opengl实现用键盘使物体上下移动还有照相机的移动

[zxiaolu1]

代码不知道哪里错了，运行结果不对，按键盘没有反应，哪位大神指点一下

// This assignment may cost you some efferts, so I give you some important HINTS, hope that may help you.
// Enjoy the coding and thinking, do pay more attention to the library functions used in OPENGL, such as how they are used? what are the parameters used? and why?

// 实验报告里面多写点感想，即对函数的理解，以及调用的顺序，步骤等。思考为什么是这样子调用的，为什么参数是这样子设置的？。。。等等你觉得值得研究的问题。
#include <stdlib.h>
#include "glut.h"

//定义变换控制变量
//float fTranslate;
float fRotate    = 0.0f;
float fScale     = 1.0f;	// set inital scale value to 1.0f
float fRevolve=0.0f;
bool bPersp = false;
bool bAnim = false;//about旋转
bool bWire = false;
bool tAnim=false;
//定义窗口大小
int wHeight = 0;
int wWidth = 0;

//todo
//hint: some additional parameters may needed here when you operate the teapot

void Draw_Leg()
{
	glScalef(1, 1, 3);//缩放
	glutSolidCube(1.0);//创建实心立方体
}

void Draw_Scene()
{   //画茶壶 
	glPushMatrix();
	glTranslatef(0, 0, 4+1);//移动
	glRotatef(90, 1, 0, 0); //旋转。notice the rotation here, you may have a TRY removing this line to see what it looks like.
	//todo; hint: when operate the teapot, you may need to change some parameters
	//（0,5,0）
	glutSolidTeapot(1);
	glPopMatrix();
	//画桌面
	glPushMatrix();
	glTranslatef(0, 0, 3.5);
	glScalef(5, 4, 1);
	glutSolidCube(1.0);
	glPopMatrix();
	//画四条腿
	glPushMatrix();
	glTranslatef(1.5, 1, 1.5);
	Draw_Leg();
	glPopMatrix();

	glPushMatrix();
	glTranslatef(-1.5, 1, 1.5);
	Draw_Leg();
	glPopMatrix();

	glPushMatrix();
	glTranslatef(1.5, -1, 1.5);
	Draw_Leg();
	glPopMatrix();

	glPushMatrix();
	glTranslatef(-1.5, -1,1.5);
	Draw_Leg();
	glPopMatrix();

}

void updateView(int width, int height)//切换投影方式
{
	glViewport(0,0,width,height);						// Reset The Current Viewport

	glMatrixMode(GL_PROJECTION);						// Select The Projection Matrix
	glLoadIdentity();									// Reset The Projection Matrix

	float whRatio = (GLfloat)width/(GLfloat)height;

	if (bPersp){
		//todo when 'p' operation, hint: use FUNCTION gluPerspective
	}
	else
		glOrtho(-3 ,3, -3, 3,-100,100);

	glMatrixMode(GL_MODELVIEW);							// Select The Modelview Matrix
}

void reshape(int width, int height)
{
	if (height==0)										// Prevent A Divide By Zero By
	{
		height=1;										// Making Height Equal One
	}

	wHeight = height;
	wWidth = width;

	updateView(wHeight, wWidth);
}

void idle()
{
	glutPostRedisplay();//窗口重新绘制
}
float size=0.1f;
float eye[] = {0, 0, 8};
float center[] = {0, 0, 0};
float move[]={0,0,0};
//todo; hint: you may need another ARRAY when you operate the teapot
//用键盘操控图形
void key(unsigned char k, int x, int y)
{
	switch(k)
	{
	case 27://27是ESC键
	case 'q': {exit(0); break; }
	case 'p': {bPersp = !bPersp; updateView(wHeight, wWidth);break; }
//旋转&暂停 现况&填充
	case ' ': {bAnim = !bAnim; break;}
	case 'o': {bWire = !bWire; break;}
//相机移动
	case 'a': {//todo, hint: eye[] and center[] are the keys to solve the problems
		eye[]={3,0,8};
		break;
			  }
	case 'd': {//todo
		eye[]={-3,0,8};
		break;
			  }
	case 'w': {//todo
		eye[]={0,3,8};
		//center[]={0,13,0};
		break;
			  }
	case 's': {//todo
		eye[]={0,-3,8};
		//center[]={0,13,0};
		break;
			  }
	case 'z': {//todo
		eye[]={8,-8,-8};
		center[]={0,-8,0};
		break;
			  }
	case 'c': {//todo
		eye[]={-8,-8,8};
		center[]={0,-8,0};
		break;
			  }

			  //茶壶相关操作
	case 'l': {//todo, hint:use the ARRAY that you defined, and notice the teapot can NOT be moved out the range of the table.
		//glPushMatrix();
		   move[0]=move[0]+size;
		  // glTranslatef(move[0],move[1],move[2]);	
		   //glutSolidTeapot(1);									
	    //glPopMatrix();
		break;
			  }
	case 'j': {//todo
		//glPushMatrix();
		   move[0]=move[0]-size;
		  // glTranslatef(move[0],move[1],move[2]);	
		   //glutSolidTeapot(1);									
	    //glPopMatrix();
		break;
			  }
	case 'i': {//todo
		//glPushMatrix();
		   move[2]+=size;
		   //glTranslatef(move[0],move[1],move[2]);	
		  // glutSolidTeapot(1);									
	    //glPopMatrix();
		break;
			  }
	case 'k': {//todo
		//glPushMatrix();
		   move[2]-=size;
		//   glTranslatef(move[0],move[1],move[2]);	
		 //  glutSolidTeapot(1);									
	   // glPopMatrix();
		break;
			  }
	case 'e': {//todo 旋转
		tAnim=!tAnim;
		/*if(tAnim)
		{
		glPushMatrix();
		  glRotatef(fRotate, 0, 1.0f, 0);			
		  glutSolidTeapot(1);
	    glPopMatrix();
		fRotate+=0.1f;*/
		break;
			  }
	}
}


void redraw() 
{

	glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
	glLoadIdentity();									// Reset The Current Modelview Matrix
	//视点转换
	gluLookAt(eye[0], eye[1], eye[2],
		center[0], center[1], center[2],
		0, 1, 0);				// 场景（0，0，0）的视点中心 (0,5,50)，Y轴向上
	//线框模式和填充模式转换
	if (bWire) {
		glPolygonMode(GL_FRONT_AND_BACK, GL_LINE);  
	}
	else {
		glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
	}
	//光照
	glEnable(GL_DEPTH_TEST);
	glEnable(GL_LIGHTING);//启动光照
	GLfloat white[] = { 1.0, 1.0, 1.0, 1.0 };
	GLfloat light_pos[] = {5,5,5,1};

	glLightfv(GL_LIGHT0, GL_POSITION, light_pos);//光源位置，颜色
	glLightfv(GL_LIGHT0, GL_AMBIENT, white);//环境光
	glEnable(GL_LIGHT0);//启动光源

	//	glTranslatef(0.0f, 0.0f,-6.0f);			// Place the triangle at Center
	glRotatef(fRotate, 0, 1.0f, 0);			// Rotate around Y axis
	glRotatef(-90, 1, 0, 0);
	glScalef(0.2, 0.2, 0.2);
	Draw_Scene();	// Draw Scene

	glRotatef(fRevolve, 0, 1.0f, 0);			// Rotate around Y axis
	glRotatef(-90, 1, 0, 0);
	glScalef(0.2, 0.2, 0.2);
	glutSolidTeapot(1);

	 glTranslatef(move[0],move[1],move[2]);	
	 glutSolidTeapot(1);	

	if (bAnim) fRotate    += 0.5f;
	if (tAnim) fRevolve+=0.3f;
	//todo; hint: when you want to rotate the teapot, you may like to add another line here =)
	glutSwapBuffers();
}

int main (int argc,  char *argv[])
{
	glutInit(&argc, argv);
	glutInitDisplayMode(GLUT_RGBA | GLUT_DEPTH | GLUT_DOUBLE);
	glutInitWindowSize(480,480);
	int windowHandle = glutCreateWindow("Ex 3");

	glutDisplayFunc(redraw);
	glutReshapeFunc(reshape);	
	glutKeyboardFunc(key);
	glutIdleFunc(idle);

	glutMainLoop();
	return 0;
}

[wdlove58]

case 'z': {//todo eye[]={8,-8,-8}; center[]={0,-8,0}; break; } case 'c': {//todo eye[]={-8,-8,8}; center[]={0,-8,0}; break; 你指的移动不了是指按z和c键不能移动吧，是设置的值8太大了，移动到屏幕外去了，所以屏幕什么都没有。我把你设置的8改为2后，运行的可以正常移动。