Once we have a map array, we iterate through each row and column, including an image for each terrain type.

在拥有地图数组后，我们将遍历每行和每列，包括每个地形类型的图像。

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To start, create a few different terrain types and throw together some really rudimentary map tiles to represent each terrain type.

首先，创建一些不同的地形类型并且集合一些极为初步的地图图像块以表示每个地形类型。

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