<mujoco>
    <option gravity="0 0 0" timestep="0.01"/>
<default>
    <geom rgba="0 0 0 1"/>
</default>
    <worldbody>
 	<light diffuse=".2 .2 .2" pos="0 0 20" dir="0 0 -1" mode="track"/>
	<body>
	  <geom name='floor' pos='0 0 -0.4' size='10 10 .1' mass="10000" type='box' condim='3' rgba=".9 .9 .9 1"/>
		<camera name="center" mode="fixed" pos="0 0 30" />
	</body>
	<body>
	  <geom name='wall1' pos='-10.1 0 -0.2' size='.1 10.1 .5' mass="10000" type='box' condim='3'/>
	</body>
	<body>
	  <geom name='wall2' pos='10.1 0 -0.2' size='.1 10.1 .5' mass="10000" type='box' condim='3'/>
	</body>
	<body>
	  <geom name='wall3' pos='0 -10.1 -0.2' size='10 .1 .5' mass="10000" type='box' condim='3'/>
	</body>
	<body>
	  <geom name='wall4' pos='0 10.1 -0.2' size='10 .1 .5' mass="10000" type='box' condim='3'/>
	</body>
 	<body name="prey" pos="0 0 0">
            <joint axis="1 0 0" damping="0" name="prey0" pos="0 0 0" type="slide"/>
            <joint axis="0 1 0" damping="0" name="prey1" pos="0 0 0" type="slide"/>
            <geom type="sphere" size="0.2" mass="8" rgba="0 1 0 1"/>
            <site name="prey" pos="0 0 0" type="sphere" size="0.01"/>
        </body>
	<body name="predator" pos="0 0 0">
            <joint axis="1 0 0" damping="0" name="predator0" pos="0 0 0" type="slide"/>
            <joint axis="0 1 0" damping="0" name="predator1" pos="0 0 0" type="slide"/>
            <geom type="sphere" size="0.2" mass="10" rgba="1 0 0 1"/>
    	    <site name="predator" pos="0 0 0" type="sphere" size="0.01"/>
	</body>
        <body name="dragger" pos="0 0 0">
            <joint axis="1 0 0" damping="0" name="dragger0" pos="0 0 0" type="slide"/>
            <joint axis="0 1 0" damping="0" name="dragger1" pos="0 0 0" type="slide"/>
            <geom type="sphere" size="0.2" mass="8" rgba="1 0 0 1"/>
    	    <site name="dragger" pos="0 0 0" type="sphere" size="0.01"/>
	</body>
    </worldbody>

    <actuator>
        <motor gear="10" joint="prey0"/>
        <motor gear="10" joint="prey1"/>
       	<motor gear="10" joint="predator0"/>
        <motor gear="10" joint="predator1"/>
       	<motor gear="10" joint="dragger0"/>
        <motor gear="10" joint="dragger1"/>
    </actuator>
</mujoco>
