Player Death & Respawn System - Setup Guide

📋 Overview

A complete death and respawn system has been implemented for your dungeon crawler. The system features:

✅ Automatic death detection when all party members die
✅ Smooth fade transitions between death and respawn
✅ Checkpoint system to save progress
✅ Death screen UI with respawn button
✅ Full party restoration (HP, stamina, mana)
✅ Optional penalties (configurable)

🎮 How It Works

Death Flow:

Character HP reaches 0 → Character dies and UI card is removed
All party members dead → Party wipe detected
Screen fades to black (smooth transition)
Death screen appears with respawn button
Player clicks Respawn → Teleports to last checkpoint
Party fully restored → All characters revived with full HP/stamina
Fade back in → Gameplay resumes

Checkpoint System:

Checkpoints save: Player position, party state, character stats
Respawning loads the last checkpoint
Initial checkpoint saved automatically 2 seconds after game start

🛠️ Unity Setup Instructions

Step 1: Create Required GameObjects

In your Unity scene hierarchy, create these GameObjects:

1. GameManager (Main Controller)

1. Create Empty GameObject: "GameManager"
2. Add Component: GameManager.cs
3. In Inspector, assign:
   - Team Cohesion Manager (reference from scene)
   - Checkpoint System (create next)
   - Death Screen UI (create later)
   - Player Movement (GridMovement component on player)
4. Configure settings:
   - Death Delay: 2 seconds (default)
   - Respawn Fade Time: 1 second
   - Reset Monsters On Respawn: ☐ (optional)
   - Apply Gold Penalty: ☐ (disabled by default)

2. CheckpointSystem

1. Create Empty GameObject: "CheckpointSystem"
2. Add Component: CheckpointSystem.cs
3. In Inspector, assign:
   - Cohesion Manager (reference from scene)
   - Player Transform (your player GameObject)
   - Player Movement (GridMovement component)
4. Settings:
   - Auto Save On Checkpoint: ☑ (enabled)
   - Checkpoint Radius: 3 meters

3. DeathScreenUI

1. Create Empty GameObject: "DeathScreenUI"
2. Add Component: DeathScreenUI.cs
3. The script will auto-create the UI if not manually designed
4. Optional: Customize death messages in Inspector array
5. Settings:
   - Fade In Duration: 1 second
   - Randomize Message: ☑ (enabled)

Step 2: Create Checkpoint Zones (Optional)

To add checkpoint zones throughout your dungeon:

1. Create Empty GameObject at desired checkpoint location
2. Name it: "Checkpoint_01" (or descriptive name)
3. Add Component: BoxCollider
4. Add Component: CheckpointTrigger.cs
5. In Inspector:
   - Box Collider: Set size (e.g., 5x3x5) and mark as Trigger
   - Show Visual Feedback: ☑
   - One Time Use: ☑ (recommended)
   - Checkpoint Message: "Safe Zone Reached"
6. Tag the object as "Checkpoint" (optional)

Note: Yellow wireframe cube shows checkpoint location in Scene view.

Step 3: Update Existing Components

Your existing scripts have been updated automatically:

✅ CharacterUIController.cs - Now notifies GameManager on party wipe
✅ GameInitializer.cs - Saves initial checkpoint on game start

Step 4: Player Setup

Ensure your Player GameObject has:

✅ Tag: "Player" (important!)
✅ Rigidbody or CharacterController
✅ Collider for checkpoint triggers

Step 5: Testing

Test Death:

Enter Play Mode
Wait 2 seconds (initial checkpoint saves)
Let monsters kill all party members
Death screen should appear after 2 second delay
Click "RESPAWN" button
Party should respawn at starting position, fully healed

Test Checkpoint:

Create a checkpoint trigger in your scene
Walk player through it
Console should show "Checkpoint Saved"
Move away and die
Should respawn at checkpoint location

⚙️ Configuration Options

GameManager Settings:

Setting	Default	Description
Death Delay	2s	Time before death screen appears
Respawn Fade Time	1s	Duration of fade transition
Reset Monsters On Respawn	false	Respawn all monsters (harder)
Apply Gold Penalty	false	Lose gold percentage on death
Gold Penalty Percent	0%	How much gold to lose

CheckpointSystem Settings:

Setting	Default	Description
Auto Save On Checkpoint	true	Save when entering checkpoint zones
Checkpoint Radius	3m	Trigger distance for checkpoints

CheckpointTrigger Settings:

Setting	Default	Description
Show Visual Feedback	true	Play effects on activation
One Time Use	false	Only trigger once per checkpoint
Checkpoint Message	Custom	Log message on save

🎨 Customization

Custom Death Screen UI

If you want to design your own death screen instead of the auto-generated one:

1. Create Canvas → Panel in UI
2. Add background image (dark/ominous)
3. Add TextMeshPro text for death message
4. Add Button with "RESPAWN" text
5. Add CanvasGroup to panel
6. Assign references in DeathScreenUI Inspector:
   - Death Panel: Your panel GameObject
   - Death Message Text: Your TextMeshPro text
   - Respawn Button: Your button
   - Canvas Group: CanvasGroup component

Custom Checkpoint Visual Effects

Add visual flair to checkpoints:

1. Create particle effect prefab (glowing portal, sparkles, etc.)
2. Assign to CheckpointTrigger → Checkpoint VFX
3. Add checkpoint sound effect AudioClip
4. Effects play automatically when triggered

Custom Death Penalties

Enable penalties for hardcore mode:

// In GameManager Inspector:
Apply Gold Penalty: ☑
Gold Penalty Percent: 10-50%

// Or extend GameManager.cs to add custom penalties:
private void ApplyGoldPenalty()
{
    // Your custom penalty logic
    // Examples:
    // - Lose items
    // - Reduce experience
    // - Drop equipped weapons
}

🔧 Advanced Features

Manual Checkpoint Saving

Call from your own scripts:

// Save checkpoint at current position
CheckpointSystem.Instance.SaveCheckpoint();

// Save checkpoint at specific location
CheckpointSystem.Instance.SaveCheckpointAt(position, rotation);

Check If Player Is Dead

if (GameManager.Instance.IsPlayerDead())
{
    // Disable certain features during death
}

Force Respawn

// Trigger respawn manually
GameManager.Instance.RespawnParty();

📝 Scene Hierarchy Example

Scene
├── GameManager (GameManager.cs)
├── CheckpointSystem (CheckpointSystem.cs)
├── DeathScreenUI (DeathScreenUI.cs)
├── Player
│   └── [GridMovement, TeamCohesionManager, etc.]
├── Canvas (UI)
│   └── PartyUIManager
├── Dungeon
│   ├── Checkpoint_Entrance (CheckpointTrigger)
│   ├── Checkpoint_MidLevel (CheckpointTrigger)
│   └── Checkpoint_Boss (CheckpointTrigger)
└── Monsters

🐛 Troubleshooting

Problem: Death screen doesn't appear

Solution: Check that GameManager is in scene and DeathScreenUI is assigned.

Problem: Respawn doesn't restore party

Solution: Ensure CheckpointSystem is assigned to GameManager and initial checkpoint was saved.

Problem: Checkpoints don't trigger

Solution:

Player must have "Player" tag
CheckpointTrigger BoxCollider must be marked as Trigger
CheckpointTrigger collider must be large enough

Problem: UI doesn't rebuild after respawn

Solution: Make sure PartyUIManager exists in scene and is properly referenced.

Problem: Player falls through floor on respawn

Solution: Ensure saved checkpoint position has valid ground underneath.

📊 System Architecture

┌─────────────────┐
│ MonsterAttack   │ Deals damage to character
└────────┬────────┘
         │
         ▼
┌─────────────────────┐
│ CharacterUIController│ Detects HP ≤ 0
└────────┬────────────┘
         │
         ▼
┌──────────────────┐
│ TeamCohesion     │ Checks if all dead
│ Manager          │
└────────┬─────────┘
         │
         ▼
┌──────────────────┐
│ GameManager      │ Orchestrates death/respawn
└────────┬─────────┘
         │
         ├─► Fade to Black
         ├─► Show Death Screen
         └─► On Respawn Click
                  │
                  ▼
          ┌──────────────────┐
          │ CheckpointSystem │ Restore party & position
          └──────────────────┘

✅ Quick Checklist

Before testing, verify:

GameManager in scene with all references assigned
CheckpointSystem in scene with player reference
DeathScreenUI in scene (can be empty, auto-creates UI)
Player GameObject has "Player" tag
GameInitializer saves initial checkpoint
At least one checkpoint exists in scene (or initial checkpoint saves)
All scripts compiled without errors

🎯 Next Steps

Enhancement Ideas:

Add checkpoint visual markers (glowing pillars, flags)
Create safe zone audio ambiance
Add "lives" system (3 respawns before game over)
Implement permadeath hardcore mode
Add respawn animation sequences
Create checkpoint UI indicator (minimap marker)
Add respawn countdown timer
Implement death statistics (death counter, causes)

📞 Support

If you encounter issues:

Check Unity Console for error messages (prefix: [GameManager], [CheckpointSystem], [Death])
Verify all GameObjects exist in scene hierarchy
Ensure all references are assigned in Inspector
Check that scripts are attached to correct GameObjects

All debug logs are prefixed with system name for easy filtering.

System Version: 1.0
Created: October 2025
Compatible with: Unity 2021.3+

Enjoy your robust respawn system! 🎮✨

RESPAWN_SYSTEM_SETUP.md 10 KB Lịch sử Raw