Catching Fire =d Options

[randomman159]

I have a 'flaming box'. When a part of the flame (using a ps) touches the normal box, i want the normal boxes variable (nofire) to go down by 1.
Can anyone help me acheive this?

[randomman159]

I also want obj_enemy to set alarm[0] to 5 if it touches fire.

[Drivinucrazy Gam...]

Well, if you're using a particle system for the fire, you can't do collisions with particles, so use objects for the fire or a special bounding box instead.

[Schyler]

How thick is the fire? You could get away with an area check...?

[randomman159]

not really... The fire sort of 'burns' away the object (just a sprite slowly burning from the top) and as it burns down, the fire area shrinks as well. (to make it more realistic)

[Schyler]

Well, in that case, I don't have the GameMaker manual on me but If I remember correctly there aren't any ways to check for particle collisions unless you use an (emitter, transformer? - check the particles tutorial on YoYo Games, it has an example) and detect when the particle kinds change.

Alternatively, if lag is not a problem, using objects would most likely be much easier.

Regards,
-Schyler-

[randomman159]

Ok i will check...

Any other ways though?

[Salmonman]

You could use screen_save() to record a particle system and animate it into a sprite. That what i do. Then you can have a collision and no lag. You could also formulate your own particle system and add in collisions, but you might not want to go that far.

[randomman159]

ok... i tried using collision rectangle... I don't know why it isn't working:

CODE

if collision_rectangle(x-16,flametop,x+16,y,obj_block,0,0)<0
{
    other.nofire-=1
}

if collision_rectangle(x-16,flametop,x+16,y,obj_enemy,0,0)<0
{
        other.life-=1
}

could anyone help?