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
  30 RenderingCore::RenderingCore(IrrlichtDevice *_device, Client *_client, Hud *_hud) :
  31                 device(_device), driver(device->getVideoDriver()),
  32                 smgr(device->getSceneManager()), guienv(device->getGUIEnvironment()),
  33                 client(_client), camera(client->getCamera()),
  34                 mapper(client->getMinimap()), hud(_hud)
  35 {
  36         screensize = driver->getScreenSize();
  37         virtual_size = screensize;
  38 }
  39
  40 RenderingCore::~RenderingCore()
  41 {
  42         clearTextures();
  43 }
  44
  45 void RenderingCore::initialize()
  46 {
  47         // have to be called late as the VMT is not ready in the constructor:
  48         initTextures();
  49 }
  50
  51 void RenderingCore::updateScreenSize()
  52 {
  53         virtual_size = screensize;
  54         clearTextures();
  55         initTextures();
  56 }
  57
  58 void RenderingCore::draw(video::SColor _skycolor, bool _show_hud, bool _show_minimap,
  59                 bool _draw_wield_tool, bool _draw_crosshair, bool _draw_tracers,
  60                 bool _draw_esp)
  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_tracers = _draw_tracers;
  73         draw_esp = _draw_esp;
  74
  75         beforeDraw();
  76         drawAll();
  77 }
  78
  79 void RenderingCore::drawTracersAndESP()
  80 {
  81         ClientEnvironment &env = client->getEnv();
  82         Camera *camera = client->getCamera();
  83
  84         v3f camera_offset = intToFloat(camera->getOffset(), BS);
  85
  86         v3f eye_pos = (camera->getPosition() + camera->getDirection() - camera_offset);
  87
  88         video::SMaterial material, oldmaterial;
  89         oldmaterial = driver->getMaterial2D();
  90         material.setFlag(video::EMF_LIGHTING, false);
  91         material.setFlag(video::EMF_BILINEAR_FILTER, false);
  92         material.setFlag(video::EMF_ZBUFFER, false);
  93         material.setFlag(video::EMF_ZWRITE_ENABLE, false);
  94         driver->setMaterial(material);
  95
  96         auto allObjects = env.getAllActiveObjects();
  97         for (auto &it : allObjects) {
  98                 ClientActiveObject *cao = it.second;
  99                 if (cao->isLocalPlayer() || cao->getParent())
 100                         continue;
 101                 GenericCAO *obj = dynamic_cast<GenericCAO *>(cao);
 102                 if (!obj)
 103                         continue;
 104                 aabb3f box;
 105                 if (!obj->getSelectionBox(&box))
 106                         continue;
 107                 v3f pos = obj->getPosition();
 108                 pos -= camera_offset;
 109                 box.MinEdge += pos;
 110                 box.MaxEdge += pos;
 111                 pos = box.getCenter();
 112                 if (draw_esp)
 113                         driver->draw3DBox(box, video::SColor(255, 255, 255, 255));
 114                 if (draw_tracers)
 115                         driver->draw3DLine(
 116                                         eye_pos, pos, video::SColor(255, 255, 255, 255));
 117         }
 118
 119         driver->setMaterial(oldmaterial);
 120 }
 121
 122 void RenderingCore::draw3D()
 123 {
 124         smgr->drawAll();
 125         driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
 126         if (!show_hud)
 127                 return;
 128         hud->drawSelectionMesh();
 129         if (draw_tracers || draw_esp)
 130                 drawTracersAndESP();
 131         if (draw_wield_tool)
 132                 camera->drawWieldedTool();
 133 }
 134
 135 void RenderingCore::drawHUD()
 136 {
 137         if (show_hud) {
 138                 if (draw_crosshair)
 139                         hud->drawCrosshair();
 140
 141                 hud->drawHotbar(client->getEnv().getLocalPlayer()->getWieldIndex());
 142                 hud->drawLuaElements(camera->getOffset());
 143                 camera->drawNametags();
 144                 if (mapper && show_minimap)
 145                         mapper->drawMinimap();
 146         }
 147         guienv->drawAll();
 148 }
 149
 150 void RenderingCore::drawPostFx()
 151 {
 152         client->getEnv().getClientMap().renderPostFx(camera->getCameraMode());
 153 }