ddnet/datasrc/datatypes.py

362 lines
10 KiB
Python

GlobalIdCounter = 0
def GetID():
global GlobalIdCounter
GlobalIdCounter += 1
return GlobalIdCounter
def GetUID():
return "x%d"%GetID()
def FixCasing(Str):
NewStr = ""
NextUpperCase = True
for c in Str:
if NextUpperCase:
NextUpperCase = False
NewStr += c.upper()
else:
if c == "_":
NextUpperCase = True
else:
NewStr += c.lower()
return NewStr
def FormatName(typ, name):
if "*" in typ:
return "m_p" + FixCasing(name)
if "[]" in typ:
return "m_a" + FixCasing(name)
return "m_" + FixCasing(name)
class BaseType:
def __init__(self, type_name):
self._type_name = type_name
self._target_name = "INVALID"
self._id = GetID() # this is used to remember what order the members have in structures etc
def Identifyer(self):
return "x"+str(self._id)
def TargetName(self):
return self._target_name
def TypeName(self):
return self._type_name
def ID(self):
return self._id
def EmitDeclaration(self, name):
return ["%s %s;"%(self.TypeName(), FormatName(self.TypeName(), name))]
def EmitPreDefinition(self, target_name):
self._target_name = target_name
return []
def EmitDefinition(self, _name):
return []
class MemberType:
def __init__(self, name, var):
self.name = name
self.var = var
class Struct(BaseType):
def __init__(self, type_name):
BaseType.__init__(self, type_name)
def Members(self):
def sorter(a):
return a.var.ID()
m = []
for name in self.__dict__:
if name[0] == "_":
continue
m += [MemberType(name, self.__dict__[name])]
m.sort(key = sorter)
return m
def EmitTypeDeclaration(self, _name):
lines = []
lines += ["struct " + self.TypeName()]
lines += ["{"]
for member in self.Members():
lines += ["\t"+l for l in member.var.EmitDeclaration(member.name)]
lines += ["};"]
return lines
def EmitPreDefinition(self, target_name):
BaseType.EmitPreDefinition(self, target_name)
lines = []
for member in self.Members():
lines += member.var.EmitPreDefinition(target_name+"."+member.name)
return lines
def EmitDefinition(self, _name):
lines = ["/* %s */ {" % self.TargetName()]
for member in self.Members():
lines += ["\t" + " ".join(member.var.EmitDefinition("")) + ","]
lines += ["}"]
return lines
class Array(BaseType):
def __init__(self, typ):
BaseType.__init__(self, typ.TypeName())
self.type = typ
self.items = []
def Add(self, instance):
if instance.TypeName() != self.type.TypeName():
raise "bah"
self.items += [instance]
def EmitDeclaration(self, name):
return ["int m_Num%s;"%(FixCasing(name)),
"%s *%s;"%(self.TypeName(), FormatName("[]", name))]
def EmitPreDefinition(self, target_name):
BaseType.EmitPreDefinition(self, target_name)
lines = []
i = 0
for item in self.items:
lines += item.EmitPreDefinition("%s[%d]"%(self.Identifyer(), i))
i += 1
if self.items:
lines += ["static %s %s[] = {"%(self.TypeName(), self.Identifyer())]
for item in self.items:
itemlines = item.EmitDefinition("")
lines += ["\t" + " ".join(itemlines).replace("\t", " ") + ","]
lines += ["};"]
else:
lines += ["static %s *%s = 0;"%(self.TypeName(), self.Identifyer())]
return lines
def EmitDefinition(self, _name):
return [str(len(self.items))+","+self.Identifyer()]
# Basic Types
class Int(BaseType):
def __init__(self, value):
BaseType.__init__(self, "int")
self.value = value
def Set(self, value):
self.value = value
def EmitDefinition(self, _name):
return ["%d"%self.value]
#return ["%d /* %s */"%(self.value, self._target_name)]
class Float(BaseType):
def __init__(self, value):
BaseType.__init__(self, "float")
self.value = value
def Set(self, value):
self.value = value
def EmitDefinition(self, _name):
return ["%ff"%self.value]
#return ["%d /* %s */"%(self.value, self._target_name)]
class String(BaseType):
def __init__(self, value):
BaseType.__init__(self, "const char*")
self.value = value
def Set(self, value):
self.value = value
def EmitDefinition(self, _name):
return ['"'+self.value+'"']
class Pointer(BaseType):
def __init__(self, typ, target):
BaseType.__init__(self, "%s*"%typ().TypeName())
self.target = target
def Set(self, target):
self.target = target
def EmitDefinition(self, _name):
return ["&"+self.target.TargetName()]
class TextureHandle(BaseType):
def __init__(self):
BaseType.__init__(self, "IGraphics::CTextureHandle")
def EmitDefinition(self, _name):
return ["IGraphics::CTextureHandle()"]
# helper functions
def EmitTypeDeclaration(root):
for l in root().EmitTypeDeclaration(""):
print(l)
def EmitDefinition(root, name):
for l in root.EmitPreDefinition(name):
print(l)
print("%s %s = " % (root.TypeName(), name))
for l in root.EmitDefinition(name):
print(l)
print(";")
# Network stuff after this
class Object:
pass
class Enum:
def __init__(self, name, values):
self.name = name
self.values = values
class Flags:
def __init__(self, name, values):
self.name = name
self.values = values
class NetObject:
def __init__(self, name, variables, ex=None, validate_size=True):
l = name.split(":")
self.name = l[0]
self.base = ""
if len(l) > 1:
self.base = l[1]
self.base_struct_name = "CNetObj_%s" % self.base
self.struct_name = "CNetObj_%s" % self.name
self.enum_name = "NETOBJTYPE_%s" % self.name.upper()
self.variables = variables
self.ex = ex
self.validate_size = validate_size
def emit_declaration(self):
if self.base:
lines = ["struct %s : public %s"%(self.struct_name,self.base_struct_name), "{"]
else:
lines = ["struct %s"%self.struct_name, "{"]
for v in self.variables:
lines += ["\t"+line for line in v.emit_declaration()]
lines += ["};"]
return lines
def emit_validate(self, base_item):
lines = ["case %s:" % self.enum_name]
lines += ["{"]
if self.validate_size:
lines += ["\t%s *pObj = (%s *)pData;"%(self.struct_name, self.struct_name)]
lines += ["\tif((int)sizeof(*pObj) > Size) return -1;"]
prev_len = len(lines)
variables = self.variables
if base_item:
variables += base_item.variables
for v in variables:
lines += ["\t"+line for line in v.emit_validate()]
if not self.validate_size and prev_len != len(lines):
raise ValueError("Can't use members that need validation in a struct whose size isn't validated")
lines += ["\treturn 0;"]
lines += ["}"]
return lines
class NetEvent(NetObject):
def __init__(self, name, variables, ex=None):
NetObject.__init__(self, name, variables, ex=ex)
self.base_struct_name = "CNetEvent_%s" % self.base
self.struct_name = "CNetEvent_%s" % self.name
self.enum_name = "NETEVENTTYPE_%s" % self.name.upper()
class NetMessage(NetObject):
def __init__(self, name, variables, ex=None, teehistorian=True):
NetObject.__init__(self, name, variables, ex=ex)
self.base_struct_name = "CNetMsg_%s" % self.base
self.struct_name = "CNetMsg_%s" % self.name
self.enum_name = "NETMSGTYPE_%s" % self.name.upper()
self.teehistorian = teehistorian
def emit_unpack(self):
lines = []
lines += ["case %s:" % self.enum_name]
lines += ["{"]
lines += ["\t%s *pMsg = (%s *)m_aMsgData;" % (self.struct_name, self.struct_name)]
lines += ["\t(void)pMsg;"]
for v in self.variables:
lines += ["\t"+line for line in v.emit_unpack()]
for v in self.variables:
lines += ["\t"+line for line in v.emit_unpack_check()]
lines += ["} break;"]
return lines
def emit_declaration(self):
extra = []
extra += ["\tint MsgID() const { return %s; }" % self.enum_name]
extra += ["\t"]
extra += ["\tbool Pack(CMsgPacker *pPacker)"]
extra += ["\t{"]
#extra += ["\t\tmsg_pack_start(%s, flags);"%self.enum_name]
for v in self.variables:
extra += ["\t\t"+line for line in v.emit_pack()]
extra += ["\t\treturn pPacker->Error() != 0;"]
extra += ["\t}"]
lines = NetObject.emit_declaration(self)
lines = lines[:-1] + extra + lines[-1:]
return lines
class NetObjectEx(NetObject):
def __init__(self, name, ex, variables, validate_size=True):
NetObject.__init__(self, name, variables, ex=ex, validate_size=validate_size)
class NetEventEx(NetEvent):
def __init__(self, name, ex, variables):
NetEvent.__init__(self, name, variables, ex=ex)
class NetMessageEx(NetMessage):
def __init__(self, name, ex, variables, teehistorian=True):
NetMessage.__init__(self, name, variables, ex=ex)
class NetVariable:
def __init__(self, name):
self.name = name
def emit_declaration(self):
return []
def emit_validate(self):
return []
def emit_pack(self):
return []
def emit_unpack(self):
return []
def emit_unpack_check(self):
return []
class NetString(NetVariable):
def emit_declaration(self):
return ["const char *%s;"%self.name]
def emit_unpack(self):
return ["pMsg->%s = pUnpacker->GetString();" % self.name]
def emit_pack(self):
return ["pPacker->AddString(%s, -1);" % self.name]
class NetStringHalfStrict(NetVariable):
def emit_declaration(self):
return ["const char *%s;"%self.name]
def emit_unpack(self):
return ["pMsg->%s = pUnpacker->GetString(CUnpacker::SANITIZE_CC);" % self.name]
def emit_pack(self):
return ["pPacker->AddString(%s, -1);" % self.name]
class NetStringStrict(NetVariable):
def emit_declaration(self):
return ["const char *%s;"%self.name]
def emit_unpack(self):
return ["pMsg->%s = pUnpacker->GetString(CUnpacker::SANITIZE_CC|CUnpacker::SKIP_START_WHITESPACES);" % self.name]
def emit_pack(self):
return ["pPacker->AddString(%s, -1);" % self.name]
class NetIntAny(NetVariable):
def emit_declaration(self):
return ["int %s;"%self.name]
def emit_unpack(self):
return ["pMsg->%s = pUnpacker->GetInt();" % self.name]
def emit_pack(self):
return ["pPacker->AddInt(%s);" % self.name]
class NetIntRange(NetIntAny):
def __init__(self, name, min_val, max_val):
NetIntAny.__init__(self,name)
self.min = str(min_val)
self.max = str(max_val)
def emit_validate(self):
return ["pObj->%s = ClampInt(\"%s\", pObj->%s, %s, %s);"%(self.name, self.name, self.name, self.min, self.max)]
def emit_unpack_check(self):
return ["if(pMsg->%s < %s || pMsg->%s > %s) { m_pMsgFailedOn = \"%s\"; break; }" % (self.name, self.min, self.name, self.max, self.name)]
class NetBool(NetIntRange):
def __init__(self, name):
NetIntRange.__init__(self,name,0,1)
class NetTick(NetIntAny):
def __init__(self, name):
NetIntAny.__init__(self,name)