Urho3D/Source/Samples/01_HelloWorld/HelloWorld.h
2021-07-17 16:43:46 +00:00

61 lines
2.4 KiB
C++

//
// Copyright (c) 2008-2021 the Urho3D project.
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
//
#pragma once
#include "Sample.h"
/// This first example, maintaining tradition, prints a "Hello World" message.
/// Furthermore it shows:
/// - Using the Sample / Application classes, which initialize the Urho3D engine and run the main loop
/// - Adding a Text element to the graphical user interface
/// - Subscribing to and handling of update events
class HelloWorld : public Sample
{
URHO3D_OBJECT(HelloWorld, Sample);
public:
/// Construct.
explicit HelloWorld(Context* context);
/// Setup after engine initialization and before running the main loop.
void Start() override;
protected:
/// Return XML patch instructions for screen joystick layout for a specific sample app, if any.
String GetScreenJoystickPatchString() const override { return
"<patch>"
" <add sel=\"/element/element[./attribute[@name='Name' and @value='Hat0']]\">"
" <attribute name=\"Is Visible\" value=\"false\" />"
" </add>"
"</patch>";
}
private:
/// Construct a new Text instance, containing the 'Hello World' String, and add it to the UI root element.
void CreateText();
/// Subscribe to application-wide logic update events.
void SubscribeToEvents();
/// Handle the logic update event.
void HandleUpdate(StringHash eventType, VariantMap& eventData);
};