Examples for Machine.js

alltogether.js

var landscape = new Landscape(); // one actor

// make instance of Machine and get the root nodes for each actor
var machine = new Machine();
landscape.state = machine.generateTree(landscapeJson, landscape);

// every second, something happens in the ecosystem
setTimeout("step()", 1000);
var step = function() {
    // trigger the next state transition
    landscape.state = landscape.state.tick();
}

import.js

<script type="text/javascript" src="base.js"></script>
<script type="text/javascript" src="machine.js"></script>

landscape.js

// the landscape object - rains or is sunny
function Landscape() {
    this.groundwater = 0;
    this.oxygen = 0;
}
Landscape.prototype = {
    hasWater: function() { return this.groundwater > 0; },

    giveWater: function() {
        this.groundwater -= 1;
        return 1;
    },

    oxygenate: function() { this.oxygen += 1; },
};

landscapebehaviour.js

var landscapeBehaviourJson = {
    identifier: "idle", strategy: "sequential",
    children: [
        { identifier: "shine" },
        { identifier: "rain" },
    ]
};

landscapestates.js

Landscape.states = {
    idle: function() { },

    rain: function() { this.groundwater += 1; },
    canRain: function() { return Math.random() > 0.5; },

    shine: function() {  }, // nothing to do - just a state
    canShine: function() { return Math.random() > 0.1; },
    isShining: function() { return this.state.identifier == "shine"; },
};

warpbehaviourtree.js

var soldierBehaviourJson = {
    identifier: "idle", strategy: "sequential",
    children: [
        {
            identifier: "fight", strategy: "prioritised",
            children: [
                { identifier: "shoot" }
            ]
        },
        {
            identifier: "returnToBase", strategy: "prioritised",
            children: [
                { identifier: "plotCourseToBase" },
                { identifier: "followCourseToBase" }
            ]
        }
    ]
};

warpusage.js

var returnToBase = function() {
  this.state = this.state.warp("returnToBase");
};