mirror of https://github.com/stella-emu/stella.git
124 lines
3.8 KiB
C++
124 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) 1995-2020 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 DRIVING_HXX
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#define DRIVING_HXX
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#include "Control.hxx"
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#include "Event.hxx"
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/**
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The standard Atari 2600 Indy 500 driving controller.
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@author Bradford W. Mott
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*/
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class Driving : public Controller
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{
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public:
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/**
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Create a new Indy 500 driving controller plugged into
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the specified jack
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@param jack The jack the controller is plugged into
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@param event The event object to use for events
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@param system The system using this controller
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*/
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Driving(Jack jack, const Event& event, const System& system);
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virtual ~Driving() = default;
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public:
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/**
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Update the entire digital and analog pin state according to the
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events currently set.
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*/
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void update() override;
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/**
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Returns the name of this controller.
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*/
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string name() const override { return "Driving"; }
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/**
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Answers whether the controller is intrinsically an analog controller.
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*/
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bool isAnalog() const override { return true; }
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/**
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Determines how this controller will treat values received from the
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X/Y axis and left/right buttons of the mouse. Since not all controllers
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use the mouse the same way (or at all), it's up to the specific class to
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decide how to use this data.
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In the current implementation, the left button is tied to the X axis,
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and the right one tied to the Y axis.
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@param xtype The controller to use for x-axis data
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@param xid The controller ID to use for x-axis data (-1 for no id)
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@param ytype The controller to use for y-axis data
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@param yid The controller ID to use for y-axis data (-1 for no id)
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@return Whether the controller supports using the mouse
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*/
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bool setMouseControl(
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Controller::Type xtype, int xid, Controller::Type ytype, int yid) override;
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/**
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Sets the sensitivity for digital emulation of driving controlle movement
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using a keyboard.
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@param sensitivity Value from 1 to 20, with larger values causing
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more movement (10 represents the baseline)
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*/
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static void setSensitivity(int sensitivity);
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private:
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// Counter to iterate through the gray codes
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Int32 myCounter{0};
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// Index into the gray code table
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uInt32 myGrayIndex{0};
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// Y axis value from last yaxis event that was used to generate a new
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// gray code
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int myLastYaxis{0};
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// Pre-compute the events we care about based on given port
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// This will eliminate test for left or right port in update()
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Event::Type myCWEvent, myCCWEvent, myFireEvent,
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myXAxisValue, myYAxisValue;
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// Controller to emulate in normal mouse axis mode
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int myControlID{-1};
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// Controllers to emulate in 'specific' mouse axis mode
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int myControlIDX{-1}, myControlIDY{-1};
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// User-defined sensitivity; adjustable since end-users may prefer different
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// speeds
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static float SENSITIVITY;
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private:
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// Following constructors and assignment operators not supported
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Driving() = delete;
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Driving(const Driving&) = delete;
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Driving(Driving&&) = delete;
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Driving& operator=(const Driving&) = delete;
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Driving& operator=(Driving&&) = delete;
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};
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#endif
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