Differences

This shows you the differences between two versions of the page.

--- behavior-trees [2020/07/17 15:11] – maxime
+++ behavior-trees [2021/07/29 11:56] (current) – maxime
@@ Line 45: / Line 45: @@
 ==== Functions ====
-A leaf node has three basic functions: ''Init'', ''Update'', and ''Finish''. The ''Update'' function takes the level (''[[api:level|LEVEL]]'') and the tree instance (''[[api:behavior_tree_instance|BEHAVIOR_TREE_INSTANCE]]'') as parameter, and returns a ''[[api:behavior_tree_node_result|BEHAVIOR_TREE_NODE_RESULT]]''.
+A leaf node has three basic functions: ''Init'', ''Update'', and ''Finish''. The implementation of ''Init'' and ''Finish'' are optional.
+=== Init ===
+''void **Init**(//instance//)''
+^ Name ^ Type ^
+| //''instance''// | ''BEHAVIOR_TREE_INSTANCE'' |
+=== Update ===
+''BEHAVIOR_TREE_NODE_RESULT **Update**(//level//, //instance//)''
+^ Name ^ Type ^
+| //''level''// | ''LEVEL'' |
+| //''instance''// | ''BEHAVIOR_TREE_INSTANCE'' |
+=== Finish ===
+''void **Finish**(//instance//)''
+^ Name ^ Type ^
+| //''instance''// | ''BEHAVIOR_TREE_INSTANCE'' |
 When a node is executed, the ''Init'' function is called first. Then, the ''Update'' function is called until it doesn't return ''[[api:behavior_tree_node_result|BEHAVIOR_TREE_NODE_RESULT.PROCESSING]]''. Finally, the ''Finish'' function is called.
 You can access all of the node's variables in those functions with ''self''.