/*
   draw.cc
   This file is part of the Osirion project and is distributed under 
   the terms and conditions of the GNU General Public License version 2 
*/

// projet headers
#include "render/render.h"
#include "render/sphere.h"
#include "render/box.h"
#include "client/client.h"
#include "client/draw.h"

namespace client 
{

render::Sphere sphere(math::Vector3f(0,0,0),1);

void draw_star(game::Star *star, float elapsed)
{
	render::gl::color(star->color);
	sphere.radius = star->radius;
	sphere.draw();
}

math::Vector3f v0(1.0f, -1.0f, -1.0f);
math::Vector3f v1(1.0f,  1.0f, -1.0f);
math::Vector3f v2(1.0f,  1.0f,  1.0f);
math::Vector3f v3(1.0f, -1.0f,  1.0f);

math::Vector3f v4(-1.0f, -1.0f, -1.0f);
math::Vector3f v5(-1.0f,  1.0f, -1.0f);
math::Vector3f v6(-1.0f,  1.0f,  1.0f);
math::Vector3f v7(-1.0f, -1.0f,  1.0f);
float angle = 0;

void draw_ship(game::Ship *ship, float elapsed)
{
	using math::Vector3f;
	using math::Color;
	using namespace render;

	gl::rotate(ship->yaw(), 0.0f, 1.0f, 0.0f );

	Vector3f tl(0.25, 0.125, 0.125);
	Vector3f br(-0.25, -0.125, -0.125);
	
	Box box(tl, br);
	box.draw();

	tl = Vector3f(0, 0.07, 0.25);
	br = Vector3f(-0.5, -0.07, 0.125);
	Box engine1(tl, br);
	engine1.topcolor = Color(0.7, 0.7, 0.7);
	engine1.bottomcolor = engine1.topcolor * 0.5;
	engine1.draw();

	tl = Vector3f(0, 0.07, -0.125);
	br = Vector3f(-0.5, -0.07, -0.25);
	Box engine2(tl, br);
	engine2.topcolor = engine1.topcolor;
	engine2.bottomcolor = engine1.bottomcolor;
	engine2.draw();

	tl = Vector3f(0.4, 0.07, 0.07);
	br = Vector3f(0.25, -0.07, -0.07);
	Box cockpit(tl, br);
	cockpit.topcolor = engine1.topcolor;
	cockpit.bottomcolor = engine1.bottomcolor;
	cockpit.draw();

	if(ship->thrust() > 0 ) {
		gl::color(1.0f,0 ,0 );
		gl::begin(gl::Lines);
		gl::vertex(-0.5f, 0, 0.185);
		gl::vertex(-0.5f-0.25f*ship->thrust(), 0, 0.185);
	
		gl::vertex(-0.5f, 0, -0.185f);
		gl::vertex(-0.5f-0.25f*ship->thrust(), 0, -0.185f);
		gl::end();
	}

	// shield rotation
    	gl::rotate(angle, 0.0f, 1.0f, 0.0f );
    	angle += 180.0f * elapsed;
    	if( angle > 360.0f ) {
            angle -= 360.0f;
    	}
	
	// draw the shield
	gl::color(Color(0.0f, 1.0f ,0.0f , 0.5f));
	
	gl::begin(gl::LineStrip);
	gl::vertex(v0);
	gl::vertex(v1);
	gl::vertex(v2);
	gl::vertex(v3);
	gl::vertex(v0);
	gl::end();
	
	gl::begin(gl::LineStrip);
	gl::vertex(v4);
    	gl::vertex(v5);
        gl::vertex(v6);
        gl::vertex(v7);
	gl::vertex(v4);
	gl::end();
}

void draw_world(float elapsed)
{
	using namespace render;

	// draw the ship
	gl::push();
	gl::translate(game.ship->location);
	gl::scale(0.2f,  0.2f,  0.2f);
	draw_ship(game.ship, elapsed);
	gl::pop();

	// draw the star
	gl::push();
	gl::translate(game.star->location);
	draw_star(game.star, elapsed);
	gl::pop();
}

}