Cave Goblin Camp

Cave goblin camps are colonies found in hidden caverns of the Underground Biome and Underground World (single or multiplayer) where cave goblins and cave goblin warriors live.

Structures
Cave goblin camps may have different layouts, but some structures are present in all camps, like:
 * the main hut, where new goblins come from;
 * mushroom trees and berry bushes;
 * columns of ladders leading to a few directions;
 * all this illuminated by some random placed common torches.

And there is a variety of distinct structures that can appear or not around the main hut, like:
 * small and large hatches;
 * caterpillar farms; and
 * orc tombs.

Map generation
The basic structure of these camps (background and foreground blocks) are generated when the map is created. When the fog of war is removed and the area is revealed — either by dwarf's approach or by the use of the magic light — the other camp's elements are generated: constructions, goblins, captive animals, etc.