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--- crpl:docs:setdigitalis [2013/01/14 19:03] – created chani
+++ crpl:docs:setdigitalis [2025/02/14 14:57] (current) – external edit 127.0.0.1
@@ Line 1: / Line 1: @@
-TODO
+<- [[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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