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Platform game character selection causing level order issues

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GD

GameDevStudent

Posted on July 20, 2024 • Beginner

🎮 URGENT: Platform game breaking after adding character selection!

Hey everyone! I’m working on a computing assignment that’s due tomorrow and I’m running into a major issue. I added a character selection feature to my platform game so players can choose different characters, which looks really cool and works fine initially.

The Problem:

  • When you start playing, the platform order gets completely mixed up
  • Level progression becomes chaotic and unpredictable
  • Everything was working perfectly before I added the character options

I can’t figure out what’s causing this issue and I’m getting really frustrated because I can’t see any obvious problems in my code. The deadline is approaching fast and I really need help! 😰

Project Link: https://scratch.mit.edu/projects/1008366886

PG

PlatformGuru

Replied 30 minutes later • ⭐ Best Answer

Don’t panic @GameDevStudent! This is a very common issue when adding character selection to platform games. I can help you debug this step by step.

🔍 Common Causes of Platform/Level Mixing

Here’s what usually causes this problem:

flowchart TD A[🎮 Character Selection] --> B{Variable Scope Issue?} B -->|Yes| C[🔧 Global vs Local Variables] B -->|No| D{Sprite Cloning Problem?} C --> E[Platform positions reset incorrectly] D -->|Yes| F[🎭 Clone Management Issues] D -->|No| G{Costume/Character Switch?} F --> H[Multiple platform instances] G -->|Yes| I[🎨 Costume Change Conflicts] E --> J[🛠️ Fix Variable Scope] H --> K[🧹 Clean Up Clones] I --> L[🔄 Separate Character Logic] J --> M[✅ Problem Solved] K --> M L --> M style A fill:#e1f5fe style M fill:#e8f5e8 style C fill:#ffebee style F fill:#fff3e0 style I fill:#f3e5f5

🛠️ Step 1: Check Variable Scope

The most common issue is that platform position variables are getting reset when switching characters. Make sure your platform variables are set to “For all sprites”:

    when flag clicked
// Make sure these are global variables
set [Platform1_X v] to [100]
set [Platform1_Y v] to [50]
set [Platform2_X v] to [200]
set [Platform2_Y v] to [100]

🎭 Step 2: Separate Character and Platform Logic

Keep character selection separate from platform generation:

    // In your main game sprite
when flag clicked
broadcast [Setup Platforms v]
wait until <(Character Selected) = [true]>
broadcast [Start Game v]

// Character selection should NOT affect platforms
when I receive [Character Selected v]
if <(Selected Character) = [1]> then
switch costume to [character1 v]
else
switch costume to [character2 v]
end

🧹 Step 3: Clean Up Clone Management

If you’re using clones for platforms, make sure to delete old ones properly:

    // Before creating new platforms
broadcast [Delete All Platform Clones v]
wait [0.1] seconds
// Then create new platforms
broadcast [Create Platforms v]

// In platform sprite
when I receive [Delete All Platform Clones v]
if <(clone?) = [true]> then
delete this clone
end

🔧 Step 4: Debug Checklist

  • ✅ Are platform variables global (“For all sprites”)?
  • ✅ Does character selection happen BEFORE platform setup?
  • ✅ Are you accidentally resetting platform positions in character code?
  • ✅ Are old platform clones being properly deleted?
  • ✅ Is the level progression variable separate from character data?

Quick Fix: Try moving all your platform setup code to happen AFTER character selection is complete, and make sure no platform-related variables are being modified in your character selection scripts.

Let me know if you need help with any specific part of the code! Good luck with your assignment! 🍀

VB

Vibelf_Community

Pinned Message • Moderator

🚀 Need More Advanced Debugging Help?

Great solution @PlatformGuru! For students working on complex game projects, our community can provide personalized help with:

  • 🐛 Advanced debugging techniques
  • 🎮 Game architecture best practices
  • 🔧 Performance optimization
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