// --------------------------------------------------------------------------
//
// Copyright (c) 2003 Thomas D. Marsh. All rights reserved.
//
// "SSC" is free software; you can redistribute it
// and/or use it and/or modify it under the terms of
// the "GNU General Public License" (GPL).
//
// --------------------------------------------------------------------------

#include "hud.h"
#include "draw.h"
#include "graph.h"
#include "model.h"

HUD::HUD() : ship(0), mShowRadar(false)
{
}

HUD *HUD::hud = 0;
const char* HUD::SPEED_TEXT = "Speed:";
const char* HUD::ANGLE_TEXT = "Angle:";


void HUD::update(Ship *s)
{
	ship = s;
}

void drawForce(int x, int y, int percent)
{
	draw::setColor(1, 1, 1, .2);
	draw::box(x, y, 110, y+10);
	double strength = (double) percent / 100.0;
	draw::setColor(1-strength, strength, 0);
	draw::box(x, y, x+percent, y+10);
}


void HUD::draw()
{
	draw::setMode(draw::DRAW_2D);

	int xres = Screen::mDisplay.x,
	    yres = Screen::mDisplay.y;

	draw::setColor(0, 0, .75, .4);
	draw::box(0, yres-40, xres, yres);

	drawForce(10, yres-31, (int) (ship->shield.getStrength() * 100));
	drawForce(10, yres-19, (int) (ship->mLife * 100));

	if (mShowRadar)
	{
		// draw radar

		int height = 100,
		    width = 100,
		    offx = 10,
		    offy = 10;

		// draw frame
		draw::setColor(1, 1, 1);
		draw::rect(offx-1, offy-1, offx+width+1, offy+height+1, 0, true);


		// draw background
		draw::setColor(0, 0, 0, 0.5f);
		draw::box(offx, offy, offx+width, offy+height);

		// draw points

		draw::startPoints();

		for (ScreenObject *i = Model::getInstance()->getHead(); i != 0; i=i->next)
			if (i->isAlive())
			{
				const ScreenObject& obj = *i;
				int x = (int) obj.mPosition.x,
				    y = (int) obj.mPosition.y;

				draw::setColor(obj.r, obj.g, obj.b);
				draw::point(offx+(int)((x/(double)Screen::maxX())*width),
					    offy+(int)((y/(double)Screen::maxY())*height));
			}
		draw::endPoints();
	}
	draw::setMode(draw::DRAW_3D);
}

void HUD::initialize()
{
}