37 lines
731 B
C++
37 lines
731 B
C++
/* Abstract instance of a game state.
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This contains the basic functions for game looping code,
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and has a fully-functional event handler we can overload later
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*/
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#ifndef _GAME_STATE_H_
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#define _GAME_STATE_H_
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#include "mainevent.h"
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#include <SDL.h>
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#include <exception>
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#include <stack>
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using std::exception;
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using std::stack;
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class StateExit : public exception {};
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class GameState : public MainEvent
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{
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public:
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GameState(SDL_Surface* display) { this->display = display; }
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virtual ~GameState() {}
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virtual bool init() = 0;
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void execute(stack<GameState*> &game_state) throw(StateExit);
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protected:
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virtual void iterate() = 0;
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virtual void render() = 0;
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SDL_Surface* display;
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};
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#endif
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