/* sample-cylinder.c */
#include <GL/glut.h>
#include <stdlib.h>
#include "myShape.h"

float param = 0.0;
int flag = 0.0;

float diffuse[ ] = {1.0, 0.0, 0.0, 1.0};
float specular[ ] = {1.0, 1.0, 1.0, 1.0};
float ambient[ ] = {0.1, 0.1, 0.1, 1.0};
float shininess = 128.0;

void display(void)
{
  glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT); /* zバッファを初期化 */

  glMaterialfv(GL_FRONT, GL_DIFFUSE, diffuse);
  glMaterialfv(GL_FRONT, GL_SPECULAR, specular);
  glMaterialfv(GL_FRONT, GL_AMBIENT, ambient);
  glMaterialf(GL_FRONT, GL_SHININESS, shininess);
  glEnable(GL_LIGHTING);

  glPushMatrix();
  glTranslatef(0.0, 1.0, 0.0);
  mySolidCylinder(1.0, 2.0, 12);

  glPopMatrix();

  glDisable(GL_LIGHTING);
  glutSwapBuffers();
}

void idle(void)
{
  if(flag == 1){
    param = fmod(param+1.0, 360.0);
    if(param == 0.0) flag = 0;
  }
  glutPostRedisplay();
}

void mouse(int button, int state, int x, int y)
{
  if(state == GLUT_DOWN){
    switch(button){
    case GLUT_LEFT_BUTTON:
      flag = 1;
      break;
    case GLUT_RIGHT_BUTTON:
      break;
    }
  }
}

void keyboard(unsigned char key, int x, int y)
{
  switch (key) {
  case 'q':
    exit(0);
  default:
    break;
  }
}

void init(char *winname)
{
  glutInitWindowPosition(0, 0);
  glutInitWindowSize(500, 500);
  glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGBA | GLUT_DEPTH); /* zバッファ利用の宣言 */
  glutCreateWindow(winname);

  glClearColor(0.0, 0.0, 0.0, 1.0);

  glMatrixMode(GL_PROJECTION);
  glLoadIdentity();
  gluPerspective(30.0, 1.0, 1.0, 100.0);  /* 透視投影の設定 */

  glMatrixMode(GL_MODELVIEW);
  gluLookAt(3.0, 4.0, 5.0, 0.0, 0.0, 0.0, 0.0, 1.0, 0.0); /* 視点の設定 */

  glShadeModel(GL_FLAT);
  glEnable(GL_LIGHT0);

  glEnable(GL_DEPTH_TEST);   /* 隠面処理の開始を宣言 */
}

int main(int argc, char *argv[])
{
  glutInit(&argc, argv);
  init(argv[0]);
  glutDisplayFunc(display);
  glutKeyboardFunc(keyboard);
  glutMouseFunc(mouse);
  glutIdleFunc(idle);
  glutMainLoop();
  return 0;
}