/*
 * Copyright (c) 2009, Mason Green (zzzzrrr)
 * http://www.dsource.org/projects/openmelee
 * 
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without modification,
 * are permitted provided that the following conditions are met:
 *
 * * Redistributions of source code must retain the above copyright notice,
 *   this list of conditions and the following disclaimer.
 * * Redistributions in binary form must reproduce the above copyright notice,
 *   this list of conditions and the following disclaimer in the documentation
 *   and/or other materials provided with the distribution.
 * * Neither the name of the polygonal nor the names of its contributors may be
 *   used to endorse or promote products derived from this software without specific
 *   prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
module openmelee.ai;

import tango.io.Stdout : Stdout;
import tango.math.Math : atan2;

import blaze.common.bzMath: bzVec2;
import openmelee.steer : Steer;
import openmelee.ship : Ship;

class AI {


	Steer steer;
	Ship ship;
	float maxPredictionTime = 0.5f;
	
	this(Ship ship) {
		this.ship = ship;
		steer = new Steer(ship);
	}
	
	void move(Ship enemy) {
	    
	    steer.update();
	    bzVec2 st;
	    st = steer.steerForPursuit(enemy.state, maxPredictionTime);
	    //ship.thrust();
	    ship.state.target = st;
        float angle = atan2(st.x, st.y);
        
        if(angle < 0) {
            ship.turnLeft();
        } else {
            ship.turnRight();
        }
    }

}