreateWindow("Week17 review");

    glEnable(GL_DEPTH_TEST);

    glDepthFunc(GL_LESS);

    glEnable(GL_LIGHT0);

    glEnable(GL_NORMALIZE);

    glEnable(GL_COLOR_MATERIAL);

    glEnable(GL_LIGHTING);

    glLightfv(GL_LIGHT0, GL_AMBIENT,  light_ambient);

    glLightfv(GL_LIGHT0, GL_DIFFUSE,  light_diffuse);

    glLightfv(GL_LIGHT0, GL_SPECULAR, light_specular);

    glLightfv(GL_LIGHT0, GL_POSITION, light_position);

    glMaterialfv(GL_FRONT, GL_AMBIENT,   mat_ambient);

    glMaterialfv(GL_FRONT, GL_DIFFUSE,   mat_diffuse);

    glMaterialfv(GL_FRONT, GL_SPECULAR,  mat_specular);

    glMaterialfv(GL_FRONT, GL_SHININESS, high_shininess);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutDisplayFunc(display);

    glutMainLoop();

}