#ifndef EXPANSION_COST_CHANGED_EVENT_H
#define EXPANSION_COST_CHANGED_EVENT_H

#include "Event.h"

// Fired when the current asteroid-expansion cost changes (REQ-EXP-COST): once at
// startup and again after each expansion is purchased. Carries the cost in
// building blocks so the header Expand button can update its caption/enabled
// state (REQ-UI-EXPAND-BUTTON).
class ExpansionCostChangedEvent : public Event
{
public:
	explicit ExpansionCostChangedEvent(int cost) : cost(cost) {}
	const int cost;
};

#endif   // EXPANSION_COST_CHANGED_EVENT_H