#include <stdlib.h>
#include "SceneGraph.h"
#include "xml_file/universe.h"

static void
cube_collision(SceneGraphPtr node, int screen_w, int screen_h,
	       SceneGraphPtr tree)
{
}

static void
cube_move2(SceneGraphPtr node, int screen_w, int screen_h)
{
    node->angle[1] += 1.0f;
    if (node->angle[1] > 360.0f) {
	node->angle[1] = 0.0f;
    }

    node->xyz[0] += node->stack_xyz[0];
    if ((int)node->xyz[0] > screen_w || (int)node->xyz[0] < 0) {
	node->stack_xyz[0] = -node->stack_xyz[0];
    }

    node->xyz[1] += node->stack_xyz[1];
    if ((int)node->xyz[1] > screen_h || (int)node->xyz[1] < 0) {
	node->stack_xyz[1] = -node->stack_xyz[1];
    }
}

static void
cube_move(SceneGraphPtr node, int screen_w, int screen_h)
{
    node->angle[1] += 1.0f;
    if (node->angle[1] > 360.0f) {
	node->angle[1] = 0.0f;
    }

    node->xyz[0] += node->stack_xyz[0];
    if ((int)node->xyz[0] > screen_w || (int)node->xyz[0] < 0) {
	node->stack_xyz[0] = -node->stack_xyz[0];
    }

    node->xyz[1] += node->stack_xyz[1];
    if ((int)node->xyz[1] > screen_h || (int)node->xyz[1] < 0) {
	node->stack_xyz[1] = -node->stack_xyz[1];
    }
}

static void
moon_move(SceneGraphPtr node, int screen_w, int screen_h)
{
    node->angle[1] += 1.0f;
    if (node->angle[0] > 360.0f) {
      node->angle[0] = 0.0f;
    }
}

void
universe_init(void)
{
    SceneGraph::createFromXMLfile("xml_file/universe.xml");
    Earth->set_move_collision(cube_move, cube_collision);
    Earth->stack_xyz[0] = 3.0f;
    Earth->stack_xyz[1] = 3.0f;
    Moon->set_move_collision(moon_move, cube_collision);
}