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I have trouble for getting collision in my game.

I have a physics room and some object. I have two objects where uses physics is active. I make them collide. and it's still ok.

But when I try to add some object without uses physics in my room physics, the two object before can't collide again.

If I remove the object without uses physics, the two object before can collide again.

How to solve the 2 objects with uses physics before. in order to be able collide as before, even though I add objects with non physics in my physics room.

I'm sorry for my bad english.

Steven
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Leonardo Last
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1 Answers1

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I don't think it is possible to detect a collision between a physics object and a non-physics object. However, what you could do is simulate a physics object to act like a non-physics object.

Enable use physics for the non-physics object but manipulate it using the non-physics properties (e.g. vspeed, gravity, etc). Make it a Sensor so that it will trigger a collision without causing the other object to rebound. In the Step/End Step Event of the object, add the following GML code which will update the physics properties of the object based on any changes to the non-physics properties:

phy_fixed_rotation = true;
vspeed += gravity;
vspeed -= sign( vspeed ) * min( abs( vspeed ), friction );
hspeed -= sign( hspeed ) * min( abs( hspeed ), friction );
phy_speed_x = hspeed;
phy_speed_y = vspeed;
phy_position_x = x;
phy_position_y = y;
phy_rotation = -image_angle;

Now you should be able to move the object using non-physics properties, and hence collisions should be detected.

KhanageRush
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