Allow damage formulas to be explained with just the user's info

src/game/combat.ts

@@ -161,6 +161,7 @@ export class Damage {
 export interface DamageFormula {
   calc (user: Creature, target: Creature): Damage;
   describe (user: Creature, target: Creature): LogEntry;
+  explain (user: Creature): LogEntry;
 }
 
 /**
@@ -176,6 +177,10 @@ export class ConstantDamageFormula implements DamageFormula {
   }
 
   describe (user: Creature, target: Creature): LogEntry {
+    return this.explain(user)
+  }
+
+  explain (user: Creature): LogEntry {
     return new LogLine('Deal ', this.damage.renderShort(), ' damage')
   }
 }
@@ -193,6 +198,10 @@ export class UniformRandomDamageFormula implements DamageFormula {
   }
 
   describe (user: Creature, target: Creature): LogEntry {
+    return this.explain(user)
+  }
+
+  explain (user: Creature): LogEntry {
     return new LogLine('Deal between ', this.damage.scale(1 - this.variance).renderShort(), ' and ', this.damage.scale(1 + this.variance).renderShort(), ' damage.')
   }
 }

src/game/creatures/withers.ts

@@ -1,5 +1,5 @@
 import { Creature, POV } from '../entity'
-import { Damage, DamageType, ConstantDamageFormula, Vigor, Side, GroupAction, CombatTest, Stat, Action } from '../combat'
+import { Damage, DamageType, ConstantDamageFormula, Vigor, Side, GroupAction, CombatTest, Stat, Action, DamageFormula, UniformRandomDamageFormula } from '../combat'
 import { ImproperNoun, POVPair, ProperNoun, FemalePronouns, RandomWord, Adjective, POVPairArgs, POVSoloArgs, Verb } from '../language'
 import { LogLine, LogLines, LogEntry, Newline } from '../interface'
 import { VoreType, Stomach, VoreContainer, Vore, NormalContainer, Container } from '../vore'
@@ -63,14 +63,15 @@ class ChewAction extends GroupAction {
   ])
 
   describeGroup (user: Creature, targets: Creature[]): LogEntry {
-    return new LogLine('CRUNCH')
+    return new LogLine('Crunch \'em all. ', this.damage.explain(user))
   }
 
   execute (user: Creature, target: Creature): LogEntry {
+    const damage = this.damage.calc(user, target)
     const results: Array<LogEntry> = []
-    results.push(this.lines.run(user, target, { damage: this.damage }))
+    results.push(this.lines.run(user, target, { damage: damage }))
     results.push(new LogLine(' '))
-    results.push(target.takeDamage(this.damage))
+    results.push(target.takeDamage(damage))
 
     if (target.vigors.Health <= 0) {
       if (this.killAction.allowed(user, target)) {
@@ -86,7 +87,7 @@ class ChewAction extends GroupAction {
     return new LogLine('Do the crunch')
   }
 
-  constructor (private damage: Damage, container: Container, private killAction: Action) {
+  constructor (private damage: DamageFormula, container: Container, private killAction: Action) {
     super('Chew', 'Give them the big chew', [
       new ContainerCondition(container)
     ])
@@ -206,9 +207,9 @@ export class Withers extends Creature {
 
     this.otherContainers.push(grapple)
 
-    this.actions.push(new ChewAction(new Damage(
+    this.actions.push(new ChewAction(new UniformRandomDamageFormula(new Damage(
       { target: Vigor.Health, type: DamageType.Crush, amount: 10000 }
-    ),
+    ), 0.5),
     grapple,
     new TransferAction(grapple, stomach)))
   }