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How can I use the CanJump function?
I use a code already, but it don't work:

On player\draw actor i have this code:

Code: Select all

if(canyoujump==1)
{
 yvelocity-8;
}
if(canyoujump==0)
{
 yvelocity-0;
}


and on player\key down space I have

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if(canyoujump==1)
{
 yvelocity-8;
 canyoujump=0;
}
else
{
 yvelocity-0;
}


and on collision I have

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canyoujump=1;
PhysicalResponse(MOVE_EVENT_ACTOR_ONLY, USE_SPECIFIED_MASS, 1.000000, 1.000000, 0.010000, 1.000000);

What did I do wrong?

You don't set yvelocity equal to anything, you simply subtract. To do anything at all you need the equal sign, otherwise you are not setting the variable. Something else to note is that you put in extra code, which you probably did when trying to fix your problem, the following should work.
player -> keydown space -> script editor

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if(canyoujump==1)
{
    yvelocity=-8;
    canyoujump=0;
}

player -> collision (ground) -> script editor

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canyoujump=1;
PhysicalResponse(MOVE_EVENT_ACTOR_ONLY, USE_SPECIFIED_MASS, 1.000000, 1.000000, 0.010000, 1.000000);

Thx worked now except that the player actor jumped only 8 px up in the air.

I need some help with fixing the problem in the post above this one

On DrawActor you need to increase the yvelocity:

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yvelocity += 1;//or some other value

thx

Btw, you'd better use shorter variable names, it's easier to use.
Like, just "jump", 'cause "canyoujump" takes a lot more writing...

I use "ALTjump" instead of "canyoujump" now

Ok...
But why ALT..?

Because I use it in the game i'm currently working on named ALTer(you need to use the ALT keys in that game(that explains the name ALTer))