cable.cc

PIXIL is a small footprint operating environment, complete with PDA PIM applications, a browser and

 /*
 * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 */

#include "objects.h"

void
Cable::setup()
{
    c1 = game.RAND(0, net.units - 1);
    do {
	c2 = game.RAND(0, net.units - 1);
    } while (c2 == c1);
    active = index = 0;
    delay = spark.delay(game.level);
    x1 = net.computers[c1].x + net.width / 3;
    x2 = net.computers[c2].x + net.width / 3;
    y1 = net.computers[c1].y + net.height / 2;
    y2 = net.computers[c2].y + net.height / 2;
}

void
Cable::update()
{
    if (active) {
	if ((net.computers[c1].os == OS.WINGDOWS) ==
	    (net.computers[c2].os == OS.WINGDOWS))
	    active = 0;
	else if (net.computers[c1].os == OS.WINGDOWS ||
		 net.computers[c2].os == OS.WINGDOWS) {
	    int dir, xdist, ydist, c;
	    float sx, sy;
	    dir = (net.computers[c2].os == OS.WINGDOWS);
	    if (dir) {
		xdist = x1 - x;
		ydist = y1 - y;
	    } else {
		xdist = x2 - x;
		ydist = y2 - y;
	    }
	    sx = xdist >= 0 ? 1.0 : -1.0;
	    sy = ydist >= 0 ? 1.0 : -1.0;
	    xdist = abs(xdist);
	    ydist = abs(ydist);
	    if (xdist == 0 && ydist == 0) {
		if (dir == 0)
		    c = c2;
		else
		    c = c1;
		if (!net.computers[c].busy) {
		    if (net.computers[c].os == OS.OFF)
			net.off--;
		    else
			net.base--;
		    net.win++;
		    net.computers[c].os = OS.WINGDOWS;
		}
		active = 0;
	    } else if (game.MAX(xdist, ydist) < spark.speed) {
		if (dir) {
		    x = x1;
		    y = y1;
		} else {
		    x = x2;
		    y = y2;
		}
	    } else {
		fx += (xdist * spark.speed * sx) / (xdist + ydist);
		fy += (ydist * spark.speed * sy) / (xdist + ydist);
		x = (int) fx;
		y = (int) fy;
	    }
	    index = 1 - index;
	}
    } else {
	if ((net.computers[c1].os == OS.WINGDOWS) ==
	    (net.computers[c2].os == OS.WINGDOWS))
	    delay = spark.delay(game.level);
	else if (net.computers[c1].os == OS.WINGDOWS ||
		 net.computers[c2].os == OS.WINGDOWS) {
	    if (delay > 0)
		delay--;
	    else {
		active = 1;
		if (net.computers[c1].os == OS.WINGDOWS) {
		    fx = x = x1;
		    fy = y = y1;
		} else {
		    fx = x = x2;
		    fy = y = y2;
		}
	    }
	}
    }
}

int
Cable::onspark(int locx, int locy)
{
    if (!active)
	return 0;
    return (abs(locx - x) < spark.width && abs(locy - y) < spark.height);
}

void
Cable::draw()
{
    int rx = x - spark.width / 2;
    int ry = y - spark.height / 2;
    ui.draw_line(x1, y1, x2, y2);
    if (active)
	ui.draw(&(spark.pictures[index]), rx, ry);
}