Asset Loader

.gitignore

@@ -1,2 +1,8 @@
+.DS_Store
+
 # Godot 4+ specific ignores
 .godot/
+
+export_presets.cfg
+
+/AuthKey_VSYTQ75GZQ.p8

AssetLoaders/Enums.gd

@@ -0,0 +1,70 @@
+class_name Enums
+
+enum TileID {
+	TileVoid = 0,
+	TileBlank = 1,
+	TileHome = 2,
+	TileBattle = 3,
+	TileDraw = 4,
+	TileBonus = 5,
+	TileDrop = 6,
+	TileWarp = 7,
+	TileDrawx2 = 8,
+	TileBonusx2 = 9,
+	TileDropx2 = 10,
+	TileFlatWall = 11,
+	TileVoid2 = 12, # i'm not sure why there's 8 voids, or if they're even used
+	TileVoid3 = 13,
+	TileVoid4 = 14,
+	TileVoid5 = 15,
+	TileVoid6 = 16,
+	TileVoid7 = 17,
+	TileDeck = 18,
+	TileVoid8 = 19,
+	TileBattlex2 = 20,
+	TileMove = 21,
+	TileMovex2 = 22,
+	TileWarpMove = 23,
+	TileWarpMovex2 = 24,
+	TileIce = 25,
+	TileSnow = 26,
+	TileHeal = 27,
+	TileHealx2 = 28,
+	TileEvent = 29, # OJEdit says "Event (Blank Tile)"
+	TileUnknown = 30,
+	TileCoopBoss = 31,
+	TileDamage = 32,
+	TileDamagex2 = 33
+}
+
+static func get_tile_texture(id: int):
+	match id:
+		0: return ""
+		1: return "mass_common0.dat"
+		2: return "mass_check0.dat"
+		3: return "mass_encount0.dat"
+		4: return "mass_draw0.dat"
+		5: return "mass_bonus0.dat"
+		6: return "mass_drop0.dat"
+		7: return "mass_warp0.dat"
+		8: return "mass_drawL2.dat"
+		9: return "mass_bonusL2.dat"
+		10: return "mass_dropL2.dat"
+		11: return "mass_common0.dat"
+		12, 13, 14, 15, 16, 17: return ""
+		18: return "mass_editordeck.dat"
+		19: return ""
+		20: return "mass_encountL2.dat"
+		21: return "mass_move0.dat"
+		22: return "mass_moveL2.dat"
+		23: return "mass_warpmove0.dat"
+		24: return "mass_warpmoveL2.dat"
+		25: return "mass_snow0.dat"
+		26: return "mass_snow0.dat"
+		27: return "mass_heal0.dat"
+		28: return "mass_healL2.dat"
+		29: return "mass_common0.dat"
+		30: return "mass_common0.dat"
+		31: return "mass_boss.dat"
+		32: return "mass_damage.dat"
+		33: return "mass_damageL2.dat"

AssetLoaders/PakAssetLoader.gd

@@ -0,0 +1,99 @@
+class_name PakAssetLoader
+
+static var key = "a8Yb5$IpVobR,1Xph!k(#!B9h$V[o[r-I'x.37Q%E;lt2wGgk)hNF_p_!mF?Ds54.*8ErbCK,30".to_utf8_buffer()
+
+#loads a file from a .pak file.
+static func load_file(path: String):
+	var split = path.split(".pak/")
+	var pak = split[0]
+	var filename = split[1]
+	
+	var zip_reader = ZIPReader.new()
+	var err = zip_reader.open(pak + ".pak")
+	if err != OK:
+		report_errors(err, pak + ".pak")
+		zip_reader.close()
+	var bytes = zip_reader.read_file(filename)
+	zip_reader.close()
+	if bytes.size() == 0:
+		report_errors(ERR_FILE_NOT_FOUND, filename)
+	
+	if filename.ends_with(".dat"):
+		var magic = bytes[0]+bytes[1]+bytes[2]+bytes[3]
+		if magic == 0x25 + 0x7C + 0x0A + 0x42: #XOR'ed DDS file
+			unXOR(bytes)
+			magic = bytes[0]+bytes[1]+bytes[2]+bytes[3]
+
+		if magic == 0x44 + 0x44 + 0x53 + 0x20: #DDS file
+			var header = bytes.slice(0, 0x80)
+			bytes = bytes.slice(0x80)
+			var height = header[0xc] + (header[0xd] * 256)
+			var width = header[0x10] + (header[0x11] * 256)
+			var format = header[0x54]+header[0x55]+header[0x56]+header[0x57]
+			if format == 0:
+				fix_BGRA(bytes)
+				var img = Image.create_from_data(width, height, false, Image.FORMAT_RGBA8, bytes)
+				return ImageTexture.create_from_image(img)
+			elif format == 0x44 + 0x58 + 0x54 + 0x35:
+				var img = Image.create_from_data(width, height, false, Image.FORMAT_DXT5, bytes)
+				return ImageTexture.create_from_image(img)
+			else:
+				report_errors(ERR_FILE_UNRECOGNIZED, filename)
+				return
+		else:
+			report_errors(ERR_FILE_UNRECOGNIZED, filename)
+			return
+	elif filename.ends_with(".ogg"):
+		var magic = bytes[0]+bytes[1]+bytes[2]+bytes[3]
+
+		if magic == 0x4F + 0x67 + 0x67 + 0x53:
+			var stream = AudioStreamOggVorbis.load_from_buffer(bytes)
+			stream.loop = true
+			stream.loop_offset = get_loop_off(filename)
+			return stream
+		else:
+			report_errors(ERR_FILE_UNRECOGNIZED, filename)
+	elif filename.ends_with(".fld"):
+		return bytes
+
+
+static func fix_BGRA(bytes: PackedByteArray):
+	for i in range(0, bytes.size(), 4):
+		var tmp = bytes[i]
+		bytes[i] = bytes[i+2]
+		bytes[i+2] = tmp
+
+static func unXOR(bytes: PackedByteArray):
+	for i in range(bytes.size()):
+		bytes[i] ^= key[i % key.size()]
+
+
+static func get_loop_off(filename: String):
+	match filename:
+		"bgm/0.ogg":
+			return 1.72
+		"bgm/1.ogg":
+			return 2
+
+
+static func report_errors(err: int, filepath):
+	# See: https://docs.godotengine.org/en/latest/classes/class_@globalscope.html#enum-globalscope-error
+	var result_hash = {
+		ERR_FILE_NOT_FOUND: "File: not found",
+		ERR_FILE_BAD_DRIVE: "File: Bad drive error",
+		ERR_FILE_BAD_PATH: "File: Bad path error.",
+		ERR_FILE_NO_PERMISSION: "File: No permission error.",
+		ERR_FILE_ALREADY_IN_USE: "File: Already in use error.",
+		ERR_FILE_CANT_OPEN: "File: Can't open error.",
+		ERR_FILE_CANT_WRITE: "File: Can't write error.",
+		ERR_FILE_CANT_READ: "File: Can't read error.",
+		ERR_FILE_UNRECOGNIZED: "File: Unrecognized error.",
+		ERR_FILE_CORRUPT: "File: Corrupt error.",
+		ERR_FILE_MISSING_DEPENDENCIES: "File: Missing dependencies error.",
+		ERR_FILE_EOF: "File: End of file (EOF) error."
+	}
+	if err in result_hash:
+		print("Error: ", result_hash[err], " ", filepath)
+	else:
+		print("Unknown error with file ", filepath, " error code: ", err)
+