Cesarus85--mjolnir-vr/source/ai/ai.c

/*
AI.C

symbols in this file:
0002DC80 0080:
	_ai_initialize (0000)
0002DD00 0030:
	_ai_dispose (0000)
0002DD30 0040:
	_ai_dispose_from_old_map (0000)
0002DD70 0010:
	_ai_place (0000)
0002DD80 0040:
	_ai_globals_ai_active (0000)
0002DDC0 0050:
	_ai_globals_dialogue_triggers_enabled (0000)
0002DE10 0050:
	_ai_globals_grenades_enabled (0000)
0002DE60 00b0:
	_ai_get_major_upgrade_chance (0000)
0002DF10 0070:
	_ai_adjust_damage (0000)
0002DF80 00d0:
	_ai_erase (0000)
0002E050 00c0:
	_ai_release_inactive_swarms (0000)
0002E110 0040:
	_code_0002e110 (0000)
0002E150 0150:
	_ai_find_inactive_encounters (0000)
0002E2A0 0130:
	_ai_release_inactive_encounters (0000)
0002E3D0 0070:
	_ai_try_vehicle_eviction (0000)
0002E440 0080:
	_ai_get_responsible_unit (0000)
0002E4C0 0090:
	_ai_handle_death (0000)
0002E550 00d0:
	_ai_handle_killing_spree (0000)
0002E620 0140:
	_ai_handle_allegiance_status_changed (0000)
0002E760 0130:
	_ai_handle_allegiance_broken_notification (0000)
0002E890 00e0:
	_ai_update_team_status (0000)
0002E970 0100:
	_ai_handle_bump (0000)
0002EA70 0110:
	_ai_handle_damage (0000)
0002EB80 0120:
	_code_0002eb80 (0000)
0002ECA0 0070:
	_ai_create_mounted_weapons_for_unit (0000)
0002ED10 0160:
	_ai_handle_deleted_object (0000)
0002EE70 0140:
	_ai_handle_unit_effect (0000)
0002EFB0 0040:
	_ai_handle_enter_vehicle (0000)
0002EFF0 0060:
	_ai_handle_exit_vehicle (0000)
0002F050 0040:
	_code_0002f050 (0000)
0002F090 0500:
	_ai_disconnect_from_structure_bsp (0000)
0002F590 00c0:
	_ai_reconnect_to_structure_bsp (0000)
0002F650 0050:
	_ai_get_race_from_team_index (0000)
0002F6A0 00f0:
	_ai_initialize_for_new_map (0000)
0002F790 00d0:
	_ai_update (0000)
0002F860 0170:
	_ai_consider_major_upgrade (0000)
0002F9D0 0060:
	_code_0002f9d0 (0000)
0002FA30 0170:
	_code_0002fa30 (0000)
0002FBA0 0150:
	_ai_test_line_of_fire (0000)
0002FCF0 03f0:
	_ai_test_line_of_sight (0000)
000300E0 03b0:
	_ai_test_ballistic_line_of_fire (0000)
00030490 0510:
	_ai_handle_editing (0000)
000309A0 0210:
	_code_000309a0 (0000)
00030BB0 0010:
	_ai_enemies_can_see_player (0000)
00030BC0 0010:
	_ai_enemies_attacking_player (0000)
00030BD0 046a:
	_ai_handle_spatial_effect (0000)
00247120 0006:
	??_C@_05PMBAOCDH@quiet?$AA@ (0000)
00247128 0006:
	??_C@_05BAOFOMKD@shout?$AA@ (0000)
00247130 0005:
	??_C@_04FFPBHBOD@loud?$AA@ (0000)
00247138 0007:
	??_C@_06HIDOEFBI@medium?$AA@ (0000)
00247140 0007:
	??_C@_06MJMIHDAA@silent?$AA@ (0000)
00247148 000a:
	??_C@_09EPLOMCJK@ai_update?$AA@ (0000)
00247154 000b:
	??_C@_0L@MPBGDIHA@ai_globals?$AA@ (0000)
00247160 0017:
	??_C@_0BH@OFFADIKK@c?3?2halo?2SOURCE?2ai?2ai?4c?$AA@ (0000)
00247178 000b:
	??_C@_0L@OAAMDEHE@ai?5globals?$AA@ (0000)
00247184 002a:
	??_C@_0CK@KLHIAEEK@force_major?5?$CG?$CG?5is_random?5?$CG?$CG?5rand@ (0000)
002471B0 000f:
	??_C@_0P@DJKGCMDL@?$CFd?5swarm?5units?$AA@ (0000)
002471C0 0026:
	??_C@_0CG@KJABFHAE@result_description?5?$CG?$CG?5more_to_re@ (0000)
002471E8 0045:
	??_C@_0EF@INALGHA@working_memory_size?5?$DO?$DN?5sizeof?$CIst@ (0000)
00247230 0018:
	??_C@_0BI@IJNFHBDG@encounter?5?$CFs?5?$CI?$CFd?5units?$CJ?$AA@ (0000)
00247248 0017:
	??_C@_0BH@EHECFHBL@encounterless?9actor?5?$CFs?$AA@ (0000)
00247260 0015:
	??_C@_0BF@IJHLDNKE@?$CFs?5killing?5spree?3?5?$CFd?$AA@ (0000)
00247278 0009:
	??_C@_08MAAODMKK@player?$CFd?$AA@ (0000)
00247284 0028:
	??_C@_0CI@COCLKLAG@allegiance?5between?5teams?5?$CFs?5and?5@ (0000)
002472AC 0009:
	??_C@_08ELLPFBJE@reformed?$AA@ (0000)
002472B8 0007:
	??_C@_06HKHHAOPL@broken?$AA@ (0000)
002472C0 000d:
	??_C@_0N@PLDCHNDI@?5permanently?$AA@ (0000)
002472D0 0036:
	??_C@_0DG@IOHAMJKK@allegiance?5between?5teams?5?$CFs?5and?5@ (0000)
00247308 005f:
	??_C@_0FP@HJJPEFKF@WARNING?3?5cannot?5create?5mounted?5w@ (0000)
00247368 0038:
	??_C@_0DI@LLKOJPAJ@effect_type?$DO?$DN0?5?$CG?$CG?5effect_type?$DMNU@ (0000)
002473A0 002f:
	??_C@_0CP@KEBPDGDE@volume?$DO?$DN0?5?$CG?$CG?5volume?$DMNUMBER_OF_AI@ (0000)
002473D0 001a:
	??_C@_0BK@IPBEOPCE@actor?9?$DOmeta?4encounterless?$AA@ (0000)
002473EC 0029:
	??_C@_0CJ@ECGMOGMP@?$CFs?3?5disconnect?5and?5transition?5to@ (0000)
00247418 0030:
	??_C@_0DA@HNMNMDJM@?$CFs?3?5?$CFd?5of?5?$CFd?5units?5outside?5PVS?0?5@ (0000)
00247448 0010:
	??_C@_0BA@OOMJBPJL@?5?$CIdeleted?5some?$CJ?$AA@ (0000)
00247458 002b:
	??_C@_0CL@CHFDAENO@?$CFs?3?5no?5units?5inside?5PVS?0?5do?5not?5@ (0000)
00247484 002f:
	??_C@_0CP@IOHLMJDL@?$CFs?3?5all?5swarm?5inside?5PVS?0?5transi@ (0000)
002474B8 0041:
	??_C@_0EB@GAAEJBAL@components_outside_pvs_count?5?$DM?5M@ (0000)
002474FC 0027:
	??_C@_0CH@BCDOMGFK@target_prop?9?$DOparent_prop_index?5?$CB@ (0000)
00247524 0003:
	??_C@_02DKCKIIND@?$CFs?$AA@ (0000)
00247528 0056:
	??_C@_0FG@MCBCGPDK@?$CFs?1?$CFs?5major?5upgrade?5chance?5?$CF?42f?3@ (0000)
00247580 0003:
	??_C@_02NFLNFON@NO?$AA@ (0000)
00247584 0004:
	??_C@_03IPHJCBHH@YES?$AA@ (0000)
00247588 0004:
	__real@beaaaaab (0000)
00247590 005d:
	??_C@_0FN@FHDONHFP@adjust_encounter?9?$DOplatoon_base?5?$CL@ (0000)
002475F0 0055:
	??_C@_0FF@ENLKAKCD@adjust_encounter?9?$DOplatoon_base?5?$DO@ (0000)
00247648 0057:
	??_C@_0FH@PKEMGHNJ@adjust_encounter?9?$DOsquad_base?5?$CL?5a@ (0000)
002476A0 004f:
	??_C@_0EP@KKLKNEDM@adjust_encounter?9?$DOsquad_base?5?$DO?$DN?5@ (0000)
002476F0 003c:
	??_C@_0DM@GLFLBCJN@editing?5caused?5an?5overflow?5of?5MA@ (0000)
0024772C 003a:
	??_C@_0DK@JGCJOKPE@editing?5caused?5an?5overflow?5of?5MA@ (0000)
00247768 004d:
	??_C@_0EN@KGPGOCFG@?$CIdistance_to_effect?5?$DO?$DN?50?$CJ?5?$CG?$CG?5?$CIdi@ (0000)
002477B8 0007:
	??_C@_06MCBHDBOL@submit?$AA@ (0000)
002477C0 003b:
	??_C@_0DL@MFAGBNKG@effect_type?$DO?$DN0?5?$CG?$CG?5effect_type?$DMNU@ (0000)
002477FC 0008:
	??_C@_07NBEECHDO@count?$DO0?$AA@ (0000)
002B6CF0 0618:
	_data_002b6cf0 (0000)
	_ai_sound_volume_enum (060c)
*/

/* ---------- headers */

#include "cseries.h"

#include "ai/ai_runtime.h"

#include "ai/actors.h"
#include "ai/encounters.h"
#include "ai/props.h"
#include "units/units.h"

#include "memory/data.h"

#include <stddef.h>

/* ---------- constants */

enum
{
	_ai_communication_vehicle_entry = 36,
	_ai_communication_vehicle_exit = 37,
};

/* ---------- macros */

/* ---------- structures */

struct ai_globals_prefix
{
	boolean ai_active;
	boolean ai_initialized_for_map;
	byte reserved002[0xE];
	boolean dialogue_triggers_enabled;
	byte reserved011[0x3A3];
	boolean grenades_enabled;
};

struct actor_iterator
{
	struct data_iterator encounter_iterator;
	boolean iterated_encounterless_list;
	boolean active_only;
	byte pad[2];
	long index;
	long next_index;
};

struct encounter_actor_iterator
{
	long encounter_index;
	long index;
	long next_index;
};

typedef char ai_globals_prefix_active_offset_assert[
	offsetof(struct ai_globals_prefix, ai_active) == 0x0 ? 1 : -1];
typedef char ai_globals_prefix_initialized_offset_assert[
	offsetof(struct ai_globals_prefix, ai_initialized_for_map) == 0x1 ? 1 : -1];
typedef char ai_globals_prefix_dialogue_offset_assert[
	offsetof(struct ai_globals_prefix, dialogue_triggers_enabled) == 0x10 ? 1 : -1];
typedef char ai_globals_prefix_grenades_offset_assert[
	offsetof(struct ai_globals_prefix, grenades_enabled) == 0x3B4 ? 1 : -1];
typedef char ai_globals_prefix_size_assert[
	sizeof(struct ai_globals_prefix) == 0x3B5 ? 1 : -1];
typedef char ai_unit_actor_index_offset_assert[
	offsetof(struct unit_datum, unit.actor_index) == 0x1A4 ? 1 : -1];
typedef char ai_actor_last_vehicle_exit_forced_offset_assert[
	offsetof(struct actor_datum, emotions.last_vehicle_exit_forced) == 0x38C ? 1 : -1];
typedef char ai_actor_iterator_size_assert[
	sizeof(struct actor_iterator) == 0x1C ? 1 : -1];
typedef char ai_actor_iterator_index_offset_assert[
	offsetof(struct actor_iterator, index) == 0x14 ? 1 : -1];
typedef char ai_encounter_actor_iterator_size_assert[
	sizeof(struct encounter_actor_iterator) == 0xC ? 1 : -1];
typedef char ai_encounter_actor_iterator_index_offset_assert[
	offsetof(struct encounter_actor_iterator, index) == 0x4 ? 1 : -1];
typedef char ai_actor_squad_index_offset_assert[
	offsetof(struct actor_datum, meta.squad_index) == 0x3A ? 1 : -1];
typedef char ai_actor_platoon_index_offset_assert[
	offsetof(struct actor_datum, meta.platoon_index) == 0x3C ? 1 : -1];
typedef char ai_actor_team_index_offset_assert[
	offsetof(struct actor_datum, meta.team_index) == 0x3E ? 1 : -1];
typedef char ai_unit_player_index_offset_assert[
	offsetof(struct unit_datum, unit.player_index) == 0x1C8 ? 1 : -1];
typedef char ai_unit_team_index_offset_assert[
	offsetof(struct unit_datum, object.owner_team_index) == 0x68 ? 1 : -1];
typedef char ai_prop_iterator_size_assert[
	sizeof(struct prop_iterator) == 0x8 ? 1 : -1];
typedef char ai_prop_iterator_index_offset_assert[
	offsetof(struct prop_iterator, index) == 0x0 ? 1 : -1];
typedef char ai_prop_team_index_offset_assert[
	offsetof(struct prop_datum, team_index) == 0x12 ? 1 : -1];
typedef char ai_prop_unit_index_offset_assert[
	offsetof(struct prop_datum, unit_index) == 0x18 ? 1 : -1];
typedef char ai_prop_target_weight_offset_assert[
	offsetof(struct prop_datum, target_weight) == 0x50 ? 1 : -1];
typedef char ai_prop_enemy_offset_assert[
	offsetof(struct prop_datum, enemy) == 0x60 ? 1 : -1];
typedef char ai_prop_ally_offset_assert[
	offsetof(struct prop_datum, ally) == 0x61 ? 1 : -1];
typedef char ai_prop_unopposable_enemy_offset_assert[
	offsetof(struct prop_datum, unopposable_enemy) == 0xA4 ? 1 : -1];

/* ---------- prototypes */

void ai_communication_dispose(
	void);
void ai_communication_dispose_from_old_map(
	void);
void ai_script_dispose(
	void);
void ai_script_dispose_from_old_map(
	void);

void encounters_dispose(
	void);
void encounters_dispose_from_old_map(
	void);
void props_dispose_from_old_map(
	void);
void actors_dispose_from_old_map(
	void);
void paths_dispose_from_old_map(
	void);
void ai_profile_dispose(
	void);
void ai_profile_dispose_from_old_map(
	void);
void ai_debug_dispose(
	void);
void ai_debug_dispose_from_old_map(
	void);

void ai_communication_event(
	short type,
	long unit_index,
	long prop_index,
	long object_index,
	long position_index,
	long structure_index,
	void const *context);

void actor_iterator_new(
	struct actor_iterator *iterator,
	boolean active_only);
struct actor_datum *actor_iterator_next(
	struct actor_iterator *iterator);
void actor_erase(
	long actor_index,
	boolean immediate);
boolean game_team_is_enemy(
	short team_index0,
	short team_index1);
boolean game_team_is_ally(
	short team_index0,
	short team_index1);
boolean actor_compute_prop_unopposable(
	long actor_index,
	long prop_index);
real actor_compute_prop_target_weight(
	long actor_index,
	long prop_index);
void actor_stimulus_vehicle_eviction(
	long actor_index);

boolean code_000309a0(
	boolean must_be_attacking);

/* ---------- globals */

extern struct ai_globals_prefix *ai_globals;

/* ---------- public code */

void ai_dispose(
	void)
{
	ai_communication_dispose();
	ai_script_dispose();
	encounters_dispose();
	props_dispose();
	actors_dispose();
	paths_dispose();
	ai_profile_dispose();
	ai_debug_dispose();

	return;
}

void ai_dispose_from_old_map(
	void)
{
	ai_communication_dispose_from_old_map();
	ai_script_dispose_from_old_map();
	encounters_dispose_from_old_map();
	props_dispose_from_old_map();
	actors_dispose_from_old_map();
	paths_dispose_from_old_map();
	ai_profile_dispose_from_old_map();
	ai_debug_dispose_from_old_map();

	ai_globals->ai_initialized_for_map = FALSE;

	return;
}

void ai_place(
	void)
{
	encounters_create_for_new_map();

	return;
}

void ai_globals_ai_active(
	boolean enabled)
{
	match_assert("c:\\halo\\SOURCE\\ai\\ai.c", 0x13A, ai_globals);

	ai_globals->ai_active = enabled;

	return;
}

void ai_globals_dialogue_triggers_enabled(
	boolean enabled)
{
	match_assert("c:\\halo\\SOURCE\\ai\\ai.c", 0x143, ai_globals);

	ai_globals->dialogue_triggers_enabled = enabled;

	return;
}

void ai_globals_grenades_enabled(
	boolean enabled)
{
	match_assert("c:\\halo\\SOURCE\\ai\\ai.c", 0x14C, ai_globals);

	ai_globals->grenades_enabled = enabled;

	return;
}

void ai_erase(
	long encounter_index,
	long platoon_index,
	long squad_index,
	boolean immediate)
{
	if (!ai_globals->ai_initialized_for_map)
		return;

	if (encounter_index == NONE)
	{
		struct actor_iterator iterator;

		actor_iterator_new(&iterator, FALSE);
		while (actor_iterator_next(&iterator))
			actor_erase(iterator.index, immediate);
	}
	else
	{
		struct encounter_actor_iterator iterator;
		struct actor_datum *actor;

		encounter_actor_iterator_new(&iterator, encounter_index);
		actor = encounter_actor_iterator_next(&iterator);

		while (actor)
		{
			if ((platoon_index == NONE ||
				actor->meta.platoon_index == platoon_index) &&
				(squad_index == NONE ||
				actor->meta.squad_index == squad_index))
			{
				actor_erase(iterator.index, immediate);
			}

			actor = encounter_actor_iterator_next(&iterator);
		}
	}

	return;
}

boolean ai_try_vehicle_eviction(
	long actor_index,
	long entering_unit_index,
	boolean immediate)
{
	struct actor_datum *actor = actor_get(actor_index);
	boolean result = FALSE;

	if (entering_unit_index != NONE)
	{
		struct unit_datum *entering_unit = unit_get(entering_unit_index);

		if (entering_unit->unit.player_index != NONE &&
			!game_team_is_enemy(
				entering_unit->object.owner_team_index,
				actor->meta.team_index))
		{
			result = TRUE;

			if (immediate)
				actor_stimulus_vehicle_eviction(actor_index);
		}
	}

	return result;
}

void ai_update_team_status(
	void)
{
	struct actor_iterator actor_iterator;
	struct actor_datum *actor;

	actor_iterator_new(&actor_iterator, TRUE);
	actor = actor_iterator_next(&actor_iterator);

	while (actor)
	{
		struct prop_iterator prop_iterator;
		struct prop_datum *prop;

		prop_iterator_new(&prop_iterator, actor_iterator.index);
		prop = prop_iterator_next(&prop_iterator);

		while (prop)
		{
			struct unit_datum *unit = unit_get(prop->unit_index);

			prop->team_index = unit->object.owner_team_index;
			prop->enemy = game_team_is_enemy(
				actor->meta.team_index,
				prop->team_index);
			prop->ally = game_team_is_ally(
				actor->meta.team_index,
				prop->team_index);
			prop->unopposable_enemy = actor_compute_prop_unopposable(
				actor_iterator.index,
				prop_iterator.index);
			prop->target_weight = actor_compute_prop_target_weight(
				actor_iterator.index,
				prop_iterator.index);

			prop = prop_iterator_next(&prop_iterator);
		}

		actor = actor_iterator_next(&actor_iterator);
	}

	return;
}

void ai_handle_enter_vehicle(
	long unit_index,
	long vehicle_index)
{
	struct unit_datum *unit = unit_get(unit_index);

	(void)vehicle_index;

	if (unit->unit.actor_index != NONE)
	{
		ai_communication_event(
			_ai_communication_vehicle_entry,
			unit_index,
			NONE,
			NONE,
			NONE,
			NONE,
			NULL);
	}

	return;
}

void ai_handle_exit_vehicle(
	long unit_index,
	long vehicle_index)
{
	struct unit_datum *unit = unit_get(unit_index);
	long actor_index = unit->unit.actor_index;
	struct actor_datum *actor;

	(void)vehicle_index;

	if (actor_index == NONE)
	{
		return;
	}

	actor = actor_get(actor_index);
	if (!actor->emotions.last_vehicle_exit_forced)
	{
		ai_communication_event(
			_ai_communication_vehicle_exit,
			unit_index,
			NONE,
			NONE,
			NONE,
			NONE,
			NULL);
	}

	actor->emotions.last_vehicle_exit_forced = FALSE;

	return;
}

boolean ai_enemies_can_see_player(
	void)
{
	return code_000309a0(FALSE);
}

boolean ai_enemies_attacking_player(
	void)
{
	return code_000309a0(TRUE);
}

/* ---------- private code */