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Imrove lua engine 

* Allow bound C++ functions to return multiples values to lua with tuples
This commit is contained in:
Eduardo Bart 2012-07-05 09:38:48 -03:00
parent ea2967e1ad
commit 6bce0bd680
12 changed files with 164 additions and 84 deletions
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2
modules/game_interface/gameinterface.lua
View File

@ -371,7 +371,7 @@ function GameInterface.processMouseAction(menuPosition, mouseButton, autoWalkPos
end
if autoWalkPos and keyboardModifiers == KeyboardNoModifier and mouseButton == MouseLeftButton then
local dirs = g_map.findPath(g_game.getLocalPlayer():getPosition(), autoWalkPos, 255)
local dirs = g_map.findPath(g_game.getLocalPlayer():getPosition(), autoWalkPos, 127)
if #dirs == 0 then
TextMessage.displayStatus(tr('There is no way.'))
return true

2
modules/game_minimap/minimap.lua
View File

@ -11,7 +11,7 @@ minimapFirstLoad = true
function onMinimapMouseRelease(self, mousePosition, mouseButton)
local tile = self:getTile(mousePosition)
if tile and mouseButton == MouseLeftButton and self:isPressed() then
local dirs = g_map.findPath(g_game.getLocalPlayer():getPosition(), tile:getPosition(), 255)
local dirs = g_map.findPath(g_game.getLocalPlayer():getPosition(), tile:getPosition(), 127)
if #dirs == 0 then
TextMessage.displayStatus(tr('There is no way.'))
return true

4
src/framework/luascript/luabinder.h
View File

@ -63,8 +63,8 @@ namespace luabinder
typename std::enable_if<!std::is_void<Ret>::value, int>::type
call_fun_and_push_result(const F& f, LuaInterface* lua, const Args&... args) {
Ret ret = f(args...);
lua->polymorphicPush(ret);
return 1;
int numRets = lua->polymorphicPush(ret);
return numRets;
}
/// C++ void function caller

14
src/framework/luascript/luainterface.h
View File

@ -316,8 +316,8 @@ public:
/// Pushes any type onto the stack
template<typename T, typename... Args>
void polymorphicPush(T v, Args... args);
void polymorphicPush() { }
int polymorphicPush(T v, Args... args);
int polymorphicPush() { return 0; }
/// Casts a value from stack to any type
/// @exception LuaBadValueCastException thrown if the cast fails
@ -344,9 +344,9 @@ extern LuaInterface g_lua;
#include "luavaluecasts.h"
template<typename T, typename... Args>
void LuaInterface::polymorphicPush(T v, Args... args) {
push_luavalue(v);
polymorphicPush(args...);
int LuaInterface::polymorphicPush(T v, Args... args) {
int r = push_luavalue(v);
return r + polymorphicPush(args...);
}
// next templates must be defined after above includes
@ -423,8 +423,8 @@ template<typename... T>
int LuaInterface::callGlobalField(const std::string& global, const std::string& field, const T&... args) {
g_lua.getGlobalField(global, field);
if(!g_lua.isNil()) {
g_lua.polymorphicPush(args...);
return g_lua.signalCall(sizeof...(args));
int numArgs = g_lua.polymorphicPush(args...);
return g_lua.signalCall(numArgs);
} else
g_lua.pop(1);
return 0;

4
src/framework/luascript/luaobject.h
View File

@ -101,8 +101,8 @@ int LuaObject::luaCallField(const std::string& field, const T&... args) {
if(!g_lua.isNil()) {
// the first argument is always this object (self)
g_lua.insert(-2);
g_lua.polymorphicPush(args...);
return g_lua.signalCall(1 + sizeof...(args));
int numArgs = g_lua.polymorphicPush(args...);
return g_lua.signalCall(1 + numArgs);
} else {
g_lua.pop(2);
}

33
src/framework/luascript/luavaluecasts.cpp
View File

@ -25,9 +25,10 @@
#include <framework/otml/otmlnode.h>
// bool
void push_luavalue(bool b)
int push_luavalue(bool b)
{
g_lua.pushBoolean(b);
return 1;
}
bool luavalue_cast(int index, bool& b)
@ -37,9 +38,10 @@ bool luavalue_cast(int index, bool& b)
}
// int
void push_luavalue(int i)
int push_luavalue(int i)
{
g_lua.pushInteger(i);
return 1;
}
bool luavalue_cast(int index, int& i)
@ -51,9 +53,10 @@ bool luavalue_cast(int index, int& i)
}
// double
void push_luavalue(double d)
int push_luavalue(double d)
{
g_lua.pushNumber(d);
return 1;
}
bool luavalue_cast(int index, double& d)
@ -65,14 +68,16 @@ bool luavalue_cast(int index, double& d)
}
// string
void push_luavalue(const char* cstr)
int push_luavalue(const char* cstr)
{
g_lua.pushCString(cstr);
return 1;
}
void push_luavalue(const std::string& str)
int push_luavalue(const std::string& str)
{
g_lua.pushString(str);
return 1;
}
bool luavalue_cast(int index, std::string& str)
@ -82,13 +87,14 @@ bool luavalue_cast(int index, std::string& str)
}
// lua cpp function
void push_luavalue(const LuaCppFunction& func)
int push_luavalue(const LuaCppFunction& func)
{
g_lua.pushCppFunction(func);
return 1;
}
// color
void push_luavalue(const Color& color)
int push_luavalue(const Color& color)
{
g_lua.newTable();
g_lua.pushInteger(color.r());
@ -99,6 +105,7 @@ void push_luavalue(const Color& color)
g_lua.setField("b");
g_lua.pushInteger(color.a());
g_lua.setField("a");
return 1;
}
bool luavalue_cast(int index, Color& color)
@ -123,7 +130,7 @@ bool luavalue_cast(int index, Color& color)
}
// rect
void push_luavalue(const Rect& rect)
int push_luavalue(const Rect& rect)
{
g_lua.newTable();
g_lua.pushInteger(rect.x());
@ -134,6 +141,7 @@ void push_luavalue(const Rect& rect)
g_lua.setField("width");
g_lua.pushInteger(rect.height());
g_lua.setField("height");
return 1;
}
bool luavalue_cast(int index, Rect& rect)
@ -158,13 +166,14 @@ bool luavalue_cast(int index, Rect& rect)
}
// point
void push_luavalue(const Point& point)
int push_luavalue(const Point& point)
{
g_lua.newTable();
g_lua.pushInteger(point.x);
g_lua.setField("x");
g_lua.pushInteger(point.y);
g_lua.setField("y");
return 1;
}
bool luavalue_cast(int index, Point& point)
@ -185,13 +194,14 @@ bool luavalue_cast(int index, Point& point)
}
// size
void push_luavalue(const Size& size)
int push_luavalue(const Size& size)
{
g_lua.newTable();
g_lua.pushInteger(size.width());
g_lua.setField("width");
g_lua.pushInteger(size.height());
g_lua.setField("height");
return 1;
}
bool luavalue_cast(int index, Size& size)
@ -245,7 +255,7 @@ void push_otml_subnode_luavalue(const OTMLNodePtr& node)
g_lua.pushNil();
}
void push_luavalue(const OTMLNodePtr& node)
int push_luavalue(const OTMLNodePtr& node)
{
if(node) {
g_lua.newTable();
@ -259,6 +269,7 @@ void push_luavalue(const OTMLNodePtr& node)
}
} else
g_lua.pushNil();
return 1;
}
bool luavalue_cast(int index, OTMLNodePtr& node)

129
src/framework/luascript/luavaluecasts.h
View File

@ -28,70 +28,73 @@
#include "declarations.h"
#include <framework/otml/declarations.h>
template<typename T>
int push_internal_luavalue(T v);
// bool
void push_luavalue(bool b);
int push_luavalue(bool b);
bool luavalue_cast(int index, bool& b);
// int
void push_luavalue(int i);
int push_luavalue(int i);
bool luavalue_cast(int index, int& i);
// double
void push_luavalue(double d);
int push_luavalue(double d);
bool luavalue_cast(int index, double& d);
// float
inline void push_luavalue(float f) { push_luavalue((double)f); }
inline int push_luavalue(float f) { push_luavalue((double)f); return 1; }
inline bool luavalue_cast(int index, float& f) { double d; bool r = luavalue_cast(index, d); f = d; return r; }
// int8
inline void push_luavalue(int8 v) { push_luavalue((int)v); }
inline int push_luavalue(int8 v) { push_luavalue((int)v); return 1; }
inline bool luavalue_cast(int index, int8& v) { int i; bool r = luavalue_cast(index, i); v = i; return r; }
// uint8
inline void push_luavalue(uint8 v) { push_luavalue((int)v); }
inline int push_luavalue(uint8 v) { push_luavalue((int)v); return 1; }
inline bool luavalue_cast(int index, uint8& v){ int i; bool r = luavalue_cast(index, i); v = i; return r; }
// int16
inline void push_luavalue(int16 v) { push_luavalue((int)v); }
inline int push_luavalue(int16 v) { push_luavalue((int)v); return 1; }
inline bool luavalue_cast(int index, int16& v){ int i; bool r = luavalue_cast(index, i); v = i; return r; }
// uint16
inline void push_luavalue(uint16 v) { push_luavalue((int)v); }
inline int push_luavalue(uint16 v) { push_luavalue((int)v); return 1; }
inline bool luavalue_cast(int index, uint16& v){ int i; bool r = luavalue_cast(index, i); v = i; return r; }
// uint32
inline void push_luavalue(uint32 v) { push_luavalue((double)v); }
inline int push_luavalue(uint32 v) { push_luavalue((double)v); return 1; }
inline bool luavalue_cast(int index, uint32& v) { double d; bool r = luavalue_cast(index, d); v = d; return r; }
// int64
inline void push_luavalue(int64 v) { push_luavalue((double)v); }
inline int push_luavalue(int64 v) { push_luavalue((double)v); return 1; }
inline bool luavalue_cast(int index, int64& v) { double d; bool r = luavalue_cast(index, d); v = d; return r; }
// uint64
inline void push_luavalue(uint64 v) { push_luavalue((double)v); }
inline int push_luavalue(uint64 v) { push_luavalue((double)v); return 1; }
inline bool luavalue_cast(int index, uint64& v) { double d; bool r = luavalue_cast(index, d); v = d; return r; }
// string
void push_luavalue(const char* cstr);
void push_luavalue(const std::string& str);
int push_luavalue(const char* cstr);
int push_luavalue(const std::string& str);
bool luavalue_cast(int index, std::string& str);
// lua cpp function
void push_luavalue(const LuaCppFunction& func);
int push_luavalue(const LuaCppFunction& func);
// color
void push_luavalue(const Color& color);
int push_luavalue(const Color& color);
bool luavalue_cast(int index, Color& color);
// rect
void push_luavalue(const Rect& rect);
int push_luavalue(const Rect& rect);
bool luavalue_cast(int index, Rect& rect);
// point
void push_luavalue(const Point& point);
int push_luavalue(const Point& point);
bool luavalue_cast(int index, Point& point);
// size
void push_luavalue(const Size& size);
int push_luavalue(const Size& size);
bool luavalue_cast(int index, Size& size);
// otml nodes
void push_luavalue(const OTMLNodePtr& node);
int push_luavalue(const OTMLNodePtr& node);
bool luavalue_cast(int index, OTMLNodePtr& node);
// enum
@ -101,7 +104,7 @@ luavalue_cast(int index, T& myenum);
// LuaObject pointers
template<class T>
typename std::enable_if<std::is_base_of<LuaObject, typename T::element_type>::value, void>::type
typename std::enable_if<std::is_base_of<LuaObject, typename T::element_type>::value, int>::type
push_luavalue(const T& obj);
bool luavalue_cast(int index, LuaObjectPtr& obj);
@ -112,7 +115,7 @@ luavalue_cast(int index, std::shared_ptr<T>& ptr);
// std::function
template<typename Ret, typename... Args>
void push_luavalue(const std::function<Ret(Args...)>& func);
int push_luavalue(const std::function<Ret(Args...)>& func);
template<typename... Args>
bool luavalue_cast(int index, std::function<void(Args...)>& func);
@ -123,34 +126,43 @@ luavalue_cast(int index, std::function<Ret(Args...)>& func);
// vector
template<typename T>
void push_luavalue(const std::vector<T>& vec);
int push_luavalue(const std::vector<T>& vec);
template<typename T>
bool luavalue_cast(int index, std::vector<T>& vec);
// deque
template<class T>
void push_luavalue(const std::deque<T>& vec);
int push_luavalue(const std::deque<T>& vec);
template<typename T>
bool luavalue_cast(int index, std::deque<T>& vec);
// map
template<class K, class V>
void push_luavalue(const std::map<K, V>& map);
int push_luavalue(const std::map<K, V>& map);
template<class K, class V>
bool luavalue_cast(int index, std::map<K, V>& map);
// tuple
template<typename... Args>
void push_luavalue(const std::tuple<Args...>& tuple);
int push_luavalue(const std::tuple<Args...>& tuple);
template<typename... Args>
int push_internal_luavalue(const std::tuple<Args...>& tuple);
// start definitions
#include "luaexception.h"
#include "luainterface.h"
template<typename T>
int push_internal_luavalue(T v) {
return push_luavalue(v);
}
template<class T>
typename std::enable_if<std::is_enum<T>::value, bool>::type
luavalue_cast(int index, T& myenum) {
@ -158,11 +170,13 @@ luavalue_cast(int index, T& myenum) {
}
template<class T>
typename std::enable_if<std::is_base_of<LuaObject, typename T::element_type>::value, void>::type
typename std::enable_if<std::is_base_of<LuaObject, typename T::element_type>::value, int>::type
push_luavalue(const T& obj) {
if(obj)
return g_lua.pushObject(obj);
return g_lua.pushNil();
g_lua.pushObject(obj);
else
g_lua.pushNil();
return 1;
}
template<class T>
@ -176,12 +190,13 @@ luavalue_cast(int index, std::shared_ptr<T>& ptr) {
}
template<typename Ret, typename... Args>
void push_luavalue(const std::function<Ret(Args...)>& func) {
int push_luavalue(const std::function<Ret(Args...)>& func) {
if(func) {
LuaCppFunction f = luabinder::bind_fun(func);
g_lua.pushCppFunction(f);
} else
g_lua.pushNil();
return 1;
}
template<typename... Args>
@ -197,8 +212,8 @@ bool luavalue_cast(int index, std::function<void(Args...)>& func) {
g_lua.getWeakRef(funcWeakRef);
try {
if(g_lua.isFunction()) {
g_lua.polymorphicPush(args...);
int rets = g_lua.safeCall(sizeof...(Args));
int numArgs = g_lua.polymorphicPush(args...);
int rets = g_lua.safeCall(numArgs);
g_lua.pop(rets);
} else {
throw LuaException("attempt to call an expired lua function from C++,"
@ -230,8 +245,8 @@ luavalue_cast(int index, std::function<Ret(Args...)>& func) {
try {
g_lua.getWeakRef(funcWeakRef);
if(g_lua.isFunction()) {
g_lua.polymorphicPush(args...);
if(g_lua.safeCall(sizeof...(Args)) != 1)
int numArgs = g_lua.polymorphicPush(args...);
if(g_lua.safeCall(numArgs) != 1)
throw LuaException("a function from lua didn't retrieve the expected number of results", 0);
return g_lua.polymorphicPop<Ret>();
} else {
@ -253,14 +268,15 @@ luavalue_cast(int index, std::function<Ret(Args...)>& func) {
template<typename T>
void push_luavalue(const std::vector<T>& vec) {
int push_luavalue(const std::vector<T>& vec) {
g_lua.newTable();
int i = 1;
for(const T& v : vec) {
push_luavalue(v);
push_internal_luavalue(v);
g_lua.rawSeti(i);
i++;
}
return 1;
}
template<typename T>
@ -280,14 +296,15 @@ bool luavalue_cast(int index, std::vector<T>& vec)
}
template<typename T>
void push_luavalue(const std::deque<T>& vec) {
int push_luavalue(const std::deque<T>& vec) {
g_lua.newTable();
int i = 1;
for(const T& v : vec) {
push_luavalue(v);
push_internal_luavalue(v);
g_lua.rawSeti(i);
i++;
}
return 1;
}
template<typename T>
@ -307,14 +324,15 @@ bool luavalue_cast(int index, std::deque<T>& vec)
}
template<class K, class V>
void push_luavalue(const std::map<K, V>& map)
int push_luavalue(const std::map<K, V>& map)
{
g_lua.newTable();
for(auto& it : map) {
push_luavalue(it.first);
push_luavalue(it.second);
push_internal_luavalue(it.first);
push_internal_luavalue(it.second);
g_lua.rawSet();
}
return 1;
}
template<class K, class V>
@ -334,12 +352,35 @@ bool luavalue_cast(int index, std::map<K, V>& map)
return false;
}
template<int N>
struct push_tuple_internal_luavalue {
template<typename Tuple>
static void call(const Tuple& tuple) {
push_internal_luavalue(std::get<N-1>(tuple));
g_lua.rawSeti(N);
push_tuple_internal_luavalue<N-1>::call(tuple);
}
};
template<>
struct push_tuple_internal_luavalue<0> {
template<typename Tuple>
static void call(const Tuple& tuple) { }
};
template<typename... Args>
int push_internal_luavalue(const std::tuple<Args...>& tuple) {
g_lua.newTable();
push_tuple_internal_luavalue<sizeof...(Args)>::call(tuple);
return 1;
}
template<int N>
struct push_tuple_luavalue {
template<typename Tuple>
static void call(const Tuple& tuple) {
push_luavalue(std::get<N-1>(tuple));
g_lua.rawSeti(N);
push_internal_luavalue(std::get<std::tuple_size<Tuple>::value - N>(tuple));
push_tuple_luavalue<N-1>::call(tuple);
}
};
@ -351,9 +392,9 @@ struct push_tuple_luavalue<0> {
};
template<typename... Args>
void push_luavalue(const std::tuple<Args...>& tuple) {
g_lua.newTable();
int push_luavalue(const std::tuple<Args...>& tuple) {
push_tuple_luavalue<sizeof...(Args)>::call(tuple);
return sizeof...(Args);
}
#endif

8
src/otclient/const.h
View File

@ -311,6 +311,14 @@ namespace Otc
GameMagicEffectU16,
LastGameFeature
};
enum PathFindResult {
PATHFIND_OK = 0,
PATHFIND_SAME_POSITION,
PATHFIND_IMPOSSIBLE,
PATHFIND_TOO_FAR,
PATHFIND_NO_WAY,
};
}
#endif

32
src/otclient/core/map.cpp
View File

@ -758,10 +758,11 @@ int Map::getLastAwareFloor()
return Otc::SEA_FLOOR;
}
std::tuple<std::vector<Otc::Direction>, Otc::PathFindResult> Map::findPath(const Position& startPos, const Position& goalPos, int maxSteps)
{
// pathfinding using A* search algorithm
// as described in http://en.wikipedia.org/wiki/A*_search_algorithm
std::vector<Otc::Direction> Map::findPath(const Position& startPos, const Position& goalPos, int maxSteps)
{
struct Node {
Node(const Position& pos) : cost(0), totalCost(0), steps(0), pos(pos), prev(nullptr), dir(Otc::InvalidDirection), evaluated(false) { }
bool operator<(const Node& other) const { return totalCost < other.totalCost; }
@ -780,10 +781,26 @@ std::vector<Otc::Direction> Map::findPath(const Position& startPos, const Positi
}
};
std::vector<Otc::Direction> dirs;
std::tuple<std::vector<Otc::Direction>, Otc::PathFindResult> ret;
std::vector<Otc::Direction>& dirs = std::get<0>(ret);
Otc::PathFindResult& result = std::get<1>(ret);
if(startPos == goalPos || startPos.z != goalPos.z || startPos.distance(goalPos) > maxSteps)
return dirs;
result = Otc::PATHFIND_OK;
if(startPos == goalPos) {
result = Otc::PATHFIND_SAME_POSITION;
return ret;
}
if(startPos.z != goalPos.z) {
result = Otc::PATHFIND_IMPOSSIBLE;
return ret;
}
if(startPos.distance(goalPos) > maxSteps) {
result = Otc::PATHFIND_TOO_FAR;
return ret;
}
std::unordered_map<Position, Node*, PositionHasher> nodes;
std::priority_queue<Node*, std::vector<Node*>, LessNode> searchList;
@ -857,10 +874,11 @@ std::vector<Otc::Direction> Map::findPath(const Position& startPos, const Positi
}
dirs.pop_back();
std::reverse(dirs.begin(), dirs.end());
}
} else
result = Otc::PATHFIND_NO_WAY;
for(auto it : nodes)
delete it.second;
return dirs;
return ret;
}

2
src/otclient/core/map.h
View File

@ -137,7 +137,7 @@ public:
std::vector<AnimatedTextPtr> getAnimatedTexts() { return m_animatedTexts; }
std::vector<StaticTextPtr> getStaticTexts() { return m_staticTexts; }
std::vector<Otc::Direction> findPath(const Position& start, const Position& goal, int maxSteps);
std::tuple<std::vector<Otc::Direction>, Otc::PathFindResult> findPath(const Position& start, const Position& goal, int maxSteps);
private:
std::unordered_map<Position, TilePtr, PositionHasher> m_tiles;

6
src/otclient/luascript/luavaluecasts.cpp
View File

@ -23,7 +23,7 @@
#include "luavaluecasts.h"
#include <framework/luascript/luainterface.h>
void push_luavalue(const Outfit& outfit)
int push_luavalue(const Outfit& outfit)
{
g_lua.newTable();
g_lua.pushInteger(outfit.getId());
@ -38,6 +38,7 @@ void push_luavalue(const Outfit& outfit)
g_lua.setField("legs");
g_lua.pushInteger(outfit.getFeet());
g_lua.setField("feet");
return 1;
}
bool luavalue_cast(int index, Outfit& outfit)
@ -60,7 +61,7 @@ bool luavalue_cast(int index, Outfit& outfit)
return false;
}
void push_luavalue(const Position& pos)
int push_luavalue(const Position& pos)
{
if(pos.isValid()) {
g_lua.newTable();
@ -72,6 +73,7 @@ void push_luavalue(const Position& pos)
g_lua.setField("z");
} else
g_lua.pushNil();
return 1;
}
bool luavalue_cast(int index, Position& pos)

4
src/otclient/luascript/luavaluecasts.h
View File

@ -28,11 +28,11 @@
#include <otclient/core/outfit.h>
// outfit
void push_luavalue(const Outfit& outfit);
int push_luavalue(const Outfit& outfit);
bool luavalue_cast(int index, Outfit& outfit);
// position
void push_luavalue(const Position& pos);
int push_luavalue(const Position& pos);
bool luavalue_cast(int index, Position& pos);
#endif