135 lines
2.8 KiB
C++
135 lines
2.8 KiB
C++
// Copyright (c) 2012-2021 Wojciech Figat. All rights reserved.
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#pragma once
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#include "Engine/Core/Math/Vector2.h"
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#include "Engine/Core/Collections/Array.h"
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#include "Engine/Scripting/ScriptingObject.h"
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#include "Enums.h"
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#include "KeyboardKeys.h"
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/// <summary>
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/// Base class for all input device objects.
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/// </summary>
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API_CLASS(Abstract, NoSpawn) class FLAXENGINE_API InputDevice : public PersistentScriptingObject
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{
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DECLARE_SCRIPTING_TYPE_NO_SPAWN(InputDevice);
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public:
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enum class EventType
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{
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Char,
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KeyDown,
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KeyUp,
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MouseDown,
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MouseUp,
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MouseDoubleClick,
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MouseWheel,
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MouseMove,
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MouseLeave,
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TouchDown,
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TouchMove,
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TouchUp,
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};
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struct Event
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{
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EventType Type;
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Window* Target;
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union
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{
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struct
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{
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Char Char;
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} CharData;
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struct
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{
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KeyboardKeys Key;
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} KeyData;
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struct
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{
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MouseButton Button;
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Vector2 Position;
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} MouseData;
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struct
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{
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float WheelDelta;
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Vector2 Position;
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} MouseWheelData;
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struct
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{
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Vector2 Position;
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int32 PointerId;
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} TouchData;
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};
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Event()
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{
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}
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Event(const Event& e)
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{
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Platform::MemoryCopy(this, &e, sizeof(Event));
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}
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};
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typedef Array<Event, InlinedAllocation<32>> EventQueue;
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protected:
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String _name;
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EventQueue _queue;
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explicit InputDevice(const SpawnParams& params, const StringView& name)
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: PersistentScriptingObject(params)
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, _name(name)
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{
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}
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public:
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/// <summary>
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/// Gets the name.
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/// </summary>
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API_PROPERTY() FORCE_INLINE const String& GetName() const
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{
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return _name;
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}
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/// <summary>
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/// Resets the input device state. Called when application looses focus.
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/// </summary>
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virtual void ResetState()
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{
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_queue.Clear();
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}
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/// <summary>
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/// Captures the input since the last call and triggers the input events.
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/// </summary>
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/// <param name="queue">The input events queue.</param>
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/// <returns>True if device has been disconnected, otherwise false.<returns>
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virtual bool Update(EventQueue& queue)
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{
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if (UpdateState())
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return true;
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queue.Add(_queue);
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_queue.Clear();
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return false;
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}
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/// <summary>
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/// Updates only the current state of the device.
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/// </summary>
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/// <returns>True if device has been disconnected, otherwise false.<returns>
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virtual bool UpdateState()
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{
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return false;
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}
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};
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