Hi Tin the code is a little function I used to position and scale sprites on the screen.

Hope this helps

n_iron


/// positions and scales sprite
void positionSprite(int obj, float scaleX,float scaleY, float posX, float posY){
   iObjectScaleSet(obj,Vector3(scaleX,scaleY,0.0)); // main menu
   iObjectLocationSet(obj,Vector3(posX,posY,0.0));
   iObjectShow(obj);
}


I gave it a try, it's a good question.

Below is a function which draws a line from one point to another.

void DrawLine(int obj, Vector3 loc1, Vector3 loc2, float thickness)
{
   Vector3 avLoc = Vector3( (loc1.x+loc2.x)/2, (loc1.y+loc2.y)/2, (loc1.z+loc2.z)/2);
   iObjectLocationSet(obj,avLoc);

   Vector3 difLoc = loc1 - loc2;
   Quaternion q;
   iQuaternionLookAt(q,difLoc,Vector3(0,0,1));
   iObjectOrientationSet(obj,q);

   iObjectScaleSet(obj,Vector3(thickness, iVectorLength(difLoc), 1));
}

void Main()
{
   Vector3 locA, locB;
   iObjectLocation(OBJ_22,locA);
   iObjectLocation(OBJ_44,locB);

   DrawLine(OBJ_0, locA, locB, 0.1);
}
I'm sure you could get this converted to Sprite imposters or something.
Good luck.

Oh RobertooMolvadoo

I have to thankyou again for this, it's exactly what i needed.

I did a quick test and added screen mouse locations to LocB and away we go.

the line follows the mouse perfectly
/// OBJ_0 = sprite to use for the line source
/// OBJ_22 = is used to get the start screen position
/// OBJ_44 = unused at this point, but can be used as the
///          line screen end point
///
/// what i've done below is just update locB.x & locB.y with the
/// mouse screen x & y positions.

void DrawLine(int obj, Vector3 loc1, Vector3 loc2, float thickness)
{
   Vector3 avLoc = Vector3( (loc1.x+loc2.x)/2, (loc1.y+loc2.y)/2, (loc1.z+loc2.z)/2);
   iObjectLocationSet(obj,avLoc);

   Vector3 difLoc = loc1 - loc2;
   Quaternion q;
   iQuaternionLookAt(q,difLoc,Vector3(0,0,1));
   iObjectOrientationSet(obj,q);

   iObjectScaleSet(obj,Vector3(thickness, iVectorLength(difLoc), 1));
}

void Main()
{
   Vector3 locA, locB;
   iObjectLocation(OBJ_22,locA);

   locB.x = iMouseX()*32.0-16.0;
   locB.y = 12.0-iMouseY()*24.0;
   locB.z = 0.0;
   //iObjectLocation(OBJ_44,locB);

   DrawLine(OBJ_0, locA, locB, 0.8);
}
what you get is a line that follows the mouse on screen

an update to the swipe pattern.

I was spending some time thinking on how to setup imposter sprites.

Then just now figured it wasn't really needed, it would make the script more efficient but in my setup, i plan to use the log-in / password ( swipe screen) as a seperate program that calls the main program once a successful log-in has been entered.

With this design, efficiency isn't  required, due to the overall limited scripting needed.

So i'm using instead 12 buttons & 12 sprite lines, each button has it's own line.

As you click & hold and select a button, that actives the buttons line till you hit another ( mouse over ) the next button which repeats the process with the new buttons line.

pretty simple setup.

each button = a password value, & each button can only be selected once per pattern for 12 possible character or value password.

12 character passwords or minimum 4, should keep everyone happy, plus the ability to update/change the password after logging in.

To add to that, the possible use of player names and what ever data can be added for actual accounts to be created.

That's the current vision / design i'm creating.

I'll be back crying, when i hit a brick wall , fingers crossed i'll swerve in time..

i will

This is very odd.

It works fine when you use the object itself instead of an imposter. I have no clue what could be wrong.

final edit, fixed the problem.

as before replace the WHOLE script with this & note the "drawline" function & the 2 added offset lines.
int[] MBO(14);

float Mx, My;

/// OBJ_0  = sprite line source
/// OBJ_22 = Sprite button source & used for start screen positioning
/// OBJ_44 = ValuePrint
/// OBJ_66 = ValuePrint

void DrawLine(int obj, Vector3 loc1, Vector3 loc2, float thickness)
{
   Vector3 avLoc = Vector3( (loc1.x+loc2.x)/2, (loc1.y+loc2.y)/2, (loc1.z+loc2.z)/2);
   iObjectLocationSet(obj,avLoc);

   Vector3 difLoc = loc1 - loc2;

   Quaternion q;
   iQuaternionLookAt(q,difLoc,Vector3(0,0,1));
 
   iObjectOrientationSet(obj,q);
   iObjectScaleSet(obj,Vector3(thickness, iVectorLength(difLoc), 1));

/// these 2 lines correct the offset showing with the imposter
   loc1.x -= difLoc.x/2;
   loc1.y -= difLoc.y/2;

/// hide the original sprite
/// so we only see the imposter
   iObjectHide(obj);

   iObjectImposterShow(obj,0);
   iObjectImposterSet(obj,0,q,loc1);

   OUT_44 = loc1.x;
   OUT_66 = loc1.y;
}

void Main()
{
   if (iInitializing()) DoInt();
   if (iDeinitializing()) DoDeInt();
   
   Mx = iMouseX()*32.0-16.0;
   My = 12.0-iMouseY()*24.0;


   if (iMouseButtonDown(0)){
   Vector3 locA, locB;
   iObjectLocation(OBJ_22,locA);
   iObjectShow(OBJ_0);

   locB.x = Mx;
   locB.y = My;
   locB.z = 0.0;

   DrawLine(OBJ_0, locA, locB, 0.8);
   }
}

//-----------------------
void DoInt(){
   for(int A=0;A<14;A++)MBO[A]=-1;

   iObjectImpostersCreate(OBJ_0,12);  //  Buttons
   iObjectImpostersCreate(OBJ_22,12); //  Lines
   Quaternion q;

   int B=0, C=4;
   float X=-9.0, Y=6.0, Z=0;
 
   for(int A=0;A<4;A++){
      for(B;B<C;B++){
         iObjectImposterSet(OBJ_0,B,q,Vector3(X,Y,Z));
         iObjectImposterHide(OBJ_0,B);
         iObjectImposterSet(OBJ_22,B,q,Vector3(X,Y,Z));
         X += 6;
      }
      X=-9.0; Y-=6.0; C+=4;
   }
}
//------------------------
void DoDeInt(){
   iObjectImpostersDestroy(OBJ_0);
   iObjectImpostersDestroy(OBJ_22);
}