week14
(1)
1-1.開 CodeBlocks/empty file-->week14-1.cpp
1-2.寫程式
#include<stdio.h>
int main(){指標fout開檔案(檔名,write模式)
FILE*fout=fopen("file.txt,","w+");
printf("Hello World\n");
fprintf(fout,"Hello World\n");
fclose(fout);關檔案
}
1-3.
#include<stdio.h>
int main(){
FILE*fout=fopen("file.txt,","w+");
fprintf(fout,"3.1415926\n");
fclose(fout);
float angle=0;
FILE*fin=fopen("file.txt","r");
fscanf(fin,"%f",&angle);
printf("讀到角度:%f",angle);
fclose(fin);
}
1-4.開上週程式改
#include <GL/glut.h>
#include <stdio.h>
float angle[20], oldX=0;
int angleID=0;
FILE * fout =NULL;
void myWrite(){
if(fout==NULL)
fout=fopen("file.txt,","w+");
for(int i=0;i<20;i++){
printf("%.1f",angle[i]);
}
}
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)
{
oldX=x;
}
void motion(int x,int y)
{
angle[angleID]+=(x-oldX);
myWrite();
oldX=x;
glutPostRedisplay();
}
(2)
2-1.
#include <GL/glut.h>
#include <stdio.h>
float angle[20], oldX=0;
int angleID=0;
FILE * fout =NULL;
void myWrite(){
if(fout==NULL)
fout=fopen("file.txt,","w+");
for(int i=0;i<20;i++){
printf( " %.1f ",angle[i]);
fprintf(fout," %.1f ",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)
{
oldX=x;
}
void motion(int x,int y)
{
angle[angleID]+=(x-oldX);
myWrite();
oldX=x;
glutPostRedisplay();
}
2-2.
#include <GL/glut.h>
#include <stdio.h>
float angle[20], oldX=0;
int angleID=0;///關節ID
FILE * fout =NULL,*fin=NULL;
void myWrite(){
if(fout==NULL)
fout=fopen("file.txt,","w+");
for(int i=0;i<20;i++){
printf("%.1f",angle[i]);
fprintf(fout," %.1f ",angle[i]);
}f後面要加空格
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)
{
oldX=x;
}
void motion(int x,int y)
{
angle[angleID]+=(x-oldX);
myWrite();
oldX=x;
glutPostRedisplay();
}
長按r就會顯示錄到的動作
2-3.
(1)用notepad++ 開 cbp檔 ---> 把working_dir 裡的路徑改成"."
(2)把freeglut裡的freeglut.dll複製到專案中
這樣txt就會放到程式專案目錄了
(3)
3-1.開新專案week14_timer
3-2.
#include <GL/glut.h>
#include <stdio.h>
void timer(int t){
printf("起床,現在時間 : %d\n",t);
}
void display(){
}
int main(int argc,char**argv)
{
glutInit(&argc,argv);
glutInitDisplayMode(GLUT_DOUBLE|GLUT_DEPTH);
glutCreateWindow("Week14 timer");
glutTimerFunc(1000,timer,1);
glutTimerFunc(2000,timer,2);
glutTimerFunc(3000,timer,3);
glutTimerFunc(4000,timer,4);
glutTimerFunc(5000,timer,5);
glutDisplayFunc(display);
glutMainLoop();
}
#include <GL/glut.h>
#include <stdio.h>
void timer(int t){
printf("起床,現在時間 : %d\n",t);
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(5000,timer,0);
glutDisplayFunc(display);
glutMainLoop();
}
3-4.
#include <GL/glut.h>
#include <stdio.h>
#include <mmsystem.h>
void timer(int t){
printf("起床,現在時間 : %d\n",t);
PlaySound("do.wav",NULL,SND_ASYNC);
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(5000,timer,0);
glutDisplayFunc(display);
glutMainLoop();
}
會有噹噹聲
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