SDL Wii/Inputs

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Input sample

This is a sample source code for testing inputs

Download binaries here [1]

/**
    @file   main.c
    @note  Published under the GPL 3 license (see license.txt for more info)
*/
 
//standard includes
#include <stdlib.h>
 
#include "fontmap.h"		//for display purpose
 
#ifndef GEKKO
	#include <stdbool.h>
#else
	//Wii includes
	#include <gccore.h>
	#include <fat.h>
#endif
 
//SDL includes
#include <SDL/SDL.h>
 
#define WINDOW_HEIGHT 480
#define WINDOW_WIDTH  640
 
/*
  define an array of pointer of joysticks, for games with one player, use just a SDL_Joystick*
  SDL_NumJoysticks and a malloc is also a good alternative for variable number of joysticks at runtime (not usual thougth)
*/
#define JOYNUMS 4
SDL_Joystick* joysticks[JOYNUMS];										
 
int p1_x = 0;	
int p1_y = 0;
 
int main(int argc, char** argv)
{
	#ifdef GEKKO
		fatInitDefault();
	#endif
 
 
    srand(time(NULL));
 
    if ( SDL_Init( SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0 )			// SDL_INIT_JOYSTICK must be passed to the init function
    {
        fprintf(stderr, "Unable to init SDL: %s\n", SDL_GetError() );
        exit(EXIT_FAILURE);
    }
 
 
    fontmap_init();
 
	for(int i=0;i<JOYNUMS;i++){
		joysticks[i] = SDL_JoystickOpen(i);							//Open each joysticks
	}
 
	SDL_WM_SetCaption("joytest", NULL);
 
    atexit(SDL_Quit);
    SDL_ShowCursor(SDL_DISABLE);
 
    // create a new window
    SDL_Surface *screen=NULL;
    screen = SDL_SetVideoMode(WINDOW_WIDTH, WINDOW_HEIGHT, 16, SDL_HWSURFACE);
    if (!screen){
        fprintf(stderr, "Unable to set video: %s\n", SDL_GetError());
        exit(EXIT_FAILURE);
    }
 
	state_in_game(screen);
 
	for(int i=0;i<JOYNUMS;i++){
		SDL_JoystickClose(i);							//Close each joysticks
	}
 
    SDL_Quit();
    return EXIT_SUCCESS;
}
 
void state_in_game(SDL_Surface *screen)
{
    bool done=false;
	int i = 0;
	int offset_x = 25;
	int offset_y = 8;
 
	int jaxis_value=0;
	int jaxis_axis=0;
	int jaxis_which=0;
 
	int x_move=0;
	int y_move=0; 
 
	while (!done)
    {
        SDL_FillRect(screen, 0, SDL_MapRGB(screen->format, 35, 75, 0));
 
		//joysticks properties can be fetched
		for(i=0;i<JOYNUMS;i++){
			fontmap_printf(i * (FONTMAP_SIZE * offset_x), 0, screen, "JOYPAD %d\nHAS %d AXES \nAND %d BUTTONS \nAND %d BALLS \nAND %d HATS ", i, SDL_JoystickNumAxes(joysticks[i]), SDL_JoystickNumButtons(joysticks[i]), SDL_JoystickNumBalls(joysticks[i]), SDL_JoystickNumHats(joysticks[i]));
		}
 
		SDL_JoystickUpdate();						//Update jotsticks status each loop
        SDL_Event event;
        while (SDL_PollEvent(&event)){
 
            if(event.type ==  SDL_QUIT){
                exit(EXIT_SUCCESS);
            }
 
 
			// Check button status is almost like handling keyboard events, use SDL_JOYBUTTONDOWN and SDL_JOYBUTTONUP
 
            switch ( event.type )
            {
				case SDL_JOYBUTTONDOWN:
					switch(event.jbutton.button)
					{
						case 0:					//A
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "A DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 1:					//B
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "B DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 2:					//1
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "1 DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 3:					//2
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "2 DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 4:					//-
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "MINUS DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 5:					//+
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "PLUS DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 6:					//HOME
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "HOME DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 7:					//Z
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "Z DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 8:					//C
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "C DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 9:					//a
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "A DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 10:				//b
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "B DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 11:				//x
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "X DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 12:				//y
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "Y DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 13:				//l
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "1 DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 14:				//r
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "L DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 15:				//zl
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "R DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 16:				//zr
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "ZR DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 17:				//-
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "MINUS DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 18:				//+
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "PLUS DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 19:				//HOME
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "HOME DOWN AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						default:
						break;
					}
				break;
				case SDL_JOYBUTTONUP:
					switch(event.jbutton.button)
					{
						case 0:					//A
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "A UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 1:					//B
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "B UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 2:					//1
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "1 UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 3:					//2
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "2 UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 4:					//-
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "MINUS UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 5:					//+
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "PLUS UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 6:					//HOME
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "HOME UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 7:					//Z
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "Z UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 8:					//C
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "C UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 9:					//a
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "A UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 10:				//b
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "B UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 11:				//x
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "X UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 12:				//y
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "Y UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 13:				//l
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "1 UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 14:				//r
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "L UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 15:				//zl
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "R UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 16:				//zr
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "ZR UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 17:				//-
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "MINUS UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 18:				//+
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "PLUS UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						case 19:				//HOME
							fontmap_printf( event.jbutton.which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (event.jbutton.button + offset_y), screen, "HOME UP AND %s", (event.jbutton.state == SDL_PRESSED ? "PRESSED": "RELEASED"));
						break;
						default:
						break;
					}
				break;
 
				//An axis motion 
				case SDL_JOYAXISMOTION:  
					if ( ( event.jaxis.value < -3200 ) || (event.jaxis.value > 3200 ) ) {
						jaxis_which = event.jaxis.which;
						jaxis_axis = event.jaxis.axis;
						jaxis_value = event.jaxis.value;
 
						if( event.jaxis.axis == 0) 
						{
							/* Left and right movement (according to jaxis_value) of the nunchuck stick or left analogic stick of the classic pad*/
						}
 
						if( event.jaxis.axis == 1) 
						{
							/* Up and Down movement (according to jaxis_value) of the nunchuck stick or left analogic stick of the classic pad */
						}
 
 
					}
				break;
 
			}
 
			//Infra Red is mapped as a mouse
			if( event.type == SDL_MOUSEMOTION ) {
				p1_x = event.motion.x; 
				p1_y = event.motion.y;
			}
 
        }	//end of pool event
 
		fontmap_printf( jaxis_which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (SDL_JoystickNumButtons(joysticks[jaxis_which]) + offset_y), screen, "IR X %d IR Y %d", p1_x, p1_y);
		fontmap_printf( jaxis_which * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (SDL_JoystickNumButtons(joysticks[jaxis_which]) + offset_y + 1), screen, "JOYAXISMOTION OF PAD %d\nAXIS %d\nVALUE %.4d", jaxis_which, jaxis_axis, jaxis_value);
 
		// The hat report the Directional PAD status 
		for(int joy_number=0;joy_number<JOYNUMS;joy_number++){
			int hat_number = SDL_JoystickNumHats(joysticks[joy_number]);
			for(int curhat=0;curhat<hat_number;curhat++){
				int joystate = SDL_JoystickGetHat(joysticks[joy_number], curhat);
				switch (joystate){
					case SDL_HAT_CENTERED:
						fontmap_printf( joy_number * (FONTMAP_SIZE * offset_x), offset_y  * FONTMAP_SIZE, screen, "HAT %d CENTERED", curhat);
					break;
 
					case SDL_HAT_UP:
						fontmap_printf( joy_number * (FONTMAP_SIZE * offset_x), offset_y  * FONTMAP_SIZE, screen, "HAT %d UP", curhat);
					break;
 
					case SDL_HAT_RIGHT:
						fontmap_printf( joy_number * (FONTMAP_SIZE * offset_x), offset_y  * FONTMAP_SIZE, screen, "HAT %d RIGHT", curhat);
					break;
 
					case SDL_HAT_DOWN:
						fontmap_printf( joy_number * (FONTMAP_SIZE * offset_x), offset_y  * FONTMAP_SIZE, screen, "HAT %d DOWN", curhat);
					break;
 
					case SDL_HAT_LEFT:
						fontmap_printf( joy_number * (FONTMAP_SIZE * offset_x), offset_y  * FONTMAP_SIZE, screen, "HAT %d LEFT", curhat);
					break;
 
					case SDL_HAT_RIGHTUP:
						fontmap_printf( joy_number * (FONTMAP_SIZE * offset_x), offset_y  * FONTMAP_SIZE, screen, "HAT %d RIGHTUP", curhat);
					break;
 
					case SDL_HAT_RIGHTDOWN:
						fontmap_printf( joy_number * (FONTMAP_SIZE * offset_x), offset_y  * FONTMAP_SIZE, screen, "HAT %d RIGHTDOWN", curhat);
					break;
 
					case SDL_HAT_LEFTUP:
						fontmap_printf( joy_number * (FONTMAP_SIZE * offset_x), offset_y  * FONTMAP_SIZE, screen, "HAT %d LEFTUP", curhat);
					break;
 
					case SDL_HAT_LEFTDOWN:
						fontmap_printf( joy_number * (FONTMAP_SIZE * offset_x), offset_y  * FONTMAP_SIZE, screen, "HAT %d LEFTDOWN", curhat);
					break;
				}
			}
 
			//Axis events can be fetched with a get axis function
			x_move=SDL_JoystickGetAxis(joysticks[joy_number], 0);
			y_move=SDL_JoystickGetAxis(joysticks[joy_number], 1);
 
			fontmap_printf( joy_number * (FONTMAP_SIZE * offset_x), FONTMAP_SIZE * (SDL_JoystickNumButtons(joysticks[joy_number])+ offset_y + 5), screen, "JOYSTICKGETAXIS\nX MOVE %d Y MOVE %d", x_move, y_move);
 
		}
 
 
 
 
		SDL_Flip(screen);
    }
}
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