{
    "walk_ground":[
        "sfx_walk_ground_0",
        "sfx_walk_ground_0",
        "sfx_walk_ground_0",
        "sfx_walk_ground_0",
        "sfx_walk_ground_0",
        "sfx_walk_metal_0",
        "sfx_walk_metal_1",
        "sfx_walk_metal_2", 
        "sfx_walk_water_0"
    ],
    "walk_wall":[
        "sfx_walk_ground_0",
        "sfx_walk_metal_0",
        "sfx_walk_metal_1",
        "sfx_walk_metal_2", 
        "sfx_walk_water_0"
    ],
    "walk_metal":[
        "sfx_walk_metal_0",
        "sfx_walk_metal_1",
        "sfx_walk_metal_2",
        "sfx_walk_metal_3",
        "sfx_walk_metal_4",
        "sfx_walk_metal_5"
    ],
    "walk_water":[
        "sfx_walk_water_0"
    ]
}