二维正交假无限网格上的瓷砖选择

Question

我找不到正确的偏移量来获取在模拟假网格上选择的图块。

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我在中心偏移的纹理（monogame renderTarget）上绘制网格：

GRID_CENTER_X = (SCREEN_WIDTH / 2) - ((GRID_WIDTH * TILE_WIDTH) / 2) + (TILE_WIDTH / 2)

GRID_CENTER_Y = (SCREEN_HEIGHT / 2) - ((GRID_HEIGHT * TILE_HEIGHT) / 2)

然后我使用此功能移动相机：

public void Move(float SPEED_X, float SPEED_Y)
{
   CAMERA_X += (SPEED_X * 10) * DELTA_TIME;
   CAMERA_Y += (SPEED_Y * 10) * DELTA_TIME;
   
   DIST_X = CAMERA_X / SPEED_X;
   DIST_Y = CAMERA_Y  / SPEED_Y;
   //Tried to use this for the offsets.. doesnt work
   //also tried to divide camera's x & y position by tile size , not working..
}

然后我更新我在上面绘制瓷砖的网格图像：

GRID_X  = CAMERA_X + GRID_CENTER_X`;
GRID_Y  = CAMERA_Y + GRID_CENTER_Y;

if(CAMERA_X >= TILE_WIDTH * 10 || CAMERA_X <= - TILE_WIDTH * 10) CAMERA_X = 0;

if(CAMERA_Y >= TILE_HEIGHT * 10 || CAMERA_Y <= - TILE_HEIGHT * 10) CAMERA_Y = 0;

它给人一种网格无限的错觉，但我只是把它移回去 一旦到达一定距离，就会到达其前面的位置。

我用这个公式画的瓷砖(Cell2World)

TILE_X = TILE_I * TILE_WIDTH;
TILE_Y = TILE_J * TILE_HEIGHT;

当相机不移动时，瓷砖部分效果很好使用以下公式（World2Cell）

TILE_I = WORLD_X / TILE_WIDTH;
TILE_J = WORLD_Y / TILE_HEIGHT;

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以下是我如何将图像放置到光标位置以进行图块选择：

CURSOR_I = CURSOR_X / TILE_WIDTH;
CURSOR_J = CURSOR_Y / TILE_HEIGHT;

CURSOR_X = CURSOR_I * TILE_WIDTH;
CURSOR_Y = CURSOR_J * TILE_HEIGHT;

这基本上是

CURSOR_X = Cell2World(World2Cell(mousePosition)).X;
CURSOR_Y = Cell2World(World2Cell(mousePosition)).Y;

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我应该向 World2Cell 添加什么以包括网格/相机偏移等，将光标放在正确的位置以执行图块选择？