input.c


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#include "input.h"
#include "lzr.h"

static const unsigned int keys[5] = {LZR_BUTTON_LEFT, LZR_BUTTON_RIGHT,
                                     LZR_BUTTON_UP, LZR_BUTTON_DOWN,
                                     LZR_BUTTON_O};
static int states[5] = {0};

void input_update(void)
{
	int i = 5;
	while (i-- > 0)
		if (LZR_ButtonDown(keys[i]))
			states[i] =
			    (states[i] == KS_UP) ? (KS_PRESSED) : (KS_DOWN);
		else
			states[i] = KS_UP;
}

int input_up(unsigned int k)
{
	if (k >= 5)
		return 0;
	return states[k] == KS_UP;
}

int input_down(unsigned int k)
{
	if (k >= 5)
		return 0;
	return states[k] == KS_DOWN || states[k] == KS_PRESSED;
}

int input_pressed(unsigned int k)
{
	if (k >= 5)
		return 0;
	return states[k] == KS_PRESSED;
}