Tribes, Colours and Titles

A game has eight civilization slots. Slot 0 is always the Barbarians; slots 1–7 are colour slots, and each can hold one of two tribes. civ_tribe_of[slot] is an index into civt: the slot number selects the first tribe and the slot number plus 8 the alternate.

The colour index comes from civ_colours[8] in GAME.C; civ_shadows[8] holds a darker companion for each. Because a slot can hold only one tribe, the Romans and Russians never meet in the same world.

Choosing tribes

new_game() in NEWGAME.C offers the tribes of slots 1 to civ_total + 1, first tribes then alternates, so a game with fewer rivals offers fewer tribes. Leaving the menu without a choice picks a random slot and calls rename_tribe() in NAMES.C, which stores the typed plural and derives the adjective by dropping a final “s”.

For each rival, init_civ() draws rand_scaled(16) until the result belongs to that slot ((tribe & 7) == slot) and is not already in use. When a slot is reused later in the game, the tribe is toggled with civ_tribe_of[civ] ^= 8, so a destroyed tribe returns as its partner. civil_war() in CIVWAR.C usually does the same for the breakaway civilization; for a slot beyond the game’s original rivals it picks either tribe at random.

The tables civ_names, civ_adjectives and leader_names in GAME.C are working copies. Their initial contents (including leaders such as Xerxes and Saladin, who do not appear in civt) are replaced from civt as each slot is filled.

Titles

leader_titles[civ_gov[civ]] gives the title used in audiences and reports:

While an audience with Elizabeth I (civt[14]) is open, leader_audience() replaces entries 1 and 2 with “Empress” and “Queen”. On closing it restores them from rank_title in INTRO.C, whose five entries (“Chief”, “Lord”, “Prince”, “King”, “Emperor”) otherwise name the five difficulty levels in the Hall of Fame and save-game lists.