examples/fpp-game/game-scene.cpp

   1 /*
   2  * Copyright (c) 2020 Samsung Electronics Co., Ltd.
   3  *
   4  * Licensed under the Apache License, Version 2.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  *
  16  */
  17
  18 #include <string.h>
  19 #include <stdio.h>
  20
  21 #include "game-scene.h"
  22 #include "game-model.h"
  23 #include "game-texture.h"
  24 #include "game-entity.h"
  25 #include "game-renderer.h"
  26 #include "game-camera.h"
  27
  28 #include "third-party/picojson.h"
  29
  30 #include <dali/dali.h>
  31
  32 using namespace Dali;
  33 using namespace picojson;
  34
  35 using std::vector;
  36
  37 using namespace GameUtils;
  38
  39 GameScene::GameScene()
  40 {
  41 }
  42
  43 GameScene::~GameScene()
  44 {
  45 }
  46
  47 bool GameScene::Load(Window window, const char *filename)
  48 {
  49   ByteArray bytes;
  50   if( !LoadFile( filename, bytes ) )
  51   {
  52     return false;
  53   }
  54
  55   // add EOL
  56   bytes.push_back( '\0');
  57
  58   picojson::value root;
  59   picojson::parse( root, bytes.data() );
  60
  61   bool failed( false );
  62
  63   if( root.is<object>() )
  64   {
  65     object rootObject = root.get<object>();
  66     for( object::iterator it = rootObject.begin(); it != rootObject.end(); ++it )
  67     {
  68       std::string entityName( (*it).first );
  69
  70       GameEntity* entity = new GameEntity( entityName.c_str() );
  71       mEntities.PushBack( entity );
  72
  73       value& val( (*it).second );
  74       value& vLocation = val.get( "location" );
  75       value& vRotation = val.get( "rotation" );
  76       value& vScale = val.get( "scale" );
  77       value& vSize = val.get( "size" );
  78       value& vModel = val.get( "model" );
  79       value& vTexture = val.get( "texture" );
  80
  81       if( !vLocation.is<null>() )
  82       {
  83         array& location = vLocation.get<array>();
  84         entity->SetLocation( Vector3(
  85                               location.at(0).get<double>(),
  86                               location.at(1).get<double>(),
  87                               location.at(2).get<double>()
  88                               ));
  89       }
  90
  91       if( !vRotation.is<null>() )
  92       {
  93         array& rotation = vRotation.get<array>();
  94         entity->SetRotation( Quaternion( Vector4(
  95                               -rotation.at(0).get<double>(),
  96                               rotation.at(1).get<double>(),
  97                               -rotation.at(2).get<double>(),
  98                               rotation.at(3).get<double>()
  99                               )) );
 100       }
 101
 102       if( !vScale.is<null>() )
 103       {
 104         array& scale = vScale.get<array>();
 105         entity->SetScale( Vector3(
 106                               scale.at(0).get<double>(),
 107                               scale.at(1).get<double>(),
 108                               scale.at(2).get<double>()
 109                               ));
 110       }
 111
 112       if( !vSize.is<null>() )
 113       {
 114         array& size = vSize.get<array>();
 115         entity->SetSize( Vector3(
 116                               size.at(0).get<double>(),
 117                               size.at(1).get<double>(),
 118                               size.at(2).get<double>()
 119                               ));
 120       }
 121
 122       GameModel* model( NULL );
 123       GameTexture* texture( NULL );
 124
 125       if( !vModel.is<null>() )
 126       {
 127         std::string& strModel = vModel.get<std::string>();
 128         model = GetResource( strModel.c_str(), mModelCache );
 129       }
 130
 131       if( !vTexture.is<null>() )
 132       {
 133         std::string& strTexture = vTexture.get<std::string>();
 134         texture = GetResource( strTexture.c_str(), mTextureCache );
 135       }
 136
 137       if( !model || !texture )
 138       {
 139         failed = true;
 140         break;
 141       }
 142
 143       entity->GetGameRenderer().SetModel( model );
 144       entity->GetGameRenderer().SetMainTexture( texture );
 145     }
 146   }
 147
 148   if( failed )
 149   {
 150     return false;
 151   }
 152
 153   // add all to the window
 154   mRootActor = Actor::New();
 155   mRootActor.SetProperty( Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER );
 156   mRootActor.SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER );
 157   window.GetRootLayer().Add( mRootActor );
 158   mRootActor.SetProperty( Actor::Property::SCALE, Vector3( -1.0, 1.0, 1.0 ) );
 159   mRootActor.SetProperty( Actor::Property::POSITION, Vector3( 0.0, 0.0, 0.0 ) );
 160   mRootActor.SetProperty( Actor::Property::ORIENTATION, Quaternion( Degree( 90 ), Vector3( 1.0, 0.0, 0.0 ) ) );
 161   for( size_t i = 0; i < mEntities.Size(); ++i )
 162   {
 163     Actor actor( mEntities[i]->GetActor() );
 164     actor.SetProperty( Actor::Property::ANCHOR_POINT, AnchorPoint::CENTER );
 165     actor.SetProperty( Actor::Property::PARENT_ORIGIN, ParentOrigin::CENTER );
 166     mRootActor.Add( actor );
 167     mEntities[i]->UpdateRenderer();
 168   }
 169
 170   // update camera
 171   mCamera.Initialise( window.GetRenderTaskList().GetTask(0).GetCameraActor(), 60.0f, 0.1f, 100.0f, window.GetSize() );
 172
 173   return true;
 174 }
 175
 176 Dali::Actor& GameScene::GetRootActor()
 177 {
 178   return mRootActor;
 179 }