Thanks for the quick reply. I just started with Construct 2 (as a frustrated clickteam user) and it's a real relieve working with it. I'm impressed

Concerning this bouncing issue, I still wonder whether it wouldn't be more intuitive that the bullet just jumps back in the direction it came from than jumping through?

Eric

In the mean time, I found the root cause of the problem: the sharp bullet gets stuck in the triangle's corner and can not rotate anymore. Apparently, the bouncing algorithm has no strategy to solve this properly and lets the bullet escape through the wall instead.

When I reshape the bullet to a small circle (that can not stuck anymore), the problem doesn't occur anymore...

Eric

This occurs with Release 192 as well .

As I already mentioned, it always occurs when the bullet reaches the upper corner of the triangle. With a square, it is much more difficult to generate the problem...

Eric

Problem Description

Make a triangle of three thick blocks and put a bullet inside. The bullet starts bouncing but after a few seconds it jumps through the upper corner although the blocks are extremely thick and the bullet has a low speed: 1 .

Attach a Capx

____ collission test.capx____

Description of Capx

____see description above ____

Steps to Reproduce Bug

Just start up and watch, problem occurs within 10 to 60 seconds

Observed Result

____ After a while bouncing suddenly fails and jumps through the upper sharp angle____

Expected Result

____ That it stays bouncing ____

Affected Browsers

• Chrome: (YES)
• FireFox: (YES)
• Internet Explorer: (YES)

Operating System and Service Pack

____ Windows 8.1 ____

Construct 2 Version ID

____ Release 190 (32 bit) november 25 2014 ____