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--- 4rpl:commands:setunitwantsern [2024/05/23 07:59] – created Karsten75
+++ 4rpl:commands:setunitwantsern [2024/06/13 18:32] (current) – [Workaround for SetUnitWantsErn(<-uid 0)] Kalli
@@ Line 6: / Line 6: @@
 </WRAP>
 :!: Available in version 2.5 and later.
-====== CommandName ======
+====== SetUnitWantsERN ======
 SetUnitWantsERN(<-UID, <-wantsERN)
@@ Line 17: / Line 17: @@
 <code 4rpl>
 # need worked example
+</code>
+===== Workaround for SetUnitWantsErn(<-uid 0) =====
+<code 4rpl>
+# A unit that has an ERN slotted and receives the 4rpl command to "not want an ERN",
+# will not actually unequip the ERN. As a workaround, it is possible to destroy the unit
+# and recreate it without the ERN. That's what this function is for.
+<-uid GetUnitWantsErn not <-uid GetUnitErnState AND if
+  <-uid @freeErnFromUnit
+ endif
+:freeErnFromUnit
+->UID
+  <-UID getunitconstructingdata ev2 pop dup -1 eq if pop 999 endif ->buildResources
+  <-UID getunittype <-UID getunitposition <-UID getunitsettings createunit dup ->newUID <-buildResources constructunit
+  # Resources that are on the way to the old unit will be lost.
+# Enable/disable the settings that you don't need by commenting them out.
+  <-newUID <-UID
+    # dup2 getunitmaxammo setunitmaxammo
+    dup2 getunitammo setunitammo
+    dup2 getunitcandestroy setunitcandestroy
+    dup2 getunitselectable setunitselectable
+    dup2 getunitenabled setunitenabled
+    dup2 getunitarmed setunitarmed
+    dup2 getunitsupplied setunitsupplied
+    # dup2 getunithealrate setunithealrate
+    # dup2 getunitmaxhealth setunitmaxhealth
+    dup2 getunithealth setunithealth
+    # dup2 getunitrange setunitrange
+    dup2 getunitstuncount setunitstuncount
+    dup2 getunitmovecell dup -1 neq if setunitmovecell else pop pop pop pop endif
+    pop pop
+<-UID 1 1 1 destroyunit
 </code>
 <=[[4rpl:start| Index]]

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