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