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/*
* $Id: pad.d,v 1.2 2005/07/03 07:05:23 kenta Exp $
*
* Copyright 2004 Kenta Cho. Some rights reserved.
*/
module abagames.util.sdl.pad;
private import std.string;
private import std.stream;
private import SDL;
private import abagames.util.sdl.input;
private import abagames.util.sdl.recordableinput;
/**
* Joystick and keyboard input.
*/
public class Pad: Input {
public:
Uint8 *keys;
bool buttonReversed = false;
private:
SDL_Joystick *stick = null;
const int JOYSTICK_AXIS = 16384;
PadState state;
public this() {
state = new PadState;
}
public SDL_Joystick* openJoystick(SDL_Joystick *st = null) {
if (st == null) {
if (SDL_InitSubSystem(SDL_INIT_JOYSTICK) < 0)
return null;
stick = SDL_JoystickOpen(0);
} else {
stick = st;
}
return stick;
}
public void handleEvent(SDL_Event *event) {
keys = SDL_GetKeyState(null);
}
public PadState getState() {
int x = 0, y = 0;
state.dir = 0;
if (stick) {
x = SDL_JoystickGetAxis(stick, 0);
y = SDL_JoystickGetAxis(stick, 1);
}
if (keys[SDLK_RIGHT] == SDL_PRESSED || keys[SDLK_KP6] == SDL_PRESSED ||
keys[SDLK_d] == SDL_PRESSED || keys[SDLK_l] == SDL_PRESSED ||
x > JOYSTICK_AXIS)
state.dir |= PadState.Dir.RIGHT;
if (keys[SDLK_LEFT] == SDL_PRESSED || keys[SDLK_KP4] == SDL_PRESSED ||
keys[SDLK_a] == SDL_PRESSED || keys[SDLK_j] == SDL_PRESSED ||
x < -JOYSTICK_AXIS)
state.dir |= PadState.Dir.LEFT;
if (keys[SDLK_DOWN] == SDL_PRESSED || keys[SDLK_KP2] == SDL_PRESSED ||
keys[SDLK_s] == SDL_PRESSED || keys[SDLK_k] == SDL_PRESSED ||
y > JOYSTICK_AXIS)
state.dir |= PadState.Dir.DOWN;
if (keys[SDLK_UP] == SDL_PRESSED || keys[SDLK_KP8] == SDL_PRESSED ||
keys[SDLK_w] == SDL_PRESSED || keys[SDLK_i] == SDL_PRESSED ||
y < -JOYSTICK_AXIS)
state.dir |= PadState.Dir.UP;
state.button = 0;
int btn1 = 0, btn2 = 0;
float leftTrigger = 0, rightTrigger = 0;
if (stick) {
btn1 = SDL_JoystickGetButton(stick, 0) + SDL_JoystickGetButton(stick, 3) +
SDL_JoystickGetButton(stick, 4) + SDL_JoystickGetButton(stick, 7) +
SDL_JoystickGetButton(stick, 8) + SDL_JoystickGetButton(stick, 11);
btn2 = SDL_JoystickGetButton(stick, 1) + SDL_JoystickGetButton(stick, 2) +
SDL_JoystickGetButton(stick, 5) + SDL_JoystickGetButton(stick, 6) +
SDL_JoystickGetButton(stick, 9) + SDL_JoystickGetButton(stick, 10);
}
if (keys[SDLK_z] == SDL_PRESSED || keys[SDLK_PERIOD] == SDL_PRESSED ||
keys[SDLK_LCTRL] == SDL_PRESSED || keys[SDLK_RCTRL] == SDL_PRESSED ||
btn1) {
if (!buttonReversed)
state.button |= PadState.Button.A;
else
state.button |= PadState.Button.B;
}
if (keys[SDLK_x] == SDL_PRESSED || keys[SDLK_SLASH] == SDL_PRESSED ||
keys[SDLK_LALT] == SDL_PRESSED || keys[SDLK_RALT] == SDL_PRESSED ||
keys[SDLK_LSHIFT] == SDL_PRESSED || keys[SDLK_RSHIFT] == SDL_PRESSED ||
keys[SDLK_RETURN] == SDL_PRESSED ||
btn2) {
if (!buttonReversed)
state.button |= PadState.Button.B;
else
state.button |= PadState.Button.A;
}
return state;
}
public PadState getNullState() {
state.clear();
return state;
}
}
public class PadState {
public:
static enum Dir {
UP = 1, DOWN = 2, LEFT = 4, RIGHT = 8,
};
static enum Button {
A = 16, B = 32, ANY = 48,
};
int dir, button;
private:
public static PadState newInstance() {
return new PadState;
}
public static PadState newInstance(PadState s) {
return new PadState(s);
}
public this() {
}
public this(PadState s) {
this();
set(s);
}
public void set(PadState s) {
dir = s.dir;
button = s.button;
}
public void clear() {
dir = button = 0;
}
public void read(File fd) {
int s;
fd.read(s);
dir = s & (Dir.UP | Dir.DOWN | Dir.LEFT | Dir.RIGHT);
button = s & Button.ANY;
}
public void write(File fd) {
int s = dir | button;
fd.write(s);
}
public bool equals(PadState s) {
if (dir == s.dir && button == s.button)
return true;
else
return false;
}
}
public class RecordablePad: Pad {
mixin RecordableInput!(PadState);
private:
public override PadState getState() {
return getState(true);
}
public PadState getState(bool doRecord) {
PadState s = super.getState();
if (doRecord)
record(s);
return s;
}
}
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