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fix: fixes party level calculation for pf2e system
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@valentine195
valentine195 committed Jan 11, 2024
1 parent 1e603a0 commit 005f7ec
Showing 1 changed file with 112 additions and 96 deletions.
208 changes: 112 additions & 96 deletions src/utils/rpg-system/pf2e.ts
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Original file line number Diff line number Diff line change
@@ -1,7 +1,7 @@
import { RpgSystem } from './rpgSystem'
import { crToString, getFromCreatureOrBestiary } from '..'
import type { DifficultyLevel, GenericCreature, DifficultyThreshold } from '.'
import type InitiativeTracker from '../../main'
import { RpgSystem } from "./rpgSystem";
import { crToString, getFromCreatureOrBestiary } from "..";
import type { DifficultyLevel, GenericCreature, DifficultyThreshold } from ".";
import type InitiativeTracker from "../../main";

// level without proficiency variant
// const xpVariantCreatureDifferences = new Map([
Expand All @@ -23,113 +23,129 @@ import type InitiativeTracker from '../../main'
// ]);

const XP_CREATURE_DIFFERENCES: Record<string, number> = {
'-4': 10,
'-3': 15,
'-2': 20,
'-1': 30,
'0': 40,
'1': 60,
'2': 80,
'3': 120,
'4': 160,
}
"-4": 10,
"-3": 15,
"-2": 20,
"-1": 30,
"0": 40,
"1": 60,
"2": 80,
"3": 120,
"4": 160
};

const XP_SIMPLE_HAZARD_DIFFERENCES: Record<string, number> = {
'-4': 2,
'-3': 3,
'-2': 4,
'-1': 6,
'0': 8,
'1': 12,
'2': 16,
'3': 24,
'4': 32,
}
"-4": 2,
"-3": 3,
"-2": 4,
"-1": 6,
"0": 8,
"1": 12,
"2": 16,
"3": 24,
"4": 32
};

const PF2E_DND5E_DIFFICULTY_MAPPING: Record<string, string> = {
'trivial': 'trivial',
'low': 'easy',
'moderate': 'medium',
'severe': 'hard',
'extreme': 'deadly'
}
trivial: "trivial",
low: "easy",
moderate: "medium",
severe: "hard",
extreme: "deadly"
};

export class Pathfinder2eRpgSystem extends RpgSystem {
plugin: InitiativeTracker
export class Pathfinder2eRpgSystem extends RpgSystem {
plugin: InitiativeTracker;

override systemDifficulties: [string, string, ...string[]] = [
"Trivial",
"Low",
"Moderate",
"Severe",
"Extreme"
]
override systemDifficulties: [string, string, ...string[]] = [
"Trivial",
"Low",
"Moderate",
"Severe",
"Extreme"
];

constructor(plugin: InitiativeTracker) {
super()
this.plugin = plugin
this.displayName = 'Pathfinder 2e'
}
constructor(plugin: InitiativeTracker) {
super();
this.plugin = plugin;
this.displayName = "Pathfinder 2e";
}

getCreatureDifficulty(
creature: GenericCreature,
playerLevels?: number[]
): number {
const lvl = getFromCreatureOrBestiary(
this.plugin,
creature,
(c) => c?.level
)?.toString().split(' ').slice(-1)
if (lvl == null || lvl == undefined) return 0
const partyLvl = playerLevels?.length ?? 0 > 0 ? playerLevels.reduce((a, b) => a + b) / playerLevels.length : 0
getCreatureDifficulty(
creature: GenericCreature,
playerLevels?: number[]
): number {
const lvl = getFromCreatureOrBestiary(
this.plugin,
creature,
(c) => c?.level
)
?.toString()
.split(" ")
.slice(-1);
if (lvl == null || lvl == undefined) return 0;
const partyLvl = Math.round(
playerLevels?.length ?? 0 > 0
? playerLevels.reduce((a, b) => a + b) / playerLevels.length
: 0
);

const creature_differences = String(
lvl - partyLvl
)
const creature_differences = String(lvl - partyLvl);

return XP_CREATURE_DIFFERENCES[creature_differences] ?? 0
}
return XP_CREATURE_DIFFERENCES[creature_differences] ?? 0;
}

getDifficultyThresholds(playerLevels: number[]): DifficultyThreshold[] {
const budget = playerLevels.length * 20
const encounterBudget: Record<string, number> = {
trivial: Math.floor(budget * 0.5),
low: Math.floor(budget * 0.75),
moderate: budget,
severe: Math.floor(budget * 1.5),
extreme: Math.floor(budget * 2),
}
return Object.entries(encounterBudget).map(([name, value]) => ({
displayName: name.charAt(0).toUpperCase() + name.slice(1),
minValue: value
})).sort((a, b) => a.minValue - b.minValue)
}
getDifficultyThresholds(playerLevels: number[]): DifficultyThreshold[] {
const budget = playerLevels.length * 20;
const encounterBudget: Record<string, number> = {
trivial: Math.floor(budget * 0.5),
low: Math.floor(budget * 0.75),
moderate: budget,
severe: Math.floor(budget * 1.5),
extreme: Math.floor(budget * 2)
};
return Object.entries(encounterBudget)
.map(([name, value]) => ({
displayName: name.charAt(0).toUpperCase() + name.slice(1),
minValue: value
}))
.sort((a, b) => a.minValue - b.minValue);
}

getEncounterDifficulty(
creatures: Map<GenericCreature, number>,
playerLevels: number[]
): DifficultyLevel {
const creatureXp = [...creatures].reduce(
(acc, [creature, count]) =>
acc + this.getCreatureDifficulty(creature, playerLevels) * count,
0
)
getEncounterDifficulty(
creatures: Map<GenericCreature, number>,
playerLevels: number[]
): DifficultyLevel {
const creatureXp = [...creatures].reduce(
(acc, [creature, count]) =>
acc +
this.getCreatureDifficulty(creature, playerLevels) * count,
0
);

const thresholds = this.getDifficultyThresholds(playerLevels)
const displayName = thresholds.find(threshold => creatureXp <= threshold.minValue)?.displayName ?? "Trivial"
const thresholdSummary = thresholds.map((threshold) => `${threshold.displayName}: ${threshold.minValue}`).join('\n')
const summary = `Encounter is ${displayName}
const thresholds = this.getDifficultyThresholds(playerLevels);
const displayName =
thresholds.find((threshold) => creatureXp <= threshold.minValue)
?.displayName ?? "Trivial";
const thresholdSummary = thresholds
.map(
(threshold) => `${threshold.displayName}: ${threshold.minValue}`
)
.join("\n");
const summary = `Encounter is ${displayName}
Total XP: ${creatureXp}
Threshold
${thresholdSummary}`;

return {
displayName,
summary,
cssClass: PF2E_DND5E_DIFFICULTY_MAPPING[displayName.toLowerCase()] ?? "trivial",
value: creatureXp,
title: "Total XP",
intermediateValues: [{ label: "Total XP", value: creatureXp }],
};
}
return {
displayName,
summary,
cssClass:
PF2E_DND5E_DIFFICULTY_MAPPING[displayName.toLowerCase()] ??
"trivial",
value: creatureXp,
title: "Total XP",
intermediateValues: [{ label: "Total XP", value: creatureXp }]
};
}
}

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