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<- [[crpl:crplreference| CRPL reference]] <- [[crpl:crplreference#digitalis_Commands|Digitalis Commands]]
=====  SetDigitalis  =====

^Arguments^Result^Notation^
|X, Y, Amt| |''x1 y1 f1 -- ''|


=== Description ===
Sets Amt of Digitalis at coordinates. 
An Amt of 1 means full health Digitalis, -1 means killed or not-yet-grown, and 0 means no Digitalis will grow until further modification.

=== Zero quirk ===
FIXME This is based on experiment and observation, not source knowledge.

Using this command to set the Digitalis level to zero results in never-regrowing Digitalis, even if there is Digitalis "growth" (pathway) present. Setting to -1 causes (seemingly) normal behaviour. Pressing "Delete Digitalis" in the editor returns cells to normal.

=== Examples ===

^Weapon^Radius^Amount^
|Blaster|1|.52|
|Mortar|3|.52|
|Strafer|2|.35|
|Bertha|10|.7|

  * ** Emulating the in game weapons **\\ %% %% \\ //

Note: blasters will not injure digitalis that is uphill ever. //\\ %% %%\\ <code>
#This function takes four arguments, a centre, then a range, then an amount.
:damageDigitalis
  #Load up the arguments.
  ->amount ->r ->y0 ->x0
  #Optimization: precalculate r^2.
  <-r dup mul ->r2
  #Consider a radius shaped box about the origin.
  <-r 1 add 0 <-r sub do
    <-r 1 add 0 <-r sub do
      #Cull squares in the box not in the circle.
      I dup mul j dup mul add <-r2 lte if
        #Translate to our site of action.
        I <-x0 add J <-y0 add dup2
            #Make sure to not inadvertently set digitalis to 0, making it never regrow
            GetDigitalis ->DigiPresent
            <-DigiPresent <-amount gt if
                <-DigiPresent <-amount sub SetDigitalis
            else
                <-DigiPresent -1 SetDigitalis
            endif
      endif
    Loop
  Loop
</code>

  * **Lay down Digitalis on 3x3 grid under a unit**\\ %% %% \\ //The reason for the 2 is that the limit is one more than the loop iterates through.  So, "3 0 do loop" goes through the values 0,1,2... but not three. Using these limits  will make your walker lay down a 3x3 grid of Digitalis. //\\ %% %%\\ <code>
CurrentY 2 add CurrentY 1 sub do
  CurrentX 2 add CurrentX 1 sub do
    I J true SetDigitalisGrowth
    I J 1 SetDigitalis
  Loop
Loop

</code>
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