Move a Unity object from its current position to the position of another game object.

orc_ctrl.cs

// stay within a certain range of target
void mvt_stayWithin() {
	if (Vector3.Distance(transform.position, myStats.target.transform.position) <= myStats.targetRange)
		// we are as close to the target as we want to be
		return;

	// get X and Y distance to target
	float diffX = transform.position.x - myStats.target.transform.position.x;
	float diffY = transform.position.y - myStats.target.transform.position.y;

	// get the x and y direction to move in
	if (diffX < 0) {
		dir_x = 1.0f;
	} else if (diffX > 0) {
		dir_x = -1.0f;
	} else {
		dir_x = 0;
	}

	if (diffY < 0) {
		dir_y = 1.0f;
	} else if (diffY > 0) {
		dir_y = -1.0f;
	} else {
		dir_y = 0;
	}

	// normalize movement to 1 for whichever is the larger gap, x or y
	// this makes you move straight to your target
	diffX = Mathf.Abs(diffX);
	diffY = Mathf.Abs(diffY);
	if (diffX > diffY) {
		dir_y = dir_y * (diffY / diffX);
	} else {
		dir_x = dir_x * (diffX / diffY);
	}

	// move this object
	transform.Translate(Time.deltaTime * dir_x * myStats.speed, Time.deltaTime * dir_y * myStats.speed, 0);
}