praca_magisterska/games/unreal/tutorial/part-6-game-director.md

Part 6: Create Game Director

← Previous: Part 5 - Create Enemy Spawner | Back to Index | Next: Part 7 - Score Manager / UI →

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Step 6.1: Create Game Director Blueprint

1. Content Browser → Blueprints

2. Right-click → Blueprint Class → Actor

3. Name: BP_GameDirector

4. Double-click to open

5. Create Variables:

Variable Name	Type	Default Value
PlayerReference	Object Reference to BP_Player	-
SpawnerReference	Object Reference to BP_EnemySpawner	-
GameDuration	Float	300.0
ElapsedTime	Float	0.0
GameActive	Boolean	true

Expected Result after Compile

• Compile button shows GREEN checkmark
• Variables panel shows all 5 variables with correct types
• No components needed (director is invisible logic actor)

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Step 6.2: Game Director Initialization

1. From Event BeginPlay

a) Find player in scene

• Get All Actors of Class → BP_Player
• Get first element (index 0)
• Set PlayerReference

b) Find spawner in scene

• Get All Actors of Class → BP_EnemySpawner
• Get first element
• Set SpawnerReference

c) Initialize ScoreManager

• Get ScoreManager reference
• Call RegisterGameStart with initial lives and duration

Expected Result after Compile

• Compile button shows GREEN checkmark
• BeginPlay event connected to "Get All Actors of Class" nodes

Expected Result in Play mode

• Game Director automatically finds Player, Spawner, and ScoreManager
• UI initializes with correct starting values (Lives: 3, Time: 05:00)

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Step 6.3: Game Director Update Logic

1. From Event Tick

a) Check if GameActive

• If false, skip everything

b) Update elapsed time

• Add DeltaSeconds to ElapsedTime

c) Calculate remaining time

• Subtract ElapsedTime from GameDuration
• Max with 0 (don't go negative)

d) Update UI timer

• Get ScoreManager
• Call UpdateTimer with remaining time

e) Check for victory

• If ElapsedTime >= GameDuration:
  • Set GameActive = false
  • Get SpawnerReference → Call StopSpawning
  • Get ScoreManager → Call HandleGameClear

2. CREATE "HandlePlayerDeath" FUNCTION

a) Inside

• Set GameActive = false
• Get SpawnerReference → Call StopSpawning
• Get ScoreManager → Call HandleGameOver

Expected Result after Compile

• Compile button shows GREEN checkmark
• "HandlePlayerDeath" function appears under Functions
• Event Tick connected to timer update and victory check

Expected Result in Play mode

• Timer counts down from 05:00 to 00:00
• At 00:00: "Mission Complete" appears, enemies stop spawning
• When player dies: "Game Over" appears, enemies stop spawning

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← Previous: Part 5 - Create Enemy Spawner | Back to Index | Next: Part 7 - Score Manager / UI →