skill-tree-plugin

A basic skill tree plugin for Godot 4

1. INSTALLATION

   • Create an "addons" folder in your Godot project
   • Add the "skill-tree" folder & its contents in this repository's addons folder into your own
   • Done!

2. CREATING SKILLS

   • Add the "SkillNode" node to your UI scene; this node extends the Button node
   • Give your SkillNode a unique name with the "Skill Name" property
   • Change the other properties to your liking:
     • Cost: how much experience your skill costs & sells for
     • Sellable: can the player sell this skill to regain experience?
     • Default: is this skill immediately purchased when starting the game?
     • Active: is this skill immediately available for purchase when starting the game?
     • Next: an array of all SkillNodes that follow this SkillNode on the tree

3. CREATING A CONNECTED TREE

   • Add your desired SkillNodes
   • In each SkillNode, open the "Next" array property
   • Assign the SkillNodes that immediately follow your SkillNode to the array
   • SkillNodes in the array will be marked as "active" (purchasable) when your skill is purchased

4. BEGINNING YOUR TREE

   • The first SkillNode on your skill tree will need to be "active" or "default" to make your tree accessible
   • IMPORTANT: Default SkillNodes will also need to be manually initialized with the SkillManager when the game starts (see below)
   • Default SkillNodes automatically mark SkillNodes in their "Next" arrays as active

5. SKILL MANAGER

   • SkillManager lets you reference your skill tree and change the player's experience from anywhere in the game
   • Invoke SkillManager and then use your desired property/function
     • experience: the player's current experience level (initialized as 0)
     • initSkills(Array[String]): initializes default skills given the names of the skills (present in the Skill Name properties of the SkillNodes)
     • isSkillPurchased(String): returns true or false depending on if a skill has been purchased, given the name of the skill (present in the Skill Name property of the SkillNode)

ADDITIONAL NOTES

• This plugin does not have a built-in save feature, you will need to save and load data related to your skill tree manually
• You can customize the appearance and functionality of the SkillNode by editing the base button properties and attaching your own script