Ever had the problem where you’re firing a bullet or some kind of projectile at high speeds, and it just goes right through the collision object, instead of hitting it?
Here’s a weapon that fires a bullet at random velocities, to demonstrate the issue:
The bullets impact the character in various places, rather than at the first point of contact. I haven’t found a way to enable any kind of continuous contact option, outside of playing with the
safe_margin
setting. I ended up adding a raycast:
It’s definitely a hack, though. The
move_and_collide
should be replaced by the ray query. Using both instructions together could result in an even weirder situation;
move_and_collide
could skip a collision object (the issue we’re trying to fix with the ray query), but then still collide with a different collision object. Then the ray query redoes the same movement and collides with the first object that was missed by
move_and_collide
. Depending on the game, that could mean something like randomly shooting through shields or walls under specific circumstances.
The current approach is essentially a two-pass solution, where the first pass is sloppy, and the second pass works as intended, but doesn’t move the projectile.
The latest version includes a few new enhancements, and an experiment: The sequencer demo uses inventory instances to hold music notes, which can be played back. This was inspired by music trackers that were popular in the 90s, such as Scream Tracker and Impulse Tracker. The sequencer isn’t meant to be a production-ready digital audio …
In this 2018 GDC session, Spry Fox‘s Daniel Cook explains how to keep human beings from being treated as interchangeable, disposable, or abusable when designing multiplayer games. If you’re developing, or thinking about developing a multiplayer game, this is a great talk to better understand the challenges of designing multiplayer interactions that result in more …
Projectiles going through collision objects
Ever had the problem where you’re firing a bullet or some kind of projectile at high speeds, and it just goes right through the collision object, instead of hitting it?
Here’s a weapon that fires a bullet at random velocities, to demonstrate the issue:
The bullets impact the character in various places, rather than at the first point of contact. I haven’t found a way to enable any kind of continuous contact option, outside of playing with the
safe_marginsetting. I ended up adding a raycast:The ray cast looks somewhat like this:
It’s definitely a hack, though. The
move_and_collideshould be replaced by the ray query. Using both instructions together could result in an even weirder situation;move_and_collidecould skip a collision object (the issue we’re trying to fix with the ray query), but then still collide with a different collision object. Then the ray query redoes the same movement and collides with the first object that was missed bymove_and_collide. Depending on the game, that could mean something like randomly shooting through shields or walls under specific circumstances.The current approach is essentially a two-pass solution, where the first pass is sloppy, and the second pass works as intended, but doesn’t move the projectile.
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