initial commit

2026-09-04 16:03:17 +03:00
commit a05d5f4547
31 changed files with 2842 additions and 0 deletions
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+export type UpgradeId = 'moveSpeed' | 'chopSpeed' | 'logValue' | 'pickupRadius' | 'coinSpeed';
+
+export interface UpgradeDef {
+  id: UpgradeId;
+  name: string;
+  baseCost: number;
+  costGrowth: number;
+  /** The upgrade's stat value at a given level (levels start at 1, unbounded above). */
+  effectAtLevel: (level: number) => number;
+  formatEffect: (value: number) => string;
+}
+
+export const UPGRADE_LIST: UpgradeDef[] = [
+  {
+    id: 'moveSpeed',
+    name: 'Скорость движения',
+    baseCost: 5,
+    costGrowth: 1.35,
+    effectAtLevel: (level) => 160 + (level - 1) * 20,
+    formatEffect: (v) => `${Math.round(v)} px/с`,
+  },
+  {
+    id: 'chopSpeed',
+    name: 'Скорость рубки',
+    baseCost: 6,
+    costGrowth: 1.35,
+    effectAtLevel: (level) => (1 / 0.6) * Math.pow(1.15, level - 1),
+    formatEffect: (v) => `${v.toFixed(2)} бревен/с`,
+  },
+  {
+    id: 'logValue',
+    name: 'Стоимость бревна',
+    baseCost: 8,
+    costGrowth: 1.4,
+    effectAtLevel: (level) => level,
+    formatEffect: (v) => `${v} монет/бревно`,
+  },
+  {
+    id: 'pickupRadius',
+    name: 'Радиус подбора',
+    baseCost: 5,
+    costGrowth: 1.3,
+    effectAtLevel: (level) => 46 + (level - 1) * 6,
+    formatEffect: (v) => `${Math.round(v)} px`,
+  },
+  {
+    id: 'coinSpeed',
+    name: 'Скорость обмена на монеты',
+    baseCost: 7,
+    costGrowth: 1.35,
+    effectAtLevel: (level) => Math.pow(1.15, level - 1),
+    formatEffect: (v) => `${v.toFixed(2)} бревен/с`,
+  },
+];
+
+export const UPGRADES: Record<UpgradeId, UpgradeDef> = Object.fromEntries(
+  UPGRADE_LIST.map((def) => [def.id, def]),
+) as Record<UpgradeId, UpgradeDef>;
+
+/** Cost (in coins) to go from `currentLevel` to `currentLevel + 1`. */
+export function costForNextLevel(def: UpgradeDef, currentLevel: number): number {
+  return Math.ceil(def.baseCost * Math.pow(def.costGrowth, currentLevel - 1));
+}