Управление геймплеем

1. Create a new C# component and call it LevelManager.Создайте новый компонент C# и назовите его LevelManager.

2. Open the LevelManager component in an IDE and copy the code below. Save your code in an IDE to ensure it's automatic compilation on switching back to UnigineEditor. Откройте компонент LevelManager в среде IDE и скопируйте приведенный ниже код. Сохраните свой код в IDE, чтобы обеспечить его автоматическую компиляцию при возврате к UnigineEditor.

   LevelManager.cs

   using System;
   using System.Collections;
   using System.Collections.Generic;
   using Unigine;
    
   [Component(PropertyGuid = "AUTOGENERATED_GUID")] // <-- this line is generated automatically for a new component
   public class LevelManager : Component
   {
   	// level timer
   	public float timer = 100.0f; 
   
   	bool isCounting = true;
   
   	int physicalObjectsNum;
   	
   	WidgetLabel widget_timer, widget_goal;
   
   	void Init()
   	{
   		InitGUI();
   		// count physical objects in the level
   		physicalObjectsNum = node.NumChildren;
   	}
   
   	void InitGUI()
   	{
   		// getting a GUI pointer
   		Gui gui = Gui.GetCurrent();
   
   		// creating a label widget and setting up its parameters
   		widget_timer = new WidgetLabel(gui, "Time Left:");
   		widget_timer.SetPosition(10, 10);
   		widget_timer.FontColor = vec4.RED;
   
   		widget_goal = new WidgetLabel(gui, "Objects Left: ");
   		widget_goal.SetPosition(10, 30);
   		widget_goal.FontColor = vec4.BLUE; 
   
   		// add widgets to the GUI
   		gui.AddChild(widget_timer, Gui.ALIGN_OVERLAP);
   		gui.AddChild(widget_goal, Gui.ALIGN_OVERLAP);
   	}
   
   	void Update()
   	{
   		// decrease the timer
   		if (isCounting)
   		{
   			timer -= Game.IFps;
   			if (timer <= 0)
   			{
   				//end game
   				isCounting = false;
   			}
   		}
   
   		//win
   		if (physicalObjectsNum <= 0)
   		{
   			isCounting = false;
   		}
   
   		// show the current time and objects left to clear
   		if (isCounting)
   		{
   			widget_timer.Text = "Time Left: " + timer.ToString("0.0") + " s";
   			widget_goal.Text = "Objects Left: " + physicalObjectsNum.ToString();
   		}
   		//hide the widgets on end game
   		else
   		{
   			widget_timer.Enabled = false;
   			widget_goal.Enabled = false;
   		}
   	}
   
   	void Shutdown()
   	{
   		widget_timer.DeleteLater();
   		widget_goal.DeleteLater();
   	}
   
   	public void DecPhysicalObjectsNum()
   	{
   		physicalObjectsNum--;
   	}
   }

3. Create a new Dummy Node called "level_manager" and place it somewhere in the world.Создайте новую Dummy Node с именем "level_manager" и поместите ее где-нибудь в мире.

4. Add the LevelManager component to the level_manager node.Добавьте компонент LevelManager к ноде level_manager.

   

We created the system GUI via the API from the code. The alternative method is to use UI files.Мы создали системный графический интерфейс с помощью API из кода. Альтернативный метод заключается в использовании файлов пользовательского интерфейса.

1. Open the KillZone component in your IDE, add a levelManager field and replace the content of Enter callback function according to the following code. Save your code in an IDE to ensure it's automatic compilation on switching back to UnigineEditor.Откройте KillZone component в вашей IDE, добавьте поле levelManager и замените содержимое функции обратного вызова Enter в соответствии со следующим кодом. Сохраните свой код в IDE, чтобы обеспечить его автоматическую компиляцию при возврате к UnigineEditor.

   KillZone.cs

   using System;
   using System.Collections;
   using System.Collections.Generic;
   using Unigine;
   
   [Component(PropertyGuid = "AUTOGENERATED_GUID")] // <-- this line is generated automatically for a new component
   public class KillZone : Component
   {
   	// the area into which an object should fall
   	WorldTrigger trigger;
   //========================== NEW - BEGIN ===============================
   	LevelManager levelManager;
   //=========================== NEW - END ================================
   	void Init()
   	{
   		trigger = node as WorldTrigger;
   
   		if (trigger != null)
   			trigger.EventEnter.Connect(Enter); // set the handler to be executed when an object enters the area
   	}
   
   	void Enter(Node target)
   	{
   //========================== NEW - BEGIN ===============================
   		levelManager = target.GetComponentInParent<LevelManager>();
   		// check if the parent node has a LevelManager component attached
   		if (levelManager != null)
   		{
   			// delete the entered node and decrease the amount of physical objects
   			levelManager.DecPhysicalObjectsNum();
   			target.DeleteLater();
   		}
   //=========================== NEW - END ================================
   	}
   }

2. Let's set the level_manager node as a parent to physical objects. Open the ObjectGenerator component in your IDE and replace the code with the following. Save the code in your IDE and switch back to UnigineEditor.Давайте установим ноду level_manager в качестве родительской ноды для физических объектов. Откройте компонент ObjectGenerator в вашей IDE и замените код следующим. Сохраните код в своей IDE и переключитесь обратно на UnigineEditor.

   ObjectGenerator.cs (C#)

   using System;
   using System.Collections;
   using System.Collections.Generic;
   using Unigine;
   
   [Component(PropertyGuid = "AUTOGENERATED_GUID")] // <-- this line is generated automatically for a new component
   public class ObjectGenerator : Component
   {
   //========================== NEW - BEGIN ===============================
   	public Node levelManager;
   //=========================== NEW - END ================================
   	private void Init()
   	{
   //========================== NEW - BEGIN ===============================
   		if (levelManager)
   		{
   //=========================== NEW - END ================================
   			// cube 
   			ObjectMeshDynamic box = Primitives.CreateBox(new vec3(1.0f));
   			//========================== NEW - BEGIN =============================
   			box.Parent = levelManager;
   			//========================== NEW - END ===============================
   			box.TriggerInteractionEnabled = true;
   			box.SetIntersection(true, 0);
   			box.SetIntersectionMask(0x00000080, 0); // check the BulletIntersection bit
   			box.WorldTransform = MathLib.Translate(new vec3(0.5f, 7.5f, 1.0f));
   			box.SetMaterialFilePath("materials/mesh_base_0.mat", "*");
   			box.Name = "box";
   			BodyRigid bodyBox = new BodyRigid(box);
   			ShapeBox shapeBox = new ShapeBox(bodyBox, new vec3(1.0f));
   			new ShapeSphere(bodyBox, 0.5f);
   			bodyBox.ShapeBased = false;
   			bodyBox.Mass = 2.0f;
   
   			// sphere
   			ObjectMeshDynamic sphere = Primitives.CreateSphere(0.5f, 9, 32);
   			//========================== NEW - BEGIN ===============================
   			sphere.Parent = levelManager;
   			//========================== NEW - END ===============================
   			sphere.TriggerInteractionEnabled = true;
   			sphere.SetIntersection(true, 0);
   			sphere.SetIntersectionMask(0x00000080, 0); // check the BulletIntersection bit
   			sphere.WorldTransform = MathLib.Translate(new vec3(4.5f, 5.5f, 1.0f));
   			sphere.SetMaterialFilePath("materials/mesh_base_1.mat", "*");
   			sphere.Name = "sphere";
   			BodyRigid bodySphere = new BodyRigid(sphere);
   			new ShapeSphere(bodySphere, 0.5f);
   			bodySphere.ShapeBased = false;
   			bodySphere.Mass = 2.0f;
   
   			// capsule
   			ObjectMeshDynamic capsule = Primitives.CreateCapsule(0.5f, 1.0f, 9, 32);
   			//========================== NEW - BEGIN ===============================
   			capsule.Parent = levelManager;
   			//========================== NEW - END ===============================
   			capsule.TriggerInteractionEnabled = true;
   			capsule.SetIntersection(true, 0);
   			capsule.SetIntersectionMask(0x00000080, 0); // check the BulletIntersection bit
   			capsule.WorldTransform = MathLib.Translate(new vec3(4.5f, 0.5f, 3.0f));
   			capsule.SetMaterialFilePath("materials/mesh_base_2.mat", "*");
   			capsule.Name = "capsule";
   			BodyRigid bodyCapsule = new BodyRigid(capsule);
   			new ShapeCapsule(bodyCapsule, 0.5f, 1.0f);
   			bodyCapsule.ShapeBased = false;
   			bodyCapsule.Mass = 2.0f;
   //========================== NEW - BEGIN ===============================
   		}
   //=========================== NEW - END ================================
   	}
   }

3. Select the object_generator node in the World Nodes window and drag the level_manager node to the corresponding field of the ObjectGenerator component.Выберите ноду object_generator в окне World Nodes и перетащите ноду level_manager в соответствующее поле компонента ObjectGenerator.

   

4. Save changes to the world, go to File->Save World or press Ctrl+S hotkey. Then run the game to see the game rules in action.Сохраните изменения в мире, перейдите к File->Save World или нажмите Ctrl+S. Затем запустите игру, чтобы увидеть геймплей в действии.