Graal Forums - Gravity

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- NPC Scripting (https://forums.graalonline.com/forums/forumdisplay.php?f=8)

- - Gravity (https://forums.graalonline.com/forums/showthread.php?t=58963)

Well, can anyone tell me how to go about making a gravity script, cause I havent the slightest idea of how to make one.

Just for the record, I'm not asking for a full script so don't give me one, just explain how I should go about doing it, if you know.

Think about the player’s position in the level.
[playerx,playery]

But what? that's all you mainly need to know.
Are you using pics1.png?

well, we are going to use an edit of it.

ahhhh, now i understand the basic concept of it. =]

now to try...but, I need to knwo how to do the onwall checking for moving the player like there's gravity, so the player doenst just go through a wall.

If you're editing the pics1.png I don't think you need a onwall part :o.
(Not to sure on this though, sorry)

Well, can anyone tell me of any errors in this, or if this will work. (Im sure theres at least one error cause rc keeps saying there is, but I can't isolate it)

PHP Code:


		
			
// NPC made by Vash-Aniki(*coreys)

// [Copyright © 2005]

//#CLIENTSIDE

if (created) {

  disabledefmovement;

}

if (client.grav) {

  if (keydown(1)) {

    if (timeout == 0) {

      timeout - 0.35;

      playery -= .5;

      sleep .05;

      if (!onwall(playerx,playery)) {

        playery -= .5;

   }

      sleep .05;

      if (!onwall(playerx,playery)) {

        playery -= .5;

   }

      sleep .05;

      if (!onwall(playerx,playery)) {

        playery -= .5;

   }

      sleep .05;

      if (!onwall(playerx,playery)) {

        playery += .5;

   }

      sleep .05;

      if (!onwall(playerx,playery)) {

        playery += .5;

   }

      sleep .05;

      if (!onwall(playerx,playery)) {

        playery += .5;

   }

      sleep .05;

       if (!onwall(playerx,playery)) {

       playery += .5;

   }

  }

 }

else if (keydown(2)) {

  playerx -= .5;

 }

else if (keydown(3)) {

  playery += .5;

 }

else if (keydown(4)) {

  playerx += .5;

 }

if (!onwall) {

  if (timeout == 0) {

    playery += .5;

  }

 }

else {

  enabledefmovement;

}

Don't mix sleeps and timeouts.

Also: KSI-GS.

Horrible.

PHP Code:


		
			
//#CLIENTSIDE

if (created) {

  disabledefmovement;

}

if (timeout)

{

  this.mx = (keydown(0) - keydown(2))/2;

  this.my = (keydown(3) - keydown(1))/2;

  if (!onwall(playerx + this.mx,playery))

    playerx += this.mx;

  if (!onwall(playerx,playery + this.my))

    playery += this.my;



  playery += 0.1;

  timeout = 0.05;

}

This is a lot better, but may not be what you want (I just rescripted what you did)

Try to keep it short and simple, and make sure that you don't get conditions where events should go... Use KSI-GS... Think about what you really want.

--- EDIT:

Something you might want to take in consideration is that the gravitational pull accellerates with time. Thereby, a constant for the decrease wouldn't be what you're aiming for.

Umm, I'm not that great of a scripter so if you could explain that whole thing out for me that would be great. So i can understand what all that means xD

PHP Code:


		
			
//#CLIENTSIDE

if (created) {

  disabledefmovement;

}

if (timeout)

{

  this.my = (keydown(2) - keydown(0))/2;

  this.mx = (keydown(3) - keydown(1))/2;

  if (!onwall(playerx + this.mx,playery))

    playerx += this.mx;

  if (!onwall(playerx,playery + this.my))

    playery += this.my;



  playery += 0.1;

  timeout = 0.05;

}

// Script Corrected.

First off: Start every group with events... Basically, events are what happens for something to execute:

PHP Code:


		
			
if (timeout) // == Whenever the timeout var reaches 0, it calls a timeout event.

... and...

PHP Code:


		
			
 this.my = keydown(2) - keydown(0);

Okay: Here, the principal is... Whenever up key is pressed, it returns a 1... Whenever down key is pressed, it returns a 1.

this.my = 1 - 0 = 1; That would make it go towards the right.
If no keys are pressed, this.my = 0;... If only the up key is pressed...

this.my = 0 - 1 = -1; So, it would go up.

Onwall tests the actual movement.

PHP Code:


		
			
  playery += 0.1; // Here should be something that increases all the time:

Make it:

PHP Code:


		
			
  if (!onwall(playerx,playery + this.grav))

    this.grav = this.grav + 0.1;

  else this.grav = 0;

  playery += this.grav;

This is a very rough show on how it works... But well, basically, the force of gravity increases steadily everytime that the player can 'fall'.
The rest of the script works with the actual moving of the character.

This better?

PHP Code:


		
			
//Made by Corey "Vash-Aniki(*coreys)" Schram

//[Copyright Corey Schram © 2005]

if (created) {

  timeout = 0.05;

  this.speed = 0.1;

}

if (timeout) {

  if (clientr.grav==1) {

    if (onwall2(playerx,playery-1,3,1) || onwall2(playerx-1,playery,1,3) || onwall2(playerx,playery+3,3,1) || onwall2(playerx+3,playery,3,1)) {

      this.speed = 0;

  }

else {

  playery+=this.speed*2;

  if (keydown(1)) playerx -= 1;

  if (keydown(2)) playery -= 1;

  if (keydown(3)) playerx += 1;

  if (keydown(4)) playery += 1;

  }

 }

}

For a true gravity affect this.speed should increase over time.

Yes. And you can simplify the equation of the movement to what I told you earlier:

PHP Code:


		
			
 this.my = keydown(2) - keydown(0);

 this.mx = keydown(3) - keydown(1);

Other then that... this.speed needs to increase over time...

I don't even know why you check for clientr.grav.

Try this...

PHP Code:


		
			
// NPC made by someone... I hope

if (playerenters) {

hide;

toweapons *Gravity;

playerx=int(playerx);

playery=int(playery);

playerdir=3;

timeout=0.05;

}

if (timeout&&isweapon) {

if (!antigravity) {

if (keydown(0)&&playersprite>=1&&playersprite<=8) playery+=0.5;

if (playerdir==0||playerdir==2) playerdir=gravdir;

if (onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)) {

velocity=0;

playery=int(playery);

if (keydown(6)) velocity=-2;



}

else if (keydown(2)&&playersprite>=1&&playersprite<=8) playery-=0.5;

if (onwall(playerx+0.5,playery-0.1)||onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)||onwall(playerx+1.5,playery-0.1)) velocity=0.1;

else {

if (velocity>-0.1&&velocity<=0) velocity=0.1;

if (velocity>3) velocity=3;

}

if (abs(velocity)>0) {

playery+=velocity/6;

if ((velocity>0&&(onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)))||(velocity<0&&(onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)))) playery=int(playery);

else playery+=velocity/6;

if ((velocity>0&&(onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)))||(velocity<0&&(onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)))) playery=int(playery);

else playery+=velocity/6;

if ((velocity>0&&(onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)))||(velocity<0&&(onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)))) playery=int(playery);

else playery+=velocity/6;

if ((velocity>0&&(onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)))||(velocity<0&&(onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)))) playery=int(playery);

else playery+=velocity/6;

if ((velocity>0&&(onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)))||(velocity<0&&(onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)))) playery=int(playery);

else playery+=velocity/6;

}

velocity+=abs(velocity/4);

if (this.shot==9) {

hideimg 345;

this.shot=0;

}

if (this.shot>0) {

if (this.sd==1) this.sx-=0.75;

if (this.sd==3) this.sx+=0.75;

showimg 345,busterl2d#v(this.sd).gif,this.sx,this.sy;

if (this.sd==1) {

if (testplayer(this.sx,this.sy)>-2) hitplayer testplayer(this.sx,this.sy),2,playerx,playery;

if (testnpc(this.sx,this.sy)>-2) hitnpc testnpc(this.sx,this.sy),2,playerx,playery;

if (testcompu(this.sx,this.sy)>-2) hitcompu testcompu(this.sx,this.sy),2,playerx,playery;

}

if (this.sd==3) {

if (testplayer(this.sx+1,this.sy)>-2) hitplayer testplayer(this.sx+1,this.sy),2,playerx,playery;

if (testnpc(this.sx+1,this.sy)>-2) hitnpc testnpc(this.sx+1,this.sy),2,playerx,playery;

if (testcompu(this.sx+1,this.sy)>-2) hitcompu testcompu(this.sx+1,this.sy),2,playerx,playery;

}

this.shot++;

}

if (playersprite==11&&playerhearts==playerfullhearts) {

this.shot=1;

this.sd=playerdir;

if (this.sd==1) {

this.sx=playerx-2;

this.sy=playery+1;

}

if (this.sd==3) {

this.sx=playerx+2;

this.sy=playery+1;

}

showimg 345,busterl2d#v(this.sd).gif,this.sx,this.sy;

}

if ((keydown(0)||keydown(2))&&!(keydown(1)||keydown(3))) playersprite=0;

if (keydown(1)&&!keydown(3)) playerdir=1;

if (keydown(3)&&!keydown(1)) playerdir=3;

gravdir=playerdir;

}

timeout=0.05;

}

if (created) {

if (keydown(6)) {setani jumpnrun,;}

}

Quote:

Originally Posted by Maxalou2k

Try this...

PHP Code:


		
			
// NPC made by someone... I hope

if (playerenters) {

hide;

toweapons *Gravity;

playerx=int(playerx);

playery=int(playery);

playerdir=3;

timeout=0.05;

}

if (timeout&&isweapon) {

if (!antigravity) {

if (keydown(0)&&playersprite>=1&&playersprite<=8) playery+=0.5;

if (playerdir==0||playerdir==2) playerdir=gravdir;

if (onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)) {

velocity=0;

playery=int(playery);

if (keydown(6)) velocity=-2;



}

else if (keydown(2)&&playersprite>=1&&playersprite<=8) playery-=0.5;

if (onwall(playerx+0.5,playery-0.1)||onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)||onwall(playerx+1.5,playery-0.1)) velocity=0.1;

else {

if (velocity>-0.1&&velocity<=0) velocity=0.1;

if (velocity>3) velocity=3;

}

if (abs(velocity)>0) {

playery+=velocity/6;

if ((velocity>0&&(onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)))||(velocity<0&&(onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)))) playery=int(playery);

else playery+=velocity/6;

if ((velocity>0&&(onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)))||(velocity<0&&(onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)))) playery=int(playery);

else playery+=velocity/6;

if ((velocity>0&&(onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)))||(velocity<0&&(onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)))) playery=int(playery);

else playery+=velocity/6;

if ((velocity>0&&(onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)))||(velocity<0&&(onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)))) playery=int(playery);

else playery+=velocity/6;

if ((velocity>0&&(onwall(playerx+0.5,playery+3)||onwall(playerx+1.5,playery+3)))||(velocity<0&&(onwall(playerx+0.5,playery)||onwall(playerx+1.5,playery)))) playery=int(playery);

else playery+=velocity/6;

}

velocity+=abs(velocity/4);

if (this.shot==9) {

hideimg 345;

this.shot=0;

}

if (this.shot>0) {

if (this.sd==1) this.sx-=0.75;

if (this.sd==3) this.sx+=0.75;

showimg 345,busterl2d#v(this.sd).gif,this.sx,this.sy;

if (this.sd==1) {

if (testplayer(this.sx,this.sy)>-2) hitplayer testplayer(this.sx,this.sy),2,playerx,playery;

if (testnpc(this.sx,this.sy)>-2) hitnpc testnpc(this.sx,this.sy),2,playerx,playery;

if (testcompu(this.sx,this.sy)>-2) hitcompu testcompu(this.sx,this.sy),2,playerx,playery;

}

if (this.sd==3) {

if (testplayer(this.sx+1,this.sy)>-2) hitplayer testplayer(this.sx+1,this.sy),2,playerx,playery;

if (testnpc(this.sx+1,this.sy)>-2) hitnpc testnpc(this.sx+1,this.sy),2,playerx,playery;

if (testcompu(this.sx+1,this.sy)>-2) hitcompu testcompu(this.sx+1,this.sy),2,playerx,playery;

}

this.shot++;

}

if (playersprite==11&&playerhearts==playerfullhearts) {

this.shot=1;

this.sd=playerdir;

if (this.sd==1) {

this.sx=playerx-2;

this.sy=playery+1;

}

if (this.sd==3) {

this.sx=playerx+2;

this.sy=playery+1;

}

showimg 345,busterl2d#v(this.sd).gif,this.sx,this.sy;

}

if ((keydown(0)||keydown(2))&&!(keydown(1)||keydown(3))) playersprite=0;

if (keydown(1)&&!keydown(3)) playerdir=1;

if (keydown(3)&&!keydown(1)) playerdir=3;

gravdir=playerdir;

}

timeout=0.05;

}

if (created) {

if (keydown(6)) {setani jumpnrun,;}

}

MY EYES? Long and unformatted codeseses...

Quote:

Originally Posted by Amagius

MY EYES? Long and unformatted codeseses...

Well, i tried it and it worked...

Quote:

Originally Posted by Maxalou2k

Well, i tried it and it worked...

That doesn't make it a good script.

I know but i made my possible. I'm trying to check for bugs...

ewwwwww......

kaimetsu.. did you lose your modship or something? O.o

back in the old day's you'd be ripping these threads up.

did someone.....BREAK you??

Hes not as hardcore anymore. Duh!

I think i'm going to cry!

:(

Kaimetsu isn't a hardass anymore?

BUT WHO WILL SPANK ME!?

Quote:

Originally Posted by Robin

I think i'm going to cry!

:(

Kaimetsu isn't a hardass anymore?

BUT WHO WILL SPANK ME!?

Me.

Enough with the homosexual jokes :\

Haha, Jagen you dirrty boy :)

Quote:

Originally Posted by Amagius

MY EYES? Long and unformatted codeseses...

Yeah that is really long but I don't get why people like all the damn spaces and "formatting" ... I think it looks better and is easier to read when its like in block type thing like that....

Quote:

Originally Posted by smurfmidgetninja

Yeah that is really long but I don't get why people like all the damn spaces and "formatting" ... I think it looks better and is easier to read when its like in block type thing like that....

Good formatting makes it easier to identify problems with code.

Quote:

Originally Posted by Python523

Me.

ITS JON! ILU!

seriously though, where did the dictatorship go? it's like the drama dried up! :(

Quote:

Originally Posted by Kaimetsu

That doesn't make it a good script.

Oh Kai. I miss you. You should really rip this thread up.

Just giving out code willy-nilly is not learning how to script!

Quote:

Originally Posted by Python523

Me.

Fine just spank him. Leave nothing for me. Fine.

edit: I'm back. =-)