canvasId="gameCanvas";

//System Events
function eventStart()
{
    backgroundColor = "black";
    setGameSpeed(30);
    spriteAdd("player", "assets/img/player.png");
    objectAdd("player", "player", 17, 17, 0);
    objectAdd("block1", "none", 0, 0, 0);
    objectAdd("block2", "none", 0, 0, 0);
    keyAdd("up", 38);
    keyAdd("down", 40);
    keyAdd("left", 37);
    keyAdd("right", 39);

    instanceAdd(320, 240, "player");
    instanceAdd(96, 96, "block1");
    instanceAdd(128, 96, "block1");
    instanceAdd(96, 128, "block1");
    instanceAdd(512, 96, "block2");
    instanceAdd(480, 96, "block2");
    instanceAdd(512, 128, "block2");
}
function eventStep()
{

}
function eventDraw()
{

}

//Object Events
function objectEventCreate(instance)
{
    var objectType=instances[instance].name;
    var i=instance;
    var inst=instances[i];



    if (objectType == "player")
    {
        hitboxSet(i, 31, 31, 16, 16, "player");
    }
    if (objectType == "block1" || objectType == "block2")
    {
        hitboxSet(i, 32, 32, 16, 16, "block");
    }

}
function objectEventStep(instance)
{
    var objectType=instances[instance].name;
    var i=instance;
    var inst=instances[i];

    if (objectType == "player")
    {
        var xx = keyCheck("right")-keyCheck("left");
        var yy = keyCheck("down")-keyCheck("up");
        var speed = 12;
        var dir = pointDirection(0, 0, xx, yy, -1);

        if (dir != -1)
        {
            xx = lengthDirX(speed, dir);
            yy = lengthDirY(speed, dir);
        }

        if (xx != 0)
        {
            inst.xprevious = inst.x;
            inst.x += xx;
            var col = hitboxCollide(i, "block");
            if (col != -1)
            {
                if (xx < 0)
                {
                    inst.x = instances[col].x + 49;
                }
                else
                {
                    inst.x = instances[col].x - 16;
                }
            }
        }

        if (yy != 0)
        {
            inst.yprevious = inst.y;
            inst.y += yy;
            var col = hitboxCollide(i, "block");
            if (col != -1)
            {
                if (yy < 0)
                {
                    inst.y = instances[col].y + 49;
                }
                else
                {
                    inst.y = instances[col].y - 16;
                }
            }
        }

        if (inst.x < inst.xoffset)
        {
            inst.x = inst.xoffset;
        }
        if (inst.x > c.width - inst.xoffset)
        {
            inst.x = c.width - inst.xoffset;
        }
        if (inst.y < inst.yoffset)
        {
            inst.y = inst.yoffset;
        }
        if (inst.y > c.height - inst.yoffset)
        {
            inst.y = c.height - inst.yoffset;
        }
    }

}
function objectEventDraw(instance)
{
    var objectType=instances[instance].name;
    var i=instance;
    var inst=instances[i];

    if (objectType == "block1")
    {
        cxt.fillStyle = "white";
        fillRect(inst.x, inst.y, inst.x + 32, inst.y + 32);
    }

    if (objectType == "block2")
    {
        cxt.strokeStyle = "white";
        strokeRect(inst.x, inst.y, inst.x + 32, inst.y + 32);
    }
}

//Particles Events
function particleEventDraw(particle)
{
    var particleType=particles[particle].type;
    var i=particle;
    var part=particles[i];

}

//Custom Functions