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         light(0),
  38         inventory(gamedef->idef()),
  39         hp(PLAYER_MAX_HP),
  40         hurt_tilt_timer(0),
  41         hurt_tilt_strength(0),
  42         peer_id(PEER_ID_INEXISTENT),
  43         keyPressed(0),
  44 // protected
  45         m_gamedef(gamedef),
  46         m_breath(-1),
  47         m_pitch(0),
  48         m_yaw(0),
  49         m_speed(0,0,0),
  50         m_position(0,0,0),
  51         m_collisionbox(-BS*0.30,0.0,-BS*0.30,BS*0.30,BS*1.55,BS*0.30),
  52         m_last_pitch(0),
  53         m_last_yaw(0),
  54         m_last_pos(0,0,0),
  55         m_last_hp(PLAYER_MAX_HP),
  56         m_last_inventory(gamedef->idef())
  57 {
  58         updateName("<not set>");
  59         inventory.clear();
  60         inventory.addList("main", PLAYER_INVENTORY_SIZE);
  61         InventoryList *craft = inventory.addList("craft", 9);
  62         craft->setWidth(3);
  63         inventory.addList("craftpreview", 1);
  64         inventory.addList("craftresult", 1);
  65         m_last_inventory = inventory;
  66
  67         // Can be redefined via Lua
  68         inventory_formspec = "size[8,7.5]"
  69                 //"image[1,0.6;1,2;player.png]"
  70                 "list[current_player;main;0,3.5;8,4;]"
  71                 "list[current_player;craft;3,0;3,3;]"
  72                 "list[current_player;craftpreview;7,1;1,1;]";
  73
  74         // Initialize movement settings at default values, so movement can work if the server fails to send them
  75         movement_acceleration_default   = 3    * BS;
  76         movement_acceleration_air       = 2    * BS;
  77         movement_acceleration_fast      = 10   * BS;
  78         movement_speed_walk             = 4    * BS;
  79         movement_speed_crouch           = 1.35 * BS;
  80         movement_speed_fast             = 20   * BS;
  81         movement_speed_climb            = 2    * BS;
  82         movement_speed_jump             = 6.5  * BS;
  83         movement_liquid_fluidity        = 1    * BS;
  84         movement_liquid_fluidity_smooth = 0.5  * BS;
  85         movement_liquid_sink            = 10   * BS;
  86         movement_gravity                = 9.81 * BS;
  87
  88         // Movement overrides are multipliers and must be 1 by default
  89         physics_override_speed   = 1;
  90         physics_override_jump    = 1;
  91         physics_override_gravity = 1;
  92
  93         hud_flags = HUD_FLAG_HOTBAR_VISIBLE | HUD_FLAG_HEALTHBAR_VISIBLE |
  94                          HUD_FLAG_CROSSHAIR_VISIBLE | HUD_FLAG_WIELDITEM_VISIBLE |
  95                          HUD_FLAG_BREATHBAR_VISIBLE;
  96
  97         hud_hotbar_itemcount = HUD_HOTBAR_ITEMCOUNT_DEFAULT;
  98 }
  99
 100 Player::~Player()
 101 {
 102 }
 103
 104 // Horizontal acceleration (X and Z), Y direction is ignored
 105 void Player::accelerateHorizontal(v3f target_speed, f32 max_increase)
 106 {
 107         if(max_increase == 0)
 108                 return;
 109
 110         v3f d_wanted = target_speed - m_speed;
 111         d_wanted.Y = 0;
 112         f32 dl = d_wanted.getLength();
 113         if(dl > max_increase)
 114                 dl = max_increase;
 115
 116         v3f d = d_wanted.normalize() * dl;
 117
 118         m_speed.X += d.X;
 119         m_speed.Z += d.Z;
 120
 121 #if 0 // old code
 122         if(m_speed.X < target_speed.X - max_increase)
 123                 m_speed.X += max_increase;
 124         else if(m_speed.X > target_speed.X + max_increase)
 125                 m_speed.X -= max_increase;
 126         else if(m_speed.X < target_speed.X)
 127                 m_speed.X = target_speed.X;
 128         else if(m_speed.X > target_speed.X)
 129                 m_speed.X = target_speed.X;
 130
 131         if(m_speed.Z < target_speed.Z - max_increase)
 132                 m_speed.Z += max_increase;
 133         else if(m_speed.Z > target_speed.Z + max_increase)
 134                 m_speed.Z -= max_increase;
 135         else if(m_speed.Z < target_speed.Z)
 136                 m_speed.Z = target_speed.Z;
 137         else if(m_speed.Z > target_speed.Z)
 138                 m_speed.Z = target_speed.Z;
 139 #endif
 140 }
 141
 142 // Vertical acceleration (Y), X and Z directions are ignored
 143 void Player::accelerateVertical(v3f target_speed, f32 max_increase)
 144 {
 145         if(max_increase == 0)
 146                 return;
 147
 148         f32 d_wanted = target_speed.Y - m_speed.Y;
 149         if(d_wanted > max_increase)
 150                 d_wanted = max_increase;
 151         else if(d_wanted < -max_increase)
 152                 d_wanted = -max_increase;
 153
 154         m_speed.Y += d_wanted;
 155
 156 #if 0 // old code
 157         if(m_speed.Y < target_speed.Y - max_increase)
 158                 m_speed.Y += max_increase;
 159         else if(m_speed.Y > target_speed.Y + max_increase)
 160                 m_speed.Y -= max_increase;
 161         else if(m_speed.Y < target_speed.Y)
 162                 m_speed.Y = target_speed.Y;
 163         else if(m_speed.Y > target_speed.Y)
 164                 m_speed.Y = target_speed.Y;
 165 #endif
 166 }
 167
 168 v3s16 Player::getLightPosition() const
 169 {
 170         return floatToInt(m_position + v3f(0,BS+BS/2,0), BS);
 171 }
 172
 173 void Player::serialize(std::ostream &os)
 174 {
 175         // Utilize a Settings object for storing values
 176         Settings args;
 177         args.setS32("version", 1);
 178         args.set("name", m_name);
 179         //args.set("password", m_password);
 180         args.setFloat("pitch", m_pitch);
 181         args.setFloat("yaw", m_yaw);
 182         args.setV3F("position", m_position);
 183         args.setS32("hp", hp);
 184         args.setS32("breath", m_breath);
 185
 186         args.writeLines(os);
 187
 188         os<<"PlayerArgsEnd\n";
 189
 190         inventory.serialize(os);
 191 }
 192
 193 void Player::deSerialize(std::istream &is, std::string playername)
 194 {
 195         Settings args;
 196
 197         for(;;)
 198         {
 199                 if(is.eof())
 200                         throw SerializationError
 201                                         (("Player::deSerialize(): PlayerArgsEnd of player \"" + playername + "\" not found").c_str());
 202                 std::string line;
 203                 std::getline(is, line);
 204                 std::string trimmedline = trim(line);
 205                 if(trimmedline == "PlayerArgsEnd")
 206                         break;
 207                 args.parseConfigLine(line);
 208         }
 209
 210         //args.getS32("version"); // Version field value not used
 211         std::string name = args.get("name");
 212         updateName(name.c_str());
 213         setPitch(args.getFloat("pitch"));
 214         setYaw(args.getFloat("yaw"));
 215         setPosition(args.getV3F("position"));
 216         try{
 217                 hp = args.getS32("hp");
 218         }catch(SettingNotFoundException &e){
 219                 hp = 20;
 220         }
 221         try{
 222                 m_breath = args.getS32("breath");
 223         }catch(SettingNotFoundException &e){
 224                 m_breath = 11;
 225         }
 226
 227         inventory.deSerialize(is);
 228
 229         if(inventory.getList("craftpreview") == NULL)
 230         {
 231                 // Convert players without craftpreview
 232                 inventory.addList("craftpreview", 1);
 233
 234                 bool craftresult_is_preview = true;
 235                 if(args.exists("craftresult_is_preview"))
 236                         craftresult_is_preview = args.getBool("craftresult_is_preview");
 237                 if(craftresult_is_preview)
 238                 {
 239                         // Clear craftresult
 240                         inventory.getList("craftresult")->changeItem(0, ItemStack());
 241                 }
 242         }
 243
 244         // Set m_last_*
 245         checkModified();
 246 }
 247
 248 /*
 249         RemotePlayer
 250 */
 251
 252
 253
 254
 255
 256 void RemotePlayer::setPosition(const v3f &position)
 257 {
 258         Player::setPosition(position);
 259         if(m_sao)
 260                 m_sao->setBasePosition(position);
 261 }