src/player.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 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 #include "player.h"
  21 #include "constants.h"
  22 #include "gamedef.h"
  23 #include "connection.h" // PEER_ID_INEXISTENT
  24 #include "settings.h"
  25 #include "content_sao.h"
  26 #include "util/numeric.h"
  27
  28 Player::Player(IGameDef *gamedef):
  29         touching_ground(false),
  30         in_liquid(false),
  31         in_liquid_stable(false),
  32         liquid_viscosity(0),
  33         is_climbing(false),
  34         swimming_vertical(false),
  35         camera_barely_in_ceiling(false),
  36         inventory(gamedef->idef()),
  37         hp(PLAYER_MAX_HP),
  38         peer_id(PEER_ID_INEXISTENT),
  39 // protected
  40         m_gamedef(gamedef),
  41         m_pitch(0),
  42         m_yaw(0),
  43         m_speed(0,0,0),
  44         m_position(0,0,0)
  45 {
  46         updateName("<not set>");
  47         inventory.clear();
  48         inventory.addList("main", PLAYER_INVENTORY_SIZE);
  49         InventoryList *craft = inventory.addList("craft", 9);
  50         craft->setWidth(3);
  51         inventory.addList("craftpreview", 1);
  52         inventory.addList("craftresult", 1);
  53
  54         // Can be redefined via Lua
  55         inventory_formspec =  "size[8,7.5]"
  56                 //"image[1,0.6;1,2;player.png]"
  57                 "list[current_player;main;0,3.5;8,4;]"
  58                 "list[current_player;craft;3,0;3,3;]"
  59                 "list[current_player;craftpreview;7,1;1,1;]";
  60
  61         // Initialize movement settings at default values, so movement can work if the server fails to send them
  62         movement_acceleration_default = 3 * BS;
  63         movement_acceleration_air = 2 * BS;
  64         movement_acceleration_fast = 10 * BS;
  65         movement_speed_walk = 4 * BS;
  66         movement_speed_crouch = 1.35 * BS;
  67         movement_speed_fast = 20 * BS;
  68         movement_speed_climb = 2 * BS;
  69         movement_speed_jump = 6.5 * BS;
  70         movement_liquid_fluidity = 1 * BS;
  71         movement_liquid_fluidity_smooth = 0.5 * BS;
  72         movement_liquid_sink = 10 * BS;
  73         movement_gravity = 9.81 * BS;
  74 }
  75
  76 Player::~Player()
  77 {
  78 }
  79
  80 // Horizontal acceleration (X and Z), Y direction is ignored
  81 void Player::accelerateHorizontal(v3f target_speed, f32 max_increase)
  82 {
  83         if(max_increase == 0)
  84                 return;
  85
  86         v3f d_wanted = target_speed - m_speed;
  87         d_wanted.Y = 0;
  88         f32 dl = d_wanted.getLength();
  89         if(dl > max_increase)
  90                 dl = max_increase;
  91
  92         v3f d = d_wanted.normalize() * dl;
  93
  94         m_speed.X += d.X;
  95         m_speed.Z += d.Z;
  96
  97 #if 0 // old code
  98         if(m_speed.X < target_speed.X - max_increase)
  99                 m_speed.X += max_increase;
 100         else if(m_speed.X > target_speed.X + max_increase)
 101                 m_speed.X -= max_increase;
 102         else if(m_speed.X < target_speed.X)
 103                 m_speed.X = target_speed.X;
 104         else if(m_speed.X > target_speed.X)
 105                 m_speed.X = target_speed.X;
 106
 107         if(m_speed.Z < target_speed.Z - max_increase)
 108                 m_speed.Z += max_increase;
 109         else if(m_speed.Z > target_speed.Z + max_increase)
 110                 m_speed.Z -= max_increase;
 111         else if(m_speed.Z < target_speed.Z)
 112                 m_speed.Z = target_speed.Z;
 113         else if(m_speed.Z > target_speed.Z)
 114                 m_speed.Z = target_speed.Z;
 115 #endif
 116 }
 117
 118 // Vertical acceleration (Y), X and Z directions are ignored
 119 void Player::accelerateVertical(v3f target_speed, f32 max_increase)
 120 {
 121         if(max_increase == 0)
 122                 return;
 123
 124         f32 d_wanted = target_speed.Y - m_speed.Y;
 125         if(d_wanted > max_increase)
 126                 d_wanted = max_increase;
 127         else if(d_wanted < -max_increase)
 128                 d_wanted = -max_increase;
 129
 130         m_speed.Y += d_wanted;
 131
 132 #if 0 // old code
 133         if(m_speed.Y < target_speed.Y - max_increase)
 134                 m_speed.Y += max_increase;
 135         else if(m_speed.Y > target_speed.Y + max_increase)
 136                 m_speed.Y -= max_increase;
 137         else if(m_speed.Y < target_speed.Y)
 138                 m_speed.Y = target_speed.Y;
 139         else if(m_speed.Y > target_speed.Y)
 140                 m_speed.Y = target_speed.Y;
 141 #endif
 142 }
 143
 144 v3s16 Player::getLightPosition() const
 145 {
 146         return floatToInt(m_position + v3f(0,BS+BS/2,0), BS);
 147 }
 148
 149 void Player::serialize(std::ostream &os)
 150 {
 151         // Utilize a Settings object for storing values
 152         Settings args;
 153         args.setS32("version", 1);
 154         args.set("name", m_name);
 155         //args.set("password", m_password);
 156         args.setFloat("pitch", m_pitch);
 157         args.setFloat("yaw", m_yaw);
 158         args.setV3F("position", m_position);
 159         args.setS32("hp", hp);
 160
 161         args.writeLines(os);
 162
 163         os<<"PlayerArgsEnd\n";
 164
 165         inventory.serialize(os);
 166 }
 167
 168 void Player::deSerialize(std::istream &is)
 169 {
 170         Settings args;
 171
 172         for(;;)
 173         {
 174                 if(is.eof())
 175                         throw SerializationError
 176                                         ("Player::deSerialize(): PlayerArgsEnd not found");
 177                 std::string line;
 178                 std::getline(is, line);
 179                 std::string trimmedline = trim(line);
 180                 if(trimmedline == "PlayerArgsEnd")
 181                         break;
 182                 args.parseConfigLine(line);
 183         }
 184
 185         //args.getS32("version"); // Version field value not used
 186         std::string name = args.get("name");
 187         updateName(name.c_str());
 188         setPitch(args.getFloat("pitch"));
 189         setYaw(args.getFloat("yaw"));
 190         setPosition(args.getV3F("position"));
 191         try{
 192                 hp = args.getS32("hp");
 193         }catch(SettingNotFoundException &e){
 194                 hp = 20;
 195         }
 196
 197         inventory.deSerialize(is);
 198
 199         if(inventory.getList("craftpreview") == NULL)
 200         {
 201                 // Convert players without craftpreview
 202                 inventory.addList("craftpreview", 1);
 203
 204                 bool craftresult_is_preview = true;
 205                 if(args.exists("craftresult_is_preview"))
 206                         craftresult_is_preview = args.getBool("craftresult_is_preview");
 207                 if(craftresult_is_preview)
 208                 {
 209                         // Clear craftresult
 210                         inventory.getList("craftresult")->changeItem(0, ItemStack());
 211                 }
 212         }
 213 }
 214
 215 /*
 216         RemotePlayer
 217 */
 218
 219
 220
 221
 222
 223 void RemotePlayer::setPosition(const v3f &position)
 224 {
 225         Player::setPosition(position);
 226         if(m_sao)
 227                 m_sao->setBasePosition(position);
 228 }