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#pomelo-bt - behavior tree for node.js pomelo-bt是pomelo项目中AI模块所依赖的行为树模块,提供了基本的行为树实现。
##安装
npm install pomelo-bt
##行为树节点基类 ###节点基类 Node 所有行为树节点都从该类派生,构造函数接受一个blackboard实例作为参数。 每个节点都提供一个执行的入口doAction方法。doAction执行完完毕后,向父节点返回执行结果: RES_SUCCESS, RES_FAIL, RES_WAIT分别代表当前执行成功,失败和仍在执行中。 父节点根据子节点的返回值再做后续流程决策。
###组合节点基类 Composite 所有组合节点都从该类派生,内部可以维护多个孩子节点。提供addChild接口,添加孩子节点。
###装饰节点基类 Decorator 所有装饰节点都从该类派生,提供setChild接口,添加唯一的孩子节点。
##组合节点 ###Sequence 实现行为树sequence语义。 ####构造函数Sequenec(opts)
###Parallel 实现行为树parallel语义。 ####构造函数Parallel(opts)
###Selector 实现行为树selector语义。 ####构造函数Selector(opts)
##装饰节点 ###Loop 循环节点。 ####构造函数Loop(opts)
##条件节点 ###Condition 条件成立返回RES_SUCCESS, 反之返回RES_FAIL。 ####构造函数Condition(opts)
##其他节点 ###If 实现if语义,如果条件成立,则执行关联的孩子节点。 ####构造函数If(opts)
##用法
var util = require('util');
var bt = require('pomelo-bt');
var Sequence = bt.Sequence;
var Node = bt.Node;
// define some action nodes
var HelloNode = function(blackboard) {
Node.call(this, blackboard);
};
util.inherits(HelloNode, Node);
HelloNode.prototype.doAction = function() {
console.log('Hello ');
return bt.RES_SUCCESS;
};
var WorldNode = function(blackboard) {
Node.call(this, blackboard);
};
util.inherits(WorldNode, Node);
WorldNode.prototype.doAction = function() {
console.log('World');
return bt.RES_SUCCESS;
};
var blackboard = {};
// composite your behavior tree
var seq = new Sequence({blackboard: blackboard});
var hello = new HelloNode(blackboard);
var world = new WorldNode(blackboard);
seq.addChild(hello);
seq.addChild(world);
// run the behavior tree
seq.doAction();
FAQs
pomelo-bt是pomelo项目中AI模块所依赖的行为树模块,提供了基本的行为树实现。
We found that pomelo-bt demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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