/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.

 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.

 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
 *
 */

/*
 * This code is based on original Soltys source code
 * Copyright (c) 1994-1995 Janus B. Wisniewski and L.K. Avalon
 */

#include "cge/game.h"
#include "cge/mouse.h"
#include <stdlib.h>
#include <dos.h>


namespace CGE {

uint8 *Glass(DAC *pal, uint8 r, uint8 g, uint8 b) {
	uint8 *x = new uint8[256];
	if (x) {
		uint16 i;
		for (i = 0; i < 256; i ++) {
			x[i] = Closest(pal, MkDAC(((uint16)(pal[i].R) * r) / 255,
			                          ((uint16)(pal[i].G) * g) / 255,
			                          ((uint16)(pal[i].B) * b) / 255));
		}
	}
	return x;
}


uint8 *Mark(DAC *pal) {
#define f(c) (c ^ 63)
	uint8 *x = new uint8[256];
	if (x) {
		uint16 i;
		for (i = 0; i < 256; i ++) {
			x[i] = Closest(pal, MkDAC(f(pal[i].R),
			                          f(pal[i].G),
			                          f(pal[i].B)));
		}
	}
	return x;
#undef f
}


int FLY::L = 20,
    FLY::T = 40,
    FLY::R = 110,
    FLY::B = 100;


FLY::FLY(BITMAP **shpl)
	: SPRITE(shpl), Tx(0), Ty(0) {
	Step(new_random(2));
	Goto(L + new_random(R - L - W), T + new_random(B - T - H));
}


void FLY::Tick(void) {
	Step();
	if (! Flags.Kept) {
		if (new_random(10) < 1) {
			Tx = new_random(3) - 1;
			Ty = new_random(3) - 1;
		}
		if (X + Tx < L || X + Tx + W > R)
			Tx = -Tx;
		if (Y + Ty < T || Y + Ty + H > B)
			Ty = -Ty;
		Goto(X + Tx, Y + Ty);
	}
}

} // End of namespace CGE