Hardcore mod

Hardcore mode backport from 1.0 to b1.7.3

Complatible with both singleplayer and multiplayer.

Texture pack support

Custom icons are only used for hardcore (non hardcore uses vanilla texture) and should be located at /assets/hardcore/textures/gui/icons.png so you should add 2 textures at those two locations:

/gui/icons.png - for non hardcore aka vanilla texture

/assets/hardcore/textures/gui/icons.png - hardcore only

Their layout is exactly same.

The texture used in mod