#include <stdlib.h>
#include "SceneGraph.h"
#include "xml_file/cube.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) {

	// 実は微妙に意味が無い
	srandom(random());

	SceneGraphPtr p = node->clone();
	p->position_init();
	node->addBrother(p);
	p->set_move_collision(cube_move2, cube_collision);
	p->stack_xyz[0] = (float)(random() % 5);
	p->stack_xyz[1] = (float)(random() % 5);
	//p->xyz[0] = screen_w/2;
	//p->xyz[1] = screen_h/2;
	p->xyz[2] = node->xyz[2]+1000.0f;

	node->stack_xyz[1] = -node->stack_xyz[1];
    }
}

void
node_init(void)
{
    SceneGraph::createFromXMLfile("xml_file/cube.xml");
    Cube->set_move_collision(cube_move, cube_collision);
    Cube->stack_xyz[0] = 2.0f;
    Cube->stack_xyz[1] = 2.0f;
}