主題
一.寫檔、讀檔
二.關節、做動畫
三.計時器 glutTimeFunctimer，時間
四.播放聲音
1.練習寫檔讀檔
#include <stdio.h>
int main()
{
FILE * fout = fopen("file.txt","w+");///write+順便新增
printf("Hellow World\n");
fprintf(fout,"Hellow World\n");///f是指檔案，在檔案裡面寫Hellow World
fclose(fout);///f是指檔案，這行是指關閉檔案
}
#include <stdio.h>
int main()
{
FILE * fout = fopen("file2.txt","w+");
fprintf(fout,"angle1 %d\n",999);
fclose(fout);
char line[200];
int a;
FILE * fin = fopen("file2.txt","r");///讀檔
fscanf(fin,"%s %d",line,&a);
printf("讀到了字串:%s 及整數:%d\n",line,a);
fclose(fin);
}
複製上週week13的最後一個程式碼
#include <stdio.h>
#include <GL/glut.h>
float angle[20],oldX=0;
int angleID=0;///0:第0個關節，1:第一個關節，2:第二個關節
FILE * fout = NULL;
void myWrite()
{
if(fout==NULL)fout = fopen("file.txt","w+");
for(int i=0;i<20;i++)
{
fprintf(fout,"%.2f",angle[i]);
}
}
void keyboard(unsigned char key,int x,int y)
{
if(key=='0')angleID=0;///預設這是第一個
if(key=='1')angleID=1;
if(key=='2')angleID=2;
if(key=='3')angleID=3;
}
void mouse(int button, int state , int x, int y)///mouse按下去
{
oldX = x;
}
void motion(int x,int y)
{
angle[angleID] += (x-oldX);
myWrite();
oldX=x;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///白色的
glRectf(0.3,0.5,-0.3,-0.2);///身體,瘦身
glPushMatrix();///右半邊，掛的位置也改了
glTranslatef(0.3,0.5,0);///等下要掛在0.5,0.5
glRotatef(angle[0],0,0,1);///(2)旋轉
glTranslatef(-0.3,-0.4,0);///(1)先把旋轉中心放正中心
glColor3f(1,0,0);///紅色的
glRectf(0.3,0.5,0.8,0.3);///右上手臂
glPushMatrix();
glTranslatef(0.8,0.4,0);///(3)把下手肘掛在關節上
glRotatef(angle[1],0,0,1);///(2)旋轉
glTranslatef(-0.8,-0.4,0);///(1)再畫下手肘
glColor3f(0,1,0);///綠色的
glRectf(0.8,0.5,1.1,0.3);///再畫右下手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();///左半邊，掛的位置也改了
glTranslatef(-0.3,0.5,0);///等下要掛在0.5,0.5
glRotatef(angle[2],0,0,1);///(2)旋轉
glTranslatef(+0.3,-0.4,0);///(1)先把旋轉中心放正中心
glColor3f(1,0,0);///紅色的
glRectf(-0.3,0.5,-0.8,0.3);///左上手臂
glPushMatrix();
glTranslatef(-0.8,0.4,0);///(3)把下手肘掛在關節上
glRotatef(angle[3],0,0,1);///(2)旋轉
glTranslatef(+0.8,-0.4,0);///(1)再畫下手肘
glColor3f(0,1,0);///綠色的
glRectf(-0.8,0.5,-1.1,0.3);///再畫左下手肘
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc,char ** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutInitWindowSize(600,600);
glutCreateWindow("Week14 TRT Angle Write");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutDisplayFunc(display);
glutMainLoop();
}
#include <stdio.h>
#include <GL/glut.h>
float angle[20],oldX=0;
int angleID=0;///0:第0個關節，1:第一個關節，2:第二個關節
FILE * fout = NULL;
void myWrite()
{
if(fout==NULL)fout = fopen("file.txt","w+");
for(int i=0;i<20;i++)
{
printf("%.2f",angle[i]);
fprintf(fout,"%.2f",angle[i]);
}
printf("\n");
fprintf(fout,"\n");
///少了fclose，因為不想要寫一行就結束，想寫多一點
}
void keyboard(unsigned char key,int x,int y)
{
if(key=='0')angleID=0;///預設這是第一個
if(key=='1')angleID=1;
if(key=='2')angleID=2;
if(key=='3')angleID=3;
}
void mouse(int button, int state , int x, int y)///mouse按下去
{
oldX = x;
}
void motion(int x,int y)
{
angle[angleID] += (x-oldX);
myWrite();
oldX=x;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///白色的
glRectf(0.3,0.5,-0.3,-0.2);///身體,瘦身
glPushMatrix();///右半邊，掛的位置也改了
glTranslatef(0.3,0.5,0);///等下要掛在0.5,0.5
glRotatef(angle[0],0,0,1);///(2)旋轉
glTranslatef(-0.3,-0.4,0);///(1)先把旋轉中心放正中心
glColor3f(1,0,0);///紅色的
glRectf(0.3,0.5,0.8,0.3);///右上手臂
glPushMatrix();
glTranslatef(0.8,0.4,0);///(3)把下手肘掛在關節上
glRotatef(angle[1],0,0,1);///(2)旋轉
glTranslatef(-0.8,-0.4,0);///(1)再畫下手肘
glColor3f(0,1,0);///綠色的
glRectf(0.8,0.5,1.1,0.3);///再畫右下手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();///左半邊，掛的位置也改了
glTranslatef(-0.3,0.5,0);///等下要掛在0.5,0.5
glRotatef(angle[2],0,0,1);///(2)旋轉
glTranslatef(+0.3,-0.4,0);///(1)先把旋轉中心放正中心
glColor3f(1,0,0);///紅色的
glRectf(-0.3,0.5,-0.8,0.3);///左上手臂
glPushMatrix();
glTranslatef(-0.8,0.4,0);///(3)把下手肘掛在關節上
glRotatef(angle[3],0,0,1);///(2)旋轉
glTranslatef(+0.8,-0.4,0);///(1)再畫下手肘
glColor3f(0,1,0);///綠色的
glRectf(-0.8,0.5,-1.1,0.3);///再畫左下手肘
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc,char ** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutInitWindowSize(600,600);
glutCreateWindow("Week14 TRT Angle Write");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutDisplayFunc(display);
glutMainLoop();
}
#include <GL/glut.h>
#include <stdio.h>
float angle[20], oldX=0;
int angleID=0; ///0:第0個關節，1:第一個關節，2:第二個關節
FILE*fout=NULL, *fin=NULL;
void myWrite()
{
if(fout==NULL) fout=fopen("file.txt", "w+");
for(int i=0; i<20; i++){
fprintf(fout, "%.2f", angle[i]);
}
}
void myRead()
{
if(fout!=NULL)
{
fclose(fout);
fout=NULL;
}
if(fin==NULL) fin=fopen("file.txt", "r");
for(int i=0; i<20; i++){
fscanf(fin, "%f", &angle[i]);
}
glutPostRedisplay();///重畫畫面
}
void keyboard(unsigned char key,int x,int y)
{
if(key=='r')
{
myRead();
}
if(key=='0')angleID=0;///預設這是第一個
if(key=='1')angleID=1;
if(key=='2')angleID=2;
if(key=='3')angleID=3;
}
void mouse(int button, int state , int x, int y)///mouse按下去
{
oldX = x;
}
void motion(int x,int y)
{
angle[angleID] += (x-oldX);
myWrite();
oldX=x;
glutPostRedisplay();
}
void display()
{
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glColor3f(1,1,1);///白色的
glRectf(0.3,0.5,-0.3,-0.2);///身體,瘦身
glPushMatrix();///右半邊，掛的位置也改了
glTranslatef(0.3,0.5,0);///等下要掛在0.5,0.5
glRotatef(angle[0],0,0,1);///(2)旋轉
glTranslatef(-0.3,-0.4,0);///(1)先把旋轉中心放正中心
glColor3f(1,0,0);///紅色的
glRectf(0.3,0.5,0.8,0.3);///右上手臂
glPushMatrix();
glTranslatef(0.8,0.4,0);///(3)把下手肘掛在關節上
glRotatef(angle[1],0,0,1);///(2)旋轉
glTranslatef(-0.8,-0.4,0);///(1)再畫下手肘
glColor3f(0,1,0);///綠色的
glRectf(0.8,0.5,1.1,0.3);///再畫右下手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();///左半邊，掛的位置也改了
glTranslatef(-0.3,0.5,0);///等下要掛在0.5,0.5
glRotatef(angle[2],0,0,1);///(2)旋轉
glTranslatef(+0.3,-0.4,0);///(1)先把旋轉中心放正中心
glColor3f(1,0,0);///紅色的
glRectf(-0.3,0.5,-0.8,0.3);///左上手臂
glPushMatrix();
glTranslatef(-0.8,0.4,0);///(3)把下手肘掛在關節上
glRotatef(angle[3],0,0,1);///(2)旋轉
glTranslatef(+0.8,-0.4,0);///(1)再畫下手肘
glColor3f(0,1,0);///綠色的
glRectf(-0.8,0.5,-1.1,0.3);///再畫左下手肘
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc,char ** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutInitWindowSize(600,600);
glutCreateWindow("Week14 TRT Angle Write And Read");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutDisplayFunc(display);
glutMainLoop();
}
修正目前的工作目錄
希望工作目錄在我們程式碼的那個目錄 week14 TRT_write_and_read
老師範例 C:\Users\user\Desktop\freeglut
我的路徑 D:\School\大二下課程\電腦圖學\電腦圖學必備檔案\freeglut\bin
1.先去下載notepad++
2.去week14 TRT_write_and_read找出.cbp檔，並用notepad++開啟
3.<Option working_dir="D:\School\大二下課程\電腦圖學\電腦圖學必備檔案\freeglut\bin" />
==>要修改成<Option working_dir="." />
4.然後去D:\School\大二下課程\電腦圖學\電腦圖學必備檔案\freeglut\bin =>複製freeglut.dll
貼到week14 TRT_write_and_read裡面
5.最後重開專案就會發現目錄被改好了
計時器
#include <GL/glut.h>
#include <stdio.h>
void timer(int t)///t的單位是ms
{ ///1000代表1秒,1500代表1.5秒
printf("鬧鐘%d,我起床了\n",t);///起床
printf("設定下一個鬧鐘\n");
glutTimerFunc(2000,timer,t+1);///2秒後
printf("設定好鬧鐘,再回去睡\n");
}
void display()
{
}
int main(int argc,char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14 timer");
glutTimerFunc(3000,timer,0);
glutDisplayFunc(display); ///不放Idle
glutMainLoop();
}
#include <GL/glut.h>
#include <stdio.h>
#include <mmsystem.h>
void timer(int t)///t的單位是ms
{ ///1000代表1秒,1500代表1.5秒
printf("鬧鐘%d,我起床了\n",t);///起床
PlaySound("do.wav",NULL,SND_ASYNC);
printf("設定下一個鬧鐘\n");
glutTimerFunc(2000,timer,t+1);///2秒後
///printf("設定好鬧鐘,再回去睡\n");
}
void display()
{
}
int main(int argc,char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("week14 timer");
glutTimerFunc(3000,timer,0);
glutDisplayFunc(display); ///不放Idle
glutMainLoop();
}
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