sm64pc/tools/mario_anims_converter.py
2019-12-01 21:52:53 -05:00

159 lines
6.5 KiB
Python
Executable File

#!/usr/bin/env python3
import re
import os
import traceback
import sys
num_headers = 0
items = []
len_mapping = {}
order_mapping = {}
line_number_mapping = {}
def raise_error(filename, lineindex, msg):
raise SyntaxError("Error in " + filename + ":" + str(line_number_mapping[lineindex] + 1) + ": " + msg)
def parse_struct(filename, lines, lineindex, name):
global items, order_mapping
lineindex += 1
if lineindex + 9 >= len(lines):
raise_error(filename, lineindex, "struct Animation must be 11 lines")
v1 = int(lines[lineindex + 0].rstrip(","), 0)
v2 = int(lines[lineindex + 1].rstrip(","), 0)
v3 = int(lines[lineindex + 2].rstrip(","), 0)
v4 = int(lines[lineindex + 3].rstrip(","), 0)
v5 = int(lines[lineindex + 4].rstrip(","), 0)
values = lines[lineindex + 6].rstrip(",")
indices = lines[lineindex + 7].rstrip(",")
items.append(("header", name, (v1, v2, v3, v4, v5, values, indices)))
if lines[lineindex + 9] != "};":
raise_error(filename, lineindex + 9, "Expected \"};\" but got " + lines[lineindex + 9])
order_mapping[name] = len(items)
lineindex += 10
return lineindex
def parse_array(filename, lines, lineindex, name, is_indices):
global items, len_mapping, order_mapping
lineindex += 1
values = []
while lineindex < len(lines) and lines[lineindex] != "};":
line = lines[lineindex].rstrip(",")
if line:
values.extend(line.split(","))
lineindex += 1
if lineindex >= len(lines):
raise_error(filename, lineindex, "Expected \"};\" but reached end of file")
items.append(("array", name, (is_indices, values)))
len_mapping[name] = len(values)
order_mapping[name] = len(items)
lineindex += 1
return lineindex
def parse_file(filename, lines):
global num_headers
lineindex = 0
while lineindex < len(lines):
line = lines[lineindex]
for prefix in ["static ", "const "]:
if line.startswith(prefix):
line = line[len(prefix):]
lines[lineindex] = line
is_struct = line.startswith("struct Animation ") and line.endswith("[] = {")
is_indices = line.startswith("u16 ") and line.endswith("[] = {")
is_values = line.startswith("s16 ") and line.endswith("[] = {")
if not is_struct and not is_indices and not is_values:
raise_error(filename, lineindex, "\"" + line + "\" does not follow the pattern \"static const struct Animation anim_x[] = {\", \"static const u16 anim_x_indices[] = {\" or \"static const s16 anim_x_values[] = {\"")
if is_struct:
name = lines[lineindex][len("struct Animation "):-6]
lineindex = parse_struct(filename, lines, lineindex, name)
num_headers += 1
else:
name = lines[lineindex][len("s16 "):-6]
lineindex = parse_array(filename, lines, lineindex, name, is_indices)
try:
files = os.listdir("assets/anims")
files.sort()
for filename in files:
if filename.endswith(".inc.c"):
lines = []
with open("assets/anims/" + filename) as f:
for i, line in enumerate(f):
line = re.sub(r"/\*.*?\*/", "", line)
if "/*" in line:
line_number_mapping[-1] = i
raise_error(filename, -1, "Multiline comments are not supported")
line = line.split("//", 1)[0].strip()
if line:
line_number_mapping[len(lines)] = i
lines.append(line)
if lines:
parse_file(filename, lines)
structdef = ["u32 numEntries;", "const struct Animation *addrPlaceholder;", "struct OffsetSizePair entries[" + str(num_headers) + "];"]
structobj = [str(num_headers) + ",", "NULL,","{"]
for item in items:
type, name, obj = item
if type == "header":
v1, v2, v3, v4, v5, values, indices = obj
if order_mapping[indices] < order_mapping[name]:
raise SyntaxError("Error: Animation struct must be written before indices array for " + name)
if order_mapping[values] < order_mapping[indices]:
raise SyntaxError("Error: values array must be written after indices array for " + name)
values_num_values = len_mapping[values]
offset_to_struct = "offsetof(struct MarioAnimsObj, " + name + ")"
offset_to_end = "offsetof(struct MarioAnimsObj, " + values + ") + sizeof(gMarioAnims." + values + ")"
structobj.append("{" + offset_to_struct + ", " + offset_to_end + " - " + offset_to_struct + "},")
structobj.append("},")
for item in items:
type, name, obj = item
if type == "header":
v1, v2, v3, v4, v5, values, indices = obj
indices_len = len_mapping[indices] // 6 - 1
values_num_values = len_mapping[values]
offset_to_struct = "offsetof(struct MarioAnimsObj, " + name + ")"
offset_to_end = "offsetof(struct MarioAnimsObj, " + values + ") + sizeof(gMarioAnims." + values + ")"
structdef.append("struct Animation " + name + ";")
structobj.append("{" + ", ".join([
str(v1),
str(v2),
str(v3),
str(v4),
str(v5),
str(indices_len),
"(const s16 *)(offsetof(struct MarioAnimsObj, " + values + ") - " + offset_to_struct + ")",
"(const u16 *)(offsetof(struct MarioAnimsObj, " + indices + ") - " + offset_to_struct + ")",
offset_to_end + " - " + offset_to_struct
]) + "},")
else:
is_indices, arr = obj
type = "u16" if is_indices else "s16"
structdef.append("{} {}[{}];".format(type, name, len(arr)))
structobj.append("{" + ",".join(arr) + "},")
print("#include \"types.h\"")
print("#include <stddef.h>")
print("")
print("const struct MarioAnimsObj {")
for s in structdef:
print(s)
print("} gMarioAnims = {")
for s in structobj:
print(s)
print("};")
except Exception as e:
note = "NOTE! The mario animation C files are not processed by a normal C compiler, but by the script in tools/mario_anims_converter.py. The format is much more strict than normal C, so please follow the syntax of existing files.\n"
if e is SyntaxError:
e.msg = note + e.msg
else:
print(note, file=sys.stderr)
traceback.print_exc()
sys.exit(1)