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 #include "client/shadows/dynamicshadowsrender.h"
  32
  33 RenderingCore::RenderingCore(IrrlichtDevice *_device, Client *_client, Hud *_hud)
  34         : device(_device), driver(device->getVideoDriver()), smgr(device->getSceneManager()),
  35         guienv(device->getGUIEnvironment()), client(_client), camera(client->getCamera()),
  36         mapper(client->getMinimap()), hud(_hud),
  37         shadow_renderer(nullptr)
  38 {
  39         screensize = driver->getScreenSize();
  40         virtual_size = screensize;
  41
  42         if (g_settings->getBool("enable_shaders") &&
  43                         g_settings->getBool("enable_dynamic_shadows")) {
  44                 shadow_renderer = new ShadowRenderer(device, client);
  45         }
  46 }
  47
  48 RenderingCore::~RenderingCore()
  49 {
  50         clearTextures();
  51         delete shadow_renderer;
  52 }
  53
  54 void RenderingCore::initialize()
  55 {
  56         // have to be called late as the VMT is not ready in the constructor:
  57         initTextures();
  58         if (shadow_renderer)
  59                 shadow_renderer->initialize();
  60 }
  61
  62 void RenderingCore::updateScreenSize()
  63 {
  64         virtual_size = screensize;
  65         clearTextures();
  66         initTextures();
  67 }
  68
  69 void RenderingCore::draw(video::SColor _skycolor, bool _show_hud, bool _show_minimap,
  70                 bool _draw_wield_tool, bool _draw_crosshair)
  71 {
  72         v2u32 ss = driver->getScreenSize();
  73         if (screensize != ss) {
  74                 screensize = ss;
  75                 updateScreenSize();
  76         }
  77         skycolor = _skycolor;
  78         show_hud = _show_hud;
  79         show_minimap = _show_minimap;
  80         draw_wield_tool = _draw_wield_tool;
  81         draw_crosshair = _draw_crosshair;
  82         draw_entity_esp = g_settings->getBool("enable_entity_esp");
  83         draw_entity_tracers = g_settings->getBool("enable_entity_tracers");
  84         draw_player_esp = g_settings->getBool("enable_player_esp");
  85         draw_player_tracers = g_settings->getBool("enable_player_tracers");
  86         draw_node_esp = g_settings->getBool("enable_node_esp");
  87         draw_node_tracers = g_settings->getBool("enable_node_tracers");
  88         v3f entity_color = g_settings->getV3F("entity_esp_color");
  89         v3f player_color = g_settings->getV3F("player_esp_color");
  90         entity_esp_color = video::SColor(255, entity_color.X, entity_color.Y, entity_color.Z);
  91         player_esp_color = video::SColor(255, player_color.X, player_color.Y, player_color.Z);
  92
  93         if (shadow_renderer) {
  94                 // This is necessary to render shadows for animations correctly
  95                 smgr->getRootSceneNode()->OnAnimate(device->getTimer()->getTime());
  96                 shadow_renderer->update();
  97         }
  98
  99         beforeDraw();
 100         drawAll();
 101 }
 102
 103 void RenderingCore::drawTracersAndESP()
 104 {
 105         ClientEnvironment &env = client->getEnv();
 106         Camera *camera = client->getCamera();
 107
 108         v3f camera_offset = intToFloat(camera->getOffset(), BS);
 109
 110         v3f eye_pos = (camera->getPosition() + camera->getDirection() - camera_offset);
 111
 112         video::SMaterial material, oldmaterial;
 113         oldmaterial = driver->getMaterial2D();
 114         material.setFlag(video::EMF_LIGHTING, false);
 115         material.setFlag(video::EMF_BILINEAR_FILTER, false);
 116         material.setFlag(video::EMF_ZBUFFER, false);
 117         material.setFlag(video::EMF_ZWRITE_ENABLE, false);
 118         driver->setMaterial(material);
 119
 120         if (draw_entity_esp || draw_entity_tracers || draw_player_esp || draw_player_tracers) {
 121                 auto allObjects = env.getAllActiveObjects();
 122                 for (auto &it : allObjects) {
 123                         ClientActiveObject *cao = it.second;
 124                         if (cao->isLocalPlayer() || cao->getParent())
 125                                 continue;
 126                         GenericCAO *obj = dynamic_cast<GenericCAO *>(cao);
 127                         if (! obj)
 128                                 continue;
 129                         bool is_player = obj->isPlayer();
 130                         bool draw_esp = is_player ? draw_player_esp : draw_entity_esp;
 131                         bool draw_tracers = is_player ? draw_player_tracers : draw_entity_tracers;
 132                         video::SColor color = is_player ? player_esp_color : entity_esp_color;
 133                         if (! (draw_esp || draw_tracers))
 134                                 continue;
 135                         aabb3f box;
 136                         if (! obj->getSelectionBox(&box))
 137                                 continue;
 138                         v3f pos = obj->getPosition() - camera_offset;
 139                         box.MinEdge += pos;
 140                         box.MaxEdge += pos;
 141                         if (draw_esp)
 142                                 driver->draw3DBox(box, color);
 143                         if (draw_tracers)
 144                                 driver->draw3DLine(eye_pos, box.getCenter(), color);
 145                 }
 146         }
 147         if (draw_node_esp || draw_node_tracers) {
 148                 Map &map = env.getMap();
 149                 std::vector<v3s16> positions;
 150                 map.listAllLoadedBlocks(positions);
 151                 for (v3s16 blockp : positions) {
 152                         MapBlock *block = map.getBlockNoCreate(blockp);
 153                         if (! block->mesh)
 154                                 continue;
 155                         for (v3s16 p : block->mesh->esp_nodes) {
 156                                 v3f pos = intToFloat(p, BS) - camera_offset;
 157                                 MapNode node = map.getNode(p);
 158                                 std::vector<aabb3f> boxes;
 159                                 node.getSelectionBoxes(client->getNodeDefManager(), &boxes, node.getNeighbors(p, &map));
 160                                 video::SColor color = client->getNodeDefManager()->get(node).minimap_color;
 161                                 for (aabb3f box : boxes) {
 162                                         box.MinEdge += pos;
 163                                         box.MaxEdge += pos;
 164                                         if (draw_node_esp)
 165                                                 driver->draw3DBox(box, color);
 166                                         if (draw_node_tracers)
 167                                                 driver->draw3DLine(eye_pos, box.getCenter(), color);
 168                                 }
 169                         }
 170                 }
 171         }
 172
 173         driver->setMaterial(oldmaterial);
 174 }
 175
 176 void RenderingCore::draw3D()
 177 {
 178         smgr->drawAll();
 179         if (shadow_renderer)
 180                 shadow_renderer->drawDebug();
 181
 182         driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
 183         if (!show_hud)
 184                 return;
 185         hud->drawBlockBounds();
 186         hud->drawSelectionMesh();
 187         if (draw_entity_esp || draw_entity_tracers || draw_player_esp || draw_player_tracers || draw_node_esp || draw_node_tracers)
 188                 drawTracersAndESP();
 189         if (draw_wield_tool)
 190                 camera->drawWieldedTool();
 191 }
 192
 193 void RenderingCore::drawHUD()
 194 {
 195         if (show_hud) {
 196                 if (draw_crosshair)
 197                         hud->drawCrosshair();
 198
 199                 hud->drawHotbar(client->getEnv().getLocalPlayer()->getWieldIndex());
 200                 hud->drawLuaElements(camera->getOffset());
 201                 camera->drawNametags();
 202                 if (mapper && show_minimap)
 203                         mapper->drawMinimap();
 204         }
 205         guienv->drawAll();
 206 }
 207
 208 void RenderingCore::drawPostFx()
 209 {
 210         client->getEnv().getClientMap().renderPostFx(camera->getCameraMode());
 211 }