一:寫檔、關檔、讀檔
1-1:
#include <stdio.h>
int main()
{
FILE * fout =fopen("file.txt","w+");///開啟檔案
printf("Hello World\n");
fprintf(fout,"Hello World\n");///寫檔案
fclose(fout);///關閉檔案
}
#include <stdio.h>
int main()
{
FILE * fout =fopen("file.txt","w+");///開啟檔案
printf("Hello World\n");
fprintf(fout,"Hello World\n");///寫檔案
fclose(fout);///關閉檔案
}
1-2:
#include <stdio.h>
int main()
{
FILE * fout =fopen("file2.txt","w+");///開啟檔案
fprintf(fout,"angle1 %d\n", 999);///寫檔案
fclose(fout);///關閉檔案
char line[200];
int a;
FILE * fin = fopen("file2.txt","r");///開啟檔案
fscanf(fin,"%s %d",line, &a);///寫檔案
printf("讀到了字串:%s 及整數%d\n", line, a);
fclose(fin);///關閉檔案
}
二:使用week13_TRT，進行寫檔、讀檔
2-1:動作寫進檔
#include <GL/glut.h>
#include <stdio.h>///為了printf,fopen,fclose...
float angle[20], oldX=0;
int angleID=0;///0:第0個關節, 1:第1個關節...
FILE * fout=NULL;
void myWrite(){///寫進檔
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");
}
void keyboard(unsigned char key, int x, int y){///鍵盤數字鍵決定旋轉部位
if(key=='0') angleID=0;///預設0
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){
oldX=x;
}
void motion(int x, int y){
angle[angleID]+=(x-oldX);
myWrite();
oldX=x;
glutPostRedisplay();///重畫畫面
}
void display()
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glColor3f(1, 1, 1);
glRectf(0.3, 0.5, -0.3, -0.2);///身體瘦身(對比1)
glPushMatrix();///右半邊
glTranslatef(0.3, 0.5, 0);
glRotatef(angle[0], 0, 0, 1);///旋轉
glTranslatef(-0.3, -0.4, 0);///旋轉中心放正中心
glColor3f(1, 0, 0);
glRectf(0.3, 0.5, 0.8, 0.3);///右上手臂
glPushMatrix();
glTranslatef(0.8, 0.4, 0);///把下手肘掛在關節上
glRotatef(angle[1], 0, 0, 1);///旋轉
glTranslatef(-0.8, -0.4, 0);///把下手肘的旋轉中心放正中心
glColor3f(0, 1, 0);
glRectf(0.8, 0.5, 1.1, 0.3);///右下手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();///左半邊
glTranslatef(-0.3, 0.5, 0);
glRotatef(angle[2], 0, 0, 1);///旋轉
glTranslatef(+0.3, -0.4, 0);///旋轉中心放正中心
glColor3f(1, 0, 0);
glRectf(-0.3, 0.5, -0.8, 0.3);///左上手臂
glPushMatrix();
glTranslatef(-0.8, 0.4, 0);///把下手肘掛在關節上
glRotatef(angle[3], 0, 0, 1);///旋轉
glTranslatef(+0.8, -0.4, 0);///把下手肘的旋轉中心放正中心
glColor3f(0, 1, 0);
glRectf(-0.8, 0.5, -1.1, 0.3);///左下手肘
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH );
//glutInitWindowSize(600, 600);
glutCreateWindow("week14_rect_TRT");
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(display);
glutMainLoop();
}
2-2:增加讀檔
#include <GL/glut.h>
#include <stdio.h>///為了printf,fopen,fclose...
float angle[20], oldX=0;
int angleID=0;///0:第0個關節, 1:第1個關節...
FILE * fout=NULL, * fin=NULL;
void myWrite(){///寫進檔
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");
}
void myRead(){///讀檔
if(fout!=NULL){
fclose(fout);///關掉還在讀的檔案
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){///鍵盤數字鍵決定旋轉部位
if(key=='0') angleID=0;///預設0
if(key=='1') angleID=1;
if(key=='2') angleID=2;
if(key=='3') angleID=3;
if(key=='r'){
myRead();
}
}
void mouse(int button, int state, int x, int y){
oldX=x;
}
void motion(int x, int y){
angle[angleID]+=(x-oldX);
myWrite();
oldX=x;
glutPostRedisplay();///重畫畫面
}
void display()
{
glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
glColor3f(1, 1, 1);
glRectf(0.3, 0.5, -0.3, -0.2);///身體瘦身(對比1)
glPushMatrix();///右半邊
glTranslatef(0.3, 0.5, 0);
glRotatef(angle[0], 0, 0, 1);///旋轉
glTranslatef(-0.3, -0.4, 0);///旋轉中心放正中心
glColor3f(1, 0, 0);
glRectf(0.3, 0.5, 0.8, 0.3);///右上手臂
glPushMatrix();
glTranslatef(0.8, 0.4, 0);///把下手肘掛在關節上
glRotatef(angle[1], 0, 0, 1);///旋轉
glTranslatef(-0.8, -0.4, 0);///把下手肘的旋轉中心放正中心
glColor3f(0, 1, 0);
glRectf(0.8, 0.5, 1.1, 0.3);///右下手肘
glPopMatrix();
glPopMatrix();
glPushMatrix();///左半邊
glTranslatef(-0.3, 0.5, 0);
glRotatef(angle[2], 0, 0, 1);///旋轉
glTranslatef(+0.3, -0.4, 0);///旋轉中心放正中心
glColor3f(1, 0, 0);
glRectf(-0.3, 0.5, -0.8, 0.3);///左上手臂
glPushMatrix();
glTranslatef(-0.8, 0.4, 0);///把下手肘掛在關節上
glRotatef(angle[3], 0, 0, 1);///旋轉
glTranslatef(+0.8, -0.4, 0);///把下手肘的旋轉中心放正中心
glColor3f(0, 1, 0);
glRectf(-0.8, 0.5, -1.1, 0.3);///左下手肘
glPopMatrix();
glPopMatrix();
glutSwapBuffers();
}
int main(int argc, char**argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH );
//glutInitWindowSize(600, 600);
glutCreateWindow("week14_rect_TRT");
glutKeyboardFunc(keyboard);
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutDisplayFunc(display);
glutMainLoop();
}
3-1: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
printf("鬧鐘%d, 我起床了\n",t);
printf("設定下一個鬧鐘\n");
glutTimerFunc(1000,timer,t+1);
printf("設好鬧鐘<再回去睡\n");
}
void display()
{
}
int main(int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week14_timer");
glutTimerFunc(3000,timer,0);
glutDisplayFunc(display);
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
printf("鬧鐘%d, 我起床了\n",t);
PlaySound("do.wav",NULL,SND_ASYNC);
printf("設定下一個鬧鐘\n");
glutTimerFunc(1000,timer,t+1);
}
void display()
{
}
int main(int argc, char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("week14_timer");
glutTimerFunc(3000,timer,0);
glutDisplayFunc(display);
glutMainLoop();
}
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