src/client/render/core.cpp

   1 /*
   2 Minetest
   3 Copyright (C) 2010-2013 celeron55, Perttu Ahola <celeron55@gmail.com>
   4 Copyright (C) 2017 numzero, Lobachevskiy Vitaliy <numzer0@yandex.ru>
   5
   6 This program is free software; you can redistribute it and/or modify
   7 it under the terms of the GNU Lesser General Public License as published by
   8 the Free Software Foundation; either version 2.1 of the License, or
   9 (at your option) any later version.
  10
  11 This program is distributed in the hope that it will be useful,
  12 but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 GNU Lesser General Public License for more details.
  15
  16 You should have received a copy of the GNU Lesser General Public License along
  17 with this program; if not, write to the Free Software Foundation, Inc.,
  18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  19 */
  20
  21 #include <iostream>
  22 #include "core.h"
  23 #include "client/camera.h"
  24 #include "client/client.h"
  25 #include "client/clientmap.h"
  26 #include "client/hud.h"
  27 #include "client/minimap.h"
  28 #include "client/content_cao.h"
  29 #include "mapblock.h"
  30 #include "mapsector.h"
  31
  32 RenderingCore::RenderingCore(IrrlichtDevice *_device, Client *_client, Hud *_hud)
  33         : device(_device), driver(device->getVideoDriver()), smgr(device->getSceneManager()),
  34         guienv(device->getGUIEnvironment()), client(_client), camera(client->getCamera()),
  35         mapper(client->getMinimap()), hud(_hud)
  36 {
  37         screensize = driver->getScreenSize();
  38         virtual_size = screensize;
  39 }
  40
  41 RenderingCore::~RenderingCore()
  42 {
  43         clearTextures();
  44 }
  45
  46 void RenderingCore::initialize()
  47 {
  48         // have to be called late as the VMT is not ready in the constructor:
  49         initTextures();
  50 }
  51
  52 void RenderingCore::updateScreenSize()
  53 {
  54         virtual_size = screensize;
  55         clearTextures();
  56         initTextures();
  57 }
  58
  59 void RenderingCore::draw(video::SColor _skycolor, bool _show_hud, bool _show_minimap,
  60                 bool _draw_wield_tool, bool _draw_crosshair)
  61 {
  62         v2u32 ss = driver->getScreenSize();
  63         if (screensize != ss) {
  64                 screensize = ss;
  65                 updateScreenSize();
  66         }
  67         skycolor = _skycolor;
  68         show_hud = _show_hud;
  69         show_minimap = _show_minimap;
  70         draw_wield_tool = _draw_wield_tool;
  71         draw_crosshair = _draw_crosshair;
  72         draw_entity_esp = g_settings->getBool("enable_entity_esp");
  73         draw_entity_tracers = g_settings->getBool("enable_entity_tracers");
  74         draw_player_esp = g_settings->getBool("enable_player_esp");
  75         draw_player_tracers = g_settings->getBool("enable_player_tracers");
  76         draw_node_esp = g_settings->getBool("enable_node_esp");
  77         draw_node_tracers = g_settings->getBool("enable_node_tracers");
  78         v3f entity_color = g_settings->getV3F("entity_esp_color");
  79         v3f player_color = g_settings->getV3F("player_esp_color");
  80         entity_esp_color = video::SColor(255, entity_color.X, entity_color.Y, entity_color.Z);
  81         player_esp_color = video::SColor(255, player_color.X, player_color.Y, player_color.Z);
  82
  83         beforeDraw();
  84         drawAll();
  85 }
  86
  87 void RenderingCore::drawTracersAndESP()
  88 {
  89         ClientEnvironment &env = client->getEnv();
  90         Camera *camera = client->getCamera();
  91
  92         v3f camera_offset = intToFloat(camera->getOffset(), BS);
  93
  94         v3f eye_pos = (camera->getPosition() + camera->getDirection() - camera_offset);
  95
  96         video::SMaterial material, oldmaterial;
  97         oldmaterial = driver->getMaterial2D();
  98         material.setFlag(video::EMF_LIGHTING, false);
  99         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 100         material.setFlag(video::EMF_ZBUFFER, false);
 101         material.setFlag(video::EMF_ZWRITE_ENABLE, false);
 102         driver->setMaterial(material);
 103
 104         if (draw_entity_esp || draw_entity_tracers || draw_player_esp || draw_player_tracers) {
 105                 auto allObjects = env.getAllActiveObjects();
 106                 for (auto &it : allObjects) {
 107                         ClientActiveObject *cao = it.second;
 108                         if (cao->isLocalPlayer() || cao->getParent())
 109                                 continue;
 110                         GenericCAO *obj = dynamic_cast<GenericCAO *>(cao);
 111                         if (! obj)
 112                                 continue;
 113                         bool is_player = obj->isPlayer();
 114                         bool draw_esp = is_player ? draw_player_esp : draw_entity_esp;
 115                         bool draw_tracers = is_player ? draw_player_tracers : draw_entity_tracers;
 116                         video::SColor color = is_player ? player_esp_color : entity_esp_color;
 117                         if (! (draw_esp || draw_tracers))
 118                                 continue;
 119                         aabb3f box;
 120                         if (! obj->getSelectionBox(&box))
 121                                 continue;
 122                         v3f pos = obj->getPosition() - camera_offset;
 123                         box.MinEdge += pos;
 124                         box.MaxEdge += pos;
 125                         if (draw_esp)
 126                                 driver->draw3DBox(box, color);
 127                         if (draw_tracers)
 128                                 driver->draw3DLine(eye_pos, box.getCenter(), color);
 129                 }
 130         }
 131         if (draw_node_esp || draw_node_tracers) {
 132                 Map &map = env.getMap();
 133                 std::vector<v3s16> positions;
 134                 map.listAllLoadedBlocks(positions);
 135                 for (v3s16 blockp : positions) {
 136                         MapBlock *block = map.getBlockNoCreate(blockp);
 137                         if (! block->mesh)
 138                                 continue;
 139                         for (v3s16 p : block->mesh->esp_nodes) {
 140                                 v3f pos = intToFloat(p, BS) - camera_offset;
 141                                 MapNode node = map.getNode(p);
 142                                 std::vector<aabb3f> boxes;
 143                                 node.getSelectionBoxes(client->getNodeDefManager(), &boxes, node.getNeighbors(p, &map));
 144                                 video::SColor color = client->getNodeDefManager()->get(node).minimap_color;
 145                                 for (aabb3f box : boxes) {
 146                                         box.MinEdge += pos;
 147                                         box.MaxEdge += pos;
 148                                         if (draw_node_esp)
 149                                                 driver->draw3DBox(box, color);
 150                                         if (draw_node_tracers)
 151                                                 driver->draw3DLine(eye_pos, box.getCenter(), color);
 152                                 }
 153                         }
 154                 }
 155         }
 156
 157         driver->setMaterial(oldmaterial);
 158 }
 159
 160 void RenderingCore::draw3D()
 161 {
 162         smgr->drawAll();
 163         driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
 164         if (!show_hud)
 165                 return;
 166         hud->drawSelectionMesh();
 167         if (draw_entity_esp || draw_entity_tracers || draw_player_esp || draw_player_tracers || draw_node_esp || draw_node_tracers)
 168                 drawTracersAndESP();
 169         if (draw_wield_tool)
 170                 camera->drawWieldedTool();
 171 }
 172
 173 void RenderingCore::drawHUD()
 174 {
 175         if (show_hud) {
 176                 if (draw_crosshair)
 177                         hud->drawCrosshair();
 178
 179                 hud->drawHotbar(client->getEnv().getLocalPlayer()->getWieldIndex());
 180                 hud->drawLuaElements(camera->getOffset());
 181                 camera->drawNametags();
 182                 if (mapper && show_minimap)
 183                         mapper->drawMinimap();
 184         }
 185         guienv->drawAll();
 186 }
 187
 188 void RenderingCore::drawPostFx()
 189 {
 190         client->getEnv().getClientMap().renderPostFx(camera->getCameraMode());
 191 }