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public/shake.h

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+//========= Copyright Valve Corporation, All rights reserved. ============//
+//
+// Purpose: Network data for screen shake and screen fade.
+//
+// $NoKeywords: $
+//=============================================================================//
+
+#ifndef SHAKE_H
+#define SHAKE_H
+#ifdef _WIN32
+#pragma once
+#endif
+
+
+//
+// Commands for the screen shake effect.
+//
+
+struct ScreenShake_t
+{
+	int		command;
+	float	amplitude;
+	float	frequency;
+	float	duration;
+};
+
+enum ShakeCommand_t
+{
+	SHAKE_START = 0,		// Starts the screen shake for all players within the radius.
+	SHAKE_STOP,				// Stops the screen shake for all players within the radius.
+	SHAKE_AMPLITUDE,		// Modifies the amplitude of an active screen shake for all players within the radius.
+	SHAKE_FREQUENCY,		// Modifies the frequency of an active screen shake for all players within the radius.
+	SHAKE_START_RUMBLEONLY,	// Starts a shake effect that only rumbles the controller, no screen effect.
+	SHAKE_START_NORUMBLE,	// Starts a shake that does NOT rumble the controller.
+};
+
+
+//
+// Screen shake message.
+//
+extern int gmsgShake;
+
+// Fade in/out
+extern int gmsgFade;
+
+#define FFADE_IN			0x0001		// Just here so we don't pass 0 into the function
+#define FFADE_OUT			0x0002		// Fade out (not in)
+#define FFADE_MODULATE		0x0004		// Modulate (don't blend)
+#define FFADE_STAYOUT		0x0008		// ignores the duration, stays faded out until new ScreenFade message received
+#define FFADE_PURGE			0x0010		// Purges all other fades, replacing them with this one
+
+#define SCREENFADE_FRACBITS		9		// which leaves 16-this for the integer part
+// This structure is sent over the net to describe a screen fade event
+struct ScreenFade_t
+{
+	unsigned short 	duration;		// FIXED 16 bit, with SCREENFADE_FRACBITS fractional, seconds duration
+	unsigned short 	holdTime;		// FIXED 16 bit, with SCREENFADE_FRACBITS fractional, seconds duration until reset (fade & hold)
+	short			fadeFlags;		// flags
+	byte			r, g, b, a;		// fade to color ( max alpha )
+};
+
+
+#endif // SHAKE_H