Algodoo

Hey I just thought about a way to detonate projectiles that have been launched somehow.. main problem would be a firing mechanism (which requires breakable hinges) that doesn`t explode at the start of the projectile but when it impacts.. this is what I came up with.. the two grey shapes are forcing the two red blockers against the yellow igniter while being acellerated from the red superbouncy bottom plate. The green box at the top of the shaft is in the same collision group like the yellow igniter but not in the same of the red blockers...
as comparison I cloned the scene with a blue box on top which is in collision group of both the igniter AND the blockers - note that (until the whole thing gets desintegrated by too big speeds) this igniter doesn`t get pushed through the blockers