Play Mode Plus

Custom Unity Toolbar - Time scale control, play mode scene selection, play mode settings, and build presets.

Play Mode Plus extends Unity toolbar with additional tools using the official Unity 6.3 Toolbar API.

⚠️ Unity 6.3+ Required

Version 3.0.0+ requires Unity 6.3 or higher. This version uses Unity's official toolbar API instead of reflection.

For Unity 2021, 2022, use Play Mode Plus v1.0.0.

For Unity 6.0-6.2, use Play Mode Plus v2.0.0.

Features

• Time Scale Slider - Adjust game speed from 0x to 2x during play mode
• Scene Selector Dropdown - Choose which scene to launch when clicking Unity's play button
• Play Mode Settings - Configure domain/scene reload options
• Build Button - Quick access to build window
• Build Presets - Apply PlayerSettings presets from dropdown
• Fully Customizable - Hide, show, and reorder toolbar elements

Installation

1. Open Unity 6.3 or higher
2. Add package via Package Manager:
   • Git URL: https://github.com/TheDisillusion/Play-Mode-Plus.git
   • Or download and import manually

Usage

Time Scale Slider

• Adjust game speed during play mode (0.0x to 2.0x)
• Right-click slider to reset to 1.0x
• Useful for testing slow-motion or fast-forward scenarios

Scene Selection

• Click the scene dropdown to select which scene to launch in play mode
• Choose "Active Scene" to play the currently open scene
• Click Unity's native play button to enter play mode with selected scene
• Scenes in Assets/Scenes/ folder appear first
• Selected scene persists between Unity sessions
• Scene paths are displayed with clean, readable names
• Note: Unit tests are unaffected by scene selection

Play Mode Settings

Configure how Unity enters play mode:

• Default - Reload domain and scene (standard Unity behavior)
• Disable Reload Domain - Faster iteration, preserves static state
• Disable Reload Scene - Keep scene state between play sessions
• Disable All - Maximum speed, requires careful initialization

Build Presets

• Create PlayerSettings presets with P_ prefix in the name
• Select from dropdown to apply preset
• Click build button to open build window

Customization

Right-click the toolbar to:

• Hide/show individual elements
• Enter Edit Mode to reorder elements
• Save/load toolbar presets
• Or use Ctrl+Drag (Cmd+Drag on macOS) to reorder

Naming Conventions

Note: Only presets containing P_ in their name appear in Build Settings dropdown

Migration from v2.x

See MIGRATION_GUIDE.md for details on upgrading from the reflection-based version.

Technical Details

Built using Unity 6.3's official toolbar APIs:

• MainToolbarElementAttribute - Register toolbar elements
• MainToolbarButton - Custom buttons
• MainToolbarDropdown - Dropdown menus with GenericMenu
• MainToolbarSlider - Time scale control
• EditorSceneManager.playModeStartScene - Scene override on play
• MainToolbar.Refresh() - Update toolbar state

Troubleshooting

Elements not appearing?

• Right-click the toolbar (three dots menu in top-right)
• Navigate to Play Mode Plus section
• Click Show All to make all elements visible
• Alternatively, verify Unity 6.3+ is installed and restart Unity Editor

Wrong position?

• Right-click toolbar → Edit Mode
• Drag elements to desired location

License

MIT