| 1 | /* |
| 2 | * Copyright (C) 2008 Patrik Gornicz, Gornicz_P (at) hotmail (dot) com. |
| 3 | * |
| 4 | * This program is free software: you can redistribute it and/or modify |
| 5 | * it under the terms of the GNU General Public License as published by |
| 6 | * the Free Software Foundation, either version 3 of the License, or |
| 7 | * (at your option) any later version. |
| 8 | * |
| 9 | * This program is distributed in the hope that it will be useful, |
| 10 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 12 | * GNU General Public License for more details. |
| 13 | * |
| 14 | * You should have received a copy of the GNU General Public License |
| 15 | * along with this program. If not, see <http://www.gnu.org/licenses/>. |
| 16 | */ |
| 17 | |
| 18 | #include "entityManager.h" |
| 19 | #include "debug.h" |
| 20 | |
| 21 | #include <set> |
| 22 | #include <SDL/SDL.h> |
| 23 | |
| 24 | #include "Entities/Entity.h" |
| 25 | #include "Entities/Particle.h" |
| 26 | #include "Entities/PhysicsEntity.h" |
| 27 | |
| 28 | #include "collisionManager.h" |
| 29 | #include "effectManager.h" |
| 30 | |
| 31 | /// ***** Private Method Headers ***** |
| 32 | |
| 33 | void updateParticles(float); |
| 34 | void updatePhysics(float); |
| 35 | |
| 36 | /// ***** Private Variables ***** |
| 37 | |
| 38 | typedef std::set<Particle*> setPart; |
| 39 | setPart particles_To_Add; |
| 40 | setPart active_Particles; |
| 41 | setPart particles_To_Remove; |
| 42 | |
| 43 | typedef std::set<PhysicsEntity*> setPhys; |
| 44 | setPhys physics_To_Add; |
| 45 | setPhys active_Physics; |
| 46 | setPhys physics_To_Remove; |
| 47 | |
| 48 | SDL_mutex* particleSetLock = NULL; |
| 49 | SDL_mutex* physicsEntitySetLock = NULL; |
| 50 | |
| 51 | /// ***** Initializers/Cleaners ***** |
| 52 | |
| 53 | void manager::init() |
| 54 | { |
| 55 | particleSetLock = SDL_CreateMutex(); |
| 56 | physicsEntitySetLock = SDL_CreateMutex(); |
| 57 | |
| 58 | collision::init(); |
| 59 | } |
| 60 | void manager::clean() |
| 61 | { |
| 62 | collision::clean(); |
| 63 | |
| 64 | SDL_DestroyMutex(particleSetLock); |
| 65 | particleSetLock = NULL; |
| 66 | |
| 67 | SDL_DestroyMutex(physicsEntitySetLock); |
| 68 | physicsEntitySetLock = NULL; |
| 69 | } |
| 70 | |
| 71 | /// ***** Public Methods ***** |
| 72 | |
| 73 | void manager::add(Entity* e) |
| 74 | { |
| 75 | { |
| 76 | Particle* p = dynamic_cast<Particle*>(e); |
| 77 | if( p != 0 ) |
| 78 | { |
| 79 | particles_To_Add.insert(p); |
| 80 | return; |
| 81 | } |
| 82 | } |
| 83 | |
| 84 | { |
| 85 | PhysicsEntity* p = dynamic_cast<PhysicsEntity*>(e); |
| 86 | if( p != 0 ) |
| 87 | { |
| 88 | physics_To_Add.insert(p); |
| 89 | return; |
| 90 | } |
| 91 | } |
| 92 | |
| 93 | DPF(0, "ENTITY TYPE NOT SUPPORTED BY addEntity()!!"); |
| 94 | } |
| 95 | void manager::remove(Entity* e) |
| 96 | { |
| 97 | { |
| 98 | Particle* p = dynamic_cast<Particle*>(e); |
| 99 | if( p != 0 ) |
| 100 | { |
| 101 | particles_To_Remove.insert(p); |
| 102 | return; |
| 103 | } |
| 104 | } |
| 105 | |
| 106 | { |
| 107 | PhysicsEntity* p = dynamic_cast<PhysicsEntity*>(e); |
| 108 | if( p != 0 ) |
| 109 | { |
| 110 | physics_To_Remove.insert(p); |
| 111 | return; |
| 112 | } |
| 113 | } |
| 114 | |
| 115 | DPF(0, "ENTITY TYPE NOT SUPPORTED BY deleteEntity()!!"); |
| 116 | } |
| 117 | |
| 118 | void manager::handleInput() |
| 119 | { |
| 120 | effect::handleInput(); |
| 121 | } |
| 122 | void manager::update(float time_step) |
| 123 | { |
| 124 | effect::update(time_step); |
| 125 | |
| 126 | updateParticles(time_step); |
| 127 | updatePhysics(time_step); |
| 128 | } |
| 129 | void manager::draw() |
| 130 | { |
| 131 | SDL_mutexP( particleSetLock ); |
| 132 | // update active Particle*s |
| 133 | for( setPart::iterator it = active_Particles.begin(); |
| 134 | it != active_Particles.end(); |
| 135 | it++ ) |
| 136 | { |
| 137 | (*it)->draw(); |
| 138 | } |
| 139 | SDL_mutexV( particleSetLock ); |
| 140 | |
| 141 | SDL_mutexP( physicsEntitySetLock ); |
| 142 | // update active PhysicsEntity*s |
| 143 | for( setPhys::iterator it = active_Physics.begin(); |
| 144 | it != active_Physics.end(); |
| 145 | it++ ) |
| 146 | { |
| 147 | (*it)->draw(); |
| 148 | } |
| 149 | SDL_mutexV( physicsEntitySetLock ); |
| 150 | } |
| 151 | |
| 152 | /// ***** Private Methods ***** |
| 153 | |
| 154 | void updateParticles(float time_step) |
| 155 | { |
| 156 | SDL_mutexP( particleSetLock ); |
| 157 | // add new Particle*s to Active |
| 158 | for( setPart::iterator it = particles_To_Add.begin(); |
| 159 | it != particles_To_Add.end(); |
| 160 | it++ ) |
| 161 | { |
| 162 | active_Particles.insert(*it); |
| 163 | } |
| 164 | particles_To_Add.clear(); |
| 165 | |
| 166 | // remove dead Particle*s from Active |
| 167 | for( setPart::iterator it = particles_To_Remove.begin(); |
| 168 | it != particles_To_Remove.end(); |
| 169 | it++ ) |
| 170 | { |
| 171 | active_Particles.erase(*it); |
| 172 | } |
| 173 | particles_To_Remove.clear(); |
| 174 | SDL_mutexV( particleSetLock ); |
| 175 | |
| 176 | // update active Particle*s |
| 177 | for( setPart::iterator it = active_Particles.begin(); |
| 178 | it != active_Particles.end(); |
| 179 | it++ ) |
| 180 | { |
| 181 | (*it)->update(time_step); |
| 182 | } |
| 183 | } |
| 184 | void updatePhysics(float time_step) |
| 185 | { |
| 186 | SDL_mutexP( physicsEntitySetLock ); |
| 187 | // add new PhysicsEntity*s to Active |
| 188 | for( setPhys::iterator it = physics_To_Add.begin(); |
| 189 | it != physics_To_Add.end(); |
| 190 | it++ ) |
| 191 | { |
| 192 | active_Physics.insert(*it); |
| 193 | } |
| 194 | physics_To_Add.clear(); |
| 195 | |
| 196 | // remove dead PhysicsEntity*s from Active |
| 197 | for( setPhys::iterator it = physics_To_Remove.begin(); |
| 198 | it != physics_To_Remove.end(); |
| 199 | it++ ) |
| 200 | { |
| 201 | active_Physics.erase(*it); |
| 202 | } |
| 203 | physics_To_Remove.clear(); |
| 204 | SDL_mutexV( physicsEntitySetLock ); |
| 205 | |
| 206 | // apply collision math |
| 207 | collision::update(active_Physics); |
| 208 | |
| 209 | // update active PhysicsEntity*s |
| 210 | for( setPhys::iterator it = active_Physics.begin(); |
| 211 | it != active_Physics.end(); |
| 212 | it++ ) |
| 213 | { |
| 214 | (*it)->update(time_step); |
| 215 | } |
| 216 | } |