Custom Projectile

[Pelikano]

PHP Code:

function onPlayerChats() {
  if (player.chat == ":destroy")
    this.destroy();
}
//#CLIENTSIDE
function onCreated() {
  setimg("era_pl9-bullet.png");
  setshape(1,32,32);
  setTimer(0.05);
  this.owneraccount = player.account;
  this.dird = player.dir;
  this.spread = random(-client.spread,client.spread);
  scheduleevent(5,"Destroy","");
}
function onTimeOut() {
  this.x += vecx(this.dird) + (player.dir in {0, 2} ? this.spread/16 : 0);
  this.y += vecy(this.dird) + (player.dir in {1, 3} ? this.spread/16 : 0);
  setTimer(0.05);
} 


I am trying to make a custom projectile.
Well, it works fine unill now, the only part that is missing, is the damage part.

Well, I am stuck, how can I make it damage on Hit, without using shoot()?

[xXziroXx]

You'll have to detect in a timeout if the projectile is on a player/npc, and thus... BOOM.

[Codein]

I'd probably do something like this in the timeout loop:

PHP Code:

for (pl: players) {
  if (this.x in |pl.x, pl.x + 3| && this.y in |pl.y, pl.y+ 3|) {
    //hit stuff
  }
} 


I think you'd do something similar for NPCs.

[cbk1994]

Might be easier or more efficient to use findnearestplayer()

[Pelikano]

Originally Posted by Codein

I'd probably do something like this in the timeout loop:

PHP Code:

for (pl: players) {
  if (this.x in |pl.x, pl.x + 3| && this.y in |pl.y, pl.y+ 3|) {
    //hit stuff
  }
} 


I think you'd do something similar for NPCs.

You're a genius dude.

Thanks.

[xXziroXx]

PHP Code:

for (temp.i = 0; temp.i < 2; temp.i++) {
  for (temp.obj: i ? npcs : players) {
    if (this.x in |obj.x, obj.x + 3| && this.y in |obj.y, obj.y+ 3|) {
      //hit stuff
    }
  }
} 


There, now you have a loop for both players and NPC's.

[Pelikano]

Originally Posted by xXziroXx

PHP Code:

for (temp.i = 0; temp.i < 2; temp.i++) {
  for (temp.obj: i ? npcs : players) {
    if (this.x in |obj.x, obj.x + 3| && this.y in |obj.y, obj.y+ 3|) {
      //hit stuff
    }
  }
} 


There, now you have a loop for both players and NPC's.

Why would I need a loop for the player and for the Projectile?
o_O

[xXziroXx]

Originally Posted by Pelikano

Why would I need a loop for the player and for the Projectile?
o_O

So you're saying your projectiles will only be able to damage players, and not NPC's? If that's the case, by all means, use Codein's loop, but otherwise you'd need mine.

[Pelikano]

Well, I don't have any NPCs

[[email protected]]

you will if you're making an era type server, trust me.

[Codein]

I'd also use a gani for the bullet, rather than it being a static image.

[Pelikano]

Well.
Thanks again, I got another question tho:

I am trying to make the projectile destroy after 3 seconds, so I'm using:

scheduleevent(3,"StarDestroy","");

function onStarDestroy() {
triggeraction(this.x + 6/16, this.y + 6/16, "StarDestroy", nil);
}

function onActionStar() {
this.destroy();
}

And it doesnt work x_X, am I triggering it wrong, or what? :o

[DustyPorViva]

Why are you triggering an action to destroy it? Just destroy it in the function.

[Pelikano]

Uhm..
Well, because when I use this.destroy(); clientside, it doesn't really destroy it o_O

[Chompy]

Originally Posted by Pelikano

Uhm..
Well, because when I use this.destroy(); clientside, it doesn't really destroy it o_O

Then just do something like this:

PHP Code:


function onCreated() {
  setTimer(3);
}

function onTimeout() {
  destroy();
}
//#CLIENTSIDE

// All your clientside code here 


[Pelikano]

Good idea, but I'm using a function onCreated Clientside already and I need that function onCreated Clientside, because I start a timer clientside with that function, which is needed oO

Also "destroy();" would destroy the whole script I heard xD

[Codein]

Originally Posted by Pelikano

Good idea, but I'm using a function onCreated Clientside already and I need that function onCreated Clientside, because I start a timer clientside with that function, which is needed oO

You can have an onCreated() serverside and an onCreated() clientside at the same time.

Originally Posted by Pelikano

Also "destroy();" would destroy the whole script I heard xD

It should only destroy the NPC, not the entire script.

[Pelikano]

Really?
Awesome, thank you.
I'll try that

Works perfect.
Thanks.

[Pelikano]

Ok another thing.
I decided to move the projectile serverside, because I was told that I had to do it like that, so it looks somewhat like this:

PHP Code:

function onCreated() {
  setimg("shuriken_icon.gif");
  setshape(1,12,12);
  this.dird = player.dir;
  this.spread = random(-client.spread,client.spread);
  dontblock();
  scheduleevent(3,"StarDestroy","");
  setTimer(0.1);
}
function onTimeOut() {
  if (!onwall(this.x + 6/16 + vecx(this.dir)*7/16, this.y + 6/16 + vecy(this.dir)*7/16)) { 
    this.x += vecx(this.dird) + (player.dir in {0, 2} ? this.spread/16 : 0);
    this.y += vecy(this.dird) + (player.dir in {1, 3} ? this.spread/16 : 0);
    setTimer(0.1);
  }
  triggeraction(this.x + 6/16 + vecx(this.dir)*8/16,this.y + 6/16 + vecy(this.dir)*8/16,"StarDamage",nil);
} 


Well, it does not work at all anymore!
The projectile gets spawned in front of my player, yes, but it doesn't move anymore.
While debugging I figured out that "this.spread" and "this.dird" are both 0 now and won't get set to what I want them to get set oO

x_X
Anyone?

[xXziroXx]

That's because "onCreated" serversided in a local NPC isn't an event triggered related to a player, so "player" equals NULL.

You'll need to pass the player object through your putnpc function, similar to this:

PHP Code:

temp.foobar = putnpc2(x, y, "");
foobar.owner = player; 


Then you can just replace "player" with "this.owner" in the script.

[Pelikano]

I don't get it

[xXziroXx]

Post the part of your code that you use to spawn projectiles please.

[Pelikano]

function onActionServerSide() {
putnpc2(params[0],params[1],"join bullet;");
}

[Codein]

Originally Posted by Pelikano

function onActionServerSide() {
putnpc2(params[0],params[1],"join bullet;");
}

Yeah. You should do this:

PHP Code:

function onActionServerside() {
  temp.proj = putnpc2(params[0], params[1], NULL);
  temp.proj.owner = player;
  temp.proj.join("bullet");
 
} 


Then, for the dir, type this.owner.dir instead of player.dir.

[xXziroXx]

Change that, too...

PHP Code:

function onActionServerSide() {
  temp.npc = putnpc2(params[0],params[1],"");
  npc.owner = player;
  npc.join("bullet");
} 


... and your projectile script too...

PHP Code:

function onCreated() {
  setimg("shuriken_icon.gif");
  setshape(1,12,12);
  this.dird = this.owner.dir;
  this.spread = random(-this.owner.client.spread, this.owner.client.spread);
  dontblock();
  scheduleevent(3,"StarDestroy","");
  setTimer(0.1);
}

function onTimeOut() {
  if (!onwall(this.x + 6/16 + vecx(this.dir)*7/16, this.y + 6/16 + vecy(this.dir)*7/16)) { 
    this.x += vecx(this.dird) + (this.owner.dir in {0, 2} ? this.spread/16 : 0);
    this.y += vecy(this.dird) + (this.owner.dir in {1, 3} ? this.spread/16 : 0);
    setTimer(0.1);
  }
  triggeraction(this.x + 6/16 + vecx(this.dir)*8/16,this.y + 6/16 + vecy(this.dir)*8/16,"StarDamage",nil);
} 


[Pelikano]

Yes I know.. it works fine.
But I don't understand it lol x_X

Why "this.ower"?

What's this? x_X:

"temp.proj.owner = player;"


Why "NULL"?!

Wtf?! temp.proj.join("bullet");

[Pelikano]

Can't I just set "this.dird" and "this.spread" in a "function onCreated" Clientside and then send it to the server?

If I can do that, how do I send it to the server using triggeraction?

Omg I am so confused lol

[Codein]

Originally Posted by Pelikano

Yes I know.. it works fine.
But I don't understand it lol x_X

Why "this.ower"?

What's this? x_X:

"temp.proj.owner = player;"


Why "NULL"?!

Wtf?! temp.proj.join("bullet");

The player object is being assigned to temp.proj.owner. Then, in the NPC, you can access the player object who created it, through this.owner.

[xXziroXx]

Originally Posted by Pelikano

Why "this.ower"?

You can name it whatever you want, I chose owner to represent it's the person who spawned it.

Originally Posted by Pelikano

"temp.proj.owner = player;"

As I said, you can't access "player" in a serversided onCreated(), since it's not an event related to a player but rather when the script is executed the first time.

Originally Posted by Pelikano

Why "NULL"?!

NULL and "" is the same thing, more or less. In this case it doesn't matter which you use.

Originally Posted by Pelikano

Wtf?! temp.proj.join("bullet");

Yes, let me explain:

temp.npc = putnpc(x, y, ""); - This spawns an NPC on the coordinates x and y. By doing it like this you can change the values of the spawned NPC by accessing "temp.npc".

npc.owner = player - This sets the this.owner in the projectile to the player object, so you can access data from the player who spawned the projectile.

npc.join("bullet"); - This joins the newly spawned NPC to your projectile class.


Just try the code I gave you man, it'll work.

[Pelikano]

Thank you.

I'll read this 50 times now untill I understand it

Also what you gave me doesn't work.

[xXziroXx]

Originally Posted by Pelikano

Also "destroy();" would destroy the whole script I heard xD

By the way, that only happens if you use destroy() serversided in a Weapon or DB NPC.