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https://gitlab.com/xCrystal/pokecrystal-board.git
synced 2024-11-16 11:27:33 -08:00
initial work on text parsing
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Bryan Bishop
parent
873b07dcf9
commit
25a5a9cef4
@ -342,6 +342,10 @@ def rom_until(offset, byte, strings=True):
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global rom
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return rom_interval(offset, rom.find(chr(byte), offset) - offset, strings=strings)
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def how_many_until(byte, starting):
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index = rom.find(byte, starting)
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return index - starting
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def load_map_group_offsets():
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"""reads the map group table for the list of pointers"""
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global map_group_pointer_table, map_group_count, map_group_offsets
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@ -412,14 +416,243 @@ def command_debug_information(command_byte=None, map_group=None, map_id=None, ad
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#info1 += " long_info: " + long_info
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return info1
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def parse_text_engine_script_at(address, map_group=None, map_id=None):
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def process_00_subcommands(start_address, end_address):
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"""split this text up into multiple lines
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based on subcommands ending each line"""
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lines = {}
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subsection = rom[start_address:end_address]
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line_count = 0
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current_line = []
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for pbyte in subsection:
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byte = ord(pbyte)
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current_line.append(byte)
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if byte == 0x4f or byte == 0x51 or byte == 0x55:
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lines[line_count] = current_line
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current_line = []
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line_count += 1
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#don't forget the last line
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lines[line_count] = current_line
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line_count += 1
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return lines
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def parse_text_from_bytes(bytes):
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"""assembles a string based on bytes looked up in the chars table"""
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line = ""
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for byte in bytes:
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if type(byte) != int:
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byte = ord(byte)
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if byte in chars.keys():
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line += chars[byte]
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else:
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print "byte not known: " + hex(byte)
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return line
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def parse_text_at(address, count=10):
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"""returns a list of bytes from an address
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see parse_text_at2 for pretty printing"""
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return parse_text_from_bytes(rom_interval(address, count, strings=False))
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def parse_text_at2(address, count=10):
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"""returns a string of text from an address"""
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output = ""
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commands = process_00_subcommands(address, address+count)
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for (line_id, line) in commands.items():
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output += parse_text_from_bytes(line)
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output += "\n"
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return output
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def parse_text_engine_script_at(address, map_group=None, map_id=None, debug=True):
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return {}
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def new_parse_text_engine_script_at(address, map_group=None, map_id=None, debug=True):
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"""parses a text-engine script ("in-text scripts")
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http://hax.iimarck.us/files/scriptingcodes_eng.htm#InText
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This is presently very broken.
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see parse_text_at2, parse_text_at, and process_00_subcommands
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"""
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global rom
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if rom == None:
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load_rom()
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commands = {}
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total_text_commands = 0
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command_counter = 0
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original_address = address
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offset = address
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end = False
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while not end:
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command = {}
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command_byte = ord(rom[address])
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if command_byte == 0:
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#read until $57, $50 or $58
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jump57 = how_many_until(chr(0x57), offset)
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jump50 = how_many_until(chr(0x50), offset)
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jump58 = how_many_until(chr(0x58), offset)
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#whichever command comes first
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jump = min([jump57, jump50, jump58])
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end_address = offset + jump - 1 #we want the address before $57
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command = {"type": command_byte,
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"start_address": offset,
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"end_address": end_address,
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"size": jump,
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"lines": process_00_subcommands(offset+1, end_address),
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}
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offset += jump
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elif command_byte == 0x17:
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#TX_FAR [pointer][bank]
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pointer_byte1 = ord(rom[offset+1])
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pointer_byte2 = ord(rom[offset+2])
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pointer_bank = ord(rom[offset+3])
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pointer = (pointer_byte1 + (pointer_byte2 << 8))
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pointer = extract_maps.calculate_pointer(pointer, pointer_bank)
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command = {"type": command_byte,
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"start_address": offset,
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"end_address": offset + 3, #last byte belonging to this command
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"pointer": pointer, #parameter
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}
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offset += 3 + 1
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elif command_byte == 0x50 or command_byte == 0x57 or command_byte == 0x58: #end text
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command = {"type": command_byte,
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"start_address": offset,
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"end_address": offset,
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}
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#this byte simply indicates to end the script
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end = True
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#this byte simply indicates to end the script
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if command_byte == 0x50 and ord(rom[offset+1]) == 0x50: #$50$50 means end completely
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end = True
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commands[command_counter+1] = command
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#also save the next byte, before we quit
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commands[command_counter+1]["start_address"] += 1
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commands[command_counter+1]["end_address"] += 1
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add_command_byte_to_totals(command_byte)
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elif command_byte == 0x50: #only end if we started with $0
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if len(commands.keys()) > 0:
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if commands[0]["type"] == 0x0: end = True
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elif command_byte == 0x57 or command_byte == 0x58: #end completely
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end = True
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offset += 1 #go past this 0x50
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elif command_byte == 0x1:
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#01 = text from RAM. [01][2-byte pointer]
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size = 3 #total size, including the command byte
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pointer_byte1 = ord(rom[offset+1])
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pointer_byte2 = ord(rom[offset+2])
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command = {"type": command_byte,
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"start_address": offset+1,
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"end_address": offset+2, #last byte belonging to this command
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"pointer": [pointer_byte1, pointer_byte2], #RAM pointer
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}
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#view near these bytes
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#subsection = rom[offset:offset+size+1] #peak ahead
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#for x in subsection:
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# print hex(ord(x))
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#print "--"
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offset += 2 + 1 #go to the next byte
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#use this to look at the surrounding bytes
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if debug:
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print "next command is: " + hex(ord(rom[offset])) + " ... we are at command number: " + str(command_counter) + " near " + hex(offset) + " on map_id=" + str(map_id)
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elif command_byte == 0x7:
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#07 = shift texts 1 row above (2nd line becomes 1st line); address for next text = 2nd line. [07]
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size = 1
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command = {"type": command_byte,
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"start_address": offset,
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"end_address": offset,
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}
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offset += 1
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elif command_byte == 0x3:
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#03 = set new address in RAM for text. [03][2-byte RAM address]
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size = 3
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command = {"type": command_byte, "start_address": offset, "end_address": offset+2}
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offset += size
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elif command_byte == 0x4: #draw box
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#04 = draw box. [04][2-Byte pointer][height Y][width X]
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size = 5 #including the command
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command = {
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"type": command_byte,
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"start_address": offset,
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"end_address": offset + size,
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"pointer_bytes": [ord(rom[offset+1]), ord(rom[offset+2])],
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"y": ord(rom[offset+3]),
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"x": ord(rom[offset+4]),
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}
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offset += size + 1
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elif command_byte == 0x5:
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#05 = write text starting at 2nd line of text-box. [05][text][ending command]
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#read until $57, $50 or $58
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jump57 = how_many_until(chr(0x57), offset)
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jump50 = how_many_until(chr(0x50), offset)
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jump58 = how_many_until(chr(0x58), offset)
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#whichever command comes first
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jump = min([jump57, jump50, jump58])
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end_address = offset + jump - 1 #we want the address before $57
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command = {"type": command_byte,
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"start_address": offset,
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"end_address": end_address,
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"size": jump,
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"lines": process_00_subcommands(offset+1, end_address),
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}
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offset = end_address + 1
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elif command_byte == 0x6:
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#06 = wait for keypress A or B (put blinking arrow in textbox). [06]
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command = {"type": command_byte, "start_address": offset, "end_address": offset}
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offset += 1
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elif command_byte == 0x7:
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#07 = shift texts 1 row above (2nd line becomes 1st line); address for next text = 2nd line. [07]
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command = {"type": command_byte, "start_address": offset, "end_address": offset}
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offset += 1
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elif command_byte == 0x8:
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#08 = asm until whenever
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command = {"type": command_byte, "start_address": offset, "end_address": offset}
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offset += 1
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end = True
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elif command_byte == 0x9:
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#09 = write hex-to-dec number from RAM to textbox [09][2-byte RAM address][byte bbbbcccc]
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# bbbb = how many bytes to read (read number is big-endian)
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# cccc = how many digits display (decimal)
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#(note: max of decimal digits is 7,i.e. max number correctly displayable is 9999999)
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ram_address_byte1 = ord(rom[offset+1])
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ram_address_byte2 = ord(rom[offset+2])
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read_byte = ord(rom[offset+3])
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command = {
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"type": command_byte,
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"address": [ram_address_byte1, ram_address_byte2],
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"read_byte": read_byte, #split this up when we make a macro for this
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}
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offset += 4
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else:
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#if len(commands) > 0:
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# print "Unknown text command " + hex(command_byte) + " at " + hex(offset) + ", script began with " + hex(commands[0]["type"])
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if debug:
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print "Unknown text command at " + hex(offset) + " - command: " + hex(ord(rom[offset])) + " on map_id=" + str(map_id)
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#end at the first unknown command
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end = True
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commands[command_counter] = command
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command_counter += 1
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total_text_commands += len(commands)
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return commands
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def translate_command_byte(crystal=None, gold=None):
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