battlearray_client/Assets/Scripts/UI/MiniMap/CameraRect.cs

using UnityEngine;
using System.Collections;

public class CameraRect : MonoBehaviour {

	private InputController inputController;
	private RectTransform rectTrans;

	public void init(InputController inputController)
	{
		this.inputController = inputController;
		rectTrans = this.GetComponent<RectTransform>();
	}

	// Update is called once per frame
	void FixedUpdate () 
	{
		Vector3 position = inputController.cameraPosition;
		int col = (int)NumberUtil.forceBetween(position.x/Map.TILE_WIDTH, 0, 128f);
		int row = (int)NumberUtil.forceBetween((position.z)/Map.TILE_LENGTH, 0, 128f);

		Vector3 pos = rectTrans.localPosition;
		pos.x = MiniMap.offsetX+col;
		pos.y = MiniMap.offsetY+row;
		rectTrans.localPosition = pos;
	}

}