var ani_ocean = OS.A.Add("Ocean", 256, 256, { columns: 10, speed: 1/60 });

function oceanTilePrefab() {
  if (Oversimplified.DEBUG.showMessages) console.log("Ran oceanTilePrefab()");
  prefabsLoaded++;
}

var pr_ocean = OS.P.Add("Ocean Particle", {
  imageSrc: "images/ocean_sheet.png",
  animations: [ani_ocean],
  depth: -100,  // Draw below everything.

  positionCheckStep: 30,
  positionCheckProgress: 30,
  doCheckPosition: false,

  moveTimer: 0,
});

pr_ocean.BeforeDo = function () {
  this.positionCheckProgress++;
  if (this.positionCheckProgress >= this.positionCheckStep) {
    this.positionCheckProgress = 0;
    this.doCheckPosition = true;
  }
}
pr_ocean.Do = function () {
  // Move around randomly.
  this.moveTimer++;
  if (this.moveTimer >= 120) {
    this.x += 1 * pixel(Math.round(Math.randomRange(-1, 1)));
    this.y += 1 * pixel(Math.round(Math.randomRange(-1, 1)));
    this.moveTimer = 0;
  }
}

pr_ocean.CheckPosition = function (checkX, checkY, direction) {
  if (this.doCheckPosition) {
    // If it's completely off the screen, then update position.
    if ((Math.abs(this.x - checkX) > (OS.camera.width + this.xBound)) ||
      (Math.abs(this.y - checkY) > (OS.camera.height + this.yBound)))
    {
      switch (direction) {
        case 0: {
          this.x = checkX + (OS.camera.width + this.xBound) + randomSmidge();
          this.y = checkY + randomSmidge();
					break;
				}
        case 45: {
          this.x = checkX + (OS.camera.width + this.xBound) + randomSmidge();
          this.y = checkY - (OS.camera.height + this.yBound) + randomSmidge();
					break;
				}
        case 90: {
          this.x = checkX + randomSmidge();
          this.y = checkY - (OS.camera.height + this.yBound) + randomSmidge();
					break;
				}
        case 135: {
          this.x = checkX - (OS.camera.width + this.xBound) + randomSmidge();
          this.y = checkY - (OS.camera.height + this.yBound) + randomSmidge();
					break;
				}
        case 180: {
          this.x = checkX - (OS.camera.width + this.xBound) + randomSmidge();
          this.y = checkY + randomSmidge();
					break;
				}
        case 225: {
          this.x = checkX - (OS.camera.width + this.xBound) + randomSmidge();
          this.y = checkY + (OS.camera.height + this.yBound) + randomSmidge();
					break;
				}
        case 270: {
          this.x = checkX + randomSmidge();
          this.y = checkY + (OS.camera.height + this.yBound) + randomSmidge();
					break;
				}
        case 315: {
          this.x = checkX + (OS.camera.width + this.xBound) + randomSmidge();
          this.y = checkY + (OS.camera.height + this.yBound) + randomSmidge();
					break;
				}
        default: {
          console.log("No valid direction");
					break;
				}
      }
    }

    this.doCheckPosition = false;
  }
}