| 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 | |
| 20 | #include <bear/debug.h> |
| 21 | #include <bear/Lock.h> |
| 22 | #include <bear/Autolock.h> |
| 23 | using namespace bear; |
| 24 | |
| 25 | #include <set> |
| 26 | #include <SDL/SDL.h> |
| 27 | |
| 28 | #include "Entities/Entity.h" |
| 29 | #include "Entities/Particle.h" |
| 30 | #include "Entities/PhysicsEntity.h" |
| 31 | |
| 32 | #include "collisionManager.h" |
| 33 | #include "effectManager.h" |
| 34 | |
| 35 | /// ***** Private Method Headers ***** |
| 36 | |
| 37 | static void updateParticles(float); |
| 38 | static void updatePhysics(float); |
| 39 | static void addOrRemoveParticles(); |
| 40 | static void addOrRemovePhysics(); |
| 41 | |
| 42 | /// ***** Private Variables ***** |
| 43 | |
| 44 | typedef std::set<Particle*> setPart; |
| 45 | static setPart particles_To_Add; |
| 46 | static setPart active_Particles; |
| 47 | static setPart particles_To_Remove; |
| 48 | |
| 49 | typedef std::set<PhysicsEntity*> setPhys; |
| 50 | static setPhys physics_To_Add; |
| 51 | static setPhys active_Physics; |
| 52 | static setPhys physics_To_Remove; |
| 53 | |
| 54 | static Lock muSetPart; |
| 55 | static Lock muSetPhys; |
| 56 | |
| 57 | /// ***** Initializers/Cleaners ***** |
| 58 | |
| 59 | void manager::init() |
| 60 | { |
| 61 | muSetPart.init(); |
| 62 | muSetPhys.init(); |
| 63 | |
| 64 | collision::init(); |
| 65 | } |
| 66 | void manager::clean() |
| 67 | { |
| 68 | collision::clean(); |
| 69 | |
| 70 | muSetPhys.fini(); |
| 71 | muSetPart.fini(); |
| 72 | } |
| 73 | |
| 74 | /// ***** Public Methods ***** |
| 75 | |
| 76 | void manager::add(Entity* pe) |
| 77 | { |
| 78 | DASSERT(pe != NULL); |
| 79 | |
| 80 | { |
| 81 | Particle* pp = dynamic_cast<Particle*>(pe); |
| 82 | if( pp != NULL ) |
| 83 | { |
| 84 | particles_To_Add.insert(pp); |
| 85 | return; |
| 86 | } |
| 87 | } |
| 88 | |
| 89 | { |
| 90 | PhysicsEntity* ppe = dynamic_cast<PhysicsEntity*>(pe); |
| 91 | if( ppe != NULL ) |
| 92 | { |
| 93 | physics_To_Add.insert(ppe); |
| 94 | return; |
| 95 | } |
| 96 | } |
| 97 | |
| 98 | DPF(0, "ENTITY TYPE NOT SUPPORTED BY addEntity()!!"); |
| 99 | } |
| 100 | void manager::remove(Entity* pe) |
| 101 | { |
| 102 | DASSERT(pe != NULL); |
| 103 | |
| 104 | { |
| 105 | Autolock lock( &muSetPart ); |
| 106 | Particle* p = dynamic_cast<Particle*>(pe); |
| 107 | if( p != NULL ) |
| 108 | { |
| 109 | particles_To_Remove.insert(p); |
| 110 | return; |
| 111 | } |
| 112 | } |
| 113 | |
| 114 | { |
| 115 | Autolock lock( &muSetPhys ); |
| 116 | PhysicsEntity* ppe = dynamic_cast<PhysicsEntity*>(pe); |
| 117 | if( ppe != NULL ) |
| 118 | { |
| 119 | physics_To_Remove.insert(ppe); |
| 120 | return; |
| 121 | } |
| 122 | } |
| 123 | |
| 124 | DPF(0, "ENTITY TYPE NOT SUPPORTED BY deleteEntity()!!"); |
| 125 | } |
| 126 | |
| 127 | void manager::handleInput() |
| 128 | { |
| 129 | effect::handleInput(); |
| 130 | } |
| 131 | void manager::update(float time_step) |
| 132 | { |
| 133 | effect::update(time_step); |
| 134 | |
| 135 | updateParticles(time_step); |
| 136 | updatePhysics(time_step); |
| 137 | } |
| 138 | void manager::draw() |
| 139 | { |
| 140 | { |
| 141 | Autolock lock( &muSetPart ); |
| 142 | |
| 143 | addOrRemoveParticles(); |
| 144 | |
| 145 | // draw active Particle*s |
| 146 | for( setPart::iterator it = active_Particles.begin(); |
| 147 | it != active_Particles.end(); |
| 148 | it++ ) |
| 149 | { |
| 150 | (*it)->draw(); |
| 151 | } |
| 152 | } |
| 153 | |
| 154 | { |
| 155 | Autolock lock( &muSetPhys ); |
| 156 | |
| 157 | addOrRemovePhysics(); |
| 158 | |
| 159 | // draw active PhysicsEntity*s |
| 160 | for( setPhys::iterator it = active_Physics.begin(); |
| 161 | it != active_Physics.end(); |
| 162 | it++ ) |
| 163 | { |
| 164 | (*it)->draw(); |
| 165 | } |
| 166 | } |
| 167 | } |
| 168 | |
| 169 | /// ***** Private Methods ***** |
| 170 | |
| 171 | void updateParticles(float time_step) |
| 172 | { |
| 173 | addOrRemoveParticles(); |
| 174 | |
| 175 | // update active Particle*s |
| 176 | for( setPart::iterator it = active_Particles.begin(); |
| 177 | it != active_Particles.end(); |
| 178 | it++ ) |
| 179 | { |
| 180 | (*it)->update(time_step); |
| 181 | } |
| 182 | } |
| 183 | void updatePhysics(float time_step) |
| 184 | { |
| 185 | addOrRemovePhysics(); |
| 186 | |
| 187 | // apply collision math |
| 188 | collision::update(active_Physics); |
| 189 | |
| 190 | // update active PhysicsEntity*s |
| 191 | for( setPhys::iterator it = active_Physics.begin(); |
| 192 | it != active_Physics.end(); |
| 193 | it++ ) |
| 194 | { |
| 195 | (*it)->update(time_step); |
| 196 | } |
| 197 | } |
| 198 | void addOrRemoveParticles() |
| 199 | { |
| 200 | Autolock lock( &muSetPart ); |
| 201 | |
| 202 | // add new Particle*s to Active |
| 203 | for( setPart::iterator it = particles_To_Add.begin(); |
| 204 | it != particles_To_Add.end(); |
| 205 | it++ ) |
| 206 | { |
| 207 | active_Particles.insert(*it); |
| 208 | } |
| 209 | particles_To_Add.clear(); |
| 210 | |
| 211 | // remove dead Particle*s from Active |
| 212 | for( setPart::iterator it = particles_To_Remove.begin(); |
| 213 | it != particles_To_Remove.end(); |
| 214 | it++ ) |
| 215 | { |
| 216 | active_Particles.erase(*it); |
| 217 | } |
| 218 | particles_To_Remove.clear(); |
| 219 | } |
| 220 | void addOrRemovePhysics() |
| 221 | { |
| 222 | Autolock lock( &muSetPhys ); |
| 223 | |
| 224 | // add new PhysicsEntity*s to Active |
| 225 | for( setPhys::iterator it = physics_To_Add.begin(); |
| 226 | it != physics_To_Add.end(); |
| 227 | it++ ) |
| 228 | { |
| 229 | active_Physics.insert(*it); |
| 230 | } |
| 231 | physics_To_Add.clear(); |
| 232 | |
| 233 | // remove dead PhysicsEntity*s from Active |
| 234 | for( setPhys::iterator it = physics_To_Remove.begin(); |
| 235 | it != physics_To_Remove.end(); |
| 236 | it++ ) |
| 237 | { |
| 238 | active_Physics.erase(*it); |
| 239 | } |
| 240 | physics_To_Remove.clear(); |
| 241 | } |