minetest.register_node('levels:trampoline_0', {
   description = 'Trampoline',
   tiles = {{name='levels_trampoline_0.png', align_style='world', scale=4}},
   inventory_image = '[inventorycube{levels_trampoline_0.png&[sheet:4x4:1,1{levels_trampoline_0.png&[sheet:4x4:1,1{levels_trampoline_0.png&[sheet:4x4:1,1',
   groups = {breakable=1, bouncy=99, fall_damage_add_percent=-50},
})

minetest.register_node('levels:ice_0', {
   description = 'Ice',
   tiles = {{name='levels_ice_0.png', align_style='world', scale=4}},
   inventory_image = '[inventorycube{levels_ice_0.png&[sheet:4x4:1,1{levels_ice_0.png&[sheet:4x4:1,1{levels_ice_0.png&[sheet:4x4:1,1',
   groups = {breakable=1, slippery=1},
})

minetest.register_node('levels:ice_1', {
   description = 'Ice (slightly slippery)',
   tiles = {{name='levels_ice_1.png', align_style='world', scale=4}},
   inventory_image = '[inventorycube{levels_ice_1.png&[sheet:4x4:1,1{levels_ice_1.png&[sheet:4x4:1,1{levels_ice_1.png&[sheet:4x4:1,1',
   groups = {breakable=1, slippery=2},
})

minetest.register_node('levels:ice_2', {
   description = 'Ice (semi slippery)',
   tiles = {{name='levels_ice_2.png', align_style='world', scale=4}},
   inventory_image = '[inventorycube{levels_ice_2.png&[sheet:4x4:1,1{levels_ice_2.png&[sheet:4x4:1,1{levels_ice_2.png&[sheet:4x4:1,1',
   groups = {breakable=1, slippery=3},
})

minetest.register_node('levels:ice_3', {
   description = 'Ice (fairly slippery)',
   tiles = {{name='levels_ice_3.png', align_style='world', scale=4}},
   inventory_image = '[inventorycube{levels_ice_3.png&[sheet:4x4:1,1{levels_ice_3.png&[sheet:4x4:1,1{levels_ice_3.png&[sheet:4x4:1,1',
   groups = {breakable=1, slippery=4},
})

minetest.register_node('levels:ice_4', {
   description = 'Ice (very slippery)',
   tiles = {{name='levels_ice_4.png', align_style='world', scale=4}},
   inventory_image = '[inventorycube{levels_ice_4.png&[sheet:4x4:1,1{levels_ice_4.png&[sheet:4x4:1,1{levels_ice_4.png&[sheet:4x4:1,1',
   groups = {breakable=1, slippery=5},
})
