Get max 1 power from the DNA vaults (#15197)

Co-authored-by: joep van der velden <15887760+farie82@users.noreply.github.com>

code/modules/station_goals/dna_vault.dm

@@ -164,7 +164,7 @@ GLOBAL_LIST_INIT(non_simple_animals, typecacheof(list(/mob/living/carbon/human/m
 	var/list/dna = list()
 
 	var/completed = FALSE
-	var/list/power_lottery = list()
+	var/static/list/power_lottery = list()
 
 	var/list/obj/structure/fillers = list()
 
@@ -254,6 +254,8 @@ GLOBAL_LIST_INIT(non_simple_animals, typecacheof(list(/mob/living/carbon/human/m
 			data["used"] = FALSE
 			data["choiceA"] = L[1]
 			data["choiceB"] = L[2]
+		else if(L)
+			data["used"] = TRUE
 	return data
 
 /obj/machinery/dna_vault/ui_act(action, params)

tgui/packages/tgui/interfaces/DnaVault.js

@@ -6,13 +6,12 @@ export const DnaVault = (props, context) => {
   const { act, data } = useBackend(context);
   const {
     completed,
-    used,
   } = data;
   return (
     <Window>
       <Window.Content>
         <DnaVaultDataBase />
-        {!!(completed && !used) && (
+        {!!completed && (
           <GeneTherapySelection />
         )}
       </Window.Content>
@@ -78,6 +77,7 @@ const GeneTherapySelection = (props, context) => {
   const {
     choiceA,
     choiceB,
+    used,
   } = data;
   return (
     <Section title="Personal Gene Therapy">
@@ -87,28 +87,37 @@ const GeneTherapySelection = (props, context) => {
         mb={1}>
         Applicable Gene Therapy Treatments
       </Box>
-      <Grid>
-        <Grid.Column>
-          <Button
-            fluid
-            bold
-            content={choiceA}
-            textAlign="center"
-            onClick={() => act('gene', {
-              choice: choiceA,
-            })} />
-        </Grid.Column>
-        <Grid.Column>
-          <Button
-            fluid
-            bold
-            content={choiceB}
-            textAlign="center"
-            onClick={() => act('gene', {
-              choice: choiceB,
-            })} />
-        </Grid.Column>
-      </Grid>
+      {(!used && (
+        <Grid>
+          <Grid.Column>
+            <Button
+              fluid
+              bold
+              content={choiceA}
+              textAlign="center"
+              onClick={() => act('gene', {
+                choice: choiceA,
+              })} />
+          </Grid.Column>
+          <Grid.Column>
+            <Button
+              fluid
+              bold
+              content={choiceB}
+              textAlign="center"
+              onClick={() => act('gene', {
+                choice: choiceB,
+              })} />
+          </Grid.Column>
+        </Grid>
+      )) || (
+        <Box
+          bold
+          textAlign="center"
+          mb={1}>
+          Users DNA deemed unstable. Unable to provide more upgrades.
+        </Box>
+      )}
     </Section>
   );
 };