ddnet/src/engine/input.h
Robert Müller 5b3f6e8ffd Use dropdown menu to select game controller
Instead of using one button to cycle through all controllers.
2023-06-09 14:04:35 +02:00

154 lines
3.9 KiB
C++

/* (c) Magnus Auvinen. See licence.txt in the root of the distribution for more information. */
/* If you are missing that file, acquire a complete release at teeworlds.com. */
#ifndef ENGINE_INPUT_H
#define ENGINE_INPUT_H
#include "kernel.h"
const int g_MaxKeys = 512;
extern const char g_aaKeyStrings[g_MaxKeys][20];
class IInput : public IInterface
{
MACRO_INTERFACE("input", 0)
public:
enum
{
INPUT_TEXT_SIZE = 32 * UTF8_BYTE_LENGTH + 1,
};
class CEvent
{
public:
int m_Flags;
int m_Key;
char m_aText[INPUT_TEXT_SIZE];
int m_InputCount;
};
protected:
enum
{
INPUT_BUFFER_SIZE = 32
};
// quick access to events
size_t m_NumEvents;
CEvent m_aInputEvents[INPUT_BUFFER_SIZE];
int64_t m_LastUpdate;
float m_UpdateTime;
public:
enum
{
FLAG_PRESS = 1 << 0,
FLAG_RELEASE = 1 << 1,
FLAG_TEXT = 1 << 2,
};
enum ECursorType
{
CURSOR_NONE,
CURSOR_MOUSE,
CURSOR_JOYSTICK,
};
enum
{
MAX_COMPOSITION_ARRAY_SIZE = 32, // SDL2 limitation
COMP_LENGTH_INACTIVE = -1,
};
// events
size_t NumEvents() const { return m_NumEvents; }
virtual bool IsEventValid(const CEvent &Event) const = 0;
const CEvent &GetEvent(size_t Index) const
{
dbg_assert(Index < m_NumEvents, "Index invalid");
return m_aInputEvents[Index];
}
/**
* @return Rolling average of the time in seconds between
* calls of the Update function.
*/
float GetUpdateTime() const { return m_UpdateTime; }
// keys
virtual bool ModifierIsPressed() const = 0;
virtual bool ShiftIsPressed() const = 0;
virtual bool AltIsPressed() const = 0;
virtual bool KeyIsPressed(int Key) const = 0;
virtual bool KeyPress(int Key, bool CheckCounter = false) const = 0;
const char *KeyName(int Key) const { return (Key >= 0 && Key < g_MaxKeys) ? g_aaKeyStrings[Key] : g_aaKeyStrings[0]; }
virtual void Clear() = 0;
// joystick
class IJoystick
{
public:
virtual int GetIndex() const = 0;
virtual const char *GetName() const = 0;
virtual int GetNumAxes() const = 0;
virtual int GetNumButtons() const = 0;
virtual int GetNumBalls() const = 0;
virtual int GetNumHats() const = 0;
virtual float GetAxisValue(int Axis) = 0;
virtual void GetHatValue(int Hat, int (&HatKeys)[2]) = 0;
virtual bool Relative(float *pX, float *pY) = 0;
virtual bool Absolute(float *pX, float *pY) = 0;
};
virtual size_t NumJoysticks() const = 0;
virtual IJoystick *GetJoystick(size_t Index) = 0;
virtual IJoystick *GetActiveJoystick() = 0;
virtual void SetActiveJoystick(size_t Index) = 0;
// mouse
virtual void NativeMousePos(int *pX, int *pY) const = 0;
virtual bool NativeMousePressed(int Index) = 0;
virtual void MouseModeRelative() = 0;
virtual void MouseModeAbsolute() = 0;
virtual bool MouseDoubleClick() = 0;
virtual bool MouseRelative(float *pX, float *pY) = 0;
// clipboard
virtual const char *GetClipboardText() = 0;
virtual void SetClipboardText(const char *pText) = 0;
// text editing
virtual void StartTextInput() = 0;
virtual void StopTextInput() = 0;
virtual const char *GetComposition() const = 0;
virtual bool HasComposition() const = 0;
virtual int GetCompositionCursor() const = 0;
virtual int GetCompositionLength() const = 0;
virtual const char *GetCandidate(int Index) const = 0;
virtual int GetCandidateCount() const = 0;
virtual int GetCandidateSelectedIndex() const = 0;
virtual void SetCompositionWindowPosition(float X, float Y, float H) = 0;
virtual bool GetDropFile(char *aBuf, int Len) = 0;
ECursorType CursorRelative(float *pX, float *pY)
{
if(MouseRelative(pX, pY))
return CURSOR_MOUSE;
IJoystick *pJoystick = GetActiveJoystick();
if(pJoystick && pJoystick->Relative(pX, pY))
return CURSOR_JOYSTICK;
return CURSOR_NONE;
}
};
class IEngineInput : public IInput
{
MACRO_INTERFACE("engineinput", 0)
public:
virtual void Init() = 0;
virtual void Shutdown() override = 0;
virtual int Update() = 0;
};
extern IEngineInput *CreateEngineInput();
#endif