1 files changed, 89 insertions, 0 deletions
diff --git a/src/engine/input.h b/src/engine/input.h
new file mode 100644
index 00000000..168614c8
--- /dev/null
+++ b/src/engine/input.h
@@ -0,0 +1,89 @@
+#ifndef ENGINE_INPUT_H
+#define ENGINE_INPUT_H
+
+#include "kernel.h"
+
+extern const char g_aaKeyStrings[512][16];
+
+class IInput : public IInterface
+{
+	MACRO_INTERFACE("input", 0)
+public:
+	class CEvent
+	{
+	public:
+		int m_Flags;
+		int m_Unicode;
+		int m_Key;
+	};
+
+protected:
+	enum
+	{
+		INPUT_BUFFER_SIZE=32
+	};
+
+	// quick access to events
+	int m_NumEvents;
+	IInput::CEvent m_aInputEvents[INPUT_BUFFER_SIZE];
+
+	//quick access to input
+	struct
+	{
+		unsigned char m_Presses;
+		unsigned char m_Releases;
+	} m_aInputCount[2][1024];
+
+	unsigned char m_aInputState[2][1024];
+	int m_InputCurrent;
+
+	int KeyWasPressed(int Key) { return m_aInputState[m_InputCurrent^1][Key]; }
+
+public:	
+	enum
+	{
+		FLAG_PRESS=1,
+		FLAG_RELEASE=2,
+		FLAG_REPEAT=4
+	};
+
+	// events
+	int NumEvents() const { return m_NumEvents; }
+	void ClearEvents() { m_NumEvents = 0; }
+	CEvent GetEvent(int Index) const
+	{ 
+		if(Index < 0 || Index >= m_NumEvents)
+		{
+			IInput::CEvent e = {0,0};
+			return e;
+		}
+		return m_aInputEvents[Index];
+	}
+	
+	// keys
+	int KeyPressed(int Key) { return m_aInputState[m_InputCurrent][Key]; }
+	int KeyReleases(int Key) { return m_aInputCount[m_InputCurrent][Key].m_Releases; }
+	int KeyPresses(int Key) { return m_aInputCount[m_InputCurrent][Key].m_Presses; }
+	int KeyDown(int Key) { return KeyPressed(Key)&&!KeyWasPressed(Key); }
+	const char *KeyName(int Key) { return (Key >= 0 && Key < 512) ? g_aaKeyStrings[Key] : g_aaKeyStrings[0]; }
+	
+	//
+	virtual void MouseModeRelative() = 0;
+	virtual void MouseModeAbsolute() = 0;
+	virtual int MouseDoubleClick() = 0;
+	
+	virtual void MouseRelative(int *x, int *y) = 0;
+};
+
+
+class IEngineInput : public IInput
+{
+	MACRO_INTERFACE("engineinput", 0)
+public:
+	virtual void Init() = 0;
+	virtual void Update() = 0;
+};
+
+extern IEngineInput *CreateEngineInput();
+
+#endif