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#pragma once
#include "nes/sys/types/button-mask.hh"
namespace nes::app
{
/// An abstract input device which can be used to play games.
class input_device
{
public:
virtual ~input_device() = default;
input_device(input_device const&) = delete;
input_device(input_device&&) = delete;
auto operator=(input_device const&) -> input_device& = delete;
auto operator=(input_device&&) -> input_device& = delete;
virtual auto read_key_up() -> bool = 0;
virtual auto read_key_down() -> bool = 0;
virtual auto read_key_left() -> bool = 0;
virtual auto read_key_right() -> bool = 0;
virtual auto read_key_a() -> bool = 0;
virtual auto read_key_b() -> bool = 0;
virtual auto read_key_select() -> bool = 0;
virtual auto read_key_start() -> bool = 0;
auto read_mask() -> sys::button_mask
{
auto res = sys::button_mask{};
if (read_key_up()) { res.add(sys::buttons::up); }
if (read_key_down()) { res.add(sys::buttons::down); }
if (read_key_left()) { res.add(sys::buttons::left); }
if (read_key_right()) { res.add(sys::buttons::right); }
if (read_key_a()) { res.add(sys::buttons::a); }
if (read_key_b()) { res.add(sys::buttons::b); }
if (read_key_select()) { res.add(sys::buttons::select); }
if (read_key_start()) { res.add(sys::buttons::start); }
return res;
}
protected:
explicit input_device() = default;
};
} // namespace nes::app
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