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Implement mappings for Lua types

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This commit is contained in:
Matthias Schiffer 2014-10-05 15:46:50 +02:00
parent 36d4c9298f
commit 1b250f668b
5 changed files with 266 additions and 0 deletions
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1
src/CMakeLists.txt
View file

@ -6,6 +6,7 @@ add_executable(rpgedit
control/MapContext.cpp
control/RPGEdit.cpp
model/Map.cpp
model/Scriptable.cpp
view/MapView.cpp
view/SpriteCache.cpp
)

7
src/control/ScriptContext.hpp
View file

@ -26,6 +26,8 @@
#pragma once
#include "../model/ScriptValue.hpp"
extern "C" {
#include <lua.h>
#include <lualib.h>
@ -100,6 +102,11 @@ public:
lua_close(L);
}
void setGlobal(const std::string &key, Model::ScriptValue *value) {
value->push(L);
lua_setglobal(L, key.c_str());
}
void load(const std::string &name) {
std::string filename = "../resources/script/" + name + ".lua";

143
src/model/ScriptValue.hpp Normal file
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@ -0,0 +1,143 @@
/*
Copyright (c) 2014, Matthias Schiffer <mschiffer@universe-factory.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
extern "C" {
#include <lua.h>
#include <lualib.h>
#include <lauxlib.h>
}
#include <memory>
#include <string>
#include <unordered_map>
namespace RPGEdit {
namespace Model {
class ScriptValue {
public:
virtual void push(lua_State *L) = 0;
virtual ~ScriptValue() {}
};
class ScriptBoolean : public ScriptValue {
private:
bool value;
public:
ScriptBoolean(bool value0) : value(value0) {
}
ScriptBoolean & operator=(bool newValue) {
value = newValue;
return *this;
}
operator bool() const {
return value;
}
virtual void push(lua_State *L) {
lua_pushboolean(L, value);
}
};
class ScriptNumber : public ScriptValue {
private:
lua_Number value;
public:
ScriptNumber(lua_Number value0) : value(value0) {
}
ScriptNumber & operator=(lua_Number newValue) {
value = newValue;
return *this;
}
operator lua_Number() const {
return value;
}
virtual void push(lua_State *L) {
lua_pushnumber(L, value);
}
};
class ScriptString : public ScriptValue {
private:
std::string value;
public:
ScriptString(std::string &value0) : value(value0) {
}
ScriptString & operator=(std::string &newValue) {
value = newValue;
return *this;
}
operator std::string &() {
return value;
}
virtual void push(lua_State *L) {
lua_pushstring(L, value.c_str());
}
};
class ScriptTable : public ScriptValue {
public:
typedef std::unordered_map<std::string, std::shared_ptr<ScriptValue>> MapType;
private:
MapType value;
public:
std::shared_ptr<ScriptValue> & operator[](const std::string &key) {
return value[key];
}
virtual void push(lua_State *L) {
lua_createtable(L, 0, value.size());
for (const auto &entry : value) {
lua_pushstring(L, entry.first.c_str());
entry.second->push(L);
lua_settable(L, -3);
}
}
};
}
}

58
src/model/Scriptable.cpp Normal file
View file

@ -0,0 +1,58 @@
/*
Copyright (c) 2014, Matthias Schiffer <mschiffer@universe-factory.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "Scriptable.hpp"
namespace RPGEdit {
namespace Model {
int Scriptable::gc(lua_State *L) {
std::shared_ptr<ScriptValue> *value = static_cast<std::shared_ptr<ScriptValue> *>(lua_touserdata(L, -1));
value->~shared_ptr<ScriptValue>();
return 0;
}
void Scriptable::setupMetatable(lua_State *L) {
if (luaL_newmetatable(L, "RPGEdit::Model::Scriptable")) {
lua_pushstring(L, "__metatable");
lua_pushstring(L, "protected");
lua_rawset(L, -3);
lua_pushstring(L, "__gc");
lua_pushcfunction(L, &gc);
lua_rawset(L, -3);
}
lua_setmetatable(L, -2);
}
}
}

57
src/model/Scriptable.hpp Normal file
View file

@ -0,0 +1,57 @@
/*
Copyright (c) 2014, Matthias Schiffer <mschiffer@universe-factory.net>
All rights reserved.
Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice,
this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice,
this list of conditions and the following disclaimer in the documentation
and/or other materials provided with the distribution.
THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#pragma once
#include "ScriptValue.hpp"
#include <new>
namespace RPGEdit {
namespace Model {
class Scriptable : public ScriptValue, public std::enable_shared_from_this<Scriptable> {
private:
static int gc(lua_State *L);
void setupMetatable(lua_State *L);
public:
virtual void push(lua_State *L) {
void *ptr = lua_newuserdata(L, sizeof(std::shared_ptr<ScriptValue>));
setupMetatable(L);
new (ptr) std::shared_ptr<ScriptValue>(shared_from_this());
}
};
}
}