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107 lines
2.7 KiB
C++
107 lines
2.7 KiB
C++
#pragma once
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#include "stdafx.h"
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#include "BaseControlDevice.h"
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class VbController : public BaseControlDevice
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{
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private:
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uint32_t _stateBuffer = 0;
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protected:
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enum Buttons { Down1 = 0, Left1, Select, Start, Up0, Down0, Left0, Right0, Right1, Up1, L, R, B, A };
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string GetKeyNames() override
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{
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return "dlSTUDLRruLRBA";
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}
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void InternalSetStateFromInput() override
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{
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for(KeyMapping keyMapping : _keyMappings) {
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for(int i=0; i<14; i++)
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{
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SetPressedState(i, keyMapping.VirtualBoyButtons[i]);
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}
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if(!_console->GetSettings()->CheckFlag(EmulationFlags::AllowInvalidInput)) {
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//If both U+D or L+R are pressed at the same time, act as if neither is pressed
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if(IsPressed(Buttons::Up0) && IsPressed(Buttons::Down0)) {
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ClearBit(Buttons::Down0);
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ClearBit(Buttons::Up0);
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}
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if(IsPressed(Buttons::Left0) && IsPressed(Buttons::Right0)) {
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ClearBit(Buttons::Left0);
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ClearBit(Buttons::Right0);
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}
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if (IsPressed(Buttons::Up1) && IsPressed(Buttons::Down1)) {
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ClearBit(Buttons::Down1);
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ClearBit(Buttons::Up1);
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}
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if (IsPressed(Buttons::Left1) && IsPressed(Buttons::Right1)) {
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ClearBit(Buttons::Left1);
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ClearBit(Buttons::Right1);
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}
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}
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}
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}
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uint16_t ToByte()
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{
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//"A Virtual Boy controller returns a 16-bit report in a similar order as SNES, with two additional buttons."
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return
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(uint8_t)IsPressed(Buttons::Down1) |
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((uint8_t)IsPressed(Buttons::Left1) << 1) |
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((uint8_t)IsPressed(Buttons::Select) << 2) |
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((uint8_t)IsPressed(Buttons::Start) << 3) |
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((uint8_t)IsPressed(Buttons::Up0) << 4) |
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((uint8_t)IsPressed(Buttons::Down0) << 5) |
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((uint8_t)IsPressed(Buttons::Left0) << 6) |
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((uint8_t)IsPressed(Buttons::Right0) << 7) |
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((uint8_t)IsPressed(Buttons::Right1) << 8) |
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((uint8_t)IsPressed(Buttons::Up1) << 9) |
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((uint8_t)IsPressed(Buttons::L) << 10) |
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((uint8_t)IsPressed(Buttons::R) << 11) |
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((uint8_t)IsPressed(Buttons::B) << 12) |
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((uint8_t)IsPressed(Buttons::A) << 13) |
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(1 << 14);
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}
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void StreamState(bool saving) override
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{
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BaseControlDevice::StreamState(saving);
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Stream(_stateBuffer);
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}
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void RefreshStateBuffer() override
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{
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_stateBuffer = (uint32_t)ToByte();
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}
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public:
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VbController(shared_ptr<Console> console, uint8_t port, KeyMappingSet keyMappings) : BaseControlDevice(console, port, keyMappings)
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{
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}
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uint8_t ReadRAM(uint16_t addr) override
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{
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uint8_t output = 0;
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if(IsCurrentPort(addr)) {
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StrobeProcessRead();
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output = _stateBuffer & 0x01;
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_stateBuffer >>= 1;
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//"All subsequent reads will return D=1 on an authentic controller but may return D=0 on third party controllers."
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_stateBuffer |= 0x8000;
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}
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return output;
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}
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void WriteRAM(uint16_t addr, uint8_t value) override
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{
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StrobeProcessWrite(value);
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}
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}; |