CY.hsin week_06

 1.Keyboard:

#include <gl/glut.h>

#include <stdio.h>

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glColor3f(1,1,0);

    glutSolidTeapot( 0.3 );

    glutSwapBuffers();

}

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

{

    printf("現在按下:%c 座標在:%d %d\n",key,x,y);

}

int main(int argc, char**argv)

{

    glutInit( &argc,argv);

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow("week06 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMainLoop();

}

2.Keyboard_mouse_motion

#include <gl/glut.h>

#include <stdio.h>

float x=0,y=0,z=0, oldX, oldY;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glTranslatef((x-150)/150.0,-(y-150)/150.0 , z);

    glColor3f(1,1,0);

    glutSolidTeapot( 0.3 );

    glPopMatrix();

    glutSwapBuffers();

}

void keyboard( unsigned char key ,int mouseX,int mouseY)

{

    printf("現在按下:%c 座標在:%d %d\n",key,mouseX,mouseY);

}

void mouse( int button, int state, int mouseX, int mouseY)

{

    oldX = mouseX; oldY = mouseY;

}

void motion(int mouseX,int mouseY)

{

    x += (mouseX-oldX);

    y += (mouseY-oldY);

    oldX = mouseX; oldY = mouseY;

    display();

}

int main(int argc, char**argv)

{

    glutInit( &argc,argv);

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow("week06 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}

2.Keyboard_mouse_motion可以左右拉動

#include <gl/glut.h>

#include <stdio.h>

float x=0,y=0,z=0,scale=1.0, oldX, oldY;

void display()

{

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

    glScalef(scale,scale,scale);

    glColor3f(1,1,0);

    glutSolidTeapot( 0.3 );

    glPopMatrix();

    glutSwapBuffers();

}

void keyboard( unsigned char key ,int mouseX,int mouseY)

{

    printf("現在按下:%c 座標在:%d %d\n",key,mouseX,mouseY);

}

void mouse( int button, int state, int mouseX, int mouseY)

{

    oldX = mouseX; oldY = mouseY;

}

void motion(int mouseX,int mouseY)

{

    if( mouseX>oldX ) scale = scale * 1.01;

    if( mouseX<oldX ) scale = scale * 0.99;

    oldX = mouseX; oldY = mouseY;

    display();

}

int main(int argc, char**argv)

{

    glutInit( &argc,argv);

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutCreateWindow("week06 keyboard");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}

3.Keyboard_mouse_motion 像maya一樣

#include <gl/glut.h>

#include <stdio.h>

float x=250,y=250,z=0,scale=1.0, angle=0.0, oldX, oldY;

int now=1;

void display()

{

    glClearColor(0.5, 0.5, 0.5, 1);

    glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

    glPushMatrix();

        glTranslatef((x-250)/250.0,-(y-250)/250.0, z);

        glRotatef(angle, 0, 0, 1);

    glScalef(scale,scale,scale);

    glColor3f(1,1,0);

    glutSolidTeapot( 0.3 );

    glPopMatrix();

    glutSwapBuffers();

}

void keyboard( unsigned char key ,int mouseX,int mouseY)

{

    if(key=='w' || key=='W')now=1;

    if(key=='e' || key=='E')now=2;

    if(key=='r' || key=='R')now=3;

}

void mouse( int button, int state, int mouseX, int mouseY)

{

    oldX = mouseX; oldY = mouseY;

}

void motion(int mouseX,int mouseY)

{

    if(now==1){

        x+= (mouseX-oldX);

        y+= (mouseY-oldY);

    }else if(now==2){

        angle += (mouseX-oldX);

    }else if(now==3){

        if( mouseX>oldX ) scale = scale * 1.01;

        if( mouseX<oldX ) scale = scale * 0.99;

    }

    oldX = mouseX; oldY = mouseY;

    display();

}

int main(int argc, char**argv)

{

    glutInit( &argc,argv);

    glutInitDisplayMode( GLUT_DOUBLE | GLUT_DEPTH );

    glutInitWindowSize(500,500);

    glutCreateWindow("week06 keyboard mouse motion");

    glutDisplayFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

    glutMainLoop();

}