109 lines
2.2 KiB
C++
109 lines
2.2 KiB
C++
#include "Input.h"
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#include <stddef.h>
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#include <stdio.h>
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#include <string.h>
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#include "SDL.h"
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#include "WindowsWrapper.h"
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// The original names for these variables are unknown
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static SDL_Joystick *joystick = NULL;
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static int joystick_neutral_x = 0;
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static int joystick_neutral_y = 0;
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void ReleaseDirectInput(void)
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{
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// Close opened joystick (if exists)
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if (joystick != NULL)
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{
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SDL_JoystickClose(joystick);
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joystick = NULL;
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}
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SDL_QuitSubSystem(SDL_INIT_JOYSTICK);
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}
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BOOL InitDirectInput(void)
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{
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SDL_InitSubSystem(SDL_INIT_JOYSTICK);
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if (!HookAllDirectInputDevices())
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return FALSE;
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return TRUE;
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}
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// The original name for this function and its variables are unknown
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BOOL HookAllDirectInputDevices(void)
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{
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int i;
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// Open first available joystick
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for (i = 0; i < SDL_NumJoysticks(); ++i)
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{
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joystick = SDL_JoystickOpen(i);
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// Break as soon as a joystick is properly opened
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if (joystick != NULL)
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return TRUE;
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}
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return FALSE;
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}
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BOOL GetJoystickStatus(JOYSTICK_STATUS *status)
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{
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if (joystick == NULL)
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return FALSE;
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// The original Input.cpp assumed there were 32 buttons (because of DirectInput's 'DIJOYSTATE' struct)
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int numButtons = SDL_JoystickNumButtons(joystick);
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if (numButtons > 32)
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numButtons = 32;
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// Read whatever buttons actually exist
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int i = 0;
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for (; i < numButtons; ++i)
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{
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if (SDL_JoystickGetButton(joystick, i) != 0)
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status->bButton[i] = TRUE;
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else
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status->bButton[i] = FALSE;
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}
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// Blank the buttons that do not
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for (; i < 32; ++i)
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status->bButton[i] = FALSE;
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status->bDown = FALSE;
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status->bRight = FALSE;
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status->bUp = FALSE;
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status->bLeft = FALSE;
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const Sint16 joystick_x = SDL_JoystickGetAxis(joystick, 0);
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if (joystick_x < joystick_neutral_x - 10000)
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status->bLeft = TRUE;
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else if (joystick_x > joystick_neutral_x + 10000)
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status->bRight = TRUE;
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const Sint16 joystick_y = SDL_JoystickGetAxis(joystick, 1);
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if (joystick_y < joystick_neutral_y - 10000)
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status->bUp = TRUE;
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else if (joystick_y > joystick_neutral_y + 10000)
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status->bDown = TRUE;
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return TRUE;
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}
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BOOL ResetJoystickStatus(void)
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{
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if (joystick == NULL)
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return FALSE;
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joystick_neutral_x = SDL_JoystickGetAxis(joystick, 0);
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joystick_neutral_y = SDL_JoystickGetAxis(joystick, 1);
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return TRUE;
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}
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