手册:Minecraft:tree feature/红树树干语法

"mangrove_trunk": {
 "trunk_width": <par1>,
 "trunk_height": {
   "base": <par2>,
   "height_rand_a": <par3>,
   "height_rand_b": <par4>
 },
 "trunk_block": <par5>,
 "branches": {
   "branch_length": <par6>,
   "branch_steps": <par7>,
   "branch_chance": <par8>
 },
 "trunk_decoration": {
   "decoration_chance": <par9>,
   "decoration_block": <par10>,
   "num_steps": <par11>,
   "step_direction": "<pat12>"
 }
}