Torque & Math question (simple)

#1 Thats because:
1 - mHealth is a pointer to a character string and not an int, therefore you can't do "mHealth - control->getDamageLevel();" Wrong types.
or
2 - mHealth is an int in which case dSprintf will error because the first parameter should be a pointer to a character.

#2 Without the code or the actual error it is just a guessing game.
Dan is prolly right.
tho I dont see why mHealth would be a string.

#3 Oh, and how would I point it instead of integer it?
I'm really lost on this one.

Edit: Oh and Badguy, I thought this one was silly obvious.. I'll post the code :)

void GuiHealthDisplayCtrl::onRender(Point2I offset, const RectI &updateRect)
{
   // Must have a connection and player control object
   GameConnection* conn = GameConnection::getServerConnection();
   if (!conn)
      return;
   ShapeBase* control = conn->getControlObject();
   if (!control || !(control->getType() & PlayerObjectType))
      return;

   int iHealth = 100 - control->getDamageLevel();
   dSprintf( mHealth, 4, "%d", iHealth );

   dglSetBitmapModulation( mProfile->mFontColor );
   renderJustifiedText(offset, mBounds.extent, mHealth);
   
   //render the child controls
   renderChildControls(offset, updateRect);
}

Here are the errors IF I put iHealth(int) to the string mentioned earlier.

Quote:
Compiling...
guiHealthDisplayCtrl.cc
C:\torque\engine\gui\guiHealthDisplayCtrl.cc(82) : error C2112: pointer subtraction requires integral or pointer operand
C:\torque\engine\gui\guiHealthDisplayCtrl.cc(82) : error C2440: 'initializing' : cannot convert from 'char *' to 'int'
This conversion requires a reinterpret_cast, a C-style cast or function-style cast
Error executing cl.exe.

betatest.exe - 2 error(s), 0 warning(s)

#4 I think the problem is that you are misunderstanding the naming convention being used.

First, when you want to print an integer you first have to convert it to a string. That is what dSprintf is doing. I would bet that mHealth is NOT Max Health. mHealth appears to just be the string representation of the current health, which is used for displaying it in the gui. The m prefix is just part of the naming convention that means it is a class member variable, as opposed to a local variable or a global variable.

Look in the player datablock (or shapebase datablock) for a mMaxDamage member or something similar.

Peace

#5 What you probably want is something like:

int iHealth = (int)(control->getDataBlock()->maxDamage - control->getDamageLevel());

Or something to that effect. getDamageLevel probably returns the percent rather than the actual damage, so you might need to either modify setDamageLevel to store the actual damage, or calculate the actual damage from the percentage of the max damage in your GuiHealthDisplayCtrl::onRender

Peace