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 "hud.h"
  22 #include "constants.h"
  23 #include "gamedef.h"
  24 #include "connection.h" // PEER_ID_INEXISTENT
  25 #include "settings.h"
  26 #include "content_sao.h"
  27 #include "util/numeric.h"
  28
  29 Player::Player(IGameDef *gamedef):
  30         touching_ground(false),
  31         in_liquid(false),
  32         in_liquid_stable(false),
  33         liquid_viscosity(0),
  34         is_climbing(false),
  35         swimming_vertical(false),
  36         camera_barely_in_ceiling(false),
  37         inventory(gamedef->idef()),
  38         hp(PLAYER_MAX_HP),
  39         breath(-1),
  40         peer_id(PEER_ID_INEXISTENT),
  41 // protected
  42         m_gamedef(gamedef),
  43         m_pitch(0),
  44         m_yaw(0),
  45         m_speed(0,0,0),
  46         m_position(0,0,0),
  47         m_collisionbox(-BS*0.30,0.0,-BS*0.30,BS*0.30,BS*1.55,BS*0.30),
  48         m_last_pitch(0),
  49         m_last_yaw(0),
  50         m_last_pos(0,0,0),
  51         m_last_hp(PLAYER_MAX_HP),
  52         m_last_inventory(gamedef->idef())
  53 {
  54         updateName("<not set>");
  55         inventory.clear();
  56         inventory.addList("main", PLAYER_INVENTORY_SIZE);
  57         InventoryList *craft = inventory.addList("craft", 9);
  58         craft->setWidth(3);
  59         inventory.addList("craftpreview", 1);
  60         inventory.addList("craftresult", 1);
  61         m_last_inventory = inventory;
  62
  63         // Can be redefined via Lua
  64         inventory_formspec = "size[8,7.5]"
  65                 //"image[1,0.6;1,2;player.png]"
  66                 "list[current_player;main;0,3.5;8,4;]"
  67                 "list[current_player;craft;3,0;3,3;]"
  68                 "list[current_player;craftpreview;7,1;1,1;]";
  69
  70         // Initialize movement settings at default values, so movement can work if the server fails to send them
  71         movement_acceleration_default   = 3    * BS;
  72         movement_acceleration_air       = 2    * BS;
  73         movement_acceleration_fast      = 10   * BS;
  74         movement_speed_walk             = 4    * BS;
  75         movement_speed_crouch           = 1.35 * BS;
  76         movement_speed_fast             = 20   * BS;
  77         movement_speed_climb            = 2    * BS;
  78         movement_speed_jump             = 6.5  * BS;
  79         movement_liquid_fluidity        = 1    * BS;
  80         movement_liquid_fluidity_smooth = 0.5  * BS;
  81         movement_liquid_sink            = 10   * BS;
  82         movement_gravity                = 9.81 * BS;
  83
  84         // Movement overrides are multipliers and must be 1 by default
  85         physics_override_speed   = 1;
  86         physics_override_jump    = 1;
  87         physics_override_gravity = 1;
  88
  89         hud_flags = HUD_FLAG_HOTBAR_VISIBLE | HUD_FLAG_HEALTHBAR_VISIBLE |
  90                          HUD_FLAG_CROSSHAIR_VISIBLE | HUD_FLAG_WIELDITEM_VISIBLE |
  91                          HUD_FLAG_BREATHBAR_VISIBLE;
  92
  93         hud_hotbar_itemcount = HUD_HOTBAR_ITEMCOUNT_DEFAULT;
  94 }
  95
  96 Player::~Player()
  97 {
  98 }
  99
 100 // Horizontal acceleration (X and Z), Y direction is ignored
 101 void Player::accelerateHorizontal(v3f target_speed, f32 max_increase)
 102 {
 103         if(max_increase == 0)
 104                 return;
 105
 106         v3f d_wanted = target_speed - m_speed;
 107         d_wanted.Y = 0;
 108         f32 dl = d_wanted.getLength();
 109         if(dl > max_increase)
 110                 dl = max_increase;
 111
 112         v3f d = d_wanted.normalize() * dl;
 113
 114         m_speed.X += d.X;
 115         m_speed.Z += d.Z;
 116
 117 #if 0 // old code
 118         if(m_speed.X < target_speed.X - max_increase)
 119                 m_speed.X += max_increase;
 120         else if(m_speed.X > target_speed.X + max_increase)
 121                 m_speed.X -= max_increase;
 122         else if(m_speed.X < target_speed.X)
 123                 m_speed.X = target_speed.X;
 124         else if(m_speed.X > target_speed.X)
 125                 m_speed.X = target_speed.X;
 126
 127         if(m_speed.Z < target_speed.Z - max_increase)
 128                 m_speed.Z += max_increase;
 129         else if(m_speed.Z > target_speed.Z + max_increase)
 130                 m_speed.Z -= max_increase;
 131         else if(m_speed.Z < target_speed.Z)
 132                 m_speed.Z = target_speed.Z;
 133         else if(m_speed.Z > target_speed.Z)
 134                 m_speed.Z = target_speed.Z;
 135 #endif
 136 }
 137
 138 // Vertical acceleration (Y), X and Z directions are ignored
 139 void Player::accelerateVertical(v3f target_speed, f32 max_increase)
 140 {
 141         if(max_increase == 0)
 142                 return;
 143
 144         f32 d_wanted = target_speed.Y - m_speed.Y;
 145         if(d_wanted > max_increase)
 146                 d_wanted = max_increase;
 147         else if(d_wanted < -max_increase)
 148                 d_wanted = -max_increase;
 149
 150         m_speed.Y += d_wanted;
 151
 152 #if 0 // old code
 153         if(m_speed.Y < target_speed.Y - max_increase)
 154                 m_speed.Y += max_increase;
 155         else if(m_speed.Y > target_speed.Y + max_increase)
 156                 m_speed.Y -= max_increase;
 157         else if(m_speed.Y < target_speed.Y)
 158                 m_speed.Y = target_speed.Y;
 159         else if(m_speed.Y > target_speed.Y)
 160                 m_speed.Y = target_speed.Y;
 161 #endif
 162 }
 163
 164 v3s16 Player::getLightPosition() const
 165 {
 166         return floatToInt(m_position + v3f(0,BS+BS/2,0), BS);
 167 }
 168
 169 void Player::serialize(std::ostream &os)
 170 {
 171         // Utilize a Settings object for storing values
 172         Settings args;
 173         args.setS32("version", 1);
 174         args.set("name", m_name);
 175         //args.set("password", m_password);
 176         args.setFloat("pitch", m_pitch);
 177         args.setFloat("yaw", m_yaw);
 178         args.setV3F("position", m_position);
 179         args.setS32("hp", hp);
 180
 181         args.writeLines(os);
 182
 183         os<<"PlayerArgsEnd\n";
 184
 185         inventory.serialize(os);
 186 }
 187
 188 void Player::deSerialize(std::istream &is, std::string playername)
 189 {
 190         Settings args;
 191
 192         for(;;)
 193         {
 194                 if(is.eof())
 195                         throw SerializationError
 196                                         (("Player::deSerialize(): PlayerArgsEnd of player \"" + playername + "\" not found").c_str());
 197                 std::string line;
 198                 std::getline(is, line);
 199                 std::string trimmedline = trim(line);
 200                 if(trimmedline == "PlayerArgsEnd")
 201                         break;
 202                 args.parseConfigLine(line);
 203         }
 204
 205         //args.getS32("version"); // Version field value not used
 206         std::string name = args.get("name");
 207         updateName(name.c_str());
 208         setPitch(args.getFloat("pitch"));
 209         setYaw(args.getFloat("yaw"));
 210         setPosition(args.getV3F("position"));
 211         try{
 212                 hp = args.getS32("hp");
 213         }catch(SettingNotFoundException &e){
 214                 hp = 20;
 215         }
 216
 217         inventory.deSerialize(is);
 218
 219         if(inventory.getList("craftpreview") == NULL)
 220         {
 221                 // Convert players without craftpreview
 222                 inventory.addList("craftpreview", 1);
 223
 224                 bool craftresult_is_preview = true;
 225                 if(args.exists("craftresult_is_preview"))
 226                         craftresult_is_preview = args.getBool("craftresult_is_preview");
 227                 if(craftresult_is_preview)
 228                 {
 229                         // Clear craftresult
 230                         inventory.getList("craftresult")->changeItem(0, ItemStack());
 231                 }
 232         }
 233
 234         // Set m_last_*
 235         checkModified();
 236 }
 237
 238 /*
 239         RemotePlayer
 240 */
 241
 242
 243
 244
 245
 246 void RemotePlayer::setPosition(const v3f &position)
 247 {
 248         Player::setPosition(position);
 249         if(m_sao)
 250                 m_sao->setBasePosition(position);
 251 }