Adventures of Tron (hit detection)

[G-type]

Can anyone pinpoint where exactly the hitbox is to register a collision between your man and the bit? As near as I can tell its his legs (only while jumping; disabled when dropping down a level or riding an elevator)

[Kiwi]

Usually hardware collusion occurs when the object's pixel touch to each other.

[Thomas Jentzsch]

...pixel touch to each other.

<nitpickmode>Actually they have to overlap.</nitpickmode>

[G-type]

... but which pixels are used? because many times, they appear to pass through each other unimpacted. (its one of the frustrating points of the game)

Edited June 21, 2017 by G-type

[Thomas Jentzsch]

Each object you see is created either by a player or a missile. The game uses the hardware to check for collisions between players and missiles, and the hardware doesn't care which pixels overlap.

This sounds perfect, but only as long as there is not flicker combined with too fast moving objects. Then the collision may not trigger if the overlapping is only virtual. E.g. if a missile goes through a target, and the moment they would overlap, either the missile or the target is not drawn due to flicker. Then hardware cannot detect the collision.

 

Maybe that's the case here.

[G-type]

so perhaps the reason it seems that it only registers a collision when the legs touch is that is maximizes the amount of time the two items are overlapping?