swordio/lib/cells/FlimsyForwardDeflectorCell.js

A medieval warrior-based programming language

var util = require('../util');

function FlimsyForwardDeflectorCell(map) {
    this.map = map;
}
FlimsyForwardDeflectorCell.type = ")";

FlimsyForwardDeflectorCell.prototype.encounter = function(enemy, vector) {
    var targetX = this.x + vector.x;
    var targetY = this.y + vector.y;

    var stringValue = this.map.get(targetX, targetY).type;
    var numberValue = stringValue.charCodeAt(0) - 32;

    // rotate anticlockwise
    enemy.direction--;
    if (enemy.direction < 0) enemy.direction = 3;

    var newVector = util.directionVectors[enemy.direction];
    enemy.x = targetX;
    enemy.y = targetY;

    this.map.set(targetX, targetY, String.fromCharCode(numberValue + 31));

    if (numberValue <= 1) this.map.set(this.x, this.y, " ");
};

module.exports = FlimsyForwardDeflectorCell;