<?xml version="1.0"?>
<!--
A geysir which appears at regular intervals and becomes stronger and weaker.
An example of changing emitters.
-->
<effect>
	<particle
		position-x = "0"
		position-y = "0"
		position-z = "0"
		>
		<emitter>
			<property name="output" value="2" 
				change-func="sine"
				change-amplitude="3"
				change-period="800"
				/>
			<property name="power" min="1.5" max="2.5"
				change-func="sine"
				change-amplitude="3"
				change-period="800"
				/>
			<property name="horizontal-angle" min="0" max="360"/>
			<property name="vertical-angle" min="85" max="90" />
			<property name="image" value="graphics/particles/orb-medium.png"/>
			<property name="gravity" value="0.1" />
		</emitter>
	</particle>
</effect>