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
  86 Player::~Player()
  87 {
  88 }
  89
  90 // Horizontal acceleration (X and Z), Y direction is ignored
  91 void Player::accelerateHorizontal(v3f target_speed, f32 max_increase)
  92 {
  93         if(max_increase == 0)
  94                 return;
  95
  96         v3f d_wanted = target_speed - m_speed;
  97         d_wanted.Y = 0;
  98         f32 dl = d_wanted.getLength();
  99         if(dl > max_increase)
 100                 dl = max_increase;
 101
 102         v3f d = d_wanted.normalize() * dl;
 103
 104         m_speed.X += d.X;
 105         m_speed.Z += d.Z;
 106
 107 #if 0 // old code
 108         if(m_speed.X < target_speed.X - max_increase)
 109                 m_speed.X += max_increase;
 110         else if(m_speed.X > target_speed.X + max_increase)
 111                 m_speed.X -= max_increase;
 112         else if(m_speed.X < target_speed.X)
 113                 m_speed.X = target_speed.X;
 114         else if(m_speed.X > target_speed.X)
 115                 m_speed.X = target_speed.X;
 116
 117         if(m_speed.Z < target_speed.Z - max_increase)
 118                 m_speed.Z += max_increase;
 119         else if(m_speed.Z > target_speed.Z + max_increase)
 120                 m_speed.Z -= max_increase;
 121         else if(m_speed.Z < target_speed.Z)
 122                 m_speed.Z = target_speed.Z;
 123         else if(m_speed.Z > target_speed.Z)
 124                 m_speed.Z = target_speed.Z;
 125 #endif
 126 }
 127
 128 // Vertical acceleration (Y), X and Z directions are ignored
 129 void Player::accelerateVertical(v3f target_speed, f32 max_increase)
 130 {
 131         if(max_increase == 0)
 132                 return;
 133
 134         f32 d_wanted = target_speed.Y - m_speed.Y;
 135         if(d_wanted > max_increase)
 136                 d_wanted = max_increase;
 137         else if(d_wanted < -max_increase)
 138                 d_wanted = -max_increase;
 139
 140         m_speed.Y += d_wanted;
 141
 142 #if 0 // old code
 143         if(m_speed.Y < target_speed.Y - max_increase)
 144                 m_speed.Y += max_increase;
 145         else if(m_speed.Y > target_speed.Y + max_increase)
 146                 m_speed.Y -= max_increase;
 147         else if(m_speed.Y < target_speed.Y)
 148                 m_speed.Y = target_speed.Y;
 149         else if(m_speed.Y > target_speed.Y)
 150                 m_speed.Y = target_speed.Y;
 151 #endif
 152 }
 153
 154 v3s16 Player::getLightPosition() const
 155 {
 156         return floatToInt(m_position + v3f(0,BS+BS/2,0), BS);
 157 }
 158
 159 void Player::serialize(std::ostream &os)
 160 {
 161         // Utilize a Settings object for storing values
 162         Settings args;
 163         args.setS32("version", 1);
 164         args.set("name", m_name);
 165         //args.set("password", m_password);
 166         args.setFloat("pitch", m_pitch);
 167         args.setFloat("yaw", m_yaw);
 168         args.setV3F("position", m_position);
 169         args.setS32("hp", hp);
 170
 171         args.writeLines(os);
 172
 173         os<<"PlayerArgsEnd\n";
 174
 175         inventory.serialize(os);
 176 }
 177
 178 void Player::deSerialize(std::istream &is)
 179 {
 180         Settings args;
 181
 182         for(;;)
 183         {
 184                 if(is.eof())
 185                         throw SerializationError
 186                                         ("Player::deSerialize(): PlayerArgsEnd not found");
 187                 std::string line;
 188                 std::getline(is, line);
 189                 std::string trimmedline = trim(line);
 190                 if(trimmedline == "PlayerArgsEnd")
 191                         break;
 192                 args.parseConfigLine(line);
 193         }
 194
 195         //args.getS32("version"); // Version field value not used
 196         std::string name = args.get("name");
 197         updateName(name.c_str());
 198         setPitch(args.getFloat("pitch"));
 199         setYaw(args.getFloat("yaw"));
 200         setPosition(args.getV3F("position"));
 201         try{
 202                 hp = args.getS32("hp");
 203         }catch(SettingNotFoundException &e){
 204                 hp = 20;
 205         }
 206
 207         inventory.deSerialize(is);
 208
 209         if(inventory.getList("craftpreview") == NULL)
 210         {
 211                 // Convert players without craftpreview
 212                 inventory.addList("craftpreview", 1);
 213
 214                 bool craftresult_is_preview = true;
 215                 if(args.exists("craftresult_is_preview"))
 216                         craftresult_is_preview = args.getBool("craftresult_is_preview");
 217                 if(craftresult_is_preview)
 218                 {
 219                         // Clear craftresult
 220                         inventory.getList("craftresult")->changeItem(0, ItemStack());
 221                 }
 222         }
 223 }
 224
 225 /*
 226         RemotePlayer
 227 */
 228
 229
 230
 231
 232
 233 void RemotePlayer::setPosition(const v3f &position)
 234 {
 235         Player::setPosition(position);
 236         if(m_sao)
 237                 m_sao->setBasePosition(position);
 238 }