*** 開檔、寫檔、關檔
1.#include <stdio.h>
int main()
{
FILE*fout=fopen("file.txt","w+");
printf("Hello World\n");
fprintf(fout,"Hello World\n");
fclose(fout);
}
2.
///練習開檔、讀檔read、關檔
#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");
fscanf(fin,"%s %d",line,&a);
printf("讀到了字串:%s 及整數%d\n");
fclose(fin);
}
3.
借用上周最後寫的程式碼來用
#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;
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");
}
void keyboard(unsigned char key,int x,int y)
{
if(key=='0')angleID=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)///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");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutDisplayFunc(display);
glutMainLoop();
}
4.
#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++){
printf("%.2f",angle[i]);
fprintf(fout,"%.2f",angle[i]);
}
printf("\n");
fprintf(fout,"\n");
}
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();
}
void keyboard(unsigned char key,int x,int y)
{
if(key=='r'){
myRead();
}
if(key=='0')angleID=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)///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");
glutMouseFunc(mouse);
glutMotionFunc(motion);
glutKeyboardFunc(keyboard);
glutDisplayFunc(display);
glutMainLoop();
}
***在notepad++將working dir中 雙引號的內容改成小數點
此時於codeblocks執行程式會出現錯誤，因此要將桌面freeglut資料夾中的freeglut.dll 手動複製到現在在做的檔案
***計時器
#include <GL/glut.h>
#include <stdio.h>
void timer(int t){
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");
}
void display()
{
}
int main(int argc,char ** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Week14");
glutTimerFunc(3000,timer,0);
glutDisplayFunc(display);
glutMainLoop();
}
稍作修改 (在teams week14下載do.wav放在freeglut的bin)
#include <GL/glut.h>
#include <mmsystem.h>
#include <stdio.h>
void timer(int t){
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);
printf("設好鬧鐘 再回去睡");
}
void display()
{
}
int main(int argc,char ** argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutCreateWindow("Week14");
glutTimerFunc(3000,timer,0);
glutDisplayFunc(display);
glutMainLoop();
}
沒有留言:
張貼留言