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