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