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Battle 2k & 2k3 - Verify and implement correct escape algo #2150

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fmatthew5876 opened this issue Apr 14, 2020 · 2 comments · Fixed by #2151
Closed
2 tasks done

Battle 2k & 2k3 - Verify and implement correct escape algo #2150

fmatthew5876 opened this issue Apr 14, 2020 · 2 comments · Fixed by #2151

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@fmatthew5876
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fmatthew5876 commented Apr 14, 2020

Making a separate issue for this since it's complex

  • Verify rules for 2k escape and fix if needed
  • Verify rules for 2k3 escape and implement
@fmatthew5876
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fmatthew5876 commented Apr 19, 2020

2k Escape Rules

The offsets here are from 2ke

  • AvgActorAgi 0x832D8
max(1, sum(actor.agi) / num_actors)
  • AvgMonsterAgi 0x486C94
max(1, sum(monster.agi) / num_monsters)
  • Initial flee chance 0x4795A4:49
int ratio = 100.0 * ((double)avg_monster_agi / (double)avg_actor_agi);
fleeChance = clamp(150 - ratio, 64, 100)
  • Rules for allowing escape at the option window 0x47a434:75
if (escapeAllowed)
  • Success check on escape command 0x47AEF8:25
randInclusive(0,99) < fleeChance || firstStrike
  • What happens if you fail? 0x47AEF8:38
fleeChance += 10
  • After the first round
firstStrike = 0

@fmatthew5876
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fmatthew5876 commented Apr 19, 2020

2k3 Escape Rules

  • Initial flee chance

Same as 2k

  • Rules for allowing escape at the option window
escapeAllowed && (numTurns == 0) && 
    (firstStrike || encounterCondition == surround || encounterCondition == surround)
  • Rules for allowing actor escape
escapeAllowed && encounterCondition != pincer
  • What happens when you escape from option window

fleeChance not checked, escape automatically succeeds

  • Success check on actor escape command
  if ( rand(0, 99) < fleeChance || firstStrike )

RPG_RT bug: Escape is not guaranteed for initiative or surround! Only for normal battles with first strike flag set.

  • What happens if you fail
fleeChance += 10;
  • When an actor takes a non-escape action

0x49A04C

firstStrike = 0;

@fdelapena fdelapena added this to the 0.6.3 milestone Jul 17, 2020
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