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         // Movement overrides are multipliers and must be 1 by default
  76         physics_override_speed = 1;
  77         physics_override_jump = 1;
  78         physics_override_gravity = 1;
  79 }
  80
  81 Player::~Player()
  82 {
  83 }
  84
  85 // Horizontal acceleration (X and Z), Y direction is ignored
  86 void Player::accelerateHorizontal(v3f target_speed, f32 max_increase)
  87 {
  88         if(max_increase == 0)
  89                 return;
  90
  91         v3f d_wanted = target_speed - m_speed;
  92         d_wanted.Y = 0;
  93         f32 dl = d_wanted.getLength();
  94         if(dl > max_increase)
  95                 dl = max_increase;
  96
  97         v3f d = d_wanted.normalize() * dl;
  98
  99         m_speed.X += d.X;
 100         m_speed.Z += d.Z;
 101
 102 #if 0 // old code
 103         if(m_speed.X < target_speed.X - max_increase)
 104                 m_speed.X += max_increase;
 105         else if(m_speed.X > target_speed.X + max_increase)
 106                 m_speed.X -= max_increase;
 107         else if(m_speed.X < target_speed.X)
 108                 m_speed.X = target_speed.X;
 109         else if(m_speed.X > target_speed.X)
 110                 m_speed.X = target_speed.X;
 111
 112         if(m_speed.Z < target_speed.Z - max_increase)
 113                 m_speed.Z += max_increase;
 114         else if(m_speed.Z > target_speed.Z + max_increase)
 115                 m_speed.Z -= max_increase;
 116         else if(m_speed.Z < target_speed.Z)
 117                 m_speed.Z = target_speed.Z;
 118         else if(m_speed.Z > target_speed.Z)
 119                 m_speed.Z = target_speed.Z;
 120 #endif
 121 }
 122
 123 // Vertical acceleration (Y), X and Z directions are ignored
 124 void Player::accelerateVertical(v3f target_speed, f32 max_increase)
 125 {
 126         if(max_increase == 0)
 127                 return;
 128
 129         f32 d_wanted = target_speed.Y - m_speed.Y;
 130         if(d_wanted > max_increase)
 131                 d_wanted = max_increase;
 132         else if(d_wanted < -max_increase)
 133                 d_wanted = -max_increase;
 134
 135         m_speed.Y += d_wanted;
 136
 137 #if 0 // old code
 138         if(m_speed.Y < target_speed.Y - max_increase)
 139                 m_speed.Y += max_increase;
 140         else if(m_speed.Y > target_speed.Y + max_increase)
 141                 m_speed.Y -= max_increase;
 142         else if(m_speed.Y < target_speed.Y)
 143                 m_speed.Y = target_speed.Y;
 144         else if(m_speed.Y > target_speed.Y)
 145                 m_speed.Y = target_speed.Y;
 146 #endif
 147 }
 148
 149 v3s16 Player::getLightPosition() const
 150 {
 151         return floatToInt(m_position + v3f(0,BS+BS/2,0), BS);
 152 }
 153
 154 void Player::serialize(std::ostream &os)
 155 {
 156         // Utilize a Settings object for storing values
 157         Settings args;
 158         args.setS32("version", 1);
 159         args.set("name", m_name);
 160         //args.set("password", m_password);
 161         args.setFloat("pitch", m_pitch);
 162         args.setFloat("yaw", m_yaw);
 163         args.setV3F("position", m_position);
 164         args.setS32("hp", hp);
 165
 166         args.writeLines(os);
 167
 168         os<<"PlayerArgsEnd\n";
 169
 170         inventory.serialize(os);
 171 }
 172
 173 void Player::deSerialize(std::istream &is)
 174 {
 175         Settings args;
 176
 177         for(;;)
 178         {
 179                 if(is.eof())
 180                         throw SerializationError
 181                                         ("Player::deSerialize(): PlayerArgsEnd not found");
 182                 std::string line;
 183                 std::getline(is, line);
 184                 std::string trimmedline = trim(line);
 185                 if(trimmedline == "PlayerArgsEnd")
 186                         break;
 187                 args.parseConfigLine(line);
 188         }
 189
 190         //args.getS32("version"); // Version field value not used
 191         std::string name = args.get("name");
 192         updateName(name.c_str());
 193         setPitch(args.getFloat("pitch"));
 194         setYaw(args.getFloat("yaw"));
 195         setPosition(args.getV3F("position"));
 196         try{
 197                 hp = args.getS32("hp");
 198         }catch(SettingNotFoundException &e){
 199                 hp = 20;
 200         }
 201
 202         inventory.deSerialize(is);
 203
 204         if(inventory.getList("craftpreview") == NULL)
 205         {
 206                 // Convert players without craftpreview
 207                 inventory.addList("craftpreview", 1);
 208
 209                 bool craftresult_is_preview = true;
 210                 if(args.exists("craftresult_is_preview"))
 211                         craftresult_is_preview = args.getBool("craftresult_is_preview");
 212                 if(craftresult_is_preview)
 213                 {
 214                         // Clear craftresult
 215                         inventory.getList("craftresult")->changeItem(0, ItemStack());
 216                 }
 217         }
 218 }
 219
 220 /*
 221         RemotePlayer
 222 */
 223
 224
 225
 226
 227
 228 void RemotePlayer::setPosition(const v3f &position)
 229 {
 230         Player::setPosition(position);
 231         if(m_sao)
 232                 m_sao->setBasePosition(position);
 233 }