/**********************************************************************
 * Controller.c
 *
 * This file contains the code for interfacing the controllers to the
 * game. Basically, when a controller read has completed, check to 
 * see what buttons have been pressed, and change some external state
 * variables to let the application know what has happened.
 *
 * Copyright 1995, Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics,
 * Inc.; the contents of this file may not be disclosed to third
 * parties, copied or duplicated in any form, in whole or in part,
 * without the prior written permission of Silicon Graphics, Inc.
 *
 * RESTRICTED RIGHTS LEGEND:
 * Use, duplication or disclosure by the Government is subject to
 * restrictions as set forth in subdivision (c)(1)(ii) of the Rights
 * in Technical Data and Computer Software clause at DFARS
 * 252.227-7013, and/or in similar or successor clauses in the FAR,
 * DOD or NASA FAR Supplement. Unpublished - rights reserved under the
 * Copyright Laws of the United States.
 *********************************************************************/

#include <ultralog.h>
#include <sched.h>
#include "simple.h"


#define X_SCALE_INCR	0.05f
#define Y_SCALE_INCR    0.05f
#define X_SCALE_MIN     0.2f
#define X_SCALE_MAX     4.0f
#define Y_SCALE_MIN     0.2f
#define Y_SCALE_MAX     3.0f
#define VELOCITY_INCR   0.2f

/****  Logo values ****/
s8     logoPos_x = 0;
s8     logoPos_y = 0;
s8     logoPos_z = 0;
f32    logoScale_x = 1.0f;
f32    logoScale_y = 1.0f;
f32    logoScale_z = 1.0f;
f32    logoVeloc   = 4.0f;

/****  Variables shared with other files ****/
u8     validcontrollers = 0; 

/**** variables used by this file for handling the controllers ****/
static OSContStatus  statusdata[MAXCONTROLLERS];
static OSContPad     controllerdata[MAXCONTROLLERS];
static OSScMsg       controllermsg;
static u16           lastButArray[MAXCONTROLLERS];


/**********************************************************************
 *
 * Routine for initializing the controllers. After initialized, set the
 * controller interrupt to be posted to the gfxFrameMsgQ, used by the 
 * gameproc in simple.c.
 *
 *********************************************************************/
void initCntrl(void)
{
    OSMesgQueue         serialMsgQ;
    OSMesg              serialMsg;
    s32                 i;

    osCreateMesgQueue(&serialMsgQ, &serialMsg, 1);
    osSetEventMesg(OS_EVENT_SI, &serialMsgQ, (OSMesg)1);

    if((i = osContInit(&serialMsgQ, &validcontrollers, &statusdata[0])) != 0)
#ifndef _FINALROM
        PRINTF("Failure initing controllers\n");
#else
        ;
#endif
    
    /**** Set up message and queue, for read completion notification ****/
    controllermsg.type = SIMPLE_CONTROLLER_MSG;

    osSetEventMesg(OS_EVENT_SI, &gfxFrameMsgQ, (OSMesg)&controllermsg);

}

/**********************************************************************
 *
 * Called after the controller read has completed. Check the information
 * from the read, and set state variables accordingly. If you were only 
 * interested in one button press at a time, you could use a switch or
 * a jump table. If you are going to respond to multiple button presses,
 * you will need to do a series of if's. In this example we only use
 * new button presses, ignoring buttons held down. Do this by exclusive
 * or'ing the lastbutton with pad->button, and then and pad->button 
 * with the result to only get the button downs, and ignore button ups.
 *
 *********************************************************************/
void UpdateController(void)
{
    OSContPad   *pad;
    u16         i, newbutton;
    u16         firstCntrl = 1;

    osContGetReadData(controllerdata);

    for( i = 0; i < MAXCONTROLLERS; i++)
    {
        if((validcontrollers >> i) & 1) {
            pad = &controllerdata[i];
	    /* ignore controllers with errors */
	    if (pad->errno)
		continue;
            /* get bits that have changed, ignore button ups */
            newbutton = pad->button ^ lastButArray[i];
            newbutton &= pad->button;
	    lastButArray[i] = pad->button;
	    
	    if (firstCntrl) { /* joy stick from first controller only */
	        logoPos_x = pad->stick_x;
	        logoPos_y = pad->stick_y;
		firstCntrl = 0;
	    }

#ifndef _FINALROM
            if (newbutton & CONT_A)
                PRINTF("Controller %d, Button A\n",i);

            if (newbutton & CONT_B)
		PRINTF("Controller %d, Button B\n",i);
    
            if (newbutton & CONT_C)
                PRINTF("Controller %d, Button C\n",i);

            if (newbutton & CONT_D)
                PRINTF("Controller %d, Button D\n",i);

            if (newbutton & CONT_E)
                PRINTF("Controller %d, Button E\n",i);

            if (newbutton & CONT_F)
                PRINTF("Controller %d, Button F\n",i);

            if (newbutton & CONT_G)
                PRINTF("Controller %d, Button G\n",i);
#endif

            if (pad->button & CONT_UP)  /* use continous, not just new */
	    {
		logoScale_y += Y_SCALE_INCR;
		if(logoScale_y > Y_SCALE_MAX)
		    logoScale_y = Y_SCALE_MAX;
	    }

            if (pad->button & CONT_DOWN)  /* use continous, not just new */
	    {
		logoScale_y -= Y_SCALE_INCR;
		if(logoScale_y < Y_SCALE_MIN)
		    logoScale_y = Y_SCALE_MIN;
	    }

            if (pad->button & CONT_LEFT)  /* use continous, not just new */
	    {
		logoScale_x -= X_SCALE_INCR;
		if(logoScale_x < X_SCALE_MIN)
		    logoScale_x = X_SCALE_MIN;
	    }

            if (pad->button & CONT_RIGHT)  /* use continous, not just new */
	    {
		logoScale_x += X_SCALE_INCR;
		if(logoScale_x > X_SCALE_MAX)
		    logoScale_x = X_SCALE_MAX;
	    }

            if (pad->button & CONT_R)
		logoVeloc += VELOCITY_INCR;

            if (pad->button & CONT_L)
		logoVeloc -= VELOCITY_INCR;

        }
    }    

}