Graal Forums - Custom Movement: Help Needed!

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Custom Movement: Help Needed!

Okay so what I have here lets me move fine altho it does not let me move flush against the wall.. and if walking between 2 wall tiles.. example: wall, non, non, wall u have to be perfectly in between the walls to move. Also only lets me move at speeds close to (16/16) i think.

Anyone have any suggestions on making movements twards a wall flush? And is there any way to output the collision points of a onwall2?

PHP Code:


		
			
//#CLIENTSIDE

function onCreated()

{

  this.enabled = true;

  setTimer(0.05);

  if ( this.enabled == true )

  {

    disabledefmovement;

  } else {

      enabledefmovement;

      }

}



function onTimeOut()

{

  this.speed = (8/16);



  for ( i=0; i < 4; i++ )

  {

    if ( keydown(i) )

    {



  temp.tw = ( abs(vecx( i )) == 1 ? 16 : 32 ) / 16;

  temp.th = ( abs(vecy( i )) == 1 ? 16 : 32 ) / 16;

  temp.aa = ( abs(vecy( i )) == 1 ? .5 : 0 );

  temp.tx = player.x + 1 + vecx( i ) * 1 - temp.aa;

  temp.ty = player.y + 1 + vecy( i ) * 1 + temp.aa;

    

      if ( player.ani != "walk" && player.ani != "swim") {

        setAni("walk", null);

      }



      if ( this.enabled == true )

      {

        player.dir = i;

        temp.nx = player.x + vecx(i)*this.speed;

        temp.ny = player.y + vecy(i)*this.speed;

        if ( !onwall2( temp.tx, temp.ty, temp.tw, temp.th ) ) {

          player.x = temp.nx;

          player.y = temp.ny;

        }

      }

    } else {

        if ( !keydown(0) && !keydown(1) && !keydown(2) && !keydown(3) ) {

          if ( !onwater( player.x, player.y ) ) {

            setAni("idle", null);

          }

        }

      }

  }



  if ( onwater( player.x, player.y ) ) {

    if ( player.ani != "swim" ) {

      setAni("swim", null);

    }

  }



  

  setTimer( 0.05 );

  

  // debug only

  showpoly(200,{temp.tx,temp.ty,temp.tx+temp.tw,temp.ty,temp.tx+temp.tw,temp.ty+temp.th,temp.tx,temp.ty+temp.th});

  changeimgcolors(200,1,0,0,.25); 

  

}

Any help or suggestions appreciated.

PS: This is a rough draft. I know its sloppy but its readable non-the-less.

A common technique to 'close the gap' is usually running a loop like such :
for (temp.i=0;i<playerspeed;i+=1/16)
Then checking for an onwall from the player plus the vecx/y of the player's direction * i. If there is a wall, break the loop and add playerx += vecx(playerdir)*i and so on.

There are 2 positions my script checks so would I be using 2 onwall checks then instead of my onwall2? I didn't realise onwall2 used more CPU then onwall. So that will be something I need to change.

Meh, I used onwall2... I find it much more convenient to do two 16x16 onwall2 checks than 4 onwall checks, especially since you only need those two checks for sliding around corners.

Speeds close to 16/16? As in one?

If you mean something along the lines of speeds like x/16, that's fine, as 1/16 is one pixel in Graal coordinates.

I adjust my onwall2 to compensate for whatever speed the player is moving.

Doesn't that make the player stop further away from the wall..?

Not if you close the gap like I explained :)

Well I don't see the point of doing onwall2, as you can't have sliding collision then.

How so? I have sliding collision...