MiniDevSchool
Crazy Tractor's Infinite Level System

Lesson 3: Simulating an Infinite World

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✨ What You'll Learn:

  • How to simulate infinite scrolling by reusing tiles

  • How to move and reorder rows or columns

🧠 Deeper Dive:

Instead of creating and destroying tiles as the player moves, we simply reposition them and reorder the grid list. For example, to scroll upward:

  • Take the last row of tiles

  • Move it to the top of the screen

  • Insert it at the start of the TileGrid list

This gives the illusion of continuous movement.

✅ Code Example:

public void ScrollUp()
{
    TileRow bottomRow = TileGrid[TileGrid.Count - 1];

    foreach (GameObject tile in bottomRow.Tiles)
    {
        float newY = TileGrid[0].Tiles[0].transform.position.y + tileSpacing;
        tile.transform.position = new Vector3(tile.transform.position.x, newY, 0);
    }

    TileGrid.Insert(0, bottomRow);
    TileGrid.RemoveAt(TileGrid.Count - 1);
    UpdateTileEdges();
}

The same principle applies to ScrollDown, ScrollLeft, and ScrollRight with relevant adjustments.