Game Mouse Select objects

Source: Internet
Author: User

For the time being only thought, did not go to concrete realization:

Using the idea of collision detection, the accuracy of their own set of collision detection element is what ~

The simplest thing to do is to determine if the point of the mouse is in the bounding body of the sprite element, or if it is selected.

The more complex point is the use of pixel-level collision detection first to determine whether the mouse is in the bounding body, and then by the mouse to obtain the point of the alpha value to determine whether the actual elves collide.

There is also the time when multiple sprites overlap, which can be selected with Z-values.

Record so much first ~

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