Graal Forums - Finding players in Z range

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- - Finding players in Z range (https://forums.graalonline.com/forums/showthread.php?t=134269256)

Finding players in Z range

PHP Code:


		
			
  triggeraction(player.x + 1.5 + vecx(player.dir) * 1.5, player.y + 2 + vecy(player.dir) * 1.5, "Lighthurt", player.dmg);

How do I also do a check to make sure the player in front is within a certain z-range?

You can use vectorDist()

PHP Code:


		
			
vectorDist(
  {player.x, player.y, player.y},
  {obj.x, obj.y, obj.z}
);

Checks the distance from one object to another based on the x, y and z properties of both objects. Failing that, you can use a distance formula (search the forums).

Quote:

Originally Posted by Emera (Post 1727597)

[...]

I'm sure he ment how to find players within a certain range, not how to get the range. You could do that the following way using findNearestPlayers():

PHP Code:


		
			
function attackPlayers(from_x, from_y, distance_max) {
  for (temp.pl: findNearestPlayers(temp.from_x, temp.from_y) {
    temp.dx = temp.pl.x - temp.from_x;
    temp.dy = temp.pl.y - temp.from_y;
    
    temp.distance = (dx^2 + dy^2) ^ 0.5; //calculate distance
    echo("Distance to " @ temp.pl.account @ ": " @ temp.distance);

    if (temp.distance > temp.distance_max) continue; //ignore players that are further away than you want them to be
    //do stuff to the players within the given range
  }
}

Quote:

Originally Posted by callimuc (Post 1727598)

I'm sure he ment how to find players within a certain range, not how to get the range. You could do that the following way using findNearestPlayers():

PHP Code:


		
			
function attackPlayers(from_x, from_y, distance_max) {

  for (temp.pl: findNearestPlayers(temp.from_x, temp.from_y) {

    temp.dx = temp.pl.x - temp.from_x;

    temp.dy = temp.pl.y - temp.from_y;

    

    temp.distance = (dx^2 + dy^2) ^ 0.5; //calculate distance

    echo("Distance to " @ temp.pl.account @ ": " @ temp.distance);



    if (temp.distance > temp.distance_max) continue; //ignore players that are further away than you want them to be

    //do stuff to the players within the given range

  }

}

I may be doing it wrong.. but the way I did it seems so much simpler...

in the action-

PHP Code:


		
			
  triggeraction(player.x + 1.5 + vecx(player.dir) * 4, player.y + 2 + vecy(player.dir) * 4, "Lighthurt", player.dmg, player.z+3, player.z-3);

in the hurt function-

PHP Code:


		
			
if (player.z < params[1]){

if (player.z > params[2]){

Ah I now get it. You'd need to make a player class (like a health class) to check what the players z value is (inside the onActionLighthurt()) and control any further stuff from there on.

PHP Code:


		
			
function onActionLighthurt() {

  if (player.z in |-3, 3|) { //players Z value goes from -3 to 3

    //same as if (player.z >= -3 && player.z <= 3)

    //Do your stuff inside here

    player.chat = "'eyy";

  }

}

for the triggerAction() you'd only need to do triggeraction(player.x + 1.5 + vecx(player.dir) * 4, player.y + 2 + vecy(player.dir) * 4, "Lighthurt", player.dmg); now

Quote:

Originally Posted by callimuc (Post 1727600)

Ah I now get it. You'd need to make a player class (like a health class) to check what the players z value is (inside the onActionLighthurt()) and control any further stuff from there on.

PHP Code:


		
			
function onActionLighthurt() {

  if (player.z in |-3, 3|) { //players Z value goes from -3 to 3

    //same as if (player.z >= -3 && player.z <= 3)

    //Do your stuff inside here

    player.chat = "'eyy";

  }

}

for the triggerAction() you'd only need to do triggeraction(player.x + 1.5 + vecx(player.dir) * 4, player.y + 2 + vecy(player.dir) * 4, "Lighthurt", player.dmg); now

Thanks for input!

I have a little side question though. How do I change the player's location on the screen?

For example, if I want the player a little further down the screen instead of centered?
Is this possible?

Quote:

Originally Posted by i8bit (Post 1727601)

For example, if I want the player a little further down the screen instead of centered?
Is this possible?

Take a look at:
resetfocus();
and
setfocus(x, y);