Stack-Based Finite State Machine (Push Down Automata)

State Machine fundamentals are taken to the next level with Stack-Based Push Down Automata (PDA), where we explore the power of stack-driven control in game systems. In this video, you’ll learn how a PDA can manage complex behaviors by allowing states to push, pop, and peek through a stack of layered contexts, adding flexibility to any character or game system with historical depth. Whether responding to temporary effects, handling nested actions, hunting down the player, or managing complex crafting or inventory tasks, a PDA framework enriches state machines with memory, enabling more dynamic, responsive gameplay. Want to support me? 😀 Buy me a coffee! https://ko-fi.com/adammyhre 🔔 Subscribe for more Unity Tutorials https://youtube.com/@git-amend Discord: https://discord.gg/FDRZGQBBUC #unity3d #gamedev #indiedev ▬ Contents of this video ▬▬▬▬▬▬▬▬▬▬ *Source code:* https://gist.github.com/adammyhre/9cc8154d2c79c3b9154dc1c70d4d56cd More Useful Code: https://github.com/adammyhre?tab=repositories Unity Utility Library: https://github.com/adammyhre/Unity-Utils Lock Inspector Hotkey: https://gist.github.com/adammyhre/4754f731a93bf1cab0d1385ccfa23642 Assets Shown In This Video (Affiliate Links) Robot Kyle: https://assetstore.unity.com/packages/3d/characters/robots/robot-kyle-urp-4696?aid=1101lw3sv Time Scale Toolbar FREE: https://assetstore.unity.com/packages/tools/utilities/timescale-toolbar-291564?aid=1101lw3sv Ultimate Workshops and Crafting: https://assetstore.unity.com/packages/3d/environments/fantasy/afs-ultimate-workshops-and-crafting-246182?aid=1101lw3sv 4K Full Fantasy GUI: https://assetstore.unity.com/packages/2d/gui/4k-full-fantasy-gui-over-400-png-samples-116891?aid=1101lw3sv RPG Vampire Icons: https://assetstore.unity.com/packages/2d/gui/icons/rpg-vampire-icons-295380?aid=1101lw3sv 6000 Fantasy Icons: https://assetstore.unity.com/packages/2d/gui/icons/6000-fantasy-icons-278148?aid=1101lw3sv Stylized VFX Trees: https://assetstore.unity.com/packages/vfx/particles/environment/stylized-vfx-trees-gpu-based-effect-238647?aid=1101lw3sv Hot Reload: https://assetstore.unity.com/packages/tools/utilities/hot-reload-edit-code-without-compiling-254358?aid=1101lw3sv Hierarchy Icons: https://assetstore.unity.com/packages/tools/utilities/better-hierarchy-272963?aid=1101lw3sv Better Transform: https://assetstore.unity.com/packages/tools/utilities/better-transform-size-notes-global-local-workspace-child-parent--276554?aid=1101lw3sv Better Mesh Filter: https://assetstore.unity.com/packages/tools/utilities/better-mesh-filter-266489?aid=1101lw3sv Editor Console Pro: https://assetstore.unity.com/packages/tools/utilities/editor-console-pro-11889?aid=1101lw3sv Any Object Finder: https://assetstore.unity.com/packages/tools/utilities/any-object-finder-286455?aid=1101lw3sv *Follow me!* https://linktr.ee/gitamend