Float precision after mathematical operations and Display %f **SOLVED**

[Knox]

Hi,

I just want to be able to display a player's health in percentage using floats. I tried with int's at first hoping (somehow!) it would convert automatically to a 1 decimal float...anyways, I tried this by placing 1 decimal for my initial floats:

Declared at top of global script:

Code: ags

float playerHealth = 18.0;
float playerHealthPercent = 100.0;

In a custom function:

Code: ags

function playerModifyHealth(float fHealthAmount)
{
  playerHealth = (playerHealth + fHealthAmount);
  playerHealthPercent = ((playerHealth/18.0)*100.0);
}

When player is clicked on:

Code: ags

cEgo.Say("My health is %f percent", playerHealthPercent)

However, the float percentage gets displayed with 6 decimal points...I thought of "truncate" but it seems to be for strings only. Is there a way outside of using a module or converting the numbers to strings to truncate the 6 decimal precision on floats to 1 decimal, as in...95.5%, or 1.5%...?

If not, is there a way to round off the float to the nearest number so that 93.4% would give me 93% ?

[Khris]

It doesn't matter how many decimals the initial float value has.
The string formatting code for a one decimal float is

  %.1f

(The manual entry on Display has a link to the string formatting section.)

Code: ags

  cEgo.Say("My health is %.1f%%", playerHealthPercent);

In theory you could use Truncate, but only after converting the float to a String (using String.Format).

Edit: Btw, rounding floats is done using FloatToInt().

[Gord10]

Display("%% %.2f",f); should solve it. %.Xf means X digits are shown as the floating number.

[Knox]

aw shucks guys I missed that in the manual...

Ok Im going to see what I can do with it, thanks!