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https://github.com/Foundryborne/daggerheart.git
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Use a new algorithm using the median average deviation
This commit is contained in:
Carlos Fernandez
parent
81bdc7901d
commit
50ee1ccd5b
3 changed files with 134 additions and 74 deletions
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@ -507,14 +507,11 @@ export const subclassFeatureLabels = {
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*/
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/**
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* @type {Record<string, Record<2 | 3 | 4, TierData> & Record<1, { damage: number[] }>}
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* @type {Record<string, Record<2 | 3 | 4, TierData>}
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* Scaling data used to change an adversary's tier. Each rank is applied incrementally.
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*/
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export const adversaryScalingData = {
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bruiser: {
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1: {
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damage: [8, 11]
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},
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2: {
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difficulty: 2,
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majorThreshold: 5,
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@ -522,7 +519,6 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 2,
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attack: 2,
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damage: [12, 16]
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},
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3: {
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difficulty: 2,
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@ -531,7 +527,6 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 0,
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attack: 2,
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damage: [18, 22]
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},
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4: {
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difficulty: 2,
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@ -540,13 +535,9 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 0,
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attack: 2,
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damage: [30, 45]
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}
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},
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horde: {
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1: {
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damage: [5, 8]
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},
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2: {
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difficulty: 2,
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majorThreshold: 5,
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@ -554,7 +545,6 @@ export const adversaryScalingData = {
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hp: 2,
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stress: 0,
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attack: 0,
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damage: [9, 13]
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},
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3: {
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difficulty: 2,
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@ -563,7 +553,6 @@ export const adversaryScalingData = {
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hp: 0,
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stress: 1,
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attack: 1,
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damage: [14, 19]
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},
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4: {
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difficulty: 2,
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@ -572,13 +561,9 @@ export const adversaryScalingData = {
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hp: 2,
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stress: 0,
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attack: 0,
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damage: [20, 30]
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}
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},
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leader: {
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1: {
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damage: [6, 9]
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},
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2: {
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difficulty: 2,
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majorThreshold: 6,
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@ -586,7 +571,6 @@ export const adversaryScalingData = {
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hp: 0,
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stress: 0,
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attack: 1,
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damage: [12, 15]
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},
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3: {
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difficulty: 2,
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@ -595,7 +579,6 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 0,
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attack: 2,
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damage: [15, 18]
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},
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4: {
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difficulty: 2,
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@ -604,13 +587,9 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 1,
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attack: 3,
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damage: [25, 35]
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}
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},
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minion: {
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1: {
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damage: [1, 3]
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},
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2: {
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difficulty: 2,
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majorThreshold: 0,
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@ -618,7 +597,6 @@ export const adversaryScalingData = {
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hp: 0,
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stress: 0,
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attack: 1,
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damage: [2, 4]
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},
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3: {
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difficulty: 2,
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@ -627,7 +605,6 @@ export const adversaryScalingData = {
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hp: 0,
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stress: 1,
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attack: 1,
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damage: [5, 8]
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},
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4: {
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difficulty: 2,
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@ -636,13 +613,9 @@ export const adversaryScalingData = {
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hp: 0,
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stress: 0,
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attack: 1,
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damage: [10, 12]
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}
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},
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ranged: {
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1: {
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damage: [6, 9]
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},
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2: {
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difficulty: 2,
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majorThreshold: 3,
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@ -650,7 +623,6 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 0,
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attack: 1,
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damage: [12, 16]
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},
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3: {
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difficulty: 2,
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@ -659,7 +631,6 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 1,
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attack: 2,
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damage: [15, 18]
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},
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4: {
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difficulty: 2,
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@ -668,13 +639,9 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 1,
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attack: 1,
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damage: [25, 35]
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}
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},
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skulk: {
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1: {
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damage: [5, 8]
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},
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2: {
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difficulty: 2,
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majorThreshold: 3,
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@ -682,7 +649,6 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 1,
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attack: 1,
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damage: [9, 13]
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},
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3: {
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difficulty: 2,
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@ -691,7 +657,6 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 1,
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attack: 1,
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damage: [14, 18]
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},
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4: {
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difficulty: 2,
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@ -700,13 +665,9 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 1,
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attack: 1,
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damage: [20, 35]
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}
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},
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solo: {
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1: {
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damage: [8, 11]
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},
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2: {
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difficulty: 2,
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majorThreshold: 5,
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@ -714,7 +675,6 @@ export const adversaryScalingData = {
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hp: 0,
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stress: 1,
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attack: 2,
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damage: [15, 20]
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},
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3: {
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difficulty: 2,
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@ -723,7 +683,6 @@ export const adversaryScalingData = {
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hp: 2,
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stress: 1,
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attack: 2,
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damage: [20, 30]
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},
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4: {
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difficulty: 2,
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@ -732,13 +691,9 @@ export const adversaryScalingData = {
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hp: 0,
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stress: 1,
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attack: 3,
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damage: [30, 45]
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}
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},
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standard: {
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1: {
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damage: [4, 6]
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},
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2: {
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difficulty: 2,
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majorThreshold: 3,
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@ -746,7 +701,6 @@ export const adversaryScalingData = {
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hp: 0,
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stress: 0,
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attack: 1,
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damage: [8, 12]
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},
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3: {
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difficulty: 2,
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@ -755,7 +709,6 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 1,
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attack: 1,
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damage: [12, 17]
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},
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4: {
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difficulty: 2,
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@ -764,13 +717,9 @@ export const adversaryScalingData = {
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hp: 0,
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stress: 1,
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attack: 1,
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damage: [17, 20]
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}
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},
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support: {
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1: {
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damage: [3, 5]
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},
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2: {
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difficulty: 2,
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majorThreshold: 3,
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@ -778,7 +727,6 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 1,
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attack: 1,
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damage: [5, 12]
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},
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3: {
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difficulty: 2,
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@ -787,7 +735,6 @@ export const adversaryScalingData = {
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hp: 0,
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stress: 0,
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attack: 1,
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damage: [13, 16]
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},
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4: {
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difficulty: 2,
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@ -796,7 +743,22 @@ export const adversaryScalingData = {
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hp: 1,
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stress: 1,
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attack: 1,
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damage: [18, 25]
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}
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}
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};
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/** Scaling data used for an adversary's damage */
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export const adversaryExpectedDamage = {
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basic: {
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1: { medianDamage: 7.5, damageDeviation: 1 },
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2: { medianDamage: 13, damageDeviation: 2 },
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3: { medianDamage: 15.5, damageDeviation: 1.5 },
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4: { medianDamage: 27, damageDeviation: 3 }
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},
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minion: {
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1: { medianDamage: 2, damageDeviation: 1 },
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2: { medianDamage: 5, damageDeviation: 0.5 },
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3: { medianDamage: 6.5, damageDeviation: 1.5 },
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4: { medianDamage: 11, damageDeviation: 1 }
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}
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};
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@ -3,7 +3,7 @@ import { ActionField } from '../fields/actionField.mjs';
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import BaseDataActor, { commonActorRules } from './base.mjs';
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import { resourceField, bonusField } from '../fields/actorField.mjs';
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import { parseTermsFromSimpleFormula } from '../../helpers/utils.mjs';
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import { adversaryScalingData } from '../../config/actorConfig.mjs';
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import { adversaryExpectedDamage, adversaryScalingData } from '../../config/actorConfig.mjs';
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export default class DhpAdversary extends BaseDataActor {
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static LOCALIZATION_PREFIXES = ['DAGGERHEART.ACTORS.Adversary'];
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@ -214,18 +214,11 @@ export default class DhpAdversary extends BaseDataActor {
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source.system.attack.roll.bonus += scale * entry.attack;
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}
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/** Returns the mean and standard deviation of a series of average damages */
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const analyzeDamageRange = range => {
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if (range.length <= 1) throw Error('Unexpected damage range, must have at least two entries');
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const mean = range.reduce((a, b) => a + b, 0) / range.length;
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const deviations = range.map(r => r - mean);
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const standardDeviation = Math.sqrt(deviations.reduce((r, d) => r + d * d, 0) / (range.length - 1));
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return { mean, standardDeviation };
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};
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// Calculate mean and standard deviation of expected damage ranges in each tier. Also create a function to remap damage
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const currentDamageRange = analyzeDamageRange(typeData[source.system.tier].damage);
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const newDamageRange = analyzeDamageRange(typeData[tier].damage);
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const expectedDamageData = adversaryExpectedDamage[source.system.type] ?? adversaryExpectedDamage.basic;
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const currentDamageRange = expectedDamageData[source.system.tier];
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const newDamageRange = expectedDamageData[tier];
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const convertDamage = (damage, newMean) => {
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const hitPointParts = damage.parts.filter(d => d.applyTo === 'hitPoints');
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if (hitPointParts.length === 1 && !hitPointParts[0].value.custom.enabled) {
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@ -248,14 +241,14 @@ export default class DhpAdversary extends BaseDataActor {
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)
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.join('+');
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const terms = parseTermsFromSimpleFormula(formula);
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const mean = terms.reduce((r, t) => r + (t.modifier ?? 0) + (t.dice ? (t.dice * (t.faces + 1)) / 2 : 0), 0);
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return { formula, terms, mean };
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const expected = terms.reduce((r, t) => r + (t.modifier ?? 0) + (t.dice ? (t.dice * (t.faces + 1)) / 2 : 0), 0);
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return { formula, terms, expected };
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};
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// Update damage of base attack
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const atkAverage = parseDamage(source.system.attack.damage).mean;
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const deviation = (atkAverage - currentDamageRange.mean) / currentDamageRange.standardDeviation;
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const newAtkAverage = newDamageRange.mean + newDamageRange.standardDeviation * deviation;
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const atkAverage = parseDamage(source.system.attack.damage).expected;
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const deviation = (atkAverage - currentDamageRange.medianDamage) / currentDamageRange.damageDeviation;
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const newAtkAverage = newDamageRange.medianDamage + newDamageRange.damageDeviation * deviation;
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const damage = source.system.attack.damage;
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convertDamage(damage, newAtkAverage);
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@ -266,11 +259,11 @@ export default class DhpAdversary extends BaseDataActor {
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for (const action of Object.values(item.system.actions)) {
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const damage = action.damage;
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if (!damage) continue;
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const { formula, mean } = parseDamage(damage);
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const { formula, expected: mean } = parseDamage(damage);
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if (mean === 0) continue;
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const deviation = (mean - currentDamageRange.mean) / currentDamageRange.standardDeviation;
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const newMean = newDamageRange.mean + newDamageRange.standardDeviation * deviation;
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const deviation = (mean - currentDamageRange.medianDamage) / currentDamageRange.damageDeviation;
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const newMean = newDamageRange.medianDamage + newDamageRange.damageDeviation * deviation;
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convertDamage(damage, newMean);
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const oldFormulaRegexp = new RegExp(formula.replace('+', '(?:\\s)?\\+(?:\\s)?'));
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