Climacteric is 20% chance to skip, not 20% chance to ovulate

1.4/Languages/English/Keyed/RJW_Menstruation.xml

@@ -120,6 +120,8 @@
   <Option_EstrusRelationship_Label>Hookup minimum opinion in estrus</Option_EstrusRelationship_Label>
   <EstimatedCumLifespan>Estimated sperm lifespan</EstimatedCumLifespan>
   <EstimatedEggLifespan>Estimated egg lifespan</EstimatedEggLifespan>
+  <OvulationChanceLabel>Ovulation {0}</OvulationChanceLabel>
+  <OvulationChanceDesc>Chance of each egg being released during ovulation.</OvulationChanceDesc>
   <FertilityDesc>Implantation chance of fertilized eggs.&#10;Chance of fertilization this hour: {0}%</FertilityDesc>
   <Option_PregnancyFromBaseRJW_Label>Use basic RJW pregnancy</Option_PregnancyFromBaseRJW_Label>
   <Option_PregnancyFromMultiplePregnancy_Label>Use menstruation multiple pregnancy</Option_PregnancyFromMultiplePregnancy_Label>

1.4/source/RJW_Menstruation/RJW_Menstruation/DebugActions.cs

@@ -10,7 +10,7 @@ namespace RJW_Menstruation
         private static void SetFollicular(Pawn p)
         {
             foreach (HediffComp_Menstruation comp in p.GetMenstruationComps())
-                comp.curStage = HediffComp_Menstruation.Stage.Follicular;
+                comp.GoNextStage(HediffComp_Menstruation.Stage.Follicular);
             Messages.Message($"{p} is now follicular", p, MessageTypeDefOf.NeutralEvent, false);
         }
 
@@ -18,7 +18,7 @@ namespace RJW_Menstruation
         private static void SetOvulatory(Pawn p)
         {
             foreach (HediffComp_Menstruation comp in p.GetMenstruationComps())
-                comp.curStage = HediffComp_Menstruation.Stage.Ovulatory;
+                comp.GoNextStage(HediffComp_Menstruation.Stage.Ovulatory);
             Messages.Message($"{p} is now ovulatory", p, MessageTypeDefOf.NeutralEvent, false);
         }
 
@@ -26,7 +26,7 @@ namespace RJW_Menstruation
         private static void SetLuteal(Pawn p)
         {
             foreach (HediffComp_Menstruation comp in p.GetMenstruationComps())
-                comp.curStage = HediffComp_Menstruation.Stage.Luteal;
+                comp.GoNextStage(HediffComp_Menstruation.Stage.Luteal);
             Messages.Message($"{p} is now luteal", p, MessageTypeDefOf.NeutralEvent, false);
         }
 
@@ -34,7 +34,7 @@ namespace RJW_Menstruation
         private static void SetBleeding(Pawn p)
         {
             foreach (HediffComp_Menstruation comp in p.GetMenstruationComps())
-                comp.curStage = HediffComp_Menstruation.Stage.Bleeding;
+                comp.GoNextStage(HediffComp_Menstruation.Stage.Bleeding);
             Messages.Message($"{p} is now bleeding", p, MessageTypeDefOf.NeutralEvent, false);
         }
         /*

1.4/source/RJW_Menstruation/RJW_Menstruation/DrugOutcomeDoers.cs

@@ -16,7 +16,7 @@ namespace RJW_Menstruation
                 )
                 {
                     comp.SetEstrus();
-                    comp.curStage = HediffComp_Menstruation.Stage.Ovulatory;
+                    comp.GoNextStage(HediffComp_Menstruation.Stage.Ovulatory);
                     comp.ovarypower--;
                 }
         }
@@ -32,7 +32,7 @@ namespace RJW_Menstruation
                     )
                 {
                     comp.SetEstrus();
-                    comp.curStage = HediffComp_Menstruation.Stage.Ovulatory;
+                    comp.GoNextStage(HediffComp_Menstruation.Stage.Ovulatory);
                     comp.eggstack += ingested.stackCount - 1;
                 }
         }

1.4/source/RJW_Menstruation/RJW_Menstruation/HediffComps/HediffComp_Menstruation.cs

@@ -203,7 +203,7 @@ namespace RJW_Menstruation
             get
             {
                 if (!Configurations.EnableMenopause || Props.infertile) return Mathf.Max(1.0f, ovarypower / OvaryPowerThreshold);
-                else return ovarypower / OvaryPowerThreshold;
+                else return (float)ovarypower / OvaryPowerThreshold;
             }
         }
 
@@ -280,16 +280,63 @@ namespace RJW_Menstruation
                 return 1.0f;
             }
         }
-        //effect on implant chance
-        public float ImplantFactor
+
+        // I hate doing this, but it's the least bad option
+        public bool calculatingOvulationChance = false;
+
+        public float OvulationChance
+        {
+            get
+            {
+                float ovulationChance = 1.0f;
+                if (EggHealth <= 0.0f) return 0.0f;
+                if (EggHealth < 1.0f / 3.0f) ovulationChance = 0.8f;
+                if (ModsConfig.BiotechActive && xxx.is_human(Pawn))
+                {
+                    if (Pawn.SterileGenes()) return 0.0f;
+                    // Replicate how rjw.PawnCapacityWorker_Fertility.CalculateCapacityLevel does it, but without the age factor
+                    if (!Pawn.RaceHasFertility()) return 0.0f;
+                    if (AndroidsCompatibility.IsAndroid(Pawn) && parent.def != Genital_Helper.archotech_vagina) return 0.0f;
+                    foreach (var part in StatDefOf.Fertility.parts)
+                    {
+                        if(part is StatPart_FertilityByGenderAge fertilityByAge)
+                        {
+                            float factor = 1.0f;
+                            fertilityByAge.TransformValue(StatRequest.For(Pawn), ref factor);
+                            if (factor <= 0.0f) return 0.0f;    // Too young or too old
+                        }
+                        else part.TransformValue(StatRequest.For(Pawn), ref ovulationChance);
+                    }
+                    try
+                    {
+                        calculatingOvulationChance = true;
+                        ovulationChance *= PawnCapacityUtility.CalculateCapacityLevel(Pawn.health.hediffSet, xxx.reproduction);
+                    }
+                    finally { calculatingOvulationChance = false; }
+                }
+                return ovulationChance;
+            }
+        }
+        public float ImplantChance
         {
             get
             {
                 float factor = 1.0f;
                 if (Pawn.Has(Quirk.Breeder)) factor = 10.0f;
-                return Pawn.health.capacities.GetLevel(xxx.reproduction) * Props.baseImplantationChanceFactor * FertilityModifier * factor;
+
+                if (ModsConfig.BiotechActive && xxx.is_human(Pawn))
+                {
+                    // Implant factor will be based solely on pawn age, plus any rollover from ovulation chance
+                    StatPart_FertilityByGenderAge fertilityStatPart = StatDefOf.Fertility.GetStatPart<StatPart_FertilityByGenderAge>();
+                    fertilityStatPart?.TransformValue(StatRequest.For(Pawn), ref factor);
+                    float ovulationOverflow = OvulationChance;
+                    if (ovulationOverflow > 1.0f) factor *= ovulationOverflow;                    
+                    return Props.baseImplantationChanceFactor * FertilityModifier * factor;
+                }
+                else return Pawn.health.capacities.GetLevel(xxx.reproduction) * Props.baseImplantationChanceFactor * FertilityModifier * factor;
             }
         }
+
         public IEnumerable<string> GetCumsInfo
         {
             get
@@ -345,13 +392,13 @@ namespace RJW_Menstruation
                 switch (CurrentVisibleStage)
                 {
                     case Stage.Follicular:
-                        return Translations.Stage_Follicular + (EggHealth < 1f ? Translations.Stage_Climacteric : "");
+                        return Translations.Stage_Follicular + (EggHealth < 1f ? " " + Translations.Stage_Climacteric : "");
                     case Stage.Ovulatory:
-                        return Translations.Stage_Ovulatory + (EggHealth < 1f ? Translations.Stage_Climacteric : "");
+                        return Translations.Stage_Ovulatory + (EggHealth < 1f ? " " + Translations.Stage_Climacteric : "");
                     case Stage.Luteal:
-                        return Translations.Stage_Luteal + (EggHealth < 1f ? Translations.Stage_Climacteric : "");
+                        return Translations.Stage_Luteal + (EggHealth < 1f ? " " + Translations.Stage_Climacteric : "");
                     case Stage.Bleeding:
-                        return Translations.Stage_Bleeding + (EggHealth < 1f ? Translations.Stage_Climacteric : "");
+                        return Translations.Stage_Bleeding + (EggHealth < 1f ? " " + Translations.Stage_Climacteric : "");
                     case Stage.Pregnant:
                         return Translations.Stage_Pregnant;
                     case Stage.Recover:
@@ -375,13 +422,13 @@ namespace RJW_Menstruation
                 switch (CurrentVisibleStage)
                 {
                     case Stage.Follicular:
-                        return Translations.Stage_Follicular_Desc + (EggHealth < 1f ? Translations.Stage_Climacteric_Desc : "");
+                        return Translations.Stage_Follicular_Desc + (EggHealth < 1f ? " " + Translations.Stage_Climacteric_Desc : "");
                     case Stage.Ovulatory:
-                        return Translations.Stage_Ovulatory_Desc + (EggHealth < 1f ? Translations.Stage_Climacteric_Desc : "");
+                        return Translations.Stage_Ovulatory_Desc + (EggHealth < 1f ? " " + Translations.Stage_Climacteric_Desc : "");
                     case Stage.Luteal:
-                        return Translations.Stage_Luteal_Desc + (EggHealth < 1f ? Translations.Stage_Climacteric_Desc : "");
+                        return Translations.Stage_Luteal_Desc + (EggHealth < 1f ? " " + Translations.Stage_Climacteric_Desc : "");
                     case Stage.Bleeding:
-                        return Translations.Stage_Bleeding_Desc + (EggHealth < 1f ? Translations.Stage_Climacteric_Desc : "");
+                        return Translations.Stage_Bleeding_Desc + (EggHealth < 1f ? " " + Translations.Stage_Climacteric_Desc : "");
                     case Stage.Pregnant:
                         return Translations.Stage_Pregnant_Desc;
                     case Stage.Recover:
@@ -678,7 +725,7 @@ namespace RJW_Menstruation
 
                 BeforeSimulator();
                 
-                if (pregnancy == null && (Pawn.health.capacities.GetLevel(xxx.reproduction) <= 0 || EggHealth <= 0 || Pawn.SterileGenes())) GoNextStage(Stage.Infertile);
+                if (pregnancy == null && (ImplantChance <= 0.0f || EggHealth <= 0)) GoNextStage(Stage.Infertile);
                 switch (curStage)
                 {
                     case Stage.Follicular:
@@ -1111,9 +1158,12 @@ namespace RJW_Menstruation
 
             if (cycleSpeed < 0f) cycleSpeed = Utility.RandGaussianLike(0.8f, 1.2f);
             if (cycleVariability < 0f) cycleVariability = MenstruationUtility.RandomVariabilityPercent();
+            
+            InitOvary();
+
             if (currentIntervalHours < 0)
             {
-                if (Pawn.health.capacities.GetLevel(xxx.reproduction) <= 0 || Pawn.SterileGenes()) curStage = Stage.Infertile;
+                if (ImplantChance <= 0.0f || EggHealth <= 0) curStage = Stage.Infertile;
                 else if (!IsBreedingSeason()) curStage = Stage.Anestrus;
                 else curStage = RandomStage();
                 if (curStage == Stage.Follicular)
@@ -1128,8 +1178,6 @@ namespace RJW_Menstruation
             if (cums == null) cums = new List<Cum>();
             if (eggs == null) eggs = new List<Egg>();
 
-
-            InitOvary();
             TakeLoosePregnancy();
 
             //Log.Message(Pawn.Label + " - Initialized menstruation comp");
@@ -1283,7 +1331,7 @@ namespace RJW_Menstruation
 
             float totalFertPower = eligibleCum.Sum(cum => cum.FertVolume);
             
-            if (Rand.Range(0.0f, 1.0f) > 1.0f - Mathf.Pow(1.0f - Configurations.FertilizeChance, totalFertPower * Props.basefertilizationChanceFactor))
+            if (Rand.Chance(Mathf.Pow(1.0f - Configurations.FertilizeChance, totalFertPower * Props.basefertilizationChanceFactor)))
                 return null;
 
             Pawn.records.AddTo(VariousDefOf.AmountofFertilizedEggs, 1);
@@ -1324,7 +1372,7 @@ namespace RJW_Menstruation
                     deadeggs.Add(egg);
                     continue;
                 }
-                else if (Rand.Range(0.0f, 1.0f) <= Configurations.ImplantationChance * ImplantFactor * InterspeciesImplantFactor(egg.fertilizer))
+                else if (Rand.Chance(Configurations.ImplantationChance * ImplantChance * InterspeciesImplantFactor(egg.fertilizer)))
                 {
                     if (Configurations.Debug) Log.Message($"Implanting fertilized egg of {Pawn} into {parent}, father {egg.fertilizer}");
                     if (pregnancy != null)
@@ -1527,7 +1575,7 @@ namespace RJW_Menstruation
             }
             else if (curStageHrs >= currentIntervalHours)
             {
-                GoOvulatoryStage();
+                GoNextStage(Stage.Ovulatory);
             }
             else
             {
@@ -1562,8 +1610,10 @@ namespace RJW_Menstruation
             eggnum *= ovulationFactor;
             ovulated = (int)eggnum + eggstack;
 
+            float ovulationChance = OvulationChance;
             for (int i = 0; i < ovulated; i++)
-                eggs.Add(new Egg((int)(EggLifespanHours / CycleFactor)));
+                if (i < eggstack || Rand.Chance(ovulationChance))   // eggstack comes from drugs and are guaranteed ovulated
+                    eggs.Add(new Egg((int)(EggLifespanHours / CycleFactor)));
             ovarypower -= ovulated;
 
             eggstack = 0;
@@ -1584,7 +1634,7 @@ namespace RJW_Menstruation
             if (curStageHrs >= currentIntervalHours)
             {
                 eggs.Clear();
-                if (EggHealth < 1f / 4f || (EggHealth < 1f / 3f && Rand.Range(0.0f, 1.0f) < 0.3f)) //skips bleeding
+                if (EggHealth < 1f / 4f || (EggHealth < 1f / 3f && Rand.Chance(0.3f))) //skips bleeding
                 {
                     GoNextStage(Stage.Follicular);
                 }
@@ -1663,7 +1713,7 @@ namespace RJW_Menstruation
         {
             if (curStageHrs >= currentIntervalHours)
             {
-                if (Pawn.health.capacities.GetLevel(xxx.reproduction) == 0 || EggHealth <= 0 || Pawn.SterileGenes())
+                if (ImplantChance <= 0.0f || EggHealth <= 0)
                 {
                     GoNextStage(Stage.Infertile);
                 }
@@ -1685,7 +1735,7 @@ namespace RJW_Menstruation
 
         protected virtual void InfertileAction()
         {
-            if (Pawn.health.capacities.GetLevel(xxx.reproduction) <= 0 || EggHealth <= 0 || Pawn.SterileGenes())
+            if (ImplantChance <= 0 || EggHealth <= 0)
             {
                 StayCurrentStageConst(Stage.Infertile);
             }
@@ -1772,7 +1822,7 @@ namespace RJW_Menstruation
             TaleRecorder.RecordTale(VariousDefOf.TaleCameInside, new object[] { cummer, Pawn });
         }
 
-        protected void GoNextStage(Stage nextstage, bool calculateHours = true)
+        public void GoNextStage(Stage nextstage, bool calculateHours = true)
         {
             curStageHrs = 0;
             if (calculateHours) currentIntervalHours = PeriodRandomizer(nextstage);
@@ -1781,12 +1831,7 @@ namespace RJW_Menstruation
 
         protected virtual void GoOvulatoryStage()
         {
-            if (EggHealth < 1.0f / 3.0f && Rand.Range(0.0f, 1.0f) < 0.2f)   // Skip ovulation if deep into climacteric
-            {
-                estrusflag = false;
-                GoNextStage(Stage.Luteal);
-            }
-            else GoNextStage(Stage.Ovulatory);
+            GoNextStage(Stage.Ovulatory);
         }
 
         //stage can be interrupted in other reasons

1.4/source/RJW_Menstruation/RJW_Menstruation/HediffComps/MenstruationUtility.cs

@@ -1,4 +1,5 @@
 using RimWorld;
+using RimWorld.Planet;
 using rjw;
 using System;
 using System.Collections.Generic;
@@ -218,6 +219,8 @@ namespace RJW_Menstruation
         }
         public static Texture2D GetEggIcon(this HediffComp_Menstruation comp, bool includeOvary)
         {
+            const float ovaryChanceToShow_01 = 0.4f;
+            const float ovaryChanceToShow_02 = 1.0f;
             switch (comp.CurrentVisibleStage)
             {
                 case HediffComp_Menstruation.Stage.Follicular:
@@ -228,15 +231,20 @@ namespace RJW_Menstruation
                             job.Sexprops != null &&
                             !job.Sexprops.usedCondom &&
                             (job.Sexprops.sexType == xxx.rjwSextype.Vaginal || job.Sexprops.sexType == xxx.rjwSextype.DoublePenetration))
-                            return ContentFinder<Texture2D>.Get("Ovaries/Ovary_01", true);
+                            return ContentFinder<Texture2D>.Get((comp.OvulationChance >= ovaryChanceToShow_01) ? "Ovaries/Ovary_01" : "Ovaries_Ovary_00", true);
                         else break;
                     }
                     if (comp.curStageHrs > comp.CurStageIntervalHours - 30)   // Approximate time for ovulation to occur
-                        return ContentFinder<Texture2D>.Get("Ovaries/Ovary_01", true);
+                        return ContentFinder<Texture2D>.Get((comp.OvulationChance >= ovaryChanceToShow_01) ? "Ovaries/Ovary_01" : "Ovaries_Ovary_00", true);
                     else break;
                 case HediffComp_Menstruation.Stage.Ovulatory:
                     if (!includeOvary) break;
-                    return ContentFinder<Texture2D>.Get("Ovaries/Ovary_02", true);
+                    if (comp.OvulationChance >= ovaryChanceToShow_02)
+                        return ContentFinder<Texture2D>.Get("Ovaries/Ovary_02", true);
+                    else if (comp.OvulationChance >= ovaryChanceToShow_01)
+                        return ContentFinder<Texture2D>.Get("Ovaries/Ovary_01", true);
+                    else
+                        return ContentFinder<Texture2D>.Get("Ovaries/Ovary_00", true);
                 case HediffComp_Menstruation.Stage.Luteal:
                     if (!comp.IsEggExist) break;
                     int fertstage = comp.IsFertilized;

1.4/source/RJW_Menstruation/RJW_Menstruation/Patch/RJW_Patch.cs

@@ -129,11 +129,11 @@ namespace RJW_Menstruation
             else if (pawn.GetMenstruationComps().Any()) return false;
             else return pawn.IsPregnant();
         }
-        private static readonly MethodInfo IsPregnant = AccessTools.Method(typeof(PawnExtensions), nameof(PawnExtensions.IsPregnant), new System.Type[] {typeof(Pawn), typeof(bool)});
+        private static readonly MethodInfo IsPregnant = AccessTools.Method(typeof(PawnExtensions), nameof(PawnExtensions.IsPregnant), new System.Type[] { typeof(Pawn), typeof(bool) });
         public static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> instructions)
         {
             if (IsPregnant == null || IsPregnant.ReturnType != typeof(bool)) throw new System.InvalidOperationException("IsPregnant not found");
-            foreach(CodeInstruction instruction in instructions)
+            foreach (CodeInstruction instruction in instructions)
             {
                 if (instruction.Calls(IsPregnant))
                     yield return CodeInstruction.Call(typeof(CanImpregnate_Patch), nameof(PregnancyBlocksImpregnation));
@@ -371,4 +371,27 @@ namespace RJW_Menstruation
 
         }
     }
+
+    [HarmonyPatch(typeof(PawnCapacityWorker_Fertility), nameof(PawnCapacityWorker_Fertility.CalculateCapacityLevel))]
+    public static class PawnCapacityWorker_Fertility_Patch
+    {
+        private static float GetFertilityStatOrOne(Thing thing, StatDef stat, bool applyPostProcess, int cacheStaleAfterTicks)
+        {
+            Pawn pawn = (Pawn)thing;
+            if (pawn.GetMenstruationComps().Any(comp => comp.calculatingOvulationChance))
+                return 1.0f;
+            else return thing.GetStatValue(stat, applyPostProcess, cacheStaleAfterTicks);
+        }
+        private static readonly MethodInfo GetStatValue = AccessTools.Method(typeof(StatExtension), "GetStatValue", new System.Type[] { typeof(Thing), typeof(StatDef), typeof(bool), typeof(int) });
+        public static IEnumerable<CodeInstruction> Transpiler(IEnumerable<CodeInstruction> instructions)
+        {
+            if (GetStatValue == null || GetStatValue.ReturnType != typeof(float)) throw new System.InvalidOperationException("GetStatValue not found");
+            foreach (CodeInstruction instruction in instructions)
+            {
+                if (instruction.Calls(GetStatValue))
+                    yield return CodeInstruction.Call(typeof(PawnCapacityWorker_Fertility_Patch), nameof(GetFertilityStatOrOne));
+                else yield return instruction;
+            }
+        }
+    }
 }

1.4/source/RJW_Menstruation/RJW_Menstruation/Translations.cs

@@ -134,6 +134,8 @@ namespace RJW_Menstruation
 
         public static readonly string EstimatedCumLifespan = "EstimatedCumLifespan".Translate();
         public static readonly string EstimatedEggLifespan = "EstimatedEggLifespan".Translate();
+        public static string OvulationChanceLabel(string value) => "OvulationChanceLabel".Translate(value);
+        public static readonly string OvulationChanceDesc = "OvulationChanceDesc".Translate();
         public static string FertilityDesc(string value) => "FertilityDesc".Translate(value);
 
         public static readonly string Gizmo_GatherCum = "Gizmo_GatherCum".Translate();

1.4/source/RJW_Menstruation/RJW_Menstruation/UI/Dialog_WombStatus.cs

@@ -450,11 +450,18 @@ namespace RJW_Menstruation
 
             statvalue = pawn.records.GetValue(xxx.CountOfBirthEgg);
             FillableBarLabeled(lineRect, "  " + xxx.CountOfBirthEgg.LabelCap.CapitalizeFirst() + " " + statvalue, statvalue / 100, TextureCache.RecoverTexture, Texture2D.blackTexture, xxx.CountOfBirthEgg.description);
-            lineRect.y += height * 4;
+            lineRect.y += height * 3;
 
-            statvalue = Configurations.ImplantationChance * comp.ImplantFactor;
+            if (ModsConfig.BiotechActive)
+            {
+                statvalue = comp.OvulationChance;
+                FillableBarLabeled(lineRect, "  " + Translations.OvulationChanceLabel(statvalue.ToStringPercent()), statvalue, TextureCache.LutealTexture, Texture2D.blackTexture, Translations.OvulationChanceDesc);
+            }
+            lineRect.y += height;
+
+            statvalue = Configurations.ImplantationChance * comp.ImplantChance;
             float fertchance = comp.GetFertilityChance();
-            FillableBarLabeled(lineRect, "  " + xxx.reproduction.LabelCap.CapitalizeFirst() + " " + statvalue.ToStringPercent(), statvalue, TextureCache.LutealTexture, Texture2D.blackTexture, Translations.FertilityDesc(String.Format("{0:0.##}", fertchance * 100)));
+            FillableBarLabeled(lineRect, "  " + xxx.reproduction.LabelCap.CapitalizeFirst() + " " + statvalue.ToStringPercent(), statvalue, TextureCache.LutealTexture, Texture2D.blackTexture, Translations.FertilityDesc(string.Format("{0:0.##}", fertchance * 100)));
             Rect overayRect = new Rect(lineRect.x, lineRect.y, lineRect.width * Math.Min(1.0f, fertchance), lineRect.height);
             GUI.DrawTexture(overayRect, TextureCache.FertChanceTex);
             lineRect.y += height;

About/Manifest.xml

@@ -1,7 +1,7 @@
 <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
 <Manifest>
 	<identifier>RJW Menstruation</identifier>
-	<version>1.0.8.7</version>
+	<version>1.0.8.8</version>
 	<dependencies>
 	</dependencies>
 	<incompatibleWith />

changelogs.txt

@@ -1,3 +1,11 @@
+Version 1.0.8.8
+ - Fix pawns skipping straight to menopause instead of going through climacteric stages.
+ - Rework ovulation mechanics. A pawn's implantation chance is now dependent on their age.
+ - All other fertility-altering effects instead change the odds of ovulation occuring, rolled per-egg. This chance appears in the womb dialog.
+ - If the chance of ovulation goes above 100%, the implantation chance is increased.
+ - Drugs that increase the number of eggs ovulated are still guaranteed to work.
+ - If Biotech is disabled or not installed, the old fertility system will apply instead.
+
 Version 1.0.8.7
  - Fix missing texture when using Milkable Colonists.
  - Fix estrus and egg lifespan lasting far longer than intended.