GameMaker Physics Bug - Impulse/Jump angle on curved objects

[Kano_Stuff]

Hi everyone !

I'm new to gml and GMS 2 and i have a weird bug with physics.
(I'm sorry, english isn't my native language, i hope you'll understand me)

twitter.com/kano_stuff/status/869202284118499328
(Inside the link there's is a gif of this bug)

//Jump script (BUTTON A)
if (gamepad_button_check_pressed(0,gp_face1)) && place_meeting(x,y,collider_obj) {
physics_apply_impulse(phy_position_x,0,0,player_jump);
}

I made a while ago a prototype of this game on Construct 2 and the "script" was something like :
Impulse towards position (x,y,impulse) -> (player.x, 0, impulse)

Whatever the player's angle/the ground's angle, the jump was nice and towards the top of the room.

I tried to code something like this but it's not working :/

Can anyone help me ?

 

[Jezla]

physics_apply_local_impulse(0, 0, 0, player_jump);

That should apply the impulse vertically to the instance. Be aware when applying forces and impulses how the parameters relate to the object origin to calculate the correct vectors. The manual explains the specifics for each function.