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Collision detection not always working using move_and_collide on KinematicBody2D with save_margin at 0.001 #36432

Closed
Tracked by #45334
marzecdawid opened this issue Feb 21, 2020 · 3 comments · Fixed by #52953
Closed
Tracked by #45334

Collision detection not always working using move_and_collide on KinematicBody2D with save_margin at 0.001 #36432

marzecdawid opened this issue Feb 21, 2020 · 3 comments · Fixed by #52953
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bug confirmed regression topic:physics
Milestone
4.0

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@marzecdawid
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marzecdawid commented Feb 21, 2020 •
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Godot version:
3.2 stable

OS/device including version:
Windows 10 x64

Issue description:
Video showing the problem.
Collision detection is not always working using two KinematicBody2D objects with save_margin set to very low value like 0.001-0.004. In the gif above all three objects have save_margin at 0.001 and the only difference is a starting position.

Minimal reproduction project:
CollisionBug.zip
Don't forget to enable collision drawing in debugging menu.
Press up arrow key to move objects.
@marzecdawid marzecdawid changed the title Collision detection not working using move_and_collide on KinematicBody2D with save_margin at 0.001 Collision detection not always working using move_and_collide on KinematicBody2D with save_margin at 0.001 Feb 21, 2020
@marzecdawid
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marzecdawid commented Feb 22, 2020 •
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Retested on other versions:
3.2.1: problem is present
3.1.2: problem is present
3.0.6: wasn't able to reproduce the bug

@Calinou Calinou added this to the 4.0 milestone Apr 5, 2020
@akien-mga
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Still reproducible in a18df71 (3.2).

@madmiraal madmiraal mentioned this issue Jan 6, 2021
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@madmiraal
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Fixed with #43616 and its 3.2 version #43617.

@pouleyKetchoupp pouleyKetchoupp mentioned this issue Jan 20, 2021
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@madmiraal madmiraal mentioned this issue Jun 12, 2021
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@pouleyKetchoupp pouleyKetchoupp mentioned this issue Sep 23, 2021
Merged
@pouleyKetchoupp pouleyKetchoupp mentioned this issue Oct 6, 2021
Merged
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bug confirmed regression topic:physics
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4.0
4 participants
@Calinou @akien-mga @madmiraal @marzecdawid