Scratch

Ok, thanks.  It may be better to download it to actually see the scripts.

I'm not completely certain what kind of projectile firing you want to deal with.  Do you want the bullets to be affected by gravity, or just to move straight?  How many bullets do you want the player to be able to fire? 

Typically, a project like this uses at least one bullet sprite that, when it receives the "shoot" command, goes to the appropriate source of the bullet, moves at a constant speed in a constant direction, until either it hits a target or the edge, and then hides again.  The main problem with this approach is that you can't fire again until the bullet reaches the edge of the screen (or some other obstacle). 

If you want to do multiple projectiles, on the other hand, it gets a little more complicated.  It's do-able, it just takes a bit more time to think about and implement. 

Anyway, reply to this post and I'll see if I can help.

Firedrake969 wrote:

Just look at my game if you need to. it's in my siggy.

No.... your game doesn't give any real clues as to what you want

You could just try to make use of the "glide for _ sec to _ block. Just do something like
glide for (needed amount) sec to (x position) + (10000000)
That way it will glide pretty fast.

Do you want the phhysics, like a cannonball? If you do, you can look at my projects, and learn how to create an arc.

Firedrake969 wrote:

What I need is the projectile pointing a certain way, staying pointed, and moving a couple of steps.  No grav.

Why not just use the move block then?  Otherwise, you can use trig, which basically works out like this:

M=magnitude=total distance you want it to move
change x by M*sin(direction)
change y by M*cos(direction)

To add gravity, simply have to variables that are set to the beginning x and y velocities and then run a script that constantly changes the x and y positions by those and changes the y velocity by your gravity constant.

when gf clicked
forever
if<key [space v] pressed?>
set [bulletDirection v] to ([direction v] of [Plane v])
broadcast [Shoot v] and wait
end
end

when I receive [Shoot v]
go to [Plane v]
show
point in direction (bulletDirection)
repeat until <touching [edge v]?>
move (5) steps
end
hide

Last edited by amcerbu (2012-05-06 17:35:16)

Are the shots fired by the player, or by an A.I. system?

In that case, just download the sequel to my Tanks game, and look at the player's firing scripts. The link to the first game is in my signature. The sequel is in a link in a comment on that project. You'll need the code from the first one to access the second however. But that should solve your problem

What Is your test acount?

Great!  Thanks for helping me.  Is it possible to make the missiles stop moving?

Last edited by Firedrake969 (2012-05-13 19:16:00)