tbftss/src/battle/waypoints.c

/*
Copyright (C) 2015 Parallel Realities

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 "waypoints.h"

static void think(void);
static int teamMatesClose(void);

Entity *spawnWaypoint(void)
{
	Entity *waypoint = spawnEntity();
	
	waypoint->type = ET_WAYPOINT;
	waypoint->health = waypoint->maxHealth = FPS;
	waypoint->texture = getTexture("gfx/entities/waypoint.png");
	waypoint->flags = EF_MISSION_TARGET;
	waypoint->action = think;
	
	return waypoint;
}

static void think(void)
{
	self->thinkTime = 4;
	
	self->angle++;
	if (self->angle >= 360)
	{
		self -= 360;
	}
	
	if (getDistance(player->x, player->y, self->x, self->y) <= 32 && teamMatesClose())
	{
		self->health = 0;
	}
}

static int teamMatesClose(void)
{
	Entity *e;
	
	for (e = battle.entityHead.next ; e != NULL ; e = e->next)
	{
		if (e->type == ET_FIGHTER && e->side == player->side)
		{
			if (getDistance(player->x, player->y, e->x, e->y) > 350)
			{
				addHudMessage(colors.cyan, "Cannot activate waypoint - team mates too far away");
				self->thinkTime = FPS;
				return 0;
			}
		}
	}
	
	return 1;
}