zenno: section speed does not use base wit

Per analysis by Aya, only final wit is used for section speed.

Fixes #40.

zenno/src/lib/race.ts

@@ -504,14 +504,12 @@ export function baseTargetSpeed(
 /**
  * Calculate the range of section speed values for a horse in early or mid race.
  * @param raceLen Length of the race in meters
- * @param baseWit Base wit, after mood but before other modifiers
  * @param witStat Final wit stat, including strategy proficiency and skills
  * @param style Horse's running style
  * @param phase Phase of the current section
  */
 export function sectionSpeed(
 	raceLen: number,
-	baseWit: number,
 	witStat: number,
 	style: RunningStyle,
 	phase: Exclude<Phase, Phase.LateRace>,
@@ -520,7 +518,6 @@ export function sectionSpeed(
  * Calculate the range of section speed values for a horse not spurting during late race.
  * @param raceLen Length of the race in meters
  * @param speedStat Final speed stat
- * @param baseWit Base wit, after mood but before other modifiers
  * @param witStat Final wit stat, including strategy proficiency and skills
  * @param style Horse's running style
  * @param distance Hores's distance proficiency aptitude
@@ -529,7 +526,6 @@ export function sectionSpeed(
 export function sectionSpeed(
 	raceLen: number,
 	speedStat: number,
-	baseWit: number,
 	witStat: number,
 	style: RunningStyle,
 	distance: AptitudeLevel,
@@ -537,16 +533,14 @@ export function sectionSpeed(
 ): [number, number];
 export function sectionSpeed(
 	raceLen: number,
-	speedStatOrBaseWit: number,
-	baseWitOrWitStat: number,
+	speedStatOrWitStat: number,
 	witStatOrStyle: number | RunningStyle,
 	styleOrPhase: RunningStyle | Phase,
 	distance?: AptitudeLevel,
 	lateRace?: Phase.LateRace,
 ): [number, number] {
-	const speedStat = lateRace !== undefined ? speedStatOrBaseWit : 0;
-	const baseWit = lateRace !== undefined ? baseWitOrWitStat : speedStatOrBaseWit;
-	const witStat = lateRace !== undefined ? witStatOrStyle : baseWitOrWitStat;
+	const speedStat = lateRace !== undefined ? speedStatOrWitStat : 0;
+	const witStat = lateRace !== undefined ? witStatOrStyle : speedStatOrWitStat;
 	const style = lateRace !== undefined ? (styleOrPhase as RunningStyle) : (witStatOrStyle as RunningStyle);
 	const phase = lateRace !== undefined ? lateRace : (styleOrPhase as Phase);
 	const base = baseSpeed(raceLen);
@@ -555,7 +549,7 @@ export function sectionSpeed(
 		phase === Phase.LateRace
 			? (math.sqrt(500 * speedStat) as number) * distanceProficiencyMod[distance ?? AptitudeLevel.A] * 0.002
 			: 0;
-	const u = (witStat / 550000) * math.log10(baseWit * 0.1);
+	const u = (witStat / 550000) * math.log10(witStat * 0.1);
 	const l = u - 0.0065;
 	return [baseTarget + late + base * l, baseTarget + late + base * u];
 }