东风风行SX载导航如何设置？，

var pos = cc.v2(world_offset.x + x, world_offset.y + y);

path_pos.push(pos);

}

return path_pos;

}

});

// nav_agent.js 寻路的实际应用

var nav_map = require("nav_map");

var State = {

Idle: 0,

Walk: 1,

};

cc.Class({

extends: cc.Component,

properties: {

// foo: {

// default: null, // The default value will be used only when the component attaching

// to a node for the first time

// url: cc.Texture2D, // optional, default is typeof default

// serializable: true, // optional, default is true

// visible: true, // optional, default is true

// displayName: 'Foo', // optional

// readonly: false, // optional, default is false

// },

// ...

speed: 100,

game_map: {

type: nav_map,

default: null,

}

},

// use this for initialization

onLoad: function() {

this.state = State.Idle;

this.walk_total = 0.0;

this.walk_time = 0;

},

nav_to_map: function(dst_wpos) {

var src_wpos = this.node.convertToWorldSpaceAR(cc.v2(0, 0));

this.road_set = this.game_map.astar_search(src_wpos, dst_wpos);

console.log(this.road_set);

if (!this.road_set || this.road_set.length <= 1) {

this.state = State.Idle;

return;

}

this.walk_next = 1;

this._walk_to_next();

},

stop_nav: function() {

this.state = State.Idle;

},

_walk_to_next: function() {

if (!this.road_set || this.walk_next >= this.road_set.length) {

this.state = State.Idle;

return;

}

var src = this.node.getPosition();

var dst = this.node.parent.convertToNodeSpaceAR(this.road_set);

var dir = dst.sub(src); // 朝向

var len = dir.mag();

this.vx = (dir.x / len) * this.speed;

this.vy = (dir.y / len) * this.speed;

this.walk_total = len / this.speed;

this.walk_time = 0;

this.state = State.Walk;

},

_walk_update: function(dt) {

if (this.state != State.Walk) {

return;

}

this.walk_time += dt;

if (this.walk_time > this.walk_total) {

dt -= (this.walk_time - this.walk_total);

}

var sx = this.vx * dt;

var sy = this.vy * dt;

this.node.x += sx;

this.node.y += sy;

if (this.walk_time > this.walk_total) {

this.walk_next++;

this._walk_to_next();

}

},

update: function(dt) {

if (this.state == State.Walk) {

this._walk_update(dt);

}

},

});

// enemy_AI.js 简单的怪物AI

var nav_agent = require("nav_agent");

cc.Class({

extends: cc.Component,

properties: {

// foo: {

// default: null, // The default value will be used only when the component attaching

// to a node for the first time

// url: cc.Texture2D, // optional, default is typeof default

// serializable: true, // optional, default is true

// visible: true, // optional, default is true

// displayName: 'Foo', // optional

// readonly: false, // optional, default is false

// },

// ...

think_f_time: 0.25,

search_R: 150, // 发现玩家追击上去

attack_R: 30, // 攻击玩家。

player_agent: {

type: nav_agent,

default: null,

}

},

// use this for initialization

onLoad: function() {

this.think_time = 0.0;

this.agent = this.getComponent("nav_agent");

},

_do_think_AI: function() {

var target_pos = this.player_agent.node.getPosition();

var now_pos = this.node.getPosition();

var dir = target_pos.sub(now_pos);

var len = dir.mag();

if (len > this.search_R) { // 停止下来

this.agent.stop_nav();

return;

}

if (len < this.attack_R) {

this.agent.stop_nav();

return;

}

target_pos = this.player_agent.node.convertToWorldSpaceAR(cc.v2(0, 0));

this.agent.nav_to_map(target_pos);

},

// called every frame, uncomment this function to activate update callback

update: function(dt) {

this.think_time += dt;

if (this.think_time >= this.think_f_time) { // 决策来做思考

this.think_time = 0.0;

this._do_think_AI();

}

},

});