A problem with getangle

[Kyranki]

Currently scripting some custom projectiles however I'm having a problem with my getangle();

PHP Code:

/*

  ** Custom Projectile Notes **
: Attributes
  - Attr 1: Base Direction
  - Attr 2: Speed Calc
  - Attr 3: P-Type, (Random, Track)
  - Attr 4: Tracking Who/Owner, (String: Npc, Player)
  - Attr 5: (Npc/Player Id
  - Attr 6: Coords of mouse click
 
: Variables
  - Speed: How fast this projectile will travel
 
*/
function onCreated() {
  canwarp();
  canwarp2();
  
  setimg("block.png");
  setTimer(0.1);
}
function onTimeout() {
  if (this.attr[3] == "random") {
    echo("Projectile: Has a randomized movement pattern.");
  }
  else if (this.attr[3] == "track") {
    temp.obj = this.attr[4] == "npc" ? this.level.npcs[this.attr[5]] : this.level.players[this.attr[5]];
    if (temp.obj.objecttype() in {"TServerPlayer", "TServerNPC"}) {
      temp.tx = temp.obj.x;
      temp.ty = temp.obj.y;
    
      this.dir = getdir((temp.tx - this.x), (temp.ty - this.y));
      this.attr[1] = getangle((temp.tx - this.x), (temp.ty - this.y));
    }
  }
  this.chat = "Direction: " @ this.dir;
  if (onwall(this.x, this.y))
    destroy();
  for (temp.pl : this.level.players) {
  }
  for (temp.nc : this.level.npcs) {
  }
  this.x += cos(this.attr[1]);
  this.y += sin(this.attr[1]);
   
  setTimer(1);
}
function onPlayerChats() {
  if (player.account in serveroptions.staffdevaccess.tokenize(",")) {
    if (player.chat == ":destroy") {
      destroy();
    }
  }
} 


The major problem is where I use getangle to set this.attr[1]. It's getting the wrong angle tho that should work.

It's moving in an arc away from the player like this... _|

[DustyPorViva]

add(or subtract, I don't remember) pi/2 to the angle.

[Kyranki]

Neither worked Dusty.

[Chompy]

PHP Code:

// for player direction
getangle(vecx(temp.obj.dir), vecy(temp.obj.dir));

// to a target
getangle((this.x - temp.tx), (this.y - temp.ty));

// to the mouse
getangle((mousex - temp.tx), (mousey - temp.ty)); 


Well.... to the point:

PHP Code:

getangle((temp.tx - this.x), (temp.ty - this.y)); 


Change it into:

PHP Code:

getangle((this.x - temp.tx), (this.y - temp.ty)); 


[Kyranki]

Well, Chompy what you said to do was a step in the right direction. It's just going around the player now.

Before what I originally had

PHP Code:

temp.tx - this.x 


worked in another projectile test.

[Chompy]

PHP Code:

this.x += cos(this.attr[1])*speed;
this.y += sin(this.attr[1])*speed; 


[Kyranki]

Didn't work Chompy, the main problem I think is getangle() not working properly. Considering getdir() is working perfectly fine with the same calculations I had in my original post.

[Kyranki]

Problem Solved.

It was where I was calculating the this.x and this.y. I added to the y when I was supposed to be subtracting from it. =D