app/entities/creatures/strategies/HoldStrategy.js
import Strategy from './Strategy.js';
import Creature from '../Creature.js';
import Dungeon from '../../../dungeons/Dungeon.js';
import Moves from '../moves/Moves.js';
/**
* @class HoldStrategy
* @description Causes monster to wait for player to approach
*/
export default class HoldStrategy extends Strategy {
getNextMove(dungeon, creature) {
if(!(dungeon instanceof Dungeon)) {
throw new Error('First parameter must be a Dungeon');
} else if(!(creature instanceof Creature)) {
throw new Error('Second parameter must be a Creature');
}
var enemies = creature.getVisibleEnemies(dungeon);
if(enemies.length > 0) {
return new Moves.WaitMove(dungeon.getTile(creature));
} else {
return null;
}
}
}