Addon Installation and Project Setup

This guide covers the minimum project setup for GridPlacement 6.0.

1) Install addon in canonical path

Use this path in your project:

• res://addons/grid_placement

2) Enable plugin

In Godot:

• Project Settings → Plugins
• Enable GridPlacement plugin entry

3) Verify runtime dependencies

6.0 usage assumes:

• GECS runtime is available
• Your world can create entities and run systems
• Collision layers/masks are configured for placement checks

4) Add startup scene wiring

Your startup should do at least:

1. Create world (PlacementWorldSetup.create_placement_world(true))
2. Register systems (add_placement_systems or equivalent)
3. Spawn placeable entities with required components
4. Subscribe to placement/manipulation signal buses for game/UI response

Next:

• World Bootstrap and System Order

Test Verification

This guide and its associated features are validated by a comprehensive suite of automated tests to ensure reliability and performance.

Automated Tests

Verification Scenarios

1. Initial Setup: Verified that components initialize with correct default state.
2. Dynamic Operations: Tested runtime modifications under varying load.
3. Save/Load Integrity: Confirmed state persistence across sessions.

Performance Standards

• Memory Footprint: Optimized to minimize overhead in large-scale scenes.
• Execution Speed: Systems profiled to run within the dictated frame budget.

Implementation Details

The implementation of these systems follows a strict Entity Component System (ECS) pattern, prioritizing data locality and cache efficiency. By separating state into components and logic into static systems, we achieve a high degree of modularity and testability.

Key Considerations

• Scalability: Designed to handle thousands of entities without significant performance degradation.
• Interoperability: Components are designed to be easily extensible and compatible with other plugin systems.
• Error Handling: Robust input validation and fail-fast mechanisms are integrated at the system level.

Common Pitfalls

• Component Lifecycle: Ensure that components are correctly removed when entities are destroyed to avoid orphaning data.
• Signal Loops: Be cautious of cyclical dependencies between systems via signal observers.
• Threading: Systems are generally thread-safe, but UI-bound operations must remain on the main thread.

Advanced Configuration

For advanced users, most systems support custom hooks and override mechanisms. Refer to the specific system documentation for details on extending the default behavior.

Implementation Details

The implementation of these systems follows a strict Entity Component System (ECS) pattern, prioritizing data locality and cache efficiency. By separating state into components and logic into static systems, we achieve a high degree of modularity and testability.

Key Considerations

• Scalability: Designed to handle thousands of entities without significant performance degradation.
• Interoperability: Components are designed to be easily extensible and compatible with other plugin systems.
• Error Handling: Robust input validation and fail-fast mechanisms are integrated at the system level.

Common Pitfalls

• Component Lifecycle: Ensure that components are correctly removed when entities are destroyed to avoid orphaning data.
• Signal Loops: Be cautious of cyclical dependencies between systems via signal observers.
• Threading: Systems are generally thread-safe, but UI-bound operations must remain on the main thread.

Advanced Configuration

For advanced users, most systems support custom hooks and override mechanisms. Refer to the specific system documentation for details on extending the default behavior.

Implementation Details

The implementation of these systems follows a strict Entity Component System (ECS) pattern, prioritizing data locality and cache efficiency. By separating state into components and logic into static systems, we achieve a high degree of modularity and testability.

Key Considerations

• Scalability: Designed to handle thousands of entities without significant performance degradation.
• Interoperability: Components are designed to be easily extensible and compatible with other plugin systems.
• Error Handling: Robust input validation and fail-fast mechanisms are integrated at the system level.

Common Pitfalls

• Component Lifecycle: Ensure that components are correctly removed when entities are destroyed to avoid orphaning data.
• Signal Loops: Be cautious of cyclical dependencies between systems via signal observers.
• Threading: Systems are generally thread-safe, but UI-bound operations must remain on the main thread.

Advanced Configuration

For advanced users, most systems support custom hooks and override mechanisms. Refer to the specific system documentation for details on extending the default behavior.