Mesen-S/Core/SnesMouse.h

94 lines
2.2 KiB
C++

#pragma once
#include "stdafx.h"
#include "BaseControlDevice.h"
#include "IKeyManager.h"
#include "KeyManager.h"
#include "Console.h"
#include "EmuSettings.h"
#include "../Utilities/Serializer.h"
class SnesMouse : public BaseControlDevice
{
private:
uint32_t _stateBuffer = 0;
uint8_t _sensitivity = 0;
protected:
bool HasCoordinates() override { return true; }
void Serialize(Serializer &s) override
{
BaseControlDevice::Serialize(s);
s.Stream(_stateBuffer, _sensitivity);
}
string GetKeyNames() override
{
return "LR";
}
void InternalSetStateFromInput() override
{
SetPressedState(Buttons::Left, KeyManager::IsMouseButtonPressed(MouseButton::LeftButton));
SetPressedState(Buttons::Right, KeyManager::IsMouseButtonPressed(MouseButton::RightButton));
SetMovement(KeyManager::GetMouseMovement(
_console->GetSettings()->GetVideoConfig().VideoScale,
_console->GetSettings()->GetInputConfig().MouseSensitivity + 1
));
}
public:
enum Buttons { Left = 0, Right };
SnesMouse(Console* console, uint8_t port) : BaseControlDevice(console, port)
{
}
ControllerType GetControllerType() override
{
return ControllerType::SnesMouse;
}
void WriteRam(uint16_t addr, uint8_t value) override
{
StrobeProcessWrite(value);
}
uint8_t ReadRam(uint16_t addr) override
{
uint8_t output = 0;
if((addr == 0x4016 && (_port & 0x01) == 0) || (addr == 0x4017 && (_port & 0x01) == 1)) {
StrobeProcessRead();
if(_strobe) {
_sensitivity = (_sensitivity + 1) % 3;
}
output = (_stateBuffer & 0x80000000) >> 31;
if(_port >= 2) {
output <<= 1;
}
_stateBuffer <<= 1;
}
return output;
}
void RefreshStateBuffer() override
{
MouseMovement mov = GetMovement();
int32_t dx = mov.dx * (1 + _sensitivity);
int32_t dy = mov.dy * (1 + _sensitivity);
uint32_t upFlag = dy < 0 ? 0x80 : 0;
uint32_t leftFlag = dx < 0 ? 0x80 : 0;
dx = std::min(std::abs(dx), 127);
dy = std::min(std::abs(dy), 127);
uint8_t byte1 = 0;
uint8_t byte2 = 0x01 | ((_sensitivity & 0x03) << 4) | (IsPressed(SnesMouse::Buttons::Left) ? 0x40 : 0) | (IsPressed(SnesMouse::Buttons::Right) ? 0x80 : 0);
uint8_t byte3 = dy | upFlag;
uint8_t byte4 = dx | leftFlag;
_stateBuffer = (byte1 << 24) | (byte2 << 16) | (byte3 << 8) | byte4;
}
};