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257 lines (188 loc) · 6.46 KB
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////////////////////////////////////////////////////////////////////////////////
// Distributed under the Boost Software License, Version 1.0. //
// (See accompanying file LICENSE or copy at //
// https://www.boost.org/LICENSE_1_0.txt) //
////////////////////////////////////////////////////////////////////////////////
#include <sstream>
#include <string>
extern "C"
{
#include "lauxlib.h"
#include "lua.h"
#include "lualib.h"
}
#include "core/error_handling.h"
#include "core/object_pool.h"
#include "core/vector3.h"
namespace iris::interop::lua
{
static ObjectPool<Vector3> vector3_pool;
void vector3_construct_raw(lua_State *state, const Vector3 &vec)
{
auto **user_data = reinterpret_cast<Vector3 **>(::lua_newuserdata(state, sizeof(Vector3 *)));
*user_data = vector3_pool.next(vec);
luaL_setmetatable(state, "Vector3");
}
Vector3 **get_vector3(lua_State *state)
{
auto *user_data = luaL_checkudata(state, 1, "Vector3");
expect(user_data != nullptr, "incorrect user data");
return reinterpret_cast<Vector3 **>(user_data);
}
int vector3_constructor(lua_State *state)
{
const auto arg1 = static_cast<float>(::luaL_checknumber(state, 1));
const auto arg2 = static_cast<float>(::luaL_checknumber(state, 2));
const auto arg3 = static_cast<float>(::luaL_checknumber(state, 3));
auto **user_data = reinterpret_cast<Vector3 **>(::lua_newuserdata(state, sizeof(Vector3 *)));
*user_data = vector3_pool.next(arg1, arg2, arg3);
luaL_setmetatable(state, "Vector3");
return 1;
}
int vector3_destructor(lua_State *state)
{
vector3_pool.release(*get_vector3(state));
return 0;
}
int vector3_x(lua_State *state)
{
auto **vector = get_vector3(state);
::lua_pushnumber(state, (*vector)->x);
return 1;
}
int vector3_set_x(lua_State *state)
{
auto **vector = get_vector3(state);
(*vector)->x = static_cast<float>(::luaL_checknumber(state, 2));
return 0;
}
int vector3_y(lua_State *state)
{
auto **vector = get_vector3(state);
::lua_pushnumber(state, (*vector)->y);
return 1;
}
int vector3_set_y(lua_State *state)
{
auto **vector = get_vector3(state);
(*vector)->y = static_cast<float>(::luaL_checknumber(state, 2));
return 0;
}
int vector3_z(lua_State *state)
{
auto **vector = get_vector3(state);
::lua_pushnumber(state, (*vector)->z);
return 1;
}
int vector3_set_z(lua_State *state)
{
auto **vector = get_vector3(state);
(*vector)->z = static_cast<float>(::luaL_checknumber(state, 2));
return 0;
}
int vector3_to_string(lua_State *state)
{
auto **vector = get_vector3(state);
std::stringstream strm{};
strm << **vector;
const auto str = strm.str();
::lua_pushstring(state, str.c_str());
return 1;
}
int vector3_equality(lua_State *state)
{
auto *user_data1 = luaL_checkudata(state, 1, "Vector3");
expect(user_data1 != nullptr, "incorrect user data");
auto **vec1 = reinterpret_cast<Vector3 **>(user_data1);
auto *user_data2 = luaL_checkudata(state, 2, "Vector3");
expect(user_data2 != nullptr, "incorrect user data");
auto **vec2 = reinterpret_cast<Vector3 **>(user_data2);
::lua_pushboolean(state, **vec1 == **vec2);
return 1;
}
int vector3_negate(lua_State *state)
{
auto **vector = get_vector3(state);
vector3_construct_raw(state, -**vector);
return 1;
}
int vector3_add(lua_State *state)
{
auto *user_data1 = luaL_checkudata(state, 2, "Vector3");
expect(user_data1 != nullptr, "incorrect user data");
auto **vec1 = reinterpret_cast<Vector3 **>(user_data1);
auto *user_data2 = luaL_checkudata(state, 1, "Vector3");
expect(user_data2 != nullptr, "incorrect user data");
auto **vec2 = reinterpret_cast<Vector3 **>(user_data2);
vector3_construct_raw(state, **vec1 + **vec2);
return 1;
}
int vector3_sub(lua_State *state)
{
auto *user_data1 = luaL_checkudata(state, 1, "Vector3");
expect(user_data1 != nullptr, "incorrect user data");
auto **vec1 = reinterpret_cast<Vector3 **>(user_data1);
auto *user_data2 = luaL_checkudata(state, 2, "Vector3");
expect(user_data2 != nullptr, "incorrect user data");
auto **vec2 = reinterpret_cast<Vector3 **>(user_data2);
vector3_construct_raw(state, **vec1 - **vec2);
return 1;
}
int vector3_mul(lua_State *state)
{
auto *user_data1 = luaL_checkudata(state, 1, "Vector3");
expect(user_data1 != nullptr, "incorrect user data");
auto **vec1 = reinterpret_cast<Vector3 **>(user_data1);
auto *user_data2 = luaL_checkudata(state, 2, "Vector3");
expect(user_data2 != nullptr, "incorrect user data");
auto **vec2 = reinterpret_cast<Vector3 **>(user_data2);
vector3_construct_raw(state, **vec1 * **vec2);
return 1;
}
int vector3_dot(lua_State *state)
{
auto *user_data1 = luaL_checkudata(state, 1, "Vector3");
expect(user_data1 != nullptr, "incorrect user data");
auto **vec1 = reinterpret_cast<Vector3 **>(user_data1);
auto *user_data2 = luaL_checkudata(state, 2, "Vector3");
expect(user_data2 != nullptr, "incorrect user data");
auto **vec2 = reinterpret_cast<Vector3 **>(user_data2);
::lua_pushnumber(state, (*vec1)->dot(**vec2));
return 1;
}
int vector3_cross(lua_State *state)
{
auto *user_data1 = luaL_checkudata(state, 1, "Vector3");
expect(user_data1 != nullptr, "incorrect user data");
auto **vec1 = reinterpret_cast<Vector3 **>(user_data1);
auto *user_data2 = luaL_checkudata(state, 2, "Vector3");
expect(user_data2 != nullptr, "incorrect user data");
auto **vec2 = reinterpret_cast<Vector3 **>(user_data2);
vector3_construct_raw(state, (*vec1)->cross(**vec2));
return 1;
}
int vector3_normalise(lua_State *state)
{
auto **vector = get_vector3(state);
(*vector)->normalise();
return 0;
}
int vector3_magnitude(lua_State *state)
{
auto **vector = get_vector3(state);
::lua_pushnumber(state, (*vector)->magnitude());
return 1;
}
int vector3_lerp(lua_State *state)
{
auto *user_data1 = luaL_checkudata(state, 1, "Vector3");
expect(user_data1 != nullptr, "incorrect user data");
auto **vec1 = reinterpret_cast<Vector3 **>(user_data1);
auto *user_data2 = luaL_checkudata(state, 2, "Vector3");
expect(user_data2 != nullptr, "incorrect user data");
auto **vec2 = reinterpret_cast<Vector3 **>(user_data2);
const auto amount = static_cast<float>(::luaL_checknumber(state, 3));
(*vec1)->lerp(**vec2, amount);
return 0;
}
}