fix(movement): lock target during ram — no switching until target dies or ram exits

ModularBot_garage/src/ModularBot.nim

@@ -174,6 +174,8 @@ method onBotDeath*(bot: ModularBot, e: BotDeathEvent) =
   bot.enemyTracker.markDead(e.victimId)
   if bot.enemyCount > 0:
     dec bot.enemyCount
+  if e.victimId == bot.currentTargetId:
+    bot.isRamming = false
 
 method onGameStarted*(bot: ModularBot, e: GameStartedEventForBot) =
   # minNumberOfParticipants == maxNumberOfParticipants for fixed battles; self is -1
@@ -256,13 +258,14 @@ method run*(bot: ModularBot) =
     setRadarTurnRate(radarRate)
     go()
 
-    # --- Target selection (sticky) ---
-    let candidateId = selectTarget(bot.enemyTracker, getX(), getY(), tmClosest)
-    if bot.shouldSwitchTarget(candidateId):
-      if candidateId != bot.currentTargetId:
-        bot.currentTargetId = candidateId
-        bot.targetSwitchTick = bot.tick
-        bot.printConfig("target")
+    # --- Target selection (sticky) --- lock target during ram to prevent dangerous switch
+    if not bot.isRamming:
+      let candidateId = selectTarget(bot.enemyTracker, getX(), getY(), tmClosest)
+      if bot.shouldSwitchTarget(candidateId):
+        if candidateId != bot.currentTargetId:
+          bot.currentTargetId = candidateId
+          bot.targetSwitchTick = bot.tick
+          bot.printConfig("target")
 
     # --- Aim + fire from tracked state (not scan event) ---
     let tid = bot.currentTargetId