casting-stack-conditions

Implement MTG stack resolution and mana payment using shared primitives like PendingCast and StackEntry to unify casting requests, target selection, and cost handling into a cohesive flow. This structured approach ensures consistent behavior across the pipeline.

A WaitingFor state machine manages interactive resolutions and modal choices during MTG casting by pausing the pipeline to await player input. This enables robust modal ability handling and ensures correct condition-driven rules across the engine.

Add new casting steps and condition checks by extending the structured casting pipeline with minimal risk. The system supports extensibility for new costs, conditional logic, and interactivity refinements within the stack and priority resolution paths.

Yes, you can modify stack behavior and priority paths for custom rules. The system applies to engine developers implementing or adjusting casting steps, condition evaluation, and resolution paths across the game engine with minimal risk.

Yes, this approach supports the full spell cast lifecycle from initial casting requests and modal handling to mana payment, stack resolution, and continuation. It uses PendingCast and StackEntry constructs to manage the complete pipeline.