mouse滑鼠Week03

 1.Glut開啟專案week03_mouse放上10行程式碼，加上新的程式碼

#include <stdio.h>

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

    printf("Hello Mouse!\n");

}

glutMouseFunc(mouse);

2.把printf("Hello Mouse!\n");去掉，加上printf("%d %d %d %d\n",button,state,x,y)

button 左鍵=0、中鍵=1、右鍵=2，state按下=0、鬆開=1，(x,y)=座標

3.把printf("%d %d %d %d\n",button,state,x,y)去掉，加上if(state==GLUT_DOWN)

        printf("glVertex2f((%d-150)/150.0,-(%d-150)/150.0);\n",x,y);

4.到https://jsyeh.org/3dcg10下載data,win32，windows.zip解壓縮把data丟進windows開啟Transformation.exe

5.glTranslatef(x,y,z)按住要調整的上下移動

6.新增專案week03_mouse_glTranslatef，要讓茶壺跟著mouse走，新增程式碼

7.glRotatef(角度,x,y,z)可以用右手比讚來判斷，轉動軸為大拇指，轉動方向為其他手指，y軸轉就比個讚y為轉動軸，-y是倒讚，以此類推

8.新增專案week03_mouse_glRotatef，拿week03_mouse_glTranslatef的程式碼改

9.新增專案week03_mouse_translatef_rotatef，拿week03_mouse_glRotatef的程式碼改