Ok I just find out that I have to create a new World Type. I did some research and I did not found a tutorial that was working on Forge 1.5.1 . Do you know a good one? Thanks!
I am running Forge 1.5.1 and I would like that when you mine a certain ore and then you get the block in your inventory, you get damaged and if you keep it too long, you will die (just like hunger damage). Thanks!
I am running Forge 1.5.1 and I would like to generate, for exemple, desert biome at spawn location, plains biome 100 blocks away from spawn and forest biome 250 blocks away from spawn. Is it possible? Thanks!