/// class House extends Infrastructure { constructor () { super('Houses', 'Provides room to house 10 followers.'); this.cost.money = 75000; this._costMultiplier.money = 1.01; } // two houses per compound public max: (state: GameState) => number = (state) => state.getResource('cmpnd').value * 2; 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; } }