Move mtevent.h to src/client/

src/client/mtevent.h

@@ -0,0 +1,71 @@
+/*
+Minetest
+Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com>
+
+This program is free software; you can redistribute it and/or modify
+it under the terms of the GNU Lesser General Public License as published by
+the Free Software Foundation; either version 2.1 of the License, or
+(at your option) any later version.
+
+This program is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+GNU Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public License along
+with this program; if not, write to the Free Software Foundation, Inc.,
+51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+*/
+
+#pragma once
+
+#include "irrlichttypes.h"
+
+class MtEvent
+{
+public:
+	enum Type : u8
+	{
+		VIEW_BOBBING_STEP = 0,
+		CAMERA_PUNCH_LEFT,
+		CAMERA_PUNCH_RIGHT,
+		PLAYER_FALLING_DAMAGE,
+		PLAYER_DAMAGE,
+		NODE_DUG,
+		PLAYER_JUMP,
+		PLAYER_REGAIN_GROUND,
+		TYPE_MAX,
+	};
+
+	virtual ~MtEvent() = default;
+	virtual Type getType() const = 0;
+};
+
+// An event with no parameters and customizable name
+class SimpleTriggerEvent : public MtEvent
+{
+	Type type;
+
+public:
+	SimpleTriggerEvent(Type type) : type(type) {}
+	Type getType() const override { return type; }
+};
+
+class MtEventReceiver
+{
+public:
+	virtual ~MtEventReceiver() = default;
+	virtual void onEvent(MtEvent *e) = 0;
+};
+
+typedef void (*event_receive_func)(MtEvent *e, void *data);
+
+class MtEventManager
+{
+public:
+	virtual ~MtEventManager() = default;
+	virtual void put(MtEvent *e) = 0;
+	virtual void reg(MtEvent::Type type, event_receive_func f, void *data) = 0;
+	// If data==NULL, every occurrence of f is deregistered.
+	virtual void dereg(MtEvent::Type type, event_receive_func f, void *data) = 0;
+};