[fixed] You no longer can take fall damage twice on the same tick

[mugg91]

Status

• READY: this PR is (to the best of your knowledge) ready to be incorporated into the game.

Description

[fixed] You no longer can take fall damage twice on the same tick

Fixes #2183

When applying the fall damage hit in FallDamage.as, the game time is saved to the blob.
At the beginning of onCollision() the code drops out if it detects that it's the same tick again so it doesn't apply the hit twice.

I'm not sure why it happens in the first place. This is just a simple fix I came up with. Of course it could be worth looking for the root of the problem.

Tested in offline and online, works correctly.

Reproduction

Build a construction like in the screenshot from the issue linked above.
You have to be standing on a corner with the block being on your left or right side of the character.
When getting bounced down, you are taking two hits for 1 heart of total damage. After this PR, it is only one hit for a total of 0.5 hearts damage

[Vam-Jam]

I'm not sure why it happens in the first place

It's to do with box2d, each tile is made up of segments, on a corner, you can touch two segments, so the onCollision hook gets called twice since the game reports you touched two different segments at fast enough speeds.