Function createMockOp

tests/gameobjects/particles/Particle.test.js:19–28

(returnValue)

}

function createMockOp (returnValue)
{
    var val = (returnValue !== undefined) ? returnValue : 0;
    return {
        active: false,
        steps: 0,
        onEmit: function (particle, key) { return val; },
        onUpdate: function (particle, key, t, current) { return current; }
    };
}

// An op that always returns its fixed value from both onEmit and onUpdate
function createFixedOp (returnValue)