Space Combat Auto-Resolve

Entry Point

FUN_005457f0 → FUN_00549910 (77 lines)

Called from the system battle orchestrator (FUN_00514a60) when space combat is triggered.

7-Phase Pipeline

Each phase follows the same pattern: 1. Get stats via a getter function → returns two sides' combat objects 2. Call per-side resolver with side=1 (attacker fires first), then side=0 (defender fires) 3. Resolver dispatches via vtable to the actual combat calculation

#	Phase	Gate Flag	Stat Getter	Per-Side Resolver	Vtable	Notif Handler	Type Code
1	Init	—	—	FUN_005442f0	—	—	—
2	Fleet eval	—	—	FUN_00544da0 (96 lines)	—	—	—
3	Weapon fire	+0x58 & 0x01 (active) & ~0x40 (enabled)	FUN_005434b0	FUN_00543b60	+0x1c4	FUN_0054a1d0 → vtable +0x1f4	0x04
4	Shield absorb	+0x58 & 0x40	FUN_005434b0	FUN_00543bd0	+0x1c8	FUN_0054a260	0x20
5	Hull damage	+0x58 & 0x40	FUN_00543550	FUN_00543cb0	+0x1d0	FUN_0054a380	0x80
6	Fighter engage	+0x58 & 0x40	FUN_00543690	FUN_00543d20	+0x1d4	FUN_0054a410	0x100
7	Result	—	5 getters	FUN_005445d0 (175 lines)	—	—	—
8	Post-combat	—	—	FUN_00544a20 (86 lines)	—	—	—

Flag Register at this+0x58

Bitfield controlling combat state:

Bit	Mask	Meaning
0	0x01	Space combat active
1	0x02	Weapon fire phase (attacker side)
2	0x04	Weapon fire type code
5	0x20	Shield absorb type code
6	0x40	Combat phases enabled (shields, hull, fighters)
7	0x80	Hull damage type code
8	0x100	Fighter engagement type code

Notification Handlers

Each combat phase sends notifications to two observer channels (sides 1 and 2) via FUN_00539fd0(this, side):

Handler	Calls	Purpose
FUN_0054a1d0	FUN_0054a1d0 → vtable+500	Weapon damage applied
FUN_0054a260	FUN_0054a260 → vtable+0x1c8	Shield absorption applied
FUN_0054a380	FUN_0054a380 → vtable+0x1d0	Hull damage applied
FUN_0054a410	FUN_0054a410 → vtable+0x1d4	Fighter damage applied

Difficulty Modifier

Line 21 of FUN_0054a1d0: FUN_004fd600(param_1, *(uint *)((int)this + 0x24) >> 4 & 3)

Extracts 2 bits from offset +0x24 bits 4-5 = difficulty level (0-3). This modifies combat outcomes per difficulty setting.

Combat Result (FUN_005445d0)

1. Gathers all 5 stat types (weapons, shields, specials, fighters, 5th unknown)
2. Checks "alive" flag at offset +0xac, bit 0 for each unit
3. Fighter exception: +0x50 & 0x08 allows dead fighters to count as combat-ready
4. Iterates remaining fleet units to count survivors
5. Family ID 0x73: special entity check (Death Star?)
6. Calls FUN_00543d90 per side to determine winner
7. Alternative path via FUN_00534640 for special entities

Decompiled Files

• FUN_00549910.c—orchestrator (not saved separately, in FUN_005457f0)
• FUN_005442f0_combat_init.c—initialization
• FUN_00544da0_fleet_eval.c—fleet evaluation (96 lines)
• FUN_00544030_weapon_damage.c—weapon phase
• FUN_00544130_shield_absorb.c—shield phase (83 lines)
• FUN_005443f0_hull_damage_apply.c—hull phase
• FUN_005444e0_fighter_engage.c—fighter phase
• FUN_005445d0_combat_result.c—result determination (175 lines)
• FUN_00544a20_post_combat.c—post-combat cleanup (86 lines)
• FUN_00543b60.c through FUN_00543d20.c—per-side resolvers
• FUN_005434b0.c through FUN_00543690.c—stat getters
• FUN_0054a1d0.c through FUN_0054a410.c—notification handlers