mirror of https://github.com/OpenMW/openmw.git
You cannot select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
408 lines
18 KiB
C++
408 lines
18 KiB
C++
#include "utilpackage.hpp"
|
|
|
|
#include <algorithm>
|
|
#include <array>
|
|
#include <iomanip>
|
|
#include <limits>
|
|
#include <sstream>
|
|
|
|
#include <components/misc/color.hpp>
|
|
#include <components/misc/mathutil.hpp>
|
|
|
|
#include "luastate.hpp"
|
|
#include "util.hpp"
|
|
|
|
#include "shapes/box.hpp"
|
|
|
|
namespace sol
|
|
{
|
|
template <>
|
|
struct is_automagical<LuaUtil::Vec2> : std::false_type
|
|
{
|
|
};
|
|
|
|
template <>
|
|
struct is_automagical<LuaUtil::Vec3> : std::false_type
|
|
{
|
|
};
|
|
|
|
template <>
|
|
struct is_automagical<LuaUtil::Vec4> : std::false_type
|
|
{
|
|
};
|
|
|
|
template <>
|
|
struct is_automagical<Misc::Color> : std::false_type
|
|
{
|
|
};
|
|
|
|
template <>
|
|
struct is_automagical<LuaUtil::TransformM> : std::false_type
|
|
{
|
|
};
|
|
|
|
template <>
|
|
struct is_automagical<LuaUtil::TransformQ> : std::false_type
|
|
{
|
|
};
|
|
|
|
template <>
|
|
struct is_automagical<LuaUtil::Box> : std::false_type
|
|
{
|
|
};
|
|
}
|
|
|
|
namespace LuaUtil
|
|
{
|
|
namespace
|
|
{
|
|
template <typename T>
|
|
float zero(const T& v)
|
|
{
|
|
return 0.f;
|
|
}
|
|
|
|
template <typename T>
|
|
float one(const T& v)
|
|
{
|
|
return 1.f;
|
|
}
|
|
|
|
template <typename T, std::size_t I>
|
|
float get(const T& v)
|
|
{
|
|
return v[I];
|
|
}
|
|
|
|
// Creates bindings for all possible permutations (repetition allowed) of x,y,z,w fields
|
|
template <typename T>
|
|
void addSwizzleFields(sol::usertype<T>& type)
|
|
{
|
|
// Generate mapping of swizzle characters to their getter functions
|
|
constexpr auto components = []() {
|
|
std::array<std::pair<char, float (*)(const T&)>, T::num_components + 2> arr;
|
|
|
|
// 0/1 Components
|
|
arr[T::num_components] = { '0', zero<T> };
|
|
arr[T::num_components + 1] = { '1', one<T> };
|
|
|
|
// x,y,z,w components
|
|
if constexpr (T::num_components > 1)
|
|
{
|
|
arr[0] = { 'x', get<T, 0> };
|
|
arr[1] = { 'y', get<T, 1> };
|
|
}
|
|
|
|
if constexpr (T::num_components > 2)
|
|
arr[2] = { 'z', get<T, 2> };
|
|
|
|
if constexpr (T::num_components > 3)
|
|
arr[3] = { 'w', get<T, 3> };
|
|
|
|
return arr;
|
|
}();
|
|
|
|
// Iterate over the permutations
|
|
for (const auto& comp1 : components)
|
|
{
|
|
// Single component swizzle
|
|
type[std::string{ comp1.first }] = sol::readonly_property([=](const T& v) { return comp1.second(v); });
|
|
|
|
for (const auto& comp2 : components)
|
|
{
|
|
// Two component swizzles
|
|
type[std::string{ comp1.first, comp2.first }]
|
|
= sol::readonly_property([=](const T& v) { return Vec2(comp1.second(v), comp2.second(v)); });
|
|
|
|
for (const auto& comp3 : components)
|
|
{
|
|
// Three component swizzles
|
|
type[std::string{ comp1.first, comp2.first, comp3.first }] = sol::readonly_property(
|
|
[=](const T& v) { return Vec3(comp1.second(v), comp2.second(v), comp3.second(v)); });
|
|
|
|
for (const auto& comp4 : components)
|
|
{
|
|
// Four component swizzles
|
|
type[std::string{ comp1.first, comp2.first, comp3.first, comp4.first }]
|
|
= sol::readonly_property([=](const T& v) {
|
|
return Vec4(comp1.second(v), comp2.second(v), comp3.second(v), comp4.second(v));
|
|
});
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
void addVectorMethods(sol::usertype<T>& vectorType)
|
|
{
|
|
vectorType[sol::meta_function::unary_minus] = [](const T& a) { return -a; };
|
|
vectorType[sol::meta_function::addition] = [](const T& a, const T& b) { return a + b; };
|
|
vectorType[sol::meta_function::subtraction] = [](const T& a, const T& b) { return a - b; };
|
|
vectorType[sol::meta_function::equal_to] = [](const T& a, const T& b) { return a == b; };
|
|
vectorType[sol::meta_function::multiplication] = sol::overload(
|
|
[](const T& a, float c) { return a * c; }, [](const T& a, const T& b) { return a * b; });
|
|
vectorType[sol::meta_function::division] = [](const T& a, float c) { return a / c; };
|
|
vectorType["dot"] = [](const T& a, const T b) { return a * b; };
|
|
vectorType["length"] = &T::length;
|
|
vectorType["length2"] = &T::length2;
|
|
vectorType["normalize"] = [](const T& v) {
|
|
float len = v.length();
|
|
if (len == 0)
|
|
return std::make_tuple(T(), 0.f);
|
|
else
|
|
return std::make_tuple(v * (1.f / len), len);
|
|
};
|
|
vectorType["emul"] = [](const T& a, const T& b) {
|
|
T result;
|
|
for (int i = 0; i < T::num_components; ++i)
|
|
result[i] = a[i] * b[i];
|
|
return result;
|
|
};
|
|
vectorType["ediv"] = [](const T& a, const T& b) {
|
|
T result;
|
|
for (int i = 0; i < T::num_components; ++i)
|
|
result[i] = a[i] / b[i];
|
|
return result;
|
|
};
|
|
vectorType[sol::meta_function::to_string] = [](const T& v) {
|
|
std::stringstream ss;
|
|
ss << std::setprecision(std::numeric_limits<typename T::value_type>::max_exponent10);
|
|
ss << "(" << v[0];
|
|
for (int i = 1; i < T::num_components; ++i)
|
|
ss << ", " << v[i];
|
|
ss << ")";
|
|
return ss.str();
|
|
};
|
|
|
|
addSwizzleFields(vectorType);
|
|
}
|
|
}
|
|
|
|
sol::table initUtilPackage(lua_State* L)
|
|
{
|
|
sol::state_view lua(L);
|
|
sol::table util(lua, sol::create);
|
|
|
|
// Lua bindings for Vec2
|
|
util["vector2"] = [](float x, float y) { return Vec2(x, y); };
|
|
sol::usertype<Vec2> vec2Type = lua.new_usertype<Vec2>("Vec2");
|
|
addVectorMethods<Vec2>(vec2Type);
|
|
vec2Type["rotate"] = &Misc::rotateVec2f;
|
|
|
|
// Lua bindings for Vec3
|
|
util["vector3"] = [](float x, float y, float z) { return Vec3(x, y, z); };
|
|
sol::usertype<Vec3> vec3Type = lua.new_usertype<Vec3>("Vec3");
|
|
addVectorMethods<Vec3>(vec3Type);
|
|
vec3Type[sol::meta_function::involution] = [](const Vec3& a, const Vec3& b) { return a ^ b; };
|
|
vec3Type["cross"] = [](const Vec3& a, const Vec3& b) { return a ^ b; };
|
|
|
|
// Lua bindings for Vec4
|
|
util["vector4"] = [](float x, float y, float z, float w) { return Vec4(x, y, z, w); };
|
|
sol::usertype<Vec4> vec4Type = lua.new_usertype<Vec4>("Vec4");
|
|
addVectorMethods<Vec4>(vec4Type);
|
|
|
|
// Lua bindings for Box
|
|
util["box"] = sol::overload([](const Vec3& center, const Vec3& halfSize) { return Box(center, halfSize); },
|
|
[](const TransformM& transform) { return Box(transform.mM); },
|
|
[](const TransformQ& transform) { return Box(Vec3(), Vec3(1, 1, 1), transform.mQ); });
|
|
sol::usertype<Box> boxType = lua.new_usertype<Box>("Box");
|
|
boxType["center"] = sol::readonly_property([](const Box& b) { return b.mCenter; });
|
|
boxType["halfSize"] = sol::readonly_property([](const Box& b) { return b.mHalfSize; });
|
|
boxType["transform"] = sol::readonly_property([](const Box& b) { return TransformM{ b.asTransform() }; });
|
|
boxType["vertices"] = sol::readonly_property([lua](const Box& b) {
|
|
sol::table table(lua, sol::create);
|
|
const auto vertices = b.vertices();
|
|
for (size_t i = 0; i < vertices.size(); ++i)
|
|
table[toLuaIndex(i)] = vertices[i];
|
|
return table;
|
|
});
|
|
boxType[sol::meta_function::equal_to] = [](const Box& a, const Box& b) { return a == b; };
|
|
boxType[sol::meta_function::to_string] = [](const Box& b) {
|
|
std::stringstream ss;
|
|
ss << "Box{ ";
|
|
ss << "center(" << b.mCenter.x() << ", " << b.mCenter.y() << ", " << b.mCenter.z() << ") ";
|
|
ss << "halfSize(" << b.mHalfSize.x() << ", " << b.mHalfSize.y() << ", " << b.mHalfSize.z() << ")";
|
|
ss << " }";
|
|
return ss.str();
|
|
};
|
|
|
|
// Lua bindings for Color
|
|
sol::usertype<Misc::Color> colorType = lua.new_usertype<Misc::Color>("Color");
|
|
colorType["r"] = sol::readonly_property([](const Misc::Color& c) { return c.r(); });
|
|
colorType["g"] = sol::readonly_property([](const Misc::Color& c) { return c.g(); });
|
|
colorType["b"] = sol::readonly_property([](const Misc::Color& c) { return c.b(); });
|
|
colorType["a"] = sol::readonly_property([](const Misc::Color& c) { return c.a(); });
|
|
colorType[sol::meta_function::to_string] = [](const Misc::Color& c) { return c.toString(); };
|
|
colorType["asRgba"] = [](const Misc::Color& c) { return Vec4(c.r(), c.g(), c.b(), c.a()); };
|
|
colorType["asRgb"] = [](const Misc::Color& c) { return Vec3(c.r(), c.g(), c.b()); };
|
|
colorType["asHex"] = [](const Misc::Color& c) { return c.toHex(); };
|
|
|
|
sol::table color(lua, sol::create);
|
|
color["rgba"] = [](float r, float g, float b, float a) { return Misc::Color(r, g, b, a); };
|
|
color["rgb"] = [](float r, float g, float b) { return Misc::Color(r, g, b, 1); };
|
|
color["hex"] = [](std::string_view hex) { return Misc::Color::fromHex(hex); };
|
|
util["color"] = LuaUtil::makeReadOnly(color);
|
|
|
|
// Lua bindings for Transform
|
|
sol::usertype<TransformM> transMType = lua.new_usertype<TransformM>("TransformM");
|
|
sol::usertype<TransformQ> transQType = lua.new_usertype<TransformQ>("TransformQ");
|
|
sol::table transforms(lua, sol::create);
|
|
util["transform"] = LuaUtil::makeReadOnly(transforms);
|
|
|
|
transforms["identity"] = sol::make_object(lua, TransformQ{ osg::Quat() });
|
|
transforms["move"] = sol::overload([](const Vec3& v) { return TransformM{ osg::Matrixf::translate(v) }; },
|
|
[](float x, float y, float z) { return TransformM{ osg::Matrixf::translate(x, y, z) }; });
|
|
transforms["scale"] = sol::overload([](const Vec3& v) { return TransformM{ osg::Matrixf::scale(v) }; },
|
|
[](float x, float y, float z) { return TransformM{ osg::Matrixf::scale(x, y, z) }; });
|
|
transforms["rotate"] = [](float angle, const Vec3& axis) { return TransformQ{ osg::Quat(angle, axis) }; };
|
|
transforms["rotateX"] = [](float angle) { return TransformQ{ osg::Quat(angle, Vec3(-1, 0, 0)) }; };
|
|
transforms["rotateY"] = [](float angle) { return TransformQ{ osg::Quat(angle, Vec3(0, -1, 0)) }; };
|
|
transforms["rotateZ"] = [](float angle) { return TransformQ{ osg::Quat(angle, Vec3(0, 0, -1)) }; };
|
|
|
|
transMType[sol::meta_function::multiplication]
|
|
= sol::overload([](const TransformM& a, const Vec3& b) { return a.mM.preMult(b); },
|
|
[](const TransformM& a, const TransformM& b) { return TransformM{ b.mM * a.mM }; },
|
|
[](const TransformM& a, const TransformQ& b) {
|
|
TransformM res{ a.mM };
|
|
res.mM.preMultRotate(b.mQ);
|
|
return res;
|
|
});
|
|
transMType[sol::meta_function::to_string] = [](const TransformM& m) {
|
|
osg::Vec3f trans, scale;
|
|
osg::Quat rotation, so;
|
|
m.mM.decompose(trans, rotation, scale, so);
|
|
osg::Quat::value_type rot_angle, so_angle;
|
|
osg::Vec3f rot_axis, so_axis;
|
|
rotation.getRotate(rot_angle, rot_axis);
|
|
so.getRotate(so_angle, so_axis);
|
|
std::stringstream ss;
|
|
ss << "TransformM{ ";
|
|
if (trans.length2() > 0)
|
|
ss << "move(" << trans.x() << ", " << trans.y() << ", " << trans.z() << ") ";
|
|
if (rot_angle != 0)
|
|
ss << "rotation(angle=" << rot_angle << ", axis=(" << rot_axis.x() << ", " << rot_axis.y() << ", "
|
|
<< rot_axis.z() << ")) ";
|
|
if (scale.x() != 1 || scale.y() != 1 || scale.z() != 1)
|
|
ss << "scale(" << scale.x() << ", " << scale.y() << ", " << scale.z() << ") ";
|
|
if (so_angle != 0)
|
|
ss << "rotation(angle=" << so_angle << ", axis=(" << so_axis.x() << ", " << so_axis.y() << ", "
|
|
<< so_axis.z() << ")) ";
|
|
ss << "}";
|
|
return ss.str();
|
|
};
|
|
transMType["apply"] = [](const TransformM& a, const Vec3& b) { return a.mM.preMult(b); },
|
|
transMType["inverse"] = [](const TransformM& m) {
|
|
TransformM res;
|
|
if (!res.mM.invert_4x3(m.mM))
|
|
throw std::runtime_error("This Transform is not invertible");
|
|
return res;
|
|
};
|
|
transMType["getYaw"] = [](const TransformM& m) {
|
|
osg::Vec3f angles = Misc::toEulerAnglesXZ(m.mM);
|
|
return angles.z();
|
|
};
|
|
transMType["getPitch"] = [](const TransformM& m) {
|
|
osg::Vec3f angles = Misc::toEulerAnglesXZ(m.mM);
|
|
return angles.x();
|
|
};
|
|
transMType["getAnglesXZ"] = [](const TransformM& m) {
|
|
osg::Vec3f angles = Misc::toEulerAnglesXZ(m.mM);
|
|
return std::make_tuple(angles.x(), angles.z());
|
|
};
|
|
transMType["getAnglesZYX"] = [](const TransformM& m) {
|
|
osg::Vec3f angles = Misc::toEulerAnglesZYX(m.mM);
|
|
return std::make_tuple(angles.z(), angles.y(), angles.x());
|
|
};
|
|
|
|
transQType[sol::meta_function::multiplication]
|
|
= sol::overload([](const TransformQ& a, const Vec3& b) { return a.mQ * b; },
|
|
[](const TransformQ& a, const TransformQ& b) { return TransformQ{ b.mQ * a.mQ }; },
|
|
[](const TransformQ& a, const TransformM& b) {
|
|
TransformM res{ b };
|
|
res.mM.postMultRotate(a.mQ);
|
|
return res;
|
|
});
|
|
transQType[sol::meta_function::to_string] = [](const TransformQ& q) {
|
|
osg::Quat::value_type angle;
|
|
osg::Vec3f axis;
|
|
q.mQ.getRotate(angle, axis);
|
|
std::stringstream ss;
|
|
ss << "TransformQ{ rotation(angle=" << angle << ", axis=(" << axis.x() << ", " << axis.y() << ", "
|
|
<< axis.z() << ")) }";
|
|
return ss.str();
|
|
};
|
|
transQType["apply"] = [](const TransformQ& a, const Vec3& b) { return a.mQ * b; },
|
|
transQType["inverse"] = [](const TransformQ& q) { return TransformQ{ q.mQ.inverse() }; };
|
|
transQType["getYaw"] = [](const TransformQ& q) {
|
|
osg::Vec3f angles = Misc::toEulerAnglesXZ(q.mQ);
|
|
return angles.z();
|
|
};
|
|
transQType["getPitch"] = [](const TransformQ& q) {
|
|
osg::Vec3f angles = Misc::toEulerAnglesXZ(q.mQ);
|
|
return angles.x();
|
|
};
|
|
transQType["getAnglesXZ"] = [](const TransformQ& q) {
|
|
osg::Vec3f angles = Misc::toEulerAnglesXZ(q.mQ);
|
|
return std::make_tuple(angles.x(), angles.z());
|
|
};
|
|
transQType["getAnglesZYX"] = [](const TransformQ& q) {
|
|
osg::Vec3f angles = Misc::toEulerAnglesZYX(q.mQ);
|
|
return std::make_tuple(angles.z(), angles.y(), angles.x());
|
|
};
|
|
|
|
// Utility functions
|
|
util["clamp"] = [](double value, double from, double to) { return std::clamp(value, from, to); };
|
|
// NOTE: `util["clamp"] = std::clamp<float>` causes error 'AddressSanitizer: stack-use-after-scope'
|
|
util["normalizeAngle"] = &Misc::normalizeAngle;
|
|
util["makeReadOnly"] = [](const sol::table& tbl) { return makeReadOnly(tbl, /*strictIndex=*/false); };
|
|
util["makeStrictReadOnly"] = [](const sol::table& tbl) { return makeReadOnly(tbl, /*strictIndex=*/true); };
|
|
util["remap"] = [](double value, double min, double max, double newMin, double newMax) {
|
|
return newMin + (value - min) * (newMax - newMin) / (max - min);
|
|
};
|
|
util["round"] = [](double value) { return round(value); };
|
|
|
|
if (lua["bit32"] != sol::nil)
|
|
{
|
|
sol::table bit = lua["bit32"];
|
|
util["bitOr"] = bit["bor"];
|
|
util["bitAnd"] = bit["band"];
|
|
util["bitXor"] = bit["bxor"];
|
|
util["bitNot"] = bit["bnot"];
|
|
}
|
|
else
|
|
{
|
|
util["bitOr"] = [](unsigned a, sol::variadic_args va) {
|
|
for (const auto& v : va)
|
|
a |= cast<unsigned>(v);
|
|
return a;
|
|
};
|
|
util["bitAnd"] = [](unsigned a, sol::variadic_args va) {
|
|
for (const auto& v : va)
|
|
a &= cast<unsigned>(v);
|
|
return a;
|
|
};
|
|
util["bitXor"] = [](unsigned a, sol::variadic_args va) {
|
|
for (const auto& v : va)
|
|
a ^= cast<unsigned>(v);
|
|
return a;
|
|
};
|
|
util["bitNot"] = [](unsigned a) { return ~a; };
|
|
}
|
|
|
|
util["loadCode"] = [](const std::string& code, const sol::table& env, sol::this_state s) {
|
|
sol::state_view lua(s);
|
|
sol::load_result res = lua.load(code, "", sol::load_mode::text);
|
|
if (!res.valid())
|
|
throw std::runtime_error("Lua error: " + res.get<std::string>());
|
|
sol::function fn = res;
|
|
sol::environment newEnv(lua, sol::create, env);
|
|
newEnv[sol::metatable_key][sol::meta_function::new_index] = env;
|
|
sol::set_environment(newEnv, fn);
|
|
return fn;
|
|
};
|
|
|
|
return util;
|
|
}
|
|
}
|