Files
libretro/emulators/julius.yml
T
Abdessamad Derraz a8bfadd4c1 feat: list recalbox cores per board
Recalbox builds seven board images with different emulators. The new
target scraper reads each board's defconfig against the package every
system.ini core names. The names that reached no profile are mapped to
the projects Recalbox builds or profiled from their source, and the
mupen64plus video plugins are set aside.
2026-10-17 15:51:39 +02:00

109 lines
3.9 KiB
YAML

emulator: Julius
type: standalone
core_classification: game_engine
source: "https://github.com/bvschaik/julius"
upstream: "https://github.com/bvschaik/julius"
profiled_date: "2026-10-17"
source_commit: "33c777019b2640b847b73815c3b4344cf7bd9576"
core_version: "1.7.0"
display_name: "Caesar III (Julius)"
cores:
- "julius"
systems:
- "caesar3"
notes: |
Open-source reimplementation of Impressions Games' Caesar III engine.
It reads every graphic, text, sound and scenario from an installed copy
of the game; nothing is bundled.
The data directory is the command-line argument. pre_init() makes it
the base path and runs game_pre_init(); a missing directory shows
"Julius requires the original files from Caesar 3" and exits
(ref: src/platform/julius.c:488-501, 580-586). File lookups are
case-corrected inside that directory.
Startup loads, in order, the text and message files c3.eng and
c3_mm.eng (c3.rus and c3_mm.rus as the alternative pair)
(ref: src/game/game.c:48-63, src/core/lang.c:141-165), the central
climate graphics c3.sg2 and c3.555, the barbarian enemy graphics
goths.sg2 and goths.555, and c3_model.txt (ref: src/game/game.c:79-104).
Any of them missing aborts init. The_empire.555 is loaded with the
climate graphics; a wrong size is logged and the game continues
(ref: src/core/image.c:283-293, 323). The other climates, enemies,
sounds, videos and scenario maps are opened from the same directory on
demand.
Recalbox lists Caesar III under roms/ports/Caesar3 with c3.exe as the
entry and patches config and save paths into /recalbox/share.
files:
- name: "caesar3/"
type: directory
path: "caesar3/"
system: "caesar3"
category: game_data
required: true
description: "Caesar III install directory"
source_ref: "src/platform/julius.c:488-501"
note: "Given on the command line; every game file is opened by name inside it."
- name: "c3.eng"
path: "caesar3/c3.eng"
system: "caesar3"
category: game_data
required: true
description: "Caesar III interface text"
source_ref: "src/core/lang.c:23, 74-80, 141-165"
note: "Rejected when outside MIN_TEXT_SIZE..MAX_TEXT_SIZE. c3.rus replaces it on a Russian install."
- name: "c3_mm.eng"
path: "caesar3/c3_mm.eng"
system: "caesar3"
category: game_data
required: true
description: "Caesar III message text"
source_ref: "src/core/lang.c:24, 129-150, 160-165"
note: "Loaded as a pair with c3.eng; c3_mm.rus replaces it on a Russian install."
- name: "c3.sg2"
path: "caesar3/c3.sg2"
system: "caesar3"
category: game_data
required: true
description: "Main graphics index, central climate"
source_ref: "src/core/image.c:48-52, 295-306, src/game/game.c:83-86"
- name: "c3.555"
path: "caesar3/c3.555"
system: "caesar3"
category: game_data
required: true
description: "Main graphics bitmaps, central climate"
source_ref: "src/core/image.c:53-57, 314-317, src/game/game.c:83-86"
- name: "goths.sg2"
path: "caesar3/goths.sg2"
system: "caesar3"
category: game_data
required: true
description: "Barbarian enemy graphics index"
source_ref: "src/core/image.c:79, 667-675, src/game/game.c:87-90"
- name: "goths.555"
path: "caesar3/goths.555"
system: "caesar3"
category: game_data
required: true
description: "Barbarian enemy graphics bitmaps"
source_ref: "src/core/image.c:101, 681-684, src/game/game.c:87-90"
- name: "c3_model.txt"
path: "caesar3/c3_model.txt"
system: "caesar3"
category: game_data
required: true
description: "Building cost and desirability model"
source_ref: "src/building/model.c:83-88, src/game/game.c:101-104"
- name: "The_empire.555"
path: "caesar3/The_empire.555"
system: "caesar3"
category: game_data
required: false
description: "Empire map bitmap"
source_ref: "src/core/image.c:68, 283-293"
note: "A short read is logged and the empire map stays blank."