/// class Church extends Infrastructure { constructor () { super('Churches', 'Preaching grounds for 2 pastors.'); this.cost.money = 150000; this._costMultiplier.money = 1.01; } public max: (state: GameState) => number = (state) => state.getResource('cmpnd').value; public isUnlocked (state: GameState): boolean { if (this._isUnlocked) return true; const compounds: IResource = state.getResource('cmpnd'); if (compounds.value > 0) { this._isUnlocked = true; } return this._isUnlocked; } }