opengl： -- 飞机

// Ambient.c
// OpenGL SuperBible
// Beginning of OpenGL lighting sample
// Demonstrates Ambient Lighting
// Program by Richard S. Wright Jr.

/* OpenGL 超级宝典例子，翻译*/

#include "../../Common/OpenGLSB.h" // System and OpenGL Stuff

// 旋转次数
static GLfloat xRot = 0.0f;
static GLfloat yRot = 0.0f;

// 画场景回调函数
void RenderScene(void)
    {
    // 清除颜色及深度缓冲区
    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

//保存矩阵状态
glPushMatrix();
//沿x=1旋转xRot角度
glRotatef(xRot, 1.0f, 0.0f, 0.0f);
//沿y=1旋转yRot角度
glRotatef(yRot, 0.0f, 1.0f, 0.0f);

// 飞机
// 绿色
glColor3ub(0, 255, 0);
//画三角形
glBegin(GL_TRIANGLES);
         //机头-绿色
         //机头下巴
            glVertex3f(0.0f, 0.0f, 60.0f);
            glVertex3f(-15.0f, 0.0f, 30.0f);
            glVertex3f(15.0f,0.0f,30.0f);

//机头左脸
            glVertex3f(15.0f,0.0f,30.0f);
            glVertex3f(0.0f, 15.0f, 30.0f);
            glVertex3f(0.0f, 0.0f, 60.0f);

//机头右脸
            glVertex3f(0.0f, 0.0f, 60.0f);
            glVertex3f(0.0f, 15.0f, 30.0f);
            glVertex3f(-15.0f,0.0f,30.0f);

//机身--银色
glColor3ub(192,192,192);

//左侧机身
            glVertex3f(-15.0f,0.0f,30.0f);
            glVertex3f(0.0f, 15.0f, 30.0f);
            glVertex3f(0.0f, 0.0f, -56.0f);

//右侧机身
            glVertex3f(0.0f, 0.0f, -56.0f);
            glVertex3f(0.0f, 15.0f, 30.0f);
            glVertex3f(15.0f,0.0f,30.0f);

   //机身腹部
            glVertex3f(15.0f,0.0f,30.0f);
            glVertex3f(-15.0f, 0.0f, 30.0f);
            glVertex3f(0.0f, 0.0f, -56.0f);

// 左机翼
// 深灰
glColor3ub(64,64,64);

//翼展
            glVertex3f(0.0f,2.0f,27.0f);
            glVertex3f(-60.0f, 2.0f, -8.0f);
            glVertex3f(60.0f, 2.0f, -8.0f);

   //右机翼
            glVertex3f(60.0f, 2.0f, -8.0f);
            glVertex3f(0.0f, 7.0f, -8.0f);
            glVertex3f(0.0f,2.0f,27.0f);

   //左机翼
            glVertex3f(60.0f, 2.0f, -8.0f);
            glVertex3f(-60.0f, 2.0f, -8.0f);
            glVertex3f(0.0f,7.0f,-8.0f);

glVertex3f(0.0f,2.0f,27.0f);
glVertex3f(0.0f, 7.0f, -8.0f);
glVertex3f(-60.0f, 2.0f, -8.0f);

// 机尾
            //背鳍
            glColor3ub(255,255,0);
            glVertex3f(-30.0f, -0.50f, -57.0f);
            glVertex3f(30.0f, -0.50f, -57.0f);
            glVertex3f(0.0f,-0.50f,-40.0f);

glVertex3f(0.0f,-0.5f,-40.0f);
glVertex3f(30.0f, -0.5f, -57.0f);
glVertex3f(0.0f, 4.0f, -57.0f);

glVertex3f(0.0f, 4.0f, -57.0f);
glVertex3f(-30.0f, -0.5f, -57.0f);
glVertex3f(0.0f,-0.5f,-40.0f);

glVertex3f(30.0f,-0.5f,-57.0f);
glVertex3f(-30.0f, -0.5f, -57.0f);
glVertex3f(0.0f, 4.0f, -57.0f);

//红色机尾
            glColor3ub(255,0,0);
            glVertex3f(0.0f,0.5f,-40.0f);
            glVertex3f(3.0f, 0.5f, -57.0f);
            glVertex3f(0.0f, 25.0f, -65.0f);

glVertex3f(0.0f, 25.0f, -65.0f);
glVertex3f(-3.0f, 0.5f, -57.0f);
glVertex3f(0.0f,0.5f,-40.0f);

glVertex3f(3.0f,0.5f,-57.0f);
glVertex3f(-3.0f, 0.5f, -57.0f);
glVertex3f(0.0f, 25.0f, -65.0f);
glEnd();

glPopMatrix();

//显示结果
glutSwapBuffers();
}

//初始化
void SetupRC()
    {
    //白色光强度
    GLfloat ambientLight[] = { 1.0f, 1.0f, 1.0f, 1.0f };

glEnable(GL_DEPTH_TEST); //深度测试，背面消隐
glEnable(GL_CULL_FACE); //三角形里面不参与计算
glFrontFace(GL_CCW); //逆时针为正面

//启动光照
glEnable(GL_LIGHTING);

//设置光照模型为环境光
glLightModelfv(GL_LIGHT_MODEL_AMBIENT,ambientLight);

glEnable(GL_COLOR_MATERIAL); // 启动材料颜色跟踪

//材料正面满反射
glColorMaterial(GL_FRONT,GL_AMBIENT_AND_DIFFUSE);

//背景颜色
glClearColor(0.0f, 0.0f, 05.f,1.0f);
}

void SpecialKeys(int key, int x, int y)
    {
    if(key == GLUT_KEY_UP)
        xRot-= 5.0f;

if(key == GLUT_KEY_DOWN)
xRot += 5.0f;

if(key == GLUT_KEY_LEFT)
yRot -= 5.0f;

if(key == GLUT_KEY_RIGHT)
yRot += 5.0f;

if(key > 356.0f)
xRot = 0.0f;

if(key < -1.0f)
xRot = 355.0f;

if(key > 356.0f)
yRot = 0.0f;

if(key < -1.0f)
yRot = 355.0f;

glutPostRedisplay();
}

void ChangeSize(int w, int h)
    {
    GLfloat nRange = 80.0f;
    if(h == 0)
        h = 1;

glViewport(0, 0, w, h);

glMatrixMode(GL_PROJECTION);
glLoadIdentity();

if (w <= h)
        glOrtho (-nRange, nRange, -nRange*h/w, nRange*h/w, -nRange, nRange);
    else
        glOrtho (-nRange*w/h, nRange*w/h, -nRange, nRange, -nRange, nRange);

glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}

int main(int argc, char* argv[])
    {
    glutInit(&argc, argv);
    glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
    glutInitWindowSize(800,600);
    glutCreateWindow("Ambient Light Jet");
    glutReshapeFunc(ChangeSize);
    glutSpecialFunc(SpecialKeys);
    glutDisplayFunc(RenderScene);
    SetupRC();
    glutMainLoop();

return 0;
}

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