Unity Platform Spawner

A simple procedural platform generator for 2D/3D endless climbing games made with Unity. This script dynamically spawns platforms based on the player's height, allowing smooth level generation with configurable spawn limits, spacing, and randomness.

Features

• Dynamic platform spawning
• Adjustable vertical and horizontal spacing
• Maximum platform limit
• Randomized platform positions
• Lightweight and beginner-friendly
• Easy integration into existing Unity projects

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Requirements

• Unity 2021 or newer
• A player object with the Player tag
• A platform prefab

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Setup Instructions

1. Create the Platform Prefab

1. Create a platform GameObject in your scene
2. Add:
   • Sprite Renderer / Mesh Renderer
   • Collider2D or Collider
3. Drag the object into the Project folder to create a prefab

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2. Create the Player

Make sure your player GameObject:

• Has the tag:

  Player
  
  

• Contains movement and physics components

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3. Add the Script

1. Create an empty GameObject

2. Rename it to:

   PlatformSpawner
   

3. Attach the PlatformSpawner.cs script

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4. Assign the Platform Prefab

In the Inspector:

• Drag your platform prefab into:

  Platform Prefab
  

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Inspector Variables

Variable	Description
platformPrefab	The platform object to spawn
maxPlatforms	Total number of platforms allowed
initialPlatforms	Platforms spawned at the start
verticalGap	Distance between platforms vertically
horizontalRange	Random horizontal spawn range
initialPlatformYPosition	Starting Y position of the first platform

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How It Works

• The spawner creates an initial set of platforms
• As the player moves upward, new platforms generate ahead
• Platforms stop spawning once the maximum limit is reached
• The script uses randomized X positions for variety

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Example Use Cases

• Doodle Jump style games
• Endless vertical platformers
• Tower climbing games
• Infinite runner prototypes

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Future Improvements

Possible upgrades you can add:

• Multiple platform types
• Moving platforms
• Platform pooling system
• Difficulty scaling
• Coin and enemy spawning
• Finish line generation

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Script Preview

void SpawnPlatform()
{
    Vector3 spawnPosition = new Vector3();
    spawnPosition.y = initialPlatformYPosition;
    spawnPosition.x = Random.Range(-horizontalRange, horizontalRange);

    Instantiate(platformPrefab, spawnPosition, Quaternion.identity);

    initialPlatformYPosition += verticalGap;
    platformsSpawned++;
}

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License

This project is open-source and free to use for learning and personal projects.

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Author

Created by StixKnowledge