mirror of https://github.com/stella-emu/stella.git
152 lines
3.8 KiB
C++
152 lines
3.8 KiB
C++
//============================================================================
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//
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// SSSS tt lll lll
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// SS SS tt ll ll
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// SS tttttt eeee ll ll aaaa
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// SSSS tt ee ee ll ll aa
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// SS tt eeeeee ll ll aaaaa -- "An Atari 2600 VCS Emulator"
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// SS SS tt ee ll ll aa aa
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// SSSS ttt eeeee llll llll aaaaa
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//
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// Copyright (c) 1995-2018 by Bradford W. Mott, Stephen Anthony
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// and the Stella Team
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//
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// See the file "License.txt" for information on usage and redistribution of
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// this file, and for a DISCLAIMER OF ALL WARRANTIES.
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//============================================================================
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#ifndef SWITCHES_HXX
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#define SWITCHES_HXX
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class Event;
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class Properties;
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class Settings;
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#include "Serializable.hxx"
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#include "bspf.hxx"
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/**
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This class represents the console switches of the game console.
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@author Bradford W. Mott
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*/
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class Switches : public Serializable
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{
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/**
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Riot debug class needs special access to the underlying controller state
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*/
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friend class RiotDebug;
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public:
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/**
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Create a new set of switches using the specified events and
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properties.
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@param event The event object to use for events
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@param props The ROM properties to use for the currently enabled ROM
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@param settings The settings used by the system
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*/
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Switches(const Event& event, const Properties& props, const Settings& settings);
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virtual ~Switches() = default;
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public:
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/**
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Get the value of the console switches.
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@return The 8 bits which represent the state of the console switches
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*/
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uInt8 read() const { return mySwitches; }
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/**
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Update the switches variable.
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*/
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void update();
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/**
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Save the current state of the switches to the given Serializer.
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@param out The Serializer object to use
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@return False on any errors, else true
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*/
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bool save(Serializer& out) const override;
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/**
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Load the current state of the switches from the given Serializer.
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@param in The Serializer object to use
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@return False on any errors, else true
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*/
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bool load(Serializer& in) override;
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/**
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Get a descriptor for the device name (used in error checking).
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@return The name of the object
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*/
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string name() const override { return "Switches"; }
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/**
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Query the 'Console_TelevisionType' switches bit.
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@return True if 'Color', false if 'BlackWhite'
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*/
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bool tvColor() const { return mySwitches & 0x08; }
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/**
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Sets 'Console_TelevisionType' switches bit.
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*/
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void setTvColor(bool setColor);
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/**
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Query the 'Console_LeftDifficulty' switches bit.
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@return True if 'A', false if 'B'
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*/
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bool leftDifficultyA() const { return mySwitches & 0x40; }
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/**
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Sets 'Console_LeftDifficulty' switches bit.
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*/
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void setLeftDifficultyA(bool setA);
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/**
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Query the 'Console_RightDifficulty' switches bit.
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@return True if 'A', false if 'B'
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*/
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bool rightDifficultyA() const { return mySwitches & 0x80; }
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/**
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Sets 'Console_LeftDifficulty' switches bit.
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*/
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void setRightDifficultyA(bool setA);
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/**
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Toggle between 2600 and 7800 mode depending on settings.
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@return True if 7800 mode enabled, else false
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*/
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bool check7800Mode(const Settings& settings);
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private:
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// Reference to the event object to use
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const Event& myEvent;
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// State of the console switches
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uInt8 mySwitches;
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// Are we in 7800 or 2600 mode?
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bool myIs7800;
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private:
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// Following constructors and assignment operators not supported
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Switches() = delete;
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Switches(const Switches&) = delete;
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Switches(Switches&&) = delete;
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Switches& operator=(const Switches&) = delete;
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Switches& operator=(Switches&&) = delete;
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};
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#endif
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