#include "gxdevice.hpp"
#include "gxruntime.hpp"
#include "std.hpp"

gxDevice::gxDevice()
{
	reset();
}

gxDevice::~gxDevice() {}

void gxDevice::reset()
{
	memset(down_state, 0, sizeof(down_state));
	memset(axis_states, 0, sizeof(axis_states));
	memset(hit_count, 0, sizeof(hit_count));
	put = get = 0;
}

void gxDevice::downEvent(int key)
{
	down_state[key] = true;
	++hit_count[key];
	if (put - get < QUE_SIZE)
		que[put++ & QUE_MASK] = key;
}

void gxDevice::upEvent(int key)
{
	down_state[key] = false;
}

void gxDevice::setDownState(int key, bool down)
{
	if (down == down_state[key])
		return;
	if (down)
		downEvent(key);
	else
		upEvent(key);
}

void gxDevice::flush()
{
	update();
	memset(hit_count, 0, sizeof(hit_count));
	put = get = 0;
}

bool gxDevice::keyDown(int key)
{
	update();
	return down_state[key];
}

int gxDevice::keyHit(int key)
{
	update();
	int n = hit_count[key];
	hit_count[key] -= n;
	return n;
}

int gxDevice::getKey()
{
	update();
	return get < put ? que[get++ & QUE_MASK] : 0;
}

float gxDevice::getAxisState(int axis)
{
	update();
	return axis_states[axis];
}