[SOLVED] Help with physics code

[bluGecko]

Hi,

My current project consists of a game set in space. Originally I was just using GameMaker's default system for movement of the player and enemies. I would now like to switch to using physics (Box2d) as this will provide a more 'floaty' feeling to the movement and much more desirable collisions, which is the effect I am looking for. So far I have managed to convert most of my code to now work with physics.

All I'm left with is this code:

speed = 1 + random(2);
direction = random(4) * 90;
image_angle = direction
alarm_set(0, 100 + random(200));

This code is placed in an Alarm[0] event and is called in the create event.

My question is, how can I get this code to work within the physics engine of GameMaker.

Thank you

 

[maratae]

I don't know and never used physics, but I'm just gonna leave this here, as it might be useful to you: irandom_range()

 

[Jezla]

Apply a local impulse to the object in your alarm event.

var ximpulse = random(90);
var yimpulse = random(90);

physics_apply_local_impulse(0,0, ximpulse, yimpulse);

 

[bluGecko]

Apply a local impulse to the object in your alarm event.

var ximpulse = random(90);
var yimpulse = random(90);

physics_apply_local_impulse(0,0, ximpulse, yimpulse);

Hi, I tried your code, but it seems the NPC objects just move in spurts towards the bottom right corner.

 

[Jezla]

My code was meant as an example. You'll want to adjust how you randomize the ximpulse and yimpulse parameters.

 

[bluGecko]

My code was meant as an example. You'll want to adjust how you randomize the ximpulse and yimpulse parameters.

Hi, after playing around with your code, and using some other methods, I was able to solve the issue.

Thank you