2D Blood that sticks to the scenery

Hi!

I am making a 2D game that is pretty much based around blood. So I would like to add something like the blood in “Bloody Trapland” where the blood sticks to the scenery but fades away over time.

Image:

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I really don’t know how I can make something like this or how I can start. So any ideas on how I can start/make this would be really appreciated!

Thanks in advance!

This is just a thought off the top of my head. Have you tried anything like have two different states for your scenery?

What you might be able to do is use a bool to check if the object is “bloody”. If it is, start a method that will change the image back to its “regular” form