kopia lustrzana https://github.com/Jean-MarcHarvengt/MCUME
71 wiersze
2.5 KiB
C
71 wiersze
2.5 KiB
C
//
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// Copyright(C) 2005-2014 Simon Howard
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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//
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// This program is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// DESCRIPTION:
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// System-specific joystick interface.
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//
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#ifndef __I_JOYSTICK__
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#define __I_JOYSTICK__
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// Number of "virtual" joystick buttons defined in configuration files.
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// This needs to be at least as large as the number of different key
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// bindings supported by the higher-level game code (joyb* variables).
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#define NUM_VIRTUAL_BUTTONS 10
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// If this bit is set in a configuration file axis value, the axis is
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// not actually a joystick axis, but instead is a "button axis". This
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// means that instead of reading an SDL joystick axis, we read the
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// state of two buttons to get the axis value. This is needed for eg.
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// the PS3 SIXAXIS controller, where the D-pad buttons register as
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// buttons, not as two axes.
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#define BUTTON_AXIS 0x10000
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// Query whether a given axis value describes a button axis.
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#define IS_BUTTON_AXIS(axis) ((axis) >= 0 && ((axis) & BUTTON_AXIS) != 0)
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// Get the individual buttons from a button axis value.
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#define BUTTON_AXIS_NEG(axis) ((axis) & 0xff)
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#define BUTTON_AXIS_POS(axis) (((axis) >> 8) & 0xff)
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// Create a button axis value from two button values.
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#define CREATE_BUTTON_AXIS(neg, pos) (BUTTON_AXIS | (neg) | ((pos) << 8))
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// If this bit is set in an axis value, the axis is not actually a
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// joystick axis, but is a "hat" axis. This means that we read (one of)
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// the hats on the joystick.
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#define HAT_AXIS 0x20000
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#define IS_HAT_AXIS(axis) ((axis) >= 0 && ((axis) & HAT_AXIS) != 0)
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// Get the hat number from a hat axis value.
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#define HAT_AXIS_HAT(axis) ((axis) & 0xff)
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// Which axis of the hat? (horizonal or vertical)
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#define HAT_AXIS_DIRECTION(axis) (((axis) >> 8) & 0xff)
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#define CREATE_HAT_AXIS(hat, direction) \
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(HAT_AXIS | (hat) | ((direction) << 8))
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#define HAT_AXIS_HORIZONTAL 1
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#define HAT_AXIS_VERTICAL 2
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void I_InitJoystick(void);
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void I_ShutdownJoystick(void);
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void I_UpdateJoystick(void);
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void I_BindJoystickVariables(void);
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#endif /* #ifndef __I_JOYSTICK__ */
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