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Index: share/tilt_wii.c
===================================================================
--- share/tilt_wii.c (revision 3711)
+++ share/tilt_wii.c (working copy)
@@ -1,5 +1,6 @@
/*
* Copyright (C) 2003 Robert Kooima
+ * Copyright (C) 2011 Daniel Friesel
*
* NEVERBALL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published
@@ -22,9 +23,11 @@
/*---------------------------------------------------------------------------*/
#define _ENABLE_TILT
-#include <libcwiimote/wiimote.h>
-#include <libcwiimote/wiimote_api.h>
+#include <bluetooth/bluetooth.h>
+#include <cwiid.h>
+struct balance_cal balance_cal;
+
/*
* This data structure tracks button changes, counting transitions so that
* none are missed if the event handling thread falls significantly behind
@@ -43,6 +46,23 @@
unsigned char dnc;
};
+
+/* not having and setting a callback causes problems with SDL's mutex
+ * ("Mesg pipe is full")
+ */
+static void cwiid_callback(cwiid_wiimote_t *wiimote, int mesg_count,
+ union cwiid_mesg mesg[], struct timespec *ts)
+{
+}
+
+static double weight(unsigned short reading, unsigned short cal[3])
+{
+ if (reading < cal[1])
+ return ((double)reading - cal[0]) / (cal[1] - cal[0]) * 17.0;
+
+ return (((double)reading - cal[1]) / (cal[2] - cal[1]) * 17.0) + 17.0;
+}
+
static void set_button(struct button_state *B, int s)
{
if ((B->curr == 0) != (s == 0))
@@ -106,59 +126,80 @@
static int tilt_func(void *data)
{
- wiimote_t wiimote = WIIMOTE_INIT;
- const char *address = config_get_s(CONFIG_WIIMOTE_ADDR);
+ cwiid_wiimote_t *wiimote = NULL;
- if (strlen(address) > 0)
- {
- if (wiimote_connect(&wiimote, address) < 0)
- fprintf(stderr, "%s\n", wiimote_get_error());
- else
- {
- int running = 1;
+ struct cwiid_state wiistate;
- wiimote.mode.bits = WIIMOTE_MODE_ACC;
- wiimote.led.one = 1;
+ double wlt, wrt, wlb, wrb, bal_x, bal_y;
+ if ((wiimote = cwiid_open(BDADDR_ANY, 0)) == NULL)
+ fprintf(stderr, "Unable to connect to bboard\n");
+ else
+ {
+ int running = 1;
+
+ cwiid_set_led(wiimote, 1);
+ cwiid_get_balance_cal(wiimote, &balance_cal);
+ cwiid_set_mesg_callback(wiimote, cwiid_callback);
+ cwiid_enable(wiimote, CWIID_FLAG_MESG_IFC);
+ cwiid_set_rpt_mode(wiimote, CWIID_RPT_STATUS | CWIID_RPT_EXT);
+
SDL_mutexP(mutex);
state.status = running;
SDL_mutexV(mutex);
- while (mutex && running && wiimote_is_open(&wiimote))
+ while (mutex && running)
{
- if (wiimote_update(&wiimote) < 0)
- break;
SDL_mutexP(mutex);
{
running = state.status;
- set_button(&state.A, wiimote.keys.a);
- set_button(&state.B, wiimote.keys.b);
- set_button(&state.plus, wiimote.keys.plus);
- set_button(&state.minus, wiimote.keys.minus);
- set_button(&state.home, wiimote.keys.home);
- set_button(&state.L, wiimote.keys.left);
- set_button(&state.R, wiimote.keys.right);
- set_button(&state.U, wiimote.keys.up);
- set_button(&state.D, wiimote.keys.down);
+ set_button(&state.A, 0);
+ set_button(&state.B, 0);
+ set_button(&state.plus, 0);
+ set_button(&state.minus, 0);
+ set_button(&state.home, 0);
+ set_button(&state.L, 0);
+ set_button(&state.R, 0);
+ set_button(&state.U, 0);
+ set_button(&state.D, 0);
- if (isnormal(wiimote.tilt.y))
+ cwiid_get_state(wiimote, &wiistate);
+
+ wlt = weight(wiistate.ext.balance.left_top, balance_cal.left_top);
+ wrt = weight(wiistate.ext.balance.right_top, balance_cal.right_top);
+ wlb = weight(wiistate.ext.balance.left_bottom, balance_cal.left_bottom);
+ wrb = weight(wiistate.ext.balance.right_bottom, balance_cal.right_bottom);
+
+ bal_x = (wrt + wrb) / (wlt + wlb);
+ if (bal_x > 1)
+ bal_x = ((wlt + wlb) / (wrt + wrb) * (-1.0)) + 1.0;
+ else
+ bal_x -= 1;
+
+ bal_y = (wlt + wrt) / (wlb + wrb);
+ if (bal_y > 1)
+ bal_y = ((wlb + wrb) / (wlt + wrt) * (-1.0)) + 1.0;
+ else
+ bal_y -= 1;
+
+ if ((bal_y >= -1) && (bal_y <= 1))
{
+ bal_y *= 12;
state.x = (state.x * (FILTER - 1) +
- wiimote.tilt.y) / FILTER;
+ bal_y) / FILTER;
}
- if (isnormal(wiimote.tilt.x))
+ if ((bal_x >= -1) && (bal_x <= 1))
{
+ bal_x *= 12;
state.z = (state.z * (FILTER - 1) +
- wiimote.tilt.x) / FILTER;
+ bal_x) / FILTER;
}
}
SDL_mutexV(mutex);
}
- wiimote_disconnect(&wiimote);
- }
}
return 0;
}
@@ -295,3 +336,4 @@
}
/*---------------------------------------------------------------------------*/
+
Index: Makefile
===================================================================
--- Makefile (revision 3711)
+++ Makefile (working copy)
@@ -105,7 +105,7 @@
INTL_LIBS :=
ifeq ($(ENABLE_TILT),wii)
- TILT_LIBS := -lcwiimote -lbluetooth
+ TILT_LIBS := -lcwiid -lbluetooth
else
ifeq ($(ENABLE_TILT),loop)
TILT_LIBS := -lusb-1.0 -lfreespace
|
