#ifndef ENGINE_H

#define ENGINE_H

#include <stddef.h>

#include <stdint.h>

#ifdef __cplusplus

#define ENUM_CLASS enum

namespace Engine {

extern "C" {

#else

#endif

typedef struct _EngineInstance EngineInstance;

typedef struct {

  uint32_t width;

  uint32_t height;

  uint8_t hedgehogs_number;

  unsigned char* land;

} PreviewInfo;

typedef uint32_t hedgewars_engine_protocol_version_t();

typedef EngineInstance* start_engine_t();

typedef void generate_preview_t(EngineInstance* engine_state,

                                PreviewInfo* preview);

typedef void dispose_preview_t(EngineInstance* engine_state);

typedef void cleanup_t(EngineInstance* engine_state);

typedef void send_ipc_t(EngineInstance* engine_state, uint8_t* buf,

                        size_t size);

typedef size_t read_ipc_t(EngineInstance* engine_state, uint8_t* buf,

                          size_t size);

typedef void setup_current_gl_context_t(EngineInstance* engine_state,

                                        uint16_t width, uint16_t height,

                                        void (*(const char*))());

typedef void render_frame_t(EngineInstance* engine_state);

typedef bool advance_simulation_t(EngineInstance* engine_state, uint32_t ticks);

typedef void move_camera_t(EngineInstance* engine_state, int32_t delta_x,

                           int32_t delta_y);

ENUM_CLASS SimpleEventType{

    SwitchHedgehog, Timer, LongJump, HighJump, Accept, Deny,

};

ENUM_CLASS LongEventType{

    ArrowUp, ArrowDown, ArrowLeft, ArrowRight, Precision, Attack,

};

ENUM_CLASS LongEventState{

    Set,

    Unset,

};

ENUM_CLASS PositionedEventType{

    CursorMove,

    CursorClick,

};

typedef void simple_event_t(EngineInstance* engine_state,

                            SimpleEventType event_type);

typedef void long_event_t(EngineInstance* engine_state,

                          LongEventType event_type, LongEventState state);

typedef void positioned_event_t(EngineInstance* engine_state,

                                PositionedEventType event_type, int32_t x,

                                int32_t y);

#ifdef __cplusplus

#endif

#endif  // ENGINE_H