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#include <GL/glut.h>
#include <time.h>
#include <memory.h>
#include "uhr.h"
using namespace uhr;
void init();
void reshape(int width, int height);
void display();
void idle();
int main(int argc, char **argv)
{
glutInit(&argc, argv);
glutInitDisplayMode(GLUT_RGBA|GLUT_DOUBLE|GLUT_DEPTH|GLUT_MULTISAMPLE);
glutCreateWindow("PocketWatch");
glutDisplayFunc(display);
glutReshapeFunc(reshape);
glutIdleFunc(idle);
init();
glutMainLoop();
return 0;
};
void init()
{
glEnable(GL_DEPTH_TEST);
glEnable(GL_BLEND);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
glLightModeli(GL_LIGHT_MODEL_TWO_SIDE, GL_TRUE);
glLightModeli(GL_LIGHT_MODEL_LOCAL_VIEWER, GL_TRUE);
glEnable(GL_LIGHTING);
glEnable(GL_LIGHT0);
glEnable(GL_MULTISAMPLE);
}
float light_position[]={-0.5,0.5,1,0};
void reshape(int width, int height)
{
glViewport(0,0,width,height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
gluPerspective(45, (float)width/(float)height, 1, 10);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
void draw_object(C3DObject const *obj);
void draw_object_rot_z(C3DObject const *obj, float rot);
void display()
{
glClear(GL_COLOR_BUFFER_BIT|GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glTranslatef(0,0,-4);
glLightfv(GL_LIGHT0, GL_POSITION, light_position);
glPolygonMode(GL_FRONT_AND_BACK, GL_FILL);
glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
draw_object(&object_gehaeuse);
draw_object(&object_boden);
draw_object(&object_ziffernblatt);
draw_object(&object_sekziffernblatt);
time_t now=time(NULL);
tm tm_time=*localtime(&now);
draw_object_rot_z(&object_stundenzeiger, (tm_time.tm_min/60.0f+tm_time.tm_hour)*720.0f/24.0f);
draw_object_rot_z(&object_minutenzeiger, (tm_time.tm_min+tm_time.tm_sec/60.0f)*360.0f/60.0f);
draw_object_rot_z(&object_sekundenzeiger, tm_time.tm_sec*360.0f/60.0f);
glBlendFunc(GL_SRC_ALPHA, GL_ONE);
draw_object(&object_deckel);
glutSwapBuffers();
}
void idle()
{
glutPostRedisplay();
}
void draw_object(C3DObject const *obj)
{
glPushMatrix();
glMultMatrixf(obj->matrix);
float tmp[4];
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, obj->material);
memcpy(tmp, obj->material+4, sizeof(float)*3);
tmp[3]=1.0f;
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, tmp);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, obj->material[7]);
for(int i=0; i<4; i++)tmp[i]=obj->material[i]*obj->material[8];
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, tmp);
glBegin(GL_TRIANGLES);
for(int f=0; f<*obj->nFaces; f++)
{
for(int v=0; v<3; v++)
{
int i=obj->faces[f][v];
glNormal3fv(obj->verticies[i][1]);
glVertex3fv(obj->verticies[i][0]);
}
}
glEnd();
glPopMatrix();
}
void draw_object_rot_z(C3DObject const *obj, float rot)
{
glPushMatrix();
glMultMatrixf(obj->matrix);
glRotatef(rot,0,0,-1);
float tmp[4];
glMaterialfv(GL_FRONT_AND_BACK, GL_AMBIENT_AND_DIFFUSE, obj->material);
memcpy(tmp, obj->material+4, sizeof(float)*3);
tmp[3]=1.0f;
glMaterialfv(GL_FRONT_AND_BACK, GL_SPECULAR, tmp);
glMaterialf(GL_FRONT_AND_BACK, GL_SHININESS, obj->material[7]);
for(int i=0; i<4; i++)tmp[i]=obj->material[i]*obj->material[8];
glMaterialfv(GL_FRONT_AND_BACK, GL_EMISSION, tmp);
glBegin(GL_TRIANGLES);
for(int f=0; f<*obj->nFaces; f++)
{
for(int v=0; v<3; v++)
{
int i=obj->faces[f][v];
glNormal3fv(obj->verticies[i][1]);
glVertex3fv(obj->verticies[i][0]);
}
}
glEnd();
glPopMatrix();
}
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