Hi Everyone, It’s been a long time since I updated the tool, and recently I thought I should deprecate the asset in the store until I had time to update it. I finally got it done, got some new states, features, and most importantly a big improvement in pathfinding for 2D platform games which will now have a decent jump calculation, animation support, and tons of settings. Just for comparison, the old script had 300 lines of code and the new 1000 lines. You can see it in action by visiting my portfolio websitein the card “enemies A.I.”:

For some reason, Unity can take almost 1 month to review my update and submit it to the asset store, but I would like the users to have this update as soon as possible, so if anyone is interested in having this one update before Unity revision, please contact me privately and I will send you a unity package file.

Also, this new update will have a new method for the IDamageable interface, so if you use this interface on your player controller you might get a C# error stating that you need to implement this new method, any questions please contact me.

All notable changes to this project will be documented on Devlog posts and the ChangeLog file. This project adheres to Semantic Versioning. This changelog refers to the Pro version of the tool.

[1.3.0] - 2021-12-04

Added

• Special node called “Cooldown Alternate Node”, acts like a normal state but only has a logic to branch transition between two states based on cooldown.
• Special node called “Check Targets Detected”, acts like a normal state but only has a logic to branch transition between two states based on target detection.
• Special node called “Check Health Amount”, acts like a normal state but only has a logic to branch transition between two states based on the entity’s current health.
• New optional “Aggro mechanic” for all states.
• New options of animations for “Patrolling” state.
• New options of missile movement for “MissileProjectile” script.
• New options for combat states for knockback, now each state can have its own knockback values.
• New option for tag selection on “E_Attacks” state.
• New script called “Grenade” that can be used by the new state “Throw grenade”.
• New State called “Throw grenade” that uses the new script Grenade, suitable for platformer 2D entities.
• New State called “Hit scan” that shoots to a target using hit scene technique.
• New State called “Avoid Target” that can be used by flying or Top-down 2D entities, it uses a steering behavior and calculations to avoid targets around the scene.
• New State called “Keep Distance”, similar to the “Avoid target” but it is better suitable for Platformer 2D entities, it uses a simple but smart technique to keep an amount of distance from the target.
• New State called “Wandering state” that can be used by flying or Top-down 2D entities to auto set target destination around the scene with tons of settings to be tweaked.
• New State called “Block damage state” that allows entities to block damage based on direction.
• New State called “Heal state” that allows entities to heal themselves using animation and spawn particle system.
• New pathfinding solution for Platformer 2D characters that use auto jump destination calculation, support for timed animation, and ledge climb. It’s available in states that use pathfinding algorithms.
• New script to optimize NavMesh (or Gridgraph mesh for Astar) that can make the pathfinding for platformer 2D characters more suitable.
• New slope movement for Platformer 2D characters.

Changed

• Fixed issues with “E_DodgeState” script.
• Fixed issue with all the event-based nodes scripts, the ones that start with “On..”.
• Fixed bug with “Node.cs” from the xNode dependency.
• Replaced “Damage hop” with “knockback” logics for combat states.
• Replaced “Pathfollow” class with a robust and more efficient one called “Pathfollow_base”.

[1.2.1] - 2021-06-11

Added

• New option for the E_DodgeState to flip the character if he detects a ledge behind it, to prevent it from falling when dodging too close to a platform ledge.
• New option for the E_DashAttack to stop the character if he detects a ledge in front of it, to prevent it from falling when dashing too close to a platform ledge.
• New option for the E_Attacks to flip the character to target directions or not.
• New option for the Projectiles script to use Tags alongside the layers.

Changed

• Fixed a bug where the A.I. wasn’t working on Editor if the experimental option ‘Reload Domain’ is disabled in Project settings.
• Fixed a bug where the A.I. wasn’t working on Build.
• Fixed projectile script bug that was hitting the target some frames ahead.
• Changed how the E_DashAttack damage targets throughout the state.

[1.2.0] - 2021-06-01

Added

• Special node called “PlayAnimation”, acts just like a normal state but only plays animations.
• Special node called “OnPlayerInput” that is triggered by an internal event when the player press the specified input, work with both Old and New Input managers.
• Special node called “OnObjectsClose” that is triggered by an internal event when the entity is inside a specified collider’s trigger or inside the OverlapCircle.
• Special node called “OnEntityHealth” that is triggered by an event when the entity’s health is bellow or equal to a specified percentage or value.
• Special node called “OnDamageDirection” that is triggered by an event when the entity receives damage from a specified direction.
• An entity state node called “E_ChangeObjectsStats”, that can be used to change sprites, materials, layers, tags, and some others stats of objects in the scene with specified tags.
• A component called “EntityInteractable” that is required for triggering the OnObjectsClose nodes, also uses Unity events to trigger logic in the inspector.
• A component called “EntityInput” that is required for triggering the OnPlayerInput nodes, also uses Unity events to trigger logic in the inspector.
• New API calls for the EntityGraph, which retrieves the new event-based nodes.
• Internal methods to the EntityAI that is used to handle the new special nodes.
• New API call for the Entity for checking the facing direction.
• The demo scenes now supports both New and Old Input manager.

Changed

• Add a new layer set up for the demo scenes: “Player Projectiles”. To split both projectiles so they can collider with both ground and enemies.
• Refactor of Projectile script, now it uses OnTrigger events to damage targets and an internal OverlapCircle to detect the next frame position, preventing the projectile to pass through colliders.
• Optimized the EntityGraph APIs to retrieve nodes from the graph, by adding a dictionary call instead of Linq queries.
• Fixed issue with the entities facing directions when they return from the pool.
• Fixed issue with rotation transform of entities in Top-down mode.
• Fixed issue with FollowTarget, and FollowPartner states where they could lose the target and return a generic error.
• Fixed the name of the EntityGraph windows, where they were not displaying the correct name of the file.
• Fixed animations of demo scene enemies.
• Changed the min value of the rotation speed on EntityData.
• Changed the path to the Editors windows of EntitySystemEditor and Help file.
• Changed folder name of the Editor windows.
• Removed unused Odin serialized directives.

[1.1.0] - 2021-05-21

Added

• A special node called “MultiTransitionalNode” allows states to transition to multiple states in a specified order.
• New Type of projectiles called MissileProjectile, that follows the target and can be damageable if layers are properly set.
• New sprites in demo scenes for projectiles.
• Better debugs warning and error logs in NavMesh-based states to better inform problems with missing NavMesh, and targets outside NavMesh.
• New bool type option on E_ShootProjectile.cs called “instantFirstShoot”, where if “true” the state will shoot the projectile on state enter instead of waiting for “delayBetweenShoots”.
• New example of how to use the MultipleTransitionalNode on the “Shooter” entity in the Platformer demo scene.

Changed

• Some Projectiles.cs Private variables encapsulation to Protected for using they on Parent classes.
• Optimization on E_DodgeState.cs, like caching, internal class, and cleaning code.
• Clamped value of the float variable “delayToExitState” to 0f minimum in E_SpawnObject.cs.
• Clamped value of the float variable “delayBetweenShoots” to 0f minimum in E_ShootProjectile.cs.
• Clamped value of the float variable “delayToExitState” to 0f minimum in E_ShootProjectile.cs.
• Clamped value of the int variable “maxShootsInState” to 1 minimum in E_ShootProjectile.cs.
• Fix missing initialization of the targets’ layer mask on Entity.cs OnEnable method.
• Fix bug where the state E_ShootProjectile.cs could be stuck if the animation played too fast.
• The delay between shoots now will only start when the shooting animation finishes.

[1.0.0] - 2021-05-17

• First Release