Как создать массив картинок на JavaScript?

адресовывается

var gameField = document.getElementById("gameField");
var graphics = gameField.getContext("2d");

var m = 1;
var s = 30;
var tm;
var c = 3;
var b = 0;
var img = new Image();
var shipH = 80;
var shipW = 180;
var shipX = (gameField.width - shipW)/2;
var shipY = gameField.height - shipH;
var shipDx = shipW / 20;
var shipDirection = 0;
var rowsCount = 1;
var columsCount = 5;
var enemyMargin = 30;
var offsetX = 100;
var offsetY = 50;
var img2 = new Image();

var enemyW =30;
var enemyH=30;
var enemy=[];



function timer() {
    graphics.clearRect(0, 0, 60, 60);
    graphics.fillStyle = "#f6ff00";
    graphics.font = "20px Century Gothic";

    if (c === 1) {
        s = 59;
        m = m - 1;
        if (s >= 10) {
            graphics.fillText(m + ":" + s, 20, 20);
        }
        if (s < 10) {
            graphics.fillText(m + ":" + "0" + s, 20, 20);
        }
        b = 2;
    }

    if (c === 3) {
            if ((s > 0) && (m >= 0)) {
                s = s - 1;
                if (s >= 10) {
                    graphics.fillText(m + ":" + s, 20, 20);
                }
                if (s < 10) {
                    graphics.fillText(m + ":" + "0" + s, 20, 20);
                }
            }

            if ((s === 0) && (m > 0)) {
                c = 1;
                if (s >= 10) {
                    graphics.fillText(m + ":" + s, 20, 20);
                }
                if (s < 10) {
                    graphics.fillText(m + ":" + "0" + s, 20, 20);
                }
            }

            if ((s === 0) && (m === 0)) {
                clearTimeout(tm);
                clearTimeout(tm2);
            }
    }
    if (b === 2) {
        c = 3;
    }
}

tm   =	setInterval(timer, 1000);

function drawImg() {
        graphics.save();
        graphics.rect(shipX, shipY, shipW, shipH);
        graphics.clip();
        graphics.drawImage(img, shipX, shipY, shipW, shipH);
        graphics.restore();
        img.src = 'ship.jpg';
}

function keyDownHandler(key) {
    if (key.keyCode===37) {shipDirection = -1;}
    if (key.keyCode===39) {shipDirection = 1;}
}

function keyUpHandler(key) {
    if (key.keyCode===37) {shipDirection = 0;}
    if (key.keyCode===39) {shipDirection = 0;}
}

document.addEventListener("keydown", keyDownHandler, false);
document.addEventListener("keyup", keyUpHandler, false);

function moveShip() {
    if (shipDirection === -1) {
        shipX -= shipDx;
        if(shipX <= 0) {
            shipX = 0;
        }
    }
    if (shipDirection === 1) {
        shipX += shipDx;
        if (shipX >= gameField.width - shipW) {
            shipX = gameField.width - shipW;
        }
    }
}

function createEnemy() {
    var k=0;
    for (var i=0; i < rowsCount; i++)
    {
        for(var j=0;j < columsCount; j++)
        {
            enemy[k]=
                {
                    x:j*(enemyW + enemyMargin)+offsetX,
                    y:i*(enemy + enemyMargin)+offsetY
                };
            k++;
        }
    }
}


function drawEnemy() {
    for (var i = 0; i < enemy.length; i++) {
        graphics.save();
        graphics.rect(enemy[i].x, enemy[i].y, enemyW, enemyH);
        graphics.clip();
        graphics.drawImage(img2, enemy[i].x, enemy[i].y, enemyW, enemyH);
        graphics.restore();
        img2.src = 'enemy.jpg';
    }
}

createEnemy();

function updateGameField() {
    graphics.clearRect(100,0,gameField.width-100, gameField.height);
    graphics.clearRect(0, 100, 100, gameField.height-100);
    moveShip();
    drawImg();
    drawEnemy();
}
tm2 = setInterval (updateGameField, 10);

Делаю игру на java