GKiW_LAB02

#include <windows.h> //Wymagane dla implementacji OpenGL w Visual Studio.
#include "gl\gl.h"
#include "gl\glut.h"
#include "stdio.h" //Przydatne do wypisywania komunikatów na konsoli
#include "glm\glm.hpp"
#include "glm\gtc\matrix_transform.hpp"
#include "glm\gtc\type_ptr.hpp"

using namespace glm;

float speed = 100;
int lastTime = 0;
float angle;

void displayFrame(void) {
        glClearColor(0.122, 0.412, 0.414, 0);
        glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);

        mat4 M = mat4(1.0f);
        mat4 V = lookAt(
            vec3(0.0f, 0.0f, -5.0f),
            vec3(0.0f, 0.0f, 0.0f),
            vec3(0.0f, 1.0f, 0.0f) );
        mat4 P = perspective(50.0f, 1.0f, 1.0f, 50.0f);

        mat4 R = rotate(M, angle -  sin(angle), vec3(1.0f, 0.0f, 1.0f));
        mat4 T = translate(M, vec3(1.0f, 1.0f, 0.0f));
        M = R*T;
        glMatrixMode(GL_PROJECTION);
        glLoadMatrixf(value_ptr(P));
        glMatrixMode(GL_MODELVIEW);
        glLoadMatrixf(value_ptr(V*M));

        glColor3b(200, 50, 100);
        glutSolidTorus(0.7, 1.5, 50, 30);
        glutSwapBuffers();
}

void nextFrame(void) {


    int actTime = glutGet(GLUT_ELAPSED_TIME);
    int interval = actTime - lastTime;
    lastTime = actTime;
    angle += speed * interval / 1000.0;
    if (angle > 360) angle -= 360;
    glutPostRedisplay();
}

int main(int argc, char* argv[]) {
        glutInit(&argc, argv);
        glutInitDisplayMode(GLUT_DOUBLE | GLUT_RGB | GLUT_DEPTH);
        glutInitWindowSize(800,800);
        glutInitWindowPosition(0,0);
        glutCreateWindow("Program OpenGL");
        glutDisplayFunc(displayFrame);
        glutIdleFunc(nextFrame);
        glEnable(GL_LIGHTING);
        glEnable(GL_LIGHT0);
        glEnable(GL_DEPTH_TEST);
        glEnable(GL_COLOR_MATERIAL);

        //Tutaj kod inicjujący

        glutMainLoop();
        return 0;
}