Y14

WEEK14

今天的程式TIMER

glutTimerFunc(timer參數

另外準備void timer(int t)...

Codeblocks:File-New-Project,glut專案

#include <GL/glut.h>

float angle=0;

void display()

{

glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);

glPushMatrix();

  g;Roratef(angle,0,0,1);

  glutSolidTeapot(0.3);

  glPopMatrix();

  glutSwapBuffers();

}Week14_10160916_楊采蓮,

void timer(int argc,char** argv)

{

   glutInit(&argc, argc);

   glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);

   glutCreateWindow("week14");

   glutDisplayFunc(display);

   glutTimerFunc(2000,timer,0);

   glutMainLoop();

}

記住-> >alpha乘以新+(1-alpha)乘以舊

mouse跟motion

記得加入兩個

.

把mouse加進去

    glutMouseFunc(mouse);

    glutMotionFunc(motion);

雲端先備份上傳以免當機

總程式:

#include <stdio.h>
	#include <GL/glut.h>
	#include "glm.h"
	GLMmodel * head = NULL;
	GLMmodel * body = NULL;
	GLMmodel * uparmR = NULL;
	GLMmodel * lowarmR = NULL;
	///NULL空指標
	int show[4] = {1,1,1,1};///用show[i] 來決定要不要顯示
	int ID=0;///0:頭 1:身體 2:上手臂 3:下手臂
	void keyboard(unsigned char key,int x,int y)
	{
	if(key='0') ID=0;
	if(key='1') ID=1;
	if(key='2') ID=2;
	if(key='3') ID=3;
	///if(key=='0') show[0] = !show[0];
	///if(key=='1') show[1] = !show[1];
	///if(key=='2') show[2] = !show[2];
	///if(key=='3') show[3] = !show[3];
	glutPostRedisplay();
	}
	FILE * fout = NULL;///一開始檔案沒有開，NULL
	FILE * fin = NULL;///要讀檔案用的指標，一開始也是NULL
	float teapotX=0,teapotY=0;
	float angle=0,angle2=0,angle3=0;
	void display()
	{
	glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
	glPushMatrix();
	glScalef(0.2,0.2,0.2);
	if(body==NULL){
	head =glmReadOBJ("model/head.obj");
	body =glmReadOBJ("model/body.obj");
	uparmR =glmReadOBJ("model/uparmR.obj");
	lowarmR =glmReadOBJ("model/lowarmR.obj");
	}
	if(ID==0) glColor3f(1,0,0);///選定的，設紅色
	else glColor3f(1,1,1);///沒選定的，設白色
	if(show[0]) glmDraw(head,GLM_MATERIAL);
	if(ID==1) glColor3f(1,0,0);
	else glColor3f(1,1,1);
	if(show[1]) glmDraw(body,GLM_MATERIAL);
	glPushMatrix();
	glTranslatef(teapotX,teapotY,0);
	if(ID==2) glColor3f(1,0,0);
	else glColor3f(1,1,1);
	if(show[2]) glmDraw(uparmR,GLM_MATERIAL);
	glPopMatrix();
	if(ID==3) glColor3f(1,0,0);
	else glColor3f(1,1,1);
	if(show[3]) glmDraw(lowarmR,GLM_MATERIAL);
	glPopMatrix();
	glutSwapBuffers();
	}
	int oldX=0,oldY=0;
	void motion(int x,int y)
	{
	teapotX += (x -oldX)/150.0;
	teapotY -= (y -oldY)/150.0;
	oldX=x;
	oldY=y;
	printf("glTranslatef(%f,%f,0);\n",teapotX,teapotY);
	glutPostRedisplay();
	}
	void mouse(int button,int state,int x,int y)
	{
	if(state==GLUT_DOWN){
	oldX = x;///teapotX = (x-150)/150.0;
	oldY = y;///teapotY = (150-y)/150.0;
	angle = x;
	///if(fout==NULL) fout = fopen("file4.txt","w");///沒開檔，就開
	///fprintf(fout,"%f %f\n",teapotX,teapotY);///要再存座標
	}
	display();
	}
	//void keyboard(unsigned char key,int x,int y)
	//{
	// if(fin==NULL){///如果檔案還沒fopen()，就開它
	// fclose(fout);///前面mouse會開fout指標，所以要關掉
	// fin = fopen("file4.txt","r");///沒開檔就開
	// }
	// fscanf(fin,"%f %f",&teapotX,&teapotY);///真的讀檔
	// display();///重畫畫面
	//}
	int main(int argc,char** argv)
	{
	glutInit(&argc,argv);
	glutInitDisplayMode(GLUT_DOUBLE | GLUT_DEPTH);
	glutCreateWindow("week12");
	glutDisplayFunc(display);
	glutMouseFunc(mouse);
	glutMotionFunc(motion);
	glutKeyboardFunc(keyboard);///keyboard要做事了(開檔、讀檔)
	glutMainLoop();
	}