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<mujoco model="ant">
<compiler inertiafromgeom="true" angle="degree" coordinate="local" />
<option timestep="0.02" integrator="RK4" />
<custom>
<numeric name="init_qpos" data="0.0 0.0 0.55 1.0 0.0 0.0 0.0 0.0 1.0 0.0 -1.0 0.0 -1.0 0.0 1.0" />
</custom>
<default>
<joint limited="true" armature="1" damping="1" />
<geom condim="3" conaffinity="0" margin="0.01" friction="1 0.5 0.5" solref=".02 1" solimp=".8 .8 .01" rgba="0.8 0.6 0.4 1" density="5.0" />
</default>
<asset>
<texture type="skybox" builtin="gradient" width="100" height="100" rgb1="1 1 1" rgb2="0 0 0" />
<texture name="texgeom" type="cube" builtin="flat" mark="cross" width="127" height="1278" rgb1="0.8 0.6 0.4" rgb2="0.8 0.6 0.4" markrgb="1 1 1" random="0.01" />
<texture name="texplane" type="2d" builtin="checker" rgb1="0 0 0" rgb2="0.8 0.8 0.8" width="100" height="100" />
<material name='MatPlane' texture="texplane" shininess="1" texrepeat="60 60" specular="1" reflectance="0.5" />
<material name='geom' texture="texgeom" texuniform="true" />
</asset>
<worldbody>
<light directional="true" cutoff="100" exponent="1" diffuse="1 1 1" specular=".1 .1 .1" pos="0 0 1.3" dir="-0 0 -1.3" />
<geom name='floor' pos='0 0 0' size='40 40 40' type='plane' conaffinity='1' rgba='0.8 0.9 0.8 1' condim='3' />
<body name="torso" pos="0 0 0.75">
<geom name="torso_geom" type="sphere" size="0.25" pos="0 0 0" />
<joint name="root" type="free" limited="false" pos="0 0 0" axis="0 0 1" margin="0.01" armature="0" damping="0" />
<body name="front_left_leg" pos="0 0 0">
<geom name="aux_1_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 0.2 0.2 0.0" />
<body name="aux_1" pos="0.2 0.2 0">
<joint name="hip_1" type="hinge" pos="0.0 0.0 0.0" axis="0 0 1" range="-30 30" />
<geom name="left_leg_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 0.2 0.2 0.0" />
<body pos="0.2 0.2 0">
<joint name="ankle_1" type="hinge" pos="0.0 0.0 0.0" axis="-1 1 0" range="30 70" />
<geom name="left_ankle_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 0.4 0.4 0.0" />
</body>
</body>
</body>
<body name="front_right_leg" pos="0 0 0">
<geom name="aux_2_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 -0.2 0.2 0.0" />
<body name="aux_2" pos="-0.2 0.2 0">
<joint name="hip_2" type="hinge" pos="0.0 0.0 0.0" axis="0 0 1" range="-30 30" />
<geom name="right_leg_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 -0.2 0.2 0.0" />
<body pos="-0.2 0.2 0">
<joint name="ankle_2" type="hinge" pos="0.0 0.0 0.0" axis="1 1 0" range="-70 -30" />
<geom name="right_ankle_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 -0.4 0.4 0.0" />
</body>
</body>
</body>
<body name="back_leg" pos="0 0 0">
<geom name="aux_3_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 -0.2 -0.2 0.0" />
<body name="aux_3" pos="-0.2 -0.2 0">
<joint name="hip_3" type="hinge" pos="0.0 0.0 0.0" axis="0 0 1" range="-30 30" />
<geom name="back_leg_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 -0.2 -0.2 0.0" />
<body pos="-0.2 -0.2 0">
<joint name="ankle_3" type="hinge" pos="0.0 0.0 0.0" axis="-1 1 0" range="-70 -30" />
<geom name="third_ankle_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 -0.4 -0.4 0.0" />
</body>
</body>
</body>
<body name="right_back_leg" pos="0 0 0">
<geom name="aux_4_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 0.2 -0.2 0.0" />
<body name="aux_4" pos="0.2 -0.2 0">
<joint name="hip_4" type="hinge" pos="0.0 0.0 0.0" axis="0 0 1" range="-30 30" />
<geom name="rightback_leg_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 0.2 -0.2 0.0" />
<body pos="0.2 -0.2 0">
<joint name="ankle_4" type="hinge" pos="0.0 0.0 0.0" axis="1 1 0" range="30 70" />
<geom name="fourth_ankle_geom" type="capsule" size="0.08" fromto="0.0 0.0 0.0 0.4 -0.4 0.0" />
</body>
</body>
</body>
</body>
</worldbody>
<actuator>
<motor joint="hip_4" ctrlrange="-30.0 30.0" ctrllimited="true" />
<motor joint="ankle_4" ctrlrange="-30.0 30.0" ctrllimited="true" />
<motor joint="hip_1" ctrlrange="-30.0 30.0" ctrllimited="true" />
<motor joint="ankle_1" ctrlrange="-30.0 30.0" ctrllimited="true" />
<motor joint="hip_2" ctrlrange="-30.0 30.0" ctrllimited="true" />
<motor joint="ankle_2" ctrlrange="-30.0 30.0" ctrllimited="true" />
<motor joint="hip_3" ctrlrange="-30.0 30.0" ctrllimited="true" />
<motor joint="ankle_3" ctrlrange="-30.0 30.0" ctrllimited="true" />
</actuator>
</mujoco>
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