11 Chain Event: Sequential Execution Pipeline

📋 Overview

While Trigger Events execute in parallel with conditional filtering, Chain Events execute in strict sequential order—one step at a time, like a production pipeline. If any node in the chain fails its condition, delays, or encounters an error, the entire sequence pauses or terminates. This is perfect for cutscenes, weapon launch sequences, tutorial steps, or any workflow where order matters.

💡 What You'll Learn

The difference between Chain (sequential) and Trigger (parallel) execution
How to use condition nodes as validation gates
Delay nodes for timed pauses in sequences
Wait-for-completion for asynchronous operations
Early termination patterns when conditions fail

🎬 Demo Scene

Assets/TinyGiants/GameEventSystem/Demo/11_ChainEvent/11_ChainEvent.unity

Scene Composition

Visual Elements:

🔴 Turret_A (Left) - Red launcher
🔵 Turret_B (Right) - Blue launcher
🎯 TargetDummy - Center capsule target
📺 HoloDisplay - Status display panel
- Shows "SAFELOCK READY" when safety is off
- Shows "SAFELOCK ACTIVED" when safety is on

UI Layer (Canvas):

🎮 Three Buttons - Bottom of the screen
- "Launch A" → Triggers ChainEventRaiser.RequestLaunchA()
- "Launch B" → Triggers ChainEventRaiser.RequestLaunchB()
- "Toggle SafeLock" (Orange) → Triggers ChainEventReceiver.ToggleSafetyLock()

Game Logic Layer:

📤 ChainEventRaiser - Sequence initiator
- Only references ONE entry point: 0_StartSequence
- No knowledge of downstream pipeline steps
📥 ChainEventReceiver - Step executor
- Contains 5 methods for each pipeline stage
- Exposes IsSafetyCheckPassed property for condition validation
- Contains isSafetyLockDisengaged flag (toggle-able)

🎮 How to Interact

The 5-Step Launch Protocol

One root event (0_StartSequence) triggers a sequential pipeline with validation, delays, and async waiting.

Step 1: Enter Play Mode

Press the Play button in Unity.

Initial State:

Safety lock: DISENGAGED (default)
HoloDisplay: "SAFELOCK READY"
Both turrets idle

Step 2: Test Successful Launch (Safety Off)

Current State Check:

Ensure HoloDisplay shows "SAFELOCK READY"
If not, click "Toggle SafeLock" to turn safety OFF

Click "Launch A":

Sequential Execution:

[Step 1: System Check] - Immediate

🔍 Condition Node evaluates ChainEventReceiver.IsSafetyCheckPassed property
Property checks isSafetyLockDisengaged flag
Result: TRUE ✅
Console: [Chain Step 1] Turret_A Checking...
Chain proceeds to Step 2

[Step 2: Charge] - 1.0s Delay

⏱️ Delay Node pauses execution for 1.0 second
VFX: Charging particle effect spawns at turret
Console: [Chain Step 2] Turret_A Charging...
Graph waits exactly 1.0s before continuing
After delay, chain proceeds to Step 3

[Step 3: Fire] - Immediate

🚀 Projectile instantiated and launched toward target
Muzzle flash VFX at turret
Console: [Chain Step 3] Turret_A FIRED payload: 500
Projectile travels to target
Chain immediately proceeds to Step 4

[Step 4: Cool Down] - Wait For Completion

💨 Steam VFX particle system spawns
🕐 Wait Node - Graph pauses until VFX completes (2.0s)
Console: [Chain Step 4] Turret_A Cooldowning.
Unlike delay (fixed time), this waits for actual VFX completion
After steam finishes, chain proceeds to Step 5

[Step 5: Archive] - Immediate (Arguments Blocked)

📝 Final logging step
PassArgument = FALSE in graph → receives default/null values
Console: [Chain Step 5] Archived. Data Status: CLEAN
Turret unlocked for next use
Chain completes successfully ✅

Timeline:

0s  → Step 1: System Check (instant)
0s  → Step 2: Charge starts
0s  → Step 3: Fire (after charge delay)
0s  → Step 4: CoolDown starts
0s  → Step 5: Archive (after steam VFX ~2s)
0s  → Sequence complete

Result: ✅ Full 5-step launch sequence executed successfully.

Step 3: Test Failed Launch (Safety On)

Click "Toggle SafeLock":

Safety flag changes: isSafetyLockDisengaged = false
HoloDisplay updates: "SAFELOCK ACTIVED"
UI button color changes to orange (visual warning)
Console: [Chain Settings] Safety Lock Disengaged: False

Click "Launch B":

Sequential Execution:

[Step 1: System Check] - FAILS ❌

🔍 Condition Node evaluates ChainEventReceiver.IsSafetyCheckPassed
Property checks isSafetyLockDisengaged → finds FALSE
Property executes failure feedback:
- 🚨 Red alarm vignette flashes 3 times
- Alarm sound plays
- Console: [Chain Blocked] Safety Check Failed. Sequence stopped immediately.
Condition returns FALSE
🛑 CHAIN TERMINATES HERE

[Steps 2-5] - NEVER EXECUTE

❌ No charging VFX
❌ No projectile fired
❌ No steam cooldown
❌ No archive log

Result: ❌ Launch aborted at gate. Steps 2-5 never ran.

🔴 Critical Chain Behavior

When a Chain node's condition fails:

Immediate Termination - Execution stops at that node
No Downstream Execution - Subsequent nodes never run
No Partial Completion - All-or-nothing behavior
Early Cleanup - Resources unlocked immediately

This is fundamentally different from Trigger Events, where failed conditions just skip individual branches while others continue.

🏗️ Scene Architecture

Chain vs Trigger: The Fundamental Difference

Trigger Event (Parallel):

⚡ Root Event: OnInteraction
│
├─ 🔱 Branch A: [ 🛡️ Guard: `HasKey == true` ]
│  └─ 🚀 Action: OpenDoor() ➔ ✅ Condition Passed: Executing...
│
├─ 🔱 Branch B: [ 🛡️ Guard: `PlayerLevel >= 10` ]
│  └─ 🚀 Action: GrantBonusXP() ➔ ❌ Condition Failed: Branch Skipped
│
└─ 🔱 Branch C: [ 🛡️ Guard: `Always True` ]
   └─ 🚀 Action: PlaySound("Click") ➔ ✅ Condition Passed: Executing...
│
📊 Summary: 2 Paths Executed | 1 Path Skipped | ⚡ Timing: Concurrent

Chain Event (Sequential):

🏆 Initiation: Root Event
│
├─ 1️⃣ [ Step 1 ] ➔ 🛡️ Guard: `Condition A`
│  └─ ⏳ Status: WAIT for completion... ✅ Success
│
├─ 2️⃣ [ Step 2 ] ➔ 🛡️ Guard: `Condition B`
│  └─ ⏳ Status: WAIT for completion... ✅ Success
│
├─ 3️⃣ [ Step 3 ] ➔ 🛡️ Guard: `Condition C`
│  └─ ⏳ Status: WAIT for completion... ❌ FAILED!
│
└─ 🛑 [ TERMINATED ] ➔ Logic Chain Halts
   └─ ⏭️ Step 4: [ SKIPPED ]
│
📊 Final Result: Aborted at Step 3 | ⏳ Mode: Strict Blocking

When to Use Each:

Pattern	Use Chain	Use Trigger
Cutscene	✅ Sequential shots	❌ Steps out of order
Combat System	❌ Rigid order not needed	✅ Parallel systems
Tutorial	✅ Must finish step 1 before step 2	❌ Steps can overlap
Weapon Charge	✅ Charge → Fire → Cooldown	❌ Order matters
Achievement	❌ Independent checks	✅ Multiple triggers

Event Definitions

Game Event Editor

Event Name	Type	Role	Step
`0_StartSequence`	`GameEvent<GameObject, DamageInfo>`	Root (Gold)	Entry
`1_SystemCheck`	`GameEvent<GameObject, DamageInfo>`	Chain (Green)	1
`2_Charge`	`GameEvent<GameObject, DamageInfo>`	Chain (Green)	2
`3_Fire`	`GameEvent<GameObject, DamageInfo>`	Chain (Green)	3
`4_CoolDown`	`GameEvent<GameObject, DamageInfo>`	Chain (Green)	4
`5_Archive`	`GameEvent<GameObject, DamageInfo>`	Chain (Green)	5

Key Insight:

Root raises the chain
Chain nodes auto-trigger sequentially
Code only calls .Raise() on root—graph handles rest

Flow Graph Configuration

Click "Flow Graph" button to visualize the sequential pipeline:

Flow Graph Overview

Graph Structure (Left to Right):

Node 1: 0_StartSequence (Root, Red)

Entry point raised by code
Type: GameEvent<GameObject, DamageInfo>
Connects to first chain node

Node 2: 1_SystemCheck (Chain, Green)

✅ Condition Node - Gate keeper
Condition: ChainEventReceiver.IsSafetyCheckPassed == true
- Evaluates scene object property at runtime
- If false → chain breaks immediately
Action: ChainEventReceiver.OnSystemCheck(sender, args)
Green checkmark icon indicates condition enabled
PassArgument: ✓ Pass (full data forwarded)

Node 3: 2_Charge (Chain, Green)

⏱️ Delay Node - Timed pause
Delay: 1.0 seconds (shown as ⏱️ 1s icon)
Action: ChainEventReceiver.OnStartCharging(sender, args)
Graph freezes here for exactly 1 second
PassArgument: ✓ Pass

Node 4: 3_Fire (Chain, Green)

🎯 Action Node - Standard execution
Action: ChainEventReceiver.OnFireWeapon(sender, args)
No delay, no condition
Executes immediately after previous step
PassArgument: ✓ Pass

Node 5: 4_CoolDown (Chain, Green)

🕐 Wait Node - Async completion
Delay: 0.5s (minimum wait)
WaitForCompletion: ✓ Checked (shown as ⏱️ 1s icon)
- Graph waits for receiver coroutine to finish
- Not a fixed timer—waits for actual completion signal
Action: ChainEventReceiver.OnCoolDown(sender, args)
PassArgument: ✓ Pass

Node 6: 5_Archive (Chain, Green)

🔒 Filter Node - Data sanitization
Action: ChainEventReceiver.OnSequenceArchived(sender, args)
PassArgument: 🔴 Static (argument blocked)
- Even though previous nodes passed full data
- This node receives default/null values
- Demonstrates data firewall at end of chain
Final step—no downstream nodes

Connection Lines:

🟢 Green "CHAIN" lines - Sequential flow
- Each output port connects to next input port
- Linear topology—no branching
- Execution follows line left-to-right

Legend:

🔴 Root Node - Entry point (raised by code)
🟢 Chain Node - Auto-triggered in sequence
✅ Checkmark Icon - Condition enabled
⏱️ Clock Icon - Delay or wait configured
🔒 Static Icon - Arguments blocked

🎨 Visual Pipeline Benefits

The Chain Graph provides instant understanding of:

Sequential Order - Left-to-right flow shows exact execution order
Validation Gates - Condition nodes act as checkpoints
Timing Control - Delay/wait icons show pause points
Data Flow - PassArgument toggles show where data is filtered
Failure Points - Condition nodes show where chain can break

This is infinitely cleaner than reading a coroutine with nested yield return statements!

Sender Setup (ChainEventRaiser)

Select the ChainEventRaiser GameObject:

ChainEventRaiser Inspector

Chain Entry Point:

Sequence Start Event: 0_StartSequence
- Tooltip: "The Start Node of the Chain Graph"
- Only references the root—downstream is handled by graph

Turrets:

Turret A: Turret_A (GameObject), Head A (Transform)
Turret B: Turret_B (GameObject), Head B (Transform)

Targeting:

Hit Target: TargetDummy (Transform)

Critical Observation: Like Trigger demos, sender only knows about ONE event. The 5-step pipeline is completely abstracted into the graph.

Receiver Setup (ChainEventReceiver)

Select the ChainEventReceiver GameObject:

ChainEventReceiver Inspector

Scene References:

Chain Event Raiser: ChainEventRaiser (for unlock callbacks)
Holo Text: LogText (TextMeshPro) - displays lock status

Target References:

Target Dummy, Target Rigidbody

VFX & Projectiles:

Projectile Prefab: Projectile (TurretProjectile)
Charge VFX: TurretBuffAura (Particle System) - step 2
Fire VFX: MuzzleFlashVFX (Particle System) - step 3
Steam VFX: SteamVFX (Particle System) - step 4
Hit Normal/Crit VFX, Floating Text Prefab

Audio:

Hit Clip, UI Clip, Alarm Clip

Screen:

Screen Group: AlarmVignette (CanvasGroup) - red flash on failure

Simulation Settings:

✅ Is Safety Lock Disengaged: TRUE (default)
- Controls whether Step 1 condition passes
- Toggle-able via "Toggle SafeLock" button

💻 Code Breakdown

📤 ChainEventRaiser.cs (Sender)

using UnityEngine;
using TinyGiants.GameEventSystem.Runtime;

public class ChainEventRaiser : MonoBehaviour
{
    [Header("Chain Entry Point")]
    [Tooltip("The Start Node of the Chain Graph.")]
    [GameEventDropdown]
    public GameEvent<GameObject, DamageInfo> sequenceStartEvent;

    [Header("Turrets")] 
    public GameObject turretA;
    public GameObject turretB;
    // ... head transforms ...

    private bool _isBusyA;
    private bool _isBusyB;

    /// <summary>
    /// UI Button A: Request Launch for Turret A.
    /// 
    /// CRITICAL: Only raises the ROOT event.
    /// The Chain Graph orchestrates all 5 downstream steps automatically.
    /// </summary>
    public void RequestLaunchA()
    {
        if (sequenceStartEvent == null) return;

        Debug.Log("<color=cyan>[Raiser] Requesting Launch Protocol A...</color>");
        _isBusyA = true;

        // Build the data payload
        DamageInfo info = new DamageInfo(500f, true, DamageType.Physical, 
                                        hitTarget.position, "Commander");
        
        // THE MAGIC: Single .Raise() starts entire 5-step chain
        // Graph automatically executes:
        // 1. System Check (with condition)
        // 2. Charge (with 1s delay)
        // 3. Fire (immediate)
        // 4. Cool Down (with wait-for-completion)
        // 5. Archive (with blocked arguments)
        sequenceStartEvent.Raise(turretA, info);
    }

    /// <summary>
    /// UI Button B: Request Launch for Turret B.
    /// Same logic, different turret.
    /// </summary>
    public void RequestLaunchB()
    {
        if (sequenceStartEvent == null) return;

        Debug.Log("<color=orange>[Raiser] Requesting Launch Protocol B...</color>");
        _isBusyB = true;

        DamageInfo info = new DamageInfo(200f, false, DamageType.Physical, 
                                        hitTarget.position, "Commander");
        sequenceStartEvent.Raise(turretB, info);
    }

    // Unlock methods called by receiver when sequence completes or fails
    public void UnlockTurretA() => _isBusyA = false;
    public void UnlockTurretB() => _isBusyB = false;
}

Key Points:

🎯 Single Event Reference - Only knows root event
📡 Zero Pipeline Knowledge - No idea about 5 steps
🔓 Unlock Callbacks - Receiver signals completion/failure
🎬 Maximum Decoupling - All sequence logic in graph

📥 ChainEventReceiver.cs (Listener)

using UnityEngine;
using System.Collections;

public class ChainEventReceiver : MonoBehaviour
{
    [Header("Simulation Settings")]
    [Tooltip("If TRUE, passes check. If FALSE, chain breaks at Step 1.")]
    public bool isSafetyLockDisengaged = true;

    /// <summary>
    /// Property accessed by '1_SystemCheck' Node Condition.
    /// 
    /// Graph configuration: Scene Object → Property → IsSafetyCheckPassed
    /// 
    /// CRITICAL: This is evaluated BEFORE the node action executes.
    /// If this returns false, the chain terminates immediately.
    /// </summary>
    public bool IsSafetyCheckPassed
    {
        get
        {
            bool result = true;

            if (!isSafetyLockDisengaged)
            {
                // FAIL PATH: Safety lock is engaged
                result = false;
                
                Debug.LogWarning(
                    "<color=red>[Chain Blocked] Safety Check Failed. " +
                    "Sequence stopped immediately.</color>");
                
                // Visual feedback for failure
                StopCoroutine(nameof(ScreenRoutine));
                if (screenGroup) StartCoroutine(ScreenRoutine());
            }

            return result;
        }
    }

    /// <summary>
    /// Toggles the safety lock status. Bind this to UI Button.
    /// </summary>
    public void ToggleSafetyLock()
    {
        if (UIClip) _audioSource.PlayOneShot(UIClip);
        
        isSafetyLockDisengaged = !isSafetyLockDisengaged;
        
        // Update UI
        string text = isSafetyLockDisengaged ? "SAFELOCK READY" : "SAFELOCK ACTIVED";
        if (holoText) holoText.text = text;

        Debug.Log($"[Chain Settings] Safety Lock Disengaged: {isSafetyLockDisengaged}");
    }

    /// <summary>
    /// [Chain Step 1] System Check
    /// Bound to '1_SystemCheck' chain node.
    /// 
    /// Note: This action runs AFTER the condition passed.
    /// If condition failed, this method never executes.
    /// </summary>
    public void OnSystemCheck(GameObject sender, DamageInfo args)
    {
        bool isA = sender != null && sender.name.Contains("Turret_A");
        
        // If we reach here, condition passed
        // But we still handle potential edge cases
        if (!IsSafetyCheckPassed)
        {
            // Unlock turret since sequence failed
            if (isA) chainEventRaiser.UnlockTurretA();
            else chainEventRaiser.UnlockTurretB();
        }

        Debug.Log($"[Chain Step 1] {sender.name} Checking...");
    }

    /// <summary>
    /// [Chain Step 2] Charge
    /// Bound to '2_Charge' chain node with 1.0s delay.
    /// 
    /// The graph pauses for 1 second BEFORE calling this method.
    /// When this executes, 1.0s has already elapsed.
    /// </summary>
    public void OnStartCharging(GameObject sender, DamageInfo args)
    {
        if (chargeVFX)
        {
            var vfx = Instantiate(chargeVFX, sender.transform.position + Vector3.up * 1.5f, 
                                 Quaternion.identity);
            vfx.transform.SetParent(sender.transform);
            vfx.Play();
            Destroy(vfx.gameObject, 1.2f);
        }

        Debug.Log($"[Chain Step 2] {sender.name} Charging...");
    }

    /// <summary>
    /// [Chain Step 3] Fire
    /// Bound to '3_Fire' chain node.
    /// 
    /// Spawns projectile and launches toward target.
    /// This executes immediately after Step 2 completes.
    /// </summary>
    public void OnFireWeapon(GameObject sender, DamageInfo args)
    {
        // Spawn muzzle flash
        if (fireVFX)
        {
            Vector3 spawnPos = sender.transform.position + 
                             sender.transform.forward * 1.5f + Vector3.up * 1.5f;
            var vfx = Instantiate(fireVFX, spawnPos, sender.transform.rotation);
            vfx.Play();
            Destroy(vfx.gameObject, 2.0f);
        }

        // Launch projectile
        if (projectilePrefab != null)
        {
            var muzzlePos = sender.transform.Find("Head/Barrel/MuzzlePoint");
            var shell = Instantiate(projectilePrefab, muzzlePos.position, 
                                   sender.transform.rotation);

            shell.Initialize(args.hitPoint, 20f, () =>
            {
                // Impact callback
                if (hitClip) _audioSource.PlayOneShot(hitClip);
                
                // Spawn hit VFX, floating text, apply physics...
                ParticleSystem vfxToPlay = args.isCritical ? hitCritVFX : hitNormalVFX;
                
                if (args.isCritical)
                    StartCoroutine(ShakeCameraRoutine(0.2f, 0.4f));
                
                // ... (VFX, physics, text logic) ...
            });
        }

        Debug.Log($"[Chain Step 3] {sender.name} FIRED payload: {args.amount}");
    }

    /// <summary>
    /// [Chain Step 4] Cool Down
    /// Bound to '4_CoolDown' chain node with WaitForCompletion.
    /// 
    /// The graph waits for this coroutine to finish before proceeding to Step 5.
    /// Unlike delay (fixed time), this waits for actual task completion.
    /// </summary>
    public void OnCoolDown(GameObject sender, DamageInfo args)
    {
        if (steamVFX)
        {
            var vfx = Instantiate(steamVFX, sender.transform.position + Vector3.up, 
                                 Quaternion.Euler(-90, 0, 0));
            vfx.Play();
            Destroy(vfx.gameObject, 2.0f);
        }

        Debug.Log($"[Chain Step 4] {sender.name} Cooldowning.");
    }

    /// <summary>
    /// [Chain Step 5] Archive
    /// Bound to '5_Archive' chain node with PassArgument = FALSE.
    /// 
    /// CRITICAL: Even though previous steps passed full DamageInfo,
    /// this node receives DEFAULT/NULL values due to graph configuration.
    /// 
    /// Demonstrates data firewall—can sanitize sensitive data at end of chain.
    /// </summary>
    public void OnSequenceArchived(GameObject sender, DamageInfo args)
    {
        bool isA = sender != null && sender.name.Contains("Turret_A");

        // Unlock turret for next use
        if (isA) chainEventRaiser.UnlockTurretA();
        else chainEventRaiser.UnlockTurretB();

        // Check if data was successfully blocked
        bool isClean = (args == null || args.amount == 0);
        string logMsg = isClean ? "<color=cyan>CLEAN</color>" : "<color=red>LEAKED</color>";

        Debug.Log($"[Chain Step 5] Archived. Data Status: {logMsg}");
    }

    private IEnumerator ScreenRoutine()
    {
        // Red alarm vignette flash animation
        int flashes = 3;
        float flashDuration = 0.5f;

        for (int i = 0; i < flashes; i++)
        {
            if (alarmClip) _audioSource.PlayOneShot(alarmClip);
            
            // Sine wave alpha animation
            float t = 0f;
            while (t < flashDuration)
            {
                t += Time.deltaTime;
                float alpha = Mathf.Sin((t / flashDuration) * Mathf.PI);
                screenGroup.alpha = alpha * 0.8f;
                yield return null;
            }

            screenGroup.alpha = 0f;
            yield return new WaitForSeconds(0.1f);
        }
    }
}

Key Points:

🎯 5 Independent Methods - Each handles one pipeline stage
✅ Property for Condition - IsSafetyCheckPassed evaluated by graph
⏱️ Timing Agnostic - Methods don't know about delays
🔒 Data Firewall - Step 5 receives sanitized data
🎬 Completion Callbacks - Unlocks turrets on success/failure

🔑 Key Takeaways

Concept	Implementation
🔗 Sequential Execution	Nodes execute one-by-one in strict order
✅ Validation Gates	Condition nodes terminate chain if failed
⏱️ Delay Nodes	Fixed-time pauses between steps
🕐 Wait Nodes	Async completion waiting (not fixed time)
🔒 Data Filtering	PassArgument controls data flow per node
🛑 Early Termination	Failed condition stops entire chain
🎯 All-or-Nothing	Chain completes fully or terminates early

🎓 Design Insight

Chain Events are perfect for:

Cutscenes - Shot 1 → Shot 2 → Shot 3 in exact order
Weapon Sequences - Charge → Fire → Cooldown → Reload
Tutorial Steps - Must complete step N before step N+1
Crafting Recipes - Sequential ingredient addition
Boss Phases - Phase transitions with validation
Spell Casting - Channeling → Cast → Effect → Recovery

Chain vs Coroutine: Instead of writing:

IEnumerator LaunchSequence()
{
    if (!SafetyCheck()) yield break;
    Charge();
    yield return new WaitForSeconds(1.0f);
    Fire();
    yield return StartCoroutine(CoolDown());
    Archive();
}

Use a Chain Graph where:

Timing is visible and editable by designers
Conditions are visual checkpoints, not hidden if statements
Async waits are configurable, not hardcoded
Entire pipeline is debuggable via graph visualization

⚠️ Chain Gotchas

Blocking Behavior: If Step 3 has a bug and never completes, Steps 4-5 never run
Condition Timing: Conditions evaluate BEFORE node action—can't use action's side effects
No Parallel Branches: Can't execute Step 2A and Step 2B simultaneously (use Trigger for that)
Delay Stacking: Multiple delays add up—3 nodes with 1s each = 3s total wait
Early Exit Cleanup: Always unlock resources in condition failure paths

🎯 What's Next?

You've mastered sequential chain execution. The examples series continues with more advanced patterns.

Next Chapter: Continue exploring advanced demos in 12 Multi Database

Flow Graph Editor - Edit Node Flow Graph
Node & Connector - Understand the visual language of the graph
Node Behavior - Node configuration and conditions
Advanced Logic Patterns - How the system executes Triggers versus Chains
Programmatic Flow - How to Implement Process Control via FlowGraph API
Best Practices - Architectural patterns for complex systems

📋 Overview​

🎬 Demo Scene​

Scene Composition​

🎮 How to Interact​

The 5-Step Launch Protocol​

Step 1: Enter Play Mode​

Step 2: Test Successful Launch (Safety Off)​

Step 3: Test Failed Launch (Safety On)​

🏗️ Scene Architecture​

Chain vs Trigger: The Fundamental Difference​

Event Definitions​

Flow Graph Configuration​

Sender Setup (ChainEventRaiser)​

Receiver Setup (ChainEventReceiver)​

💻 Code Breakdown​

📤 ChainEventRaiser.cs (Sender)​

📥 ChainEventReceiver.cs (Listener)​

🔑 Key Takeaways​

🎯 What's Next?​

📚 Related Documentation​