#include <glut.h>
#include <cmath>
#include <math.h>

float rotace = 0;
float posunPL = 0;
float posunND = 0;

void onResize(int w, int h)
{
	glViewport(0, 0, w, h);
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glOrtho(0, w, 0, h, -800, 800);
}

void Zobrazeni(void)
{
	glClearColor(0.0, 0.0, 0.0, 0.0);
	glClear(GL_COLOR_BUFFER_BIT);

	glColor3f(0.0f, 1.0f, 0.0f);
	glLineWidth(3.0f);
	glEnable(GL_LINE_SMOOTH);
	glMatrixMode(GL_MODELVIEW);

	glLoadIdentity();
	glTranslatef(800+posunPL, 500.0f+posunND, 500);
	glRotatef(rotace, 1.0f, 0, 0.0f);


	glColor3f(1.0, 1.0, 1.0);
	//glBegin(GL_POLYGON);
	/*glVertex3i(150, 150, 0);
	glVertex3i(450, 150, 0);
	glVertex3i(450, 450, 0);
	//glColor3f(1.0, 0.0, 1.0);
	glVertex3i(250, 450, 0);
	//glColor3f(0.0, 0.0, 1.0);
	glVertex3i(150, 250, 0);
	glVertex3i(150, 150, 0);
	glEnd();*/

	glutSolidTeapot(50);


	glFlush();

}

void onKeyboard(unsigned char key, int x, int y)
{
	switch (key)
	{
	case 27:
		exit(0);
		break;
	case 'r':
		rotace += 15;
		glutPostRedisplay();
		break;
	case 'd':
		posunPL += 1;
		glutPostRedisplay();
		break;
	case 'a':
		posunPL -= 1;
		glutPostRedisplay();
		break;
	case 'w':
		posunND += 1;
		glutPostRedisplay();
		break;
	case 's':
		posunND -= 1;
		glutPostRedisplay();
		break;

	}
}

int main(int argc, char **argv)
{
	glutInit(&argc, argv);
	glutCreateWindow("OpenGL okno");
	glutReshapeWindow(1920, 1080);
	glutPositionWindow(0, 0);
	glutDisplayFunc(Zobrazeni);
	glutReshapeFunc(onResize);
	glutKeyboardFunc(onKeyboard);
	glutMainLoop();
	return 0;
}