How are Block-Ids determined in 1.10+?

[WowMuchName]

I'm trying to patch a shader to apply "waves" to other liquids than vanilla water. By digging around in the code I found that the shader is supplied with the numeric block-id and decides according to that whether the block is water or not. So I guess defining other Ids as well will apply the water-shader to those types of blocks too.

Im not really deep into modding for minecraft, but heard that after 1.7+ the way Ids are handled changed.

1. Can I get the Id of a modded block outside the game? Is it a hashCode over the name or something?
2. If I find out the Id of a modded block and put its value in the shader, will the same block have the same id in another mod-pack?

 

[NerpyDerpston]

I'm trying to patch a shader to apply "waves" to other liquids than vanilla water. By digging around in the code I found that the shader is supplied with the numeric block-id and decides according to that whether the block is water or not. So I guess defining other Ids as well will apply the water-shader to those types of blocks too.

Im not really deep into modding for minecraft, but heard that after 1.7+ the way Ids are handled changed.

1. Can I get the Id of a modded block outside the game? Is it a hashCode over the name or something?
2. If I find out the Id of a modded block and put its value in the shader, will the same block have the same id in another mod-pack?

for question one part one, im not sure. for part two i THINK it's mod:item, but it may not be for your purposes
for question two, IF the thing i said above is true, then it would be the same in another modpack.

 

[ratchet freak]

The mapping of the string id to the numeric id should be in the meta data of the world save,

most likely not, I believe that the mapping is filled based on the order the mods are loaded in the first time.