Working SNES save loading!
This commit is contained in:
parent
9df22ba5a1
commit
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10
Node2D.gd
10
Node2D.gd
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@ -1,4 +1,14 @@
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extends Node2D
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var save_slots = []
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var save_slot_dicts = []
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func _ready():
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Engine.set_target_fps(60)
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var save_file := File.new()
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var error := save_file.open('test.srm', File.READ)
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if error == OK:
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for i in 4:
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save_slots.append(SaveLoader.get_save_slot(save_file, i))
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save_slot_dicts.append(SaveLoader.get_struct(save_slots[i], 'Save_slot'))
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print('Loaded test save file')
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@ -0,0 +1,153 @@
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struct Character
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3 character_id # 0=Bartz, 1=Lenna, 2=Galuf, 3=Faris, 4=Krile, 5/6/7 unused
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1 is_female # 0=male, 1=female
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2 unk0 # Two unknown, possibly unused bits
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1 is_absent # 0=present, 1=absent
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1 is_back_row
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8 current_job_id
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8 level
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24 experience
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16 hp_current
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16 hp_max
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16 mp_current
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16 mp_max
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8 equipped_head
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8 equipped_body
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8 equipped_acc
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8 equipped_rh_shield
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8 equipped_lh_shield
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8 equipped_rh_weapon
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8 equipped_lh_weapon
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8 caught_monster
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8 ability_1
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8 ability_2
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8 ability_3
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8 ability_4
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8 status_1
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8 status_2
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8 status_3
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8 status_4
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8 action_flags
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8 damage_mod
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16 innates
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8 magic_element_up
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8 equip_weight
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8 base_strength
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8 base_agility
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8 base_stamina
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8 base_magic
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8 current_strength
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8 current_agility
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8 current_stamina
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8 current_magic
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8 evasion
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8 defense
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8 magic_evasion
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8 magic_defense
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8 elemental_absorb
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8 elemental_evade
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8 elemental_immune
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8 elemental_half
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8 elemental_weakness
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8 resistance_status_1
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8 resistance_status_2
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8 resistance_status_3
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8 specialty_weapon
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8 specialty_equipment
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8 current_job_level
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16 current_job_abp
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8 spell_level_1
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8 spell_level_2
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8 spell_level_3
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32 equipment_category
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16 attack
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8 attack_id_reaction_unused
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8 unk1
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8 unk2
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8 unk3
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8 freelancer_strength
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8 freelancer_agility
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8 freelancer_stamina
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8 freelancer_magic
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16 freelancer_innates
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struct Job_progress
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12 abp
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4 level
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struct Config
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1 command_set
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3 message_speed
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1 is_wait_mode # 0=active, 1=wait???
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3 battle_speed # Confirm order on this byte??
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16 menu_color # RGB555 - really? not BGR?
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1 reequip_mode # 0=optimum, 1=empty??
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1 is_stereo # 0=mono, 1=stereo??
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1 is_memory_cursor # 0=reset, 1=memory??
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4 unk0
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1 show_atb_gauge
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6 unk1
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1 is_controller_custom
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1 is_controller_2p
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8 button_A
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8 button_B
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8 button_X
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8 button_Y
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8 button_L
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8 button_R
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8 button_Select
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8[4] character_player_nums
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8[4][4] character_shortcut_commands
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struct Vehicle
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2 mode_switching
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3 movement_type
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3 map_id
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7 unk0
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1 is_hidden # 0=show, 1=hide
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8 x
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8 y
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struct Save_slot
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Character[4] characters
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8[256] inventory_item_ids
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8[256] inventory_item_qtys
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24 unlocked_jobs
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Job_progress[4][22] character_jobs_progress
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8[4] character_abilities_learned_count
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8[4][20] character_abilities_learned
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24 current_gil
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32 game_time_frames
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16 num_enemies_defeated
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8[20] magic_learned
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8[4][6] character_names # Bartz, Lenna, Galuf, Faris, Krile. Dialog is hardcoded for everyone except Bartz's name anyway...
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8 magic_lamp_next_summon
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8 num_battles_escaped # Brave Blade vs Chicken Knife
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8 wonder_rod_magic
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16 num_total_battles
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16 num_times_saved
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8 last_battle_results # 0=victory, 1=game over, 2=escaped
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8[15] flags_battle_events
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8[32] flags_treasure_opened
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8[96] flags_events # RAM map mentions $D8E000. This is likely critical to story progression and scripting.
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16 map_id_inner
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16 map_id_world
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8 pos_x
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8 pos_y
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8 current_character_sprite
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8 current_character_facing
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8 current_vehicle
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Vehicle veh_chocobo
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Vehicle veh_black_chocobo
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Vehicle veh_hiryuu
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Vehicle veh_submarine
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Vehicle veh_steamship
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Vehicle veh_airship
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16 teleport_map_id
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8 teleport_map_x
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8 teleport_map_y
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8 initial_seed
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8 walking_speed # 0=normal, 1=double (fast), 80=half (slow)
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8 timed_event_active
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16 timed_event_timer
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16 timed_event_end
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@ -27,6 +27,7 @@ SoundLoader="*res://scripts/loaders/sound_loader.gd"
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SpriteLoader="*res://scripts/loaders/sprite_loader.gd"
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MapLoader="*res://scripts/loaders/map_loader.gd"
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RomLoader="*res://scripts/loaders/rom_loader.gd"
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SaveLoader="*res://scripts/loaders/save_loader.gd"
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[debug]
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@ -1,5 +1,7 @@
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extends Node
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const SLOT_IN_USE := 0xE41B
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var schema := {}
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# FFV SRAM is 4 slots of 0x700byte save files
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# $0000-$06FF - Save Slot 1
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# $0700-$0DFF - Save Slot 2
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@ -29,7 +31,7 @@ func get_slot_checksum(slot: StreamPeerBuffer) -> int:
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slot.seek(0)
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var checksum := 0
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for i in 0x600: # Last 0x100 bytes aren't checksummed
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checksum += slot.get_16()
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checksum += slot.get_u16()
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if checksum > 0xFFFF: # Addition of shorts can only overflow
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checksum &= 0xFFFF
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if i < 0x5FF:
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@ -39,76 +41,146 @@ func get_slot_checksum(slot: StreamPeerBuffer) -> int:
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func get_character(slot: StreamPeerBuffer, character_slot_id: int) -> Dictionary:
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var character := {}
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slot.seek(0x50 * character_slot_id)
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var b := slot.get_8()
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var b := slot.get_u8()
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character['id'] = b & 0x07 # 0Bartz/1Lenna/2Galuf/3Faris/4Krile/5/6/7
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character['gender'] = (b >> 3) & 1 # 0 = male, 1 = female
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# Two unknown, possibly unused bits
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character['present'] = (b >> 6) & 1 # 0 = absent?
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character['back_row'] = (b >> 7) & 1
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character['job_id'] = slot.get_8()
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character['level'] = slot.get_8()
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character['experience'] = slot.get_16() | (slot.get_8() << 16)
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character['hp_current'] = slot.get_16()
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character['hp_max'] = slot.get_16()
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character['mp_current'] = slot.get_16()
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character['mp_max'] = slot.get_16()
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character['equipped_head'] = slot.get_8()
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character['equipped_body'] = slot.get_8()
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character['equipped_acc'] = slot.get_8()
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character['equipped_rh_shield'] = slot.get_8()
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character['equipped_lh_shield'] = slot.get_8()
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character['equipped_rh_weapon'] = slot.get_8()
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character['equipped_lh_weapon'] = slot.get_8()
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character['caught_monster'] = slot.get_8()
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character['ability_1'] = slot.get_8()
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character['ability_2'] = slot.get_8()
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character['ability_3'] = slot.get_8()
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character['ability_4'] = slot.get_8()
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character['action_flags'] = slot.get_8()
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character['damage_mod'] = slot.get_8()
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character['innates'] = slot.get_16()
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character['magic_element_up'] = slot.get_8()
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character['equip_weight'] = slot.get_8()
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character['base_strength'] = slot.get_8()
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character['base_agility'] = slot.get_8()
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character['base_stamina'] = slot.get_8()
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character['base_magic'] = slot.get_8()
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character['current_strength'] = slot.get_8()
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character['current_agility'] = slot.get_8()
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character['current_stamina'] = slot.get_8()
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character['current_magic'] = slot.get_8()
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character['evasion'] = slot.get_8()
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character['defense'] = slot.get_8()
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character['magic_evasion'] = slot.get_8()
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character['magic_defense'] = slot.get_8()
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character['elemental_absorb'] = slot.get_8()
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character['elemental_evade'] = slot.get_8()
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character['elemental_immune'] = slot.get_8()
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character['elemental_half'] = slot.get_8()
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character['elemental_weakness'] = slot.get_8()
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character['resistance_status_1'] = slot.get_8()
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character['resistance_status_2'] = slot.get_8()
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character['resistance_status_3'] = slot.get_8()
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character['specialty_weapon'] = slot.get_8()
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character['specialty_equipment'] = slot.get_8()
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character['current_job_level'] = slot.get_8()
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character['current_job_abp'] = slot.get_16()
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character['spell_level_1'] = slot.get_8()
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character['spell_level_2'] = slot.get_8()
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character['spell_level_3'] = slot.get_8()
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character['equipment_category'] = slot.get_32()
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character['attack'] = slot.get_16()
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character['attack_id_reaction_unused'] = slot.get_8()
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character['unk1'] = slot.get_8()
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character['unk2'] = slot.get_8()
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character['unk3'] = slot.get_8()
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character['freelancer_strength'] = slot.get_8()
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character['freelancer_agility'] = slot.get_8()
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character['freelancer_stamina'] = slot.get_8()
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character['freelancer_magic'] = slot.get_8()
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character['freelancer_innates'] = slot.get_16()
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character['job_id'] = slot.get_u8()
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character['level'] = slot.get_u8()
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character['experience'] = slot.get_u16() | (slot.get_u8() << 16)
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character['hp_current'] = slot.get_u16()
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character['hp_max'] = slot.get_u16()
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character['mp_current'] = slot.get_u16()
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character['mp_max'] = slot.get_u16()
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character['equipped_head'] = slot.get_u8()
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character['equipped_body'] = slot.get_u8()
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character['equipped_acc'] = slot.get_u8()
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character['equipped_rh_shield'] = slot.get_u8()
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character['equipped_lh_shield'] = slot.get_u8()
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character['equipped_rh_weapon'] = slot.get_u8()
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character['equipped_lh_weapon'] = slot.get_u8()
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character['caught_monster'] = slot.get_u8()
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character['ability_1'] = slot.get_u8()
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character['ability_2'] = slot.get_u8()
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character['ability_3'] = slot.get_u8()
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character['ability_4'] = slot.get_u8()
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character['action_flags'] = slot.get_u8()
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character['damage_mod'] = slot.get_u8()
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character['innates'] = slot.get_u16()
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character['magic_element_up'] = slot.get_u8()
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character['equip_weight'] = slot.get_u8()
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character['base_strength'] = slot.get_u8()
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character['base_agility'] = slot.get_u8()
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character['base_stamina'] = slot.get_u8()
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character['base_magic'] = slot.get_u8()
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character['current_strength'] = slot.get_u8()
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character['current_agility'] = slot.get_u8()
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character['current_stamina'] = slot.get_u8()
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character['current_magic'] = slot.get_u8()
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character['evasion'] = slot.get_u8()
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character['defense'] = slot.get_u8()
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character['magic_evasion'] = slot.get_u8()
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character['magic_defense'] = slot.get_u8()
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character['elemental_absorb'] = slot.get_u8()
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character['elemental_evade'] = slot.get_u8()
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character['elemental_immune'] = slot.get_u8()
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character['elemental_half'] = slot.get_u8()
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character['elemental_weakness'] = slot.get_u8()
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character['resistance_status_1'] = slot.get_u8()
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character['resistance_status_2'] = slot.get_u8()
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character['resistance_status_3'] = slot.get_u8()
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character['specialty_weapon'] = slot.get_u8()
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character['specialty_equipment'] = slot.get_u8()
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character['current_job_level'] = slot.get_u8()
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character['current_job_abp'] = slot.get_u16()
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character['spell_level_1'] = slot.get_u8()
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character['spell_level_2'] = slot.get_u8()
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character['spell_level_3'] = slot.get_u8()
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character['equipment_category'] = slot.get_u32()
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character['attack'] = slot.get_u16()
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character['attack_id_reaction_unused'] = slot.get_u8()
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character['unk1'] = slot.get_u8()
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character['unk2'] = slot.get_u8()
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character['unk3'] = slot.get_u8()
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character['freelancer_strength'] = slot.get_u8()
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character['freelancer_agility'] = slot.get_u8()
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character['freelancer_stamina'] = slot.get_u8()
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character['freelancer_magic'] = slot.get_u8()
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character['freelancer_innates'] = slot.get_u16()
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return character
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func get_struct(buffer: StreamPeer, struct_name: String) -> Dictionary:
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# As this is recursive, it does not seek to the start of the buffer.
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# Make sure it is set to where you want to start reading.
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if not (struct_name in schema):
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print_debug('Attempted to get undeclared struct: "%s"' % struct_name)
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return {}
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var struct := {}
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var leftover_bits := 0
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var leftover_bits_value := 0
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for line in schema[struct_name]:
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var t: String = line[0]
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var k: String = line[1]
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match t:
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'8':
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struct[k] = buffer.get_u8()
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'16':
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struct[k] = buffer.get_u16()
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'24':
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struct[k] = buffer.get_u16() | (buffer.get_u8() << 16)
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'32':
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struct[k] = buffer.get_u32()
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_:
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var arr_split = t.split('[')
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match arr_split.size():
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1:
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# Check if it's an odd number of bits
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var b := int(t)
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if b > 0:
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# Check if we have leftover bits to fill this order
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while leftover_bits < b:
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leftover_bits_value |= buffer.get_u8() << leftover_bits
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leftover_bits += 8
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struct[k] = leftover_bits_value & ((1 << b)-1)
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leftover_bits_value = leftover_bits_value >> b
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leftover_bits -= b
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else:
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# It's a struct
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struct[k] = get_struct(buffer, t)
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2:
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var n0 := int(arr_split[1].trim_suffix(']'))
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var arr = []
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if arr_split[0] == '8':
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arr = PoolByteArray()
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for i in n0:
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arr.append(buffer.get_u8())
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else:
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for i in n0:
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arr.append(get_struct(buffer, arr_split[0]))
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struct[k] = arr
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3:
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var n0 := int(arr_split[1].trim_suffix(']'))
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var n1 := int(arr_split[2].trim_suffix(']'))
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var arr0 := []
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if arr_split[0] == '8':
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for i in n0:
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var arr1 := PoolByteArray()
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for j in n1:
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arr1.append(buffer.get_u8())
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arr0.append(arr1)
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else:
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for i in n0:
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var arr1 := []
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for j in n1:
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arr1.append(get_struct(buffer, arr_split[0]))
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arr0.append(arr1)
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struct[k] = arr0
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var s:
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print_debug('struct value array dims of %d are not yet supported (struct "%s")' % [s, struct_name])
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return struct
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func get_save_slot(sram: File, slot_id: int):
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var buffer := StreamPeerBuffer.new()
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sram.seek(0x700 * slot_id)
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@ -126,3 +198,40 @@ func save_slot(sram: File, slot_id: int, slot: StreamPeerBuffer):
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func delete_save_slot(sram: File, slot_id: int):
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sram.seek(0x1FF8 + (slot_id*2))
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sram.store_16(0)
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func _ready():
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var file := File.new()
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var error = file.open('res://data/SNES_save.txt', File.READ)
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if error == OK:
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var current_struct_name = null
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var current_struct = []
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var line_num := 0
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while file.get_position() < file.get_len():
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var line := file.get_csv_line('\t')
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line_num += 1
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var size = line.size()
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||||
if size < 2:
|
||||
if current_struct_name:
|
||||
# Store struct we just finished declaring
|
||||
schema[current_struct_name] = current_struct
|
||||
current_struct = []
|
||||
current_struct_name = null
|
||||
continue
|
||||
# if size < 2:
|
||||
# print_debug('Malformed schema file: line %d - size %d - "%s"' % [line_num, line.size(), line])
|
||||
# continue
|
||||
# Size is at least 2
|
||||
if line[0] == 'struct':
|
||||
# New struct declaration
|
||||
if current_struct_name:
|
||||
# Store one we just finished declaring
|
||||
schema[current_struct_name] = current_struct
|
||||
current_struct = []
|
||||
current_struct_name = line[1]
|
||||
else:
|
||||
# TODO: Maybe store the trailing comments somewhere?
|
||||
current_struct.append(line)
|
||||
# Make sure we saved the final struct
|
||||
if current_struct_name:
|
||||
schema[current_struct_name] = current_struct
|
||||
file.close()
|
||||
|
|
|
|||
Loading…
Reference in New Issue