MHeasell

// bin stuff -------------------------------------------------------------------

const BIN_WIDTH = 13.333333333333;
const HALF_BIN_WIDTH = (BIN_WIDTH / 2);

const BIN_HEIGHT = 14;
const HALF_BIN_HEIGHT = (BIN_HEIGHT / 2);

const NUM_BINS_X = 6;
const NUM_BINS_Y = 5;

MHeasell

function vecAdd(a, b) {
    return {
        x: a.x + b.x,
        y: a.y + b.y
    };
}
function vecSub(a, b) {
    return {
        x: a.x - b.x,
        y: a.y - b.y