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()), smgr(device->getSceneManager()),
  32         guienv(device->getGUIEnvironment()), client(_client), camera(client->getCamera()),
  33         mapper(client->getMinimap()), hud(_hud)
  34 {
  35         screensize = driver->getScreenSize();
  36         virtual_size = screensize;
  37 }
  38
  39 RenderingCore::~RenderingCore()
  40 {
  41         clearTextures();
  42 }
  43
  44 void RenderingCore::initialize()
  45 {
  46         // have to be called late as the VMT is not ready in the constructor:
  47         initTextures();
  48 }
  49
  50 void RenderingCore::updateScreenSize()
  51 {
  52         virtual_size = screensize;
  53         clearTextures();
  54         initTextures();
  55 }
  56
  57 void RenderingCore::draw(video::SColor _skycolor, bool _show_hud, bool _show_minimap,
  58                 bool _draw_wield_tool, bool _draw_crosshair, bool _draw_tracers, bool _draw_esp)
  59 {
  60         v2u32 ss = driver->getScreenSize();
  61         if (screensize != ss) {
  62                 screensize = ss;
  63                 updateScreenSize();
  64         }
  65         skycolor = _skycolor;
  66         show_hud = _show_hud;
  67         show_minimap = _show_minimap;
  68         draw_wield_tool = _draw_wield_tool;
  69         draw_crosshair = _draw_crosshair;
  70         draw_tracers = _draw_tracers;
  71         draw_esp = _draw_esp;
  72
  73         beforeDraw();
  74         drawAll();
  75 }
  76
  77 void RenderingCore::drawTracersAndESP()
  78 {
  79         ClientEnvironment &env = client->getEnv();
  80         Camera *camera = client->getCamera();
  81
  82         v3f camera_offset = intToFloat(camera->getOffset(), BS);
  83
  84         v3f eye_pos = (camera->getPosition() + camera->getDirection() - camera_offset);
  85
  86         video::SMaterial material, oldmaterial;
  87         oldmaterial = driver->getMaterial2D();
  88         material.setFlag(video::EMF_LIGHTING, false);
  89         material.setFlag(video::EMF_BILINEAR_FILTER, false);
  90         material.setFlag(video::EMF_ZBUFFER, false);
  91         material.setFlag(video::EMF_ZWRITE_ENABLE, false);
  92         driver->setMaterial(material);
  93
  94         auto allObjects = env.getAllActiveObjects();
  95         for (auto &it : allObjects) {
  96                 ClientActiveObject *cao = it.second;
  97                 if (cao->isLocalPlayer() || cao->getParent())
  98                         continue;
  99                 GenericCAO *obj = dynamic_cast<GenericCAO *>(cao);
 100                 if (! obj)
 101                         continue;
 102                 aabb3f box;
 103                 if (! obj->getSelectionBox(&box))
 104                         continue;
 105                 v3f pos = obj->getPosition();
 106                 pos -= camera_offset;
 107                 box.MinEdge += pos;
 108                 box.MaxEdge += pos;
 109                 pos = box.getCenter();
 110                 if (draw_esp)
 111                         driver->draw3DBox(box, video::SColor(255, 255, 255, 255));
 112                 if (draw_tracers)
 113                         driver->draw3DLine(eye_pos, pos, video::SColor(255, 255, 255, 255));
 114         }
 115
 116         driver->setMaterial(oldmaterial);
 117 }
 118
 119 void RenderingCore::draw3D()
 120 {
 121         smgr->drawAll();
 122         driver->setTransform(video::ETS_WORLD, core::IdentityMatrix);
 123         if (!show_hud)
 124                 return;
 125         hud->drawSelectionMesh();
 126         if (draw_tracers || draw_esp)
 127                 drawTracersAndESP();
 128         if (draw_wield_tool)
 129                 camera->drawWieldedTool();
 130 }
 131
 132 void RenderingCore::drawHUD()
 133 {
 134         if (show_hud) {
 135                 if (draw_crosshair)
 136                         hud->drawCrosshair();
 137
 138                 hud->drawHotbar(client->getEnv().getLocalPlayer()->getWieldIndex());
 139                 hud->drawLuaElements(camera->getOffset());
 140                 camera->drawNametags();
 141                 if (mapper && show_minimap)
 142                         mapper->drawMinimap();
 143         }
 144         guienv->drawAll();
 145 }
 146
 147 void RenderingCore::drawPostFx()
 148 {
 149         client->getEnv().getClientMap().renderPostFx(camera->getCameraMode());
 150 }