1 /* 2 Minetest 3 Copyright (C) 2013 celeron55, Perttu Ahola <celeron55@gmail.com> 4 5 This program is free software; you can redistribute it and/or modify 6 it under the terms of the GNU Lesser General Public License as published by 7 the Free Software Foundation; either version 2.1 of the License, or 8 (at your option) any later version. 9 10 This program is distributed in the hope that it will be useful, 11 but WITHOUT ANY WARRANTY; without even the implied warranty of 12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 13 GNU Lesser General Public License for more details. 14 15 You should have received a copy of the GNU Lesser General Public License along 16 with this program; if not, write to the Free Software Foundation, Inc., 17 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. 18 */ 19 20 #pragma once 21 22 #include "irrlichttypes.h" 23 24 class MtEvent 25 { 26 public: 27 enum Type : u8 28 { 29 VIEW_BOBBING_STEP = 0, 30 CAMERA_PUNCH_LEFT, 31 CAMERA_PUNCH_RIGHT, 32 PLAYER_FALLING_DAMAGE, 33 PLAYER_DAMAGE, 34 NODE_DUG, 35 PLAYER_JUMP, 36 PLAYER_REGAIN_GROUND, 37 TYPE_MAX, 38 }; 39 40 virtual ~MtEvent() = default; 41 virtual Type getType() const = 0; 42 }; 43 44 // An event with no parameters and customizable name 45 class SimpleTriggerEvent : public MtEvent 46 { 47 Type type; 48 49 public: SimpleTriggerEvent(Type type)50 SimpleTriggerEvent(Type type) : type(type) {} getType()51 Type getType() const override { return type; } 52 }; 53 54 class MtEventReceiver 55 { 56 public: 57 virtual ~MtEventReceiver() = default; 58 virtual void onEvent(MtEvent *e) = 0; 59 }; 60 61 typedef void (*event_receive_func)(MtEvent *e, void *data); 62 63 class MtEventManager 64 { 65 public: 66 virtual ~MtEventManager() = default; 67 virtual void put(MtEvent *e) = 0; 68 virtual void reg(MtEvent::Type type, event_receive_func f, void *data) = 0; 69 // If data==NULL, every occurence of f is deregistered. 70 virtual void dereg(MtEvent::Type type, event_receive_func f, void *data) = 0; 71 }; 72