Week 08

NeHe Lesson32.zip 解壓縮，玩射擊遊戲。 

Light Material(打光)、Texture(貼圖)的範例程式

接下來就是要試著做上面那個射擊遊戲囉~~~~

當滑鼠按下時 發出槍聲 並印出Shot!

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

{

    if(state== GLUT_DOWN){

        PlaySound("Shot.wav",NULL,SND_ASYNC);

        printf("Shot!\n");

    }

}

任意按一鍵 跳出全螢幕

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

{

    exit(0);

}

設立浮點數 作為物體座標

float potX=-1 ,potY=0;

修改display 畫出茶壺 並且讓他依照座標跑

void display()

{

    potX+=0.01;

    if(potX>1.1) potX=-1.1;

    glClearColor(0.5,0.5,0.5,0);

    glClear(GL_COLOR_BUFFER_BIT);

    glPushMatrix();

        glTranslated(potX,potY,0);

        glutSolidTeapot(0.05);

    glPopMatrix();

    glFlush();

}

在main() 裡面增加

glutIdleFunc(display);

在系統閒暇時 就執行display的函數

如果點擊位置接近 則有音效跑出

float mouseX=2*x/1280.0 -1, mouseY=2*y/1024 -1;

    if( fabs(mouseX - potX)< 0.1 && fabs(mouseY - potY)<0.1){

        PlaySound("glass.wav",NULL, SND_ASYNC);

        printf("You got it!");

    }

#include <GL/glut.h>

#include <mmsystem.h>

#include <stdio.h>

#include <math.h>

float potX=-1 ,potY=0;

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

{

    if(state== GLUT_DOWN){

        PlaySound("Shot.wav",NULL,SND_ASYNC);

        printf("Shot!\n");

        }

    float mouseX=2*x/1280.0 -1, mouseY=2*y/1024 -1;

    if( fabs(mouseX - potX)< 0.1 && fabs(mouseY - potY)<0.1){

        PlaySound("glass.wav",NULL, SND_ASYNC);

        printf("You got it!");

    }

}

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

{

    exit(0);

}

void display()

{

    potX+=0.01;

    if(potX>1.1) potX=-1.1;

    glClearColor(0.5,0.5,0.5,0);

    glClear(GL_COLOR_BUFFER_BIT);

    glPushMatrix();

        glTranslated(potX,potY,0);

        glutSolidTeapot(0.05);

    glPopMatrix();

    glFlush();

}

int main(int argc,char **argv)

{

    glutInit(&argc,argv);

    glutCreateWindow("01160536");

    glutFullScreen();

    glutDisplayFunc(display);

    glutIdleFunc(display);

    glutKeyboardFunc(keyboard);

    glutMouseFunc(mouse);

    glutMainLoop();

}