Added point buy to computation engine

app/imports/api/engine/computation/buildComputation/linkTypeDependencies.js

@@ -14,6 +14,7 @@ const linkDependenciesByType = {
   effect: linkEffects,
   proficiency: linkProficiencies,
   roll: linkRoll,
+  pointBuy: linkPointBuy,
   propertySlot: linkSlot,
   skill: linkSkill,
   spell: linkAction,
@@ -242,6 +243,23 @@ function linkDamageMultiplier(dependencyGraph, prop) {
   });
 }
 
+function linkPointBuy(dependencyGraph, prop){
+  dependOnCalc({ dependencyGraph, prop, key: 'min' });
+  dependOnCalc({ dependencyGraph, prop, key: 'max' });
+  dependOnCalc({ dependencyGraph, prop, key: 'cost' });
+  prop.values?.forEach(row => {
+    row.type = 'pointBuyRow';
+    row.tableName = prop.name;
+    row.tableId = prop._id;
+    dependencyGraph.addNode(row._id, row);
+    linkVariableName(dependencyGraph, row);
+    dependOnCalc({ dependencyGraph, row, key: 'min' });
+    dependOnCalc({ dependencyGraph, row, key: 'max' });
+    dependOnCalc({ dependencyGraph, row, key: 'cost' });
+  });
+  if (prop.inactive) return;
+}
+
 function linkProficiencies(dependencyGraph, prop){
   // The stats depend on the proficiency
   if (prop.inactive) return;

app/imports/api/engine/computation/computeComputation/computeByType.js

@@ -2,6 +2,7 @@ import _variable from './computeByType/computeVariable.js';
 import action from './computeByType/computeAction.js';
 import attribute from './computeByType/computeAttribute.js';
 import skill from './computeByType/computeSkill.js';
+import pointBuy from './computeByType/computePointBuy.js';
 import propertySlot from './computeByType/computeSlot.js';
 import container from './computeByType/computeContainer.js';
 import _calculation from './computeByType/computeCalculation.js';
@@ -13,6 +14,7 @@ export default Object.freeze({
   attribute,
   container,
   skill,
+  pointBuy,
   propertySlot,
   spell: action,
 });

app/imports/api/engine/computation/computeComputation/computeByType/computePointBuy.js

@@ -0,0 +1,50 @@
+import { has } from 'lodash';
+import evaluateCalculation from '../../utility/evaluateCalculation.js';
+
+export default function computePointBuy(computation, node) {
+  const prop = node.data;
+  const tableMin = prop.min?.value || null;
+  const tableMax = prop.max?.value || null;
+  prop.spent = 0;
+  prop.values?.forEach(row => {
+    // Clean up added properties
+    delete row.tableId;
+    delete row.tableName;
+    delete row.type;
+
+    row.spent = 0;
+    if (row.value === undefined) return;
+    const min = has(row, 'min.value') ? row.min.value : tableMin;
+    const max = has(row, 'max.value') ? row.max.value : tableMax;
+    const costFunction = EJSON.clone(row.cost || prop.cost);
+    if (costFunction) costFunction.parseLevel = 'reduce';
+
+    // Check min and max
+    if (min !== null && row.value < min) {
+      row.errors = row.errors || [];
+      row.errors.push('Value smaller than min value');
+    }
+    if (max !== null && row.value > max) {
+      row.errors = row.errors || [];
+      row.errors.push('Value larger than max value');
+    }
+    // Evaluate the cost function
+    if (!costFunction) return;
+    evaluateCalculation(costFunction, { ...computation.scope, value: row.value });
+    // Write calculation errors
+    costFunction.errors?.forEach(error => {
+      if (error?.message) {
+        row.errors = row.errors || [];
+        row.errors.push(error.message);
+      }
+    });
+    if (Number.isFinite(costFunction.value)) {
+      row.spent = costFunction.value;
+      prop.spent += costFunction.value;
+    }
+  });
+  if (prop.spent > prop.total?.value) {
+    prop.errors = prop.errors || [];
+    prop.errors.push('Spent more than total points available')
+  }
+}

app/imports/api/engine/computation/computeComputation/computeByType/computeVariable/aggregate/aggregateDefinition.js

@@ -8,7 +8,13 @@ export default function aggregateDefinition({node, linkedNode, link}){
   // get current defining prop
   const definingProp = node.data.definingProp;
   // Find the last defining prop
-  if (!definingProp || prop.order > definingProp.order){
+  if (
+    !definingProp ||
+    prop.type !== 'pointBuyRow' && (
+      definingProp.type === 'pointBuyRow' ||
+      prop.order > definingProp.order
+    )
+  ) {
     // override the current defining prop
     overrideProp(definingProp, node);
     // set this prop as the new defining prop
@@ -18,9 +24,32 @@ export default function aggregateDefinition({node, linkedNode, link}){
   }
 
   // Aggregate the base value due to the defining properties
-  const propBaseValue = prop.baseValue?.value;
+  let propBaseValue = prop.baseValue?.value;
+  // Point buy rows use prop.value instead of prop.baseValue
+  if (prop.type === 'pointBuyRow') {
+    propBaseValue = prop.value;
+  }
 
   if (propBaseValue === undefined) return;
+  // Store a summary of the definition as a base value effect
+  node.data.effects = node.data.effects || [];
+  if (prop.type === 'pointBuyRow') {
+    node.data.effects.push({
+      _id: prop.tableId,
+      name: prop.tableName,
+      operation: 'base',
+      amount: { value: propBaseValue },
+      type: 'pointBuy',
+    });
+  } else {
+    node.data.effects.push({
+      _id: prop._id,
+      name: prop.name,
+      operation: 'base',
+      amount: { value: propBaseValue },
+      type: prop.type,
+    });
+  }
   if (node.data.baseValue === undefined || propBaseValue > node.data.baseValue){
     node.data.baseValue = propBaseValue;
   }

app/imports/api/engine/computation/computeComputation/computeByType/computeVariable/aggregate/aggregateEffect.js

@@ -24,6 +24,7 @@ export default function aggregateEffect({node, linkedNode, link}){
     name: linkedNode.data.name,
     operation: linkedNode.data.operation,
     amount: linkedNode.data.amount && {value: linkedNode.data.amount.value},
+    type: linkedNode.data.type,
     // ancestors: linkedNode.data.ancestors,
   });