Interactive Fog?

SoyTresEquis

I want to make a fog that the player can Move through, but everything I google ends up being shaders or sprites. None of which has been usable. I've already handled the Gameplay, but the biggest part is the difficulty set by the fog I admit I have a Chimp Brain, but if someone could point me in the right direction.

I'll describe what I need help with: A "Fog" that, as the player passes through (they'll have a Area2D circle that adds a "Level" of danger), every time the player travels over the same "Area" the "Level of danger" will increase. Visually the fog disappears and after 5 minutes, the fog fills back in the trail that the player traveled. I tried "drawing" with the player but I haven't found a method of erasing the "Fog" or drawing an opacity over the fog. I'm assuming I could just add a timer to whatever the end method is and that would be the "Fill in" part. I don't know what else to try.. I tried Light but it doesn't fade.. Should I give up and start something else?

Bean_B_Beanie

I'm unsure how exactly you would keep track of which locations are increasing in level of danger. One way could be by using a TileMap with a TileSet with an opaque tile for the fog (or translucent if you want it to be partly see-through) -- leave out any collision for the TileMap so monsters or whatever could roam around through it. Another way could be to use a Path2D to keep track of key locations (possibly a ping every so often to get the player's position). After, say, 15 points in the Path2D, any older ones are removed as a new one is added to the front of the Path2D. Drawing the fog could possibly be done through shaders, getting the global points of the Path2D and converting them to screen coordinates (possibly by getting the camera and calling camera.to_local() and passing the global points of the Path2D?) which could then be used for a screen shader making the fog. I'm unsure of how to make a fog shader exactly, so someone else may have to respond if this is the option you choose.