Draw square texture around selected tile

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How would I draw a square to highlight the current tile I have selected? Here is my code for selecting. I just want a transparent square drawn around my current texture if it is possible.

void OnMouseOver() {
	selected = true;
	if(Input.GetMouseButtonDown(0) && breakable == true){
		Destroy(gameObject);
	}
}

1 Answer

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Couple thoughts:

a) You can replace the texture with one that has the extra highlight
b) You can make an extra mesh with that highlight that you turn on/off the renderer

May be other options. What is your ‘tile’? Is it 2d, 3d? Will this be in screen-space or world-space?

Do you want the highlight to appear in world space too, or in the 'HUD'?

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Switching the cube's material seems more appropriate than changing the texture, in the case all your cubes share their materials.

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Yeah, agree with Dakwamine. Look into a Glow shader maybe, although a Fur shader might be ok too.

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