Need help with jumping issues

[StanleyG]

Hello, im using gamemaker studio 2 and im trying to create basic platformer.
Im using this simple code for jumping (in the image) and it works kinda fine except sometimes instead of normal (+60) jump my character does only very small (like +5 or +10) jump. Can somebody help me to solve it please? I got physics turned on and the event is attached to "press space" command.

 

[Joe134]

My suggestion would be to remove the + and just have phy_speed_y=60. That way phy_speed_y will always be a set value when you jump, not an addition to current phy_speed_y which could be negative (possibly leading to your object not jumping as high). If this does not solve your problem, then I'm not sure how to fix it...

 

[StanleyG]

Thank you for your suggestion, unfortunately it has no effect, the character still jumps very low sometimes

 

[Tyler Logsdon]

Are you using keyboard pressed event or keyboard event? You might have it set the yspeed to 0 when you release up

 

[StanleyG]

Its keyboard pressed event.

 

[Tyler Logsdon]

And what do you have for keyboard release?

 

[StanleyG]

Nothing. I tried to switch the event to "key down" instead and when I did and held space in "game" the character just did one normal jump and when he landed he kept doing the small jumps all the time (while still holding space).
I think it has something to do with restitution, can I disable it somehow? When I set it to 0 in physics menu, my character cant jump at all.

 

[StanleyG]

Alright I solved it, I was just dumb when writing the code. The phy_speed_y = 60 was supposed to be -60. With phy 60 the force applied from top to bottom so thanks to restitution he wasnt really jumping rather than just bouncing off the surface. Also when I disabled restitution he couldnt jump because the force couldnt bounce him. With -60 it works properly even with restitution =0.