435 lines
11 KiB
C++
435 lines
11 KiB
C++
#include <stdinc.hpp>
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#include "context.hpp"
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#include "error.hpp"
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#include "value_conversion.hpp"
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#include "../execution.hpp"
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#include "../functions.hpp"
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#include "../../../component/command.hpp"
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#include "../../../component/chat.hpp"
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#include <utils/string.hpp>
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namespace scripting::lua
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{
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namespace
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{
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vector normalize_vector(const vector& vec)
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{
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const auto length = sqrt((vec.get_x() * vec.get_x()) + (vec.get_y() * vec.get_y()) + (vec.get_z() * vec.get_z()));
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return vector(
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vec.get_x() / length,
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vec.get_y() / length,
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vec.get_z() / length
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);
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}
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vector vector_to_angles(const vector& vec)
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{
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const auto x = vec.get_x();
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const auto y = vec.get_y();
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const auto z = vec.get_z();
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float yaw = 0.f;
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float pitch = 0.f;
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if (x != 0.f && y != 0.f)
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{
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const auto v9 = atan2f(y, x) * 57.295776;
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const auto v10 = v9 < 0.f
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? 360.f
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: 0.0;
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yaw = v9 + v10;
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const auto v11 = sqrtf((x * x) + (y * y));
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const auto v12 = atan2f(z, v11) * -57.295776;
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const auto v3 = v12 < 0
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? 360.f
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: 0.f;
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pitch = v12 + v3;
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}
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else
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{
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pitch = z < 0.f
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? 270.f
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: 90.f;
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}
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return vector(
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pitch,
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yaw,
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0
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);
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}
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void setup_entity_type(sol::state& state, event_handler& handler, scheduler& scheduler)
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{
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state["level"] = entity{*game::levelEntityId};
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auto vector_type = state.new_usertype<vector>("vector", sol::constructors<vector(float, float, float)>());
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vector_type["x"] = sol::property(&vector::get_x, &vector::set_x);
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vector_type["y"] = sol::property(&vector::get_y, &vector::set_y);
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vector_type["z"] = sol::property(&vector::get_z, &vector::set_z);
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vector_type["r"] = sol::property(&vector::get_x, &vector::set_x);
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vector_type["g"] = sol::property(&vector::get_y, &vector::set_y);
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vector_type["b"] = sol::property(&vector::get_z, &vector::set_z);
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vector_type[sol::meta_function::addition] = sol::overload(
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[](const vector& a, const vector& b)
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{
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return vector(
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a.get_x() + b.get_x(),
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a.get_y() + b.get_y(),
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a.get_z() + b.get_z()
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);
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},
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[](const vector& a, const int value)
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{
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return vector(
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a.get_x() + value,
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a.get_y() + value,
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a.get_z() + value
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);
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}
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);
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vector_type[sol::meta_function::subtraction] = sol::overload(
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[](const vector& a, const vector& b)
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{
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return vector(
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a.get_x() - b.get_x(),
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a.get_y() - b.get_y(),
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a.get_z() - b.get_z()
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);
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},
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[](const vector& a, const int value)
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{
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return vector(
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a.get_x() - value,
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a.get_y() - value,
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a.get_z() - value
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);
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}
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);
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vector_type[sol::meta_function::multiplication] = sol::overload(
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[](const vector& a, const vector& b)
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{
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return vector(
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a.get_x() * b.get_x(),
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a.get_y() * b.get_y(),
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a.get_z() * b.get_z()
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);
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},
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[](const vector& a, const int value)
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{
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return vector(
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a.get_x() * value,
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a.get_y() * value,
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a.get_z() * value
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);
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}
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);
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vector_type[sol::meta_function::division] = sol::overload(
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[](const vector& a, const vector& b)
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{
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return vector(
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a.get_x() / b.get_x(),
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a.get_y() / b.get_y(),
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a.get_z() / b.get_z()
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);
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},
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[](const vector& a, const int value)
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{
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return vector(
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a.get_x() / value,
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a.get_y() / value,
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a.get_z() / value
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);
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}
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);
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vector_type[sol::meta_function::equal_to] = [](const vector& a, const vector& b)
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{
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const auto normal_a = normalize_vector(a);
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const auto normal_b = normalize_vector(b);
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return normal_a.get_x() == normal_b.get_x() &&
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normal_a.get_y() == normal_b.get_y() &&
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normal_a.get_z() == normal_b.get_z();
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};
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vector_type[sol::meta_function::length] = [](const vector& a)
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{
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return sqrt((a.get_x() * a.get_x()) + (a.get_y() * a.get_y()) + (a.get_z() * a.get_z()));
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};
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vector_type[sol::meta_function::to_string] = [](const vector& a)
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{
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return utils::string::va("{x: %f, y: %f, z: %f}", a.get_x(), a.get_y(), a.get_z());
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};
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vector_type["normalize"] = [](const vector& a)
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{
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return normalize_vector(a);
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};
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vector_type["toangles"] = [](const vector& a)
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{
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return call("vectortoangles", {a}).as<vector>();
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};
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vector_type["toyaw"] = [](const vector& a)
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{
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return call("vectortoyaw", {a}).as<vector>();
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};
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vector_type["tolerp"] = [](const vector& a)
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{
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return call("vectortolerp", {a}).as<vector>();
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};
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vector_type["toup"] = [](const vector& a)
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{
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return call("anglestoup", {a}).as<vector>();
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};
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vector_type["toright"] = [](const vector& a)
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{
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return call("anglestoright", {a}).as<vector>();
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};
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vector_type["toforward"] = [](const vector& a)
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{
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return call("anglestoforward", {a}).as<vector>();
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};
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auto entity_type = state.new_usertype<entity>("entity");
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for (const auto& func : method_map)
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{
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const auto name = utils::string::to_lower(func.first);
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entity_type[name.data()] = [name](const entity& entity, const sol::this_state s, sol::variadic_args va)
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{
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std::vector<script_value> arguments{};
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for (auto arg : va)
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{
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arguments.push_back(convert({s, arg}));
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}
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return convert(s, entity.call(name, arguments));
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};
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}
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entity_type["set"] = [](const entity& entity, const std::string& field,
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const sol::lua_value& value)
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{
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entity.set(field, convert(value));
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};
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entity_type["get"] = [](const entity& entity, const sol::this_state s, const std::string& field)
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{
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return convert(s, entity.get(field));
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};
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entity_type["notify"] = [](const entity& entity, const sol::this_state s, const std::string& event,
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sol::variadic_args va)
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{
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std::vector<script_value> arguments{};
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for (auto arg : va)
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{
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arguments.push_back(convert({s, arg}));
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}
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notify(entity, event, arguments);
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};
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entity_type["onnotify"] = [&handler](const entity& entity, const std::string& event,
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const event_callback& callback)
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{
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event_listener listener{};
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listener.callback = callback;
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listener.entity = entity;
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listener.event = event;
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listener.is_volatile = false;
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return handler.add_event_listener(std::move(listener));
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};
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entity_type["onnotifyonce"] = [&handler](const entity& entity, const std::string& event,
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const event_callback& callback)
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{
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event_listener listener{};
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listener.callback = callback;
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listener.entity = entity;
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listener.event = event;
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listener.is_volatile = true;
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return handler.add_event_listener(std::move(listener));
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};
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entity_type["call"] = [](const entity& entity, const sol::this_state s, const std::string& function,
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sol::variadic_args va)
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{
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std::vector<script_value> arguments{};
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for (auto arg : va)
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{
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arguments.push_back(convert({s, arg}));
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}
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return convert(s, entity.call(function, arguments));
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};
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entity_type[sol::meta_function::new_index] = [](const entity& entity, const std::string& field,
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const sol::lua_value& value)
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{
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entity.set(field, convert(value));
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};
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entity_type[sol::meta_function::index] = [](const entity& entity, const sol::this_state s, const std::string& field)
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{
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return convert(s, entity.get(field));
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};
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struct game
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{
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};
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auto game_type = state.new_usertype<game>("game_");
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state["game"] = game();
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for (const auto& func : function_map)
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{
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const auto name = utils::string::to_lower(func.first);
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game_type[name] = [name](const game&, const sol::this_state s, sol::variadic_args va)
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{
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std::vector<script_value> arguments{};
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for (auto arg : va)
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{
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arguments.push_back(convert({s, arg}));
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}
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return convert(s, call(name, arguments));
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};
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}
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game_type["call"] = [](const game&, const sol::this_state s, const std::string& function,
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sol::variadic_args va)
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{
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std::vector<script_value> arguments{};
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for (auto arg : va)
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{
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arguments.push_back(convert({s, arg}));
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}
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return convert(s, call(function, arguments));
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};
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game_type["ontimeout"] = [&scheduler](const game&, const sol::protected_function& callback,
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const long long milliseconds)
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{
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return scheduler.add(callback, milliseconds, true);
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};
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game_type["oninterval"] = [&scheduler](const game&, const sol::protected_function& callback,
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const long long milliseconds)
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{
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return scheduler.add(callback, milliseconds, false);
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};
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game_type["executecommand"] = [](const game&, const std::string& command)
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{
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command::execute(command, false);
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};
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game_type["setdiscordstate"] = [](const game&, const std::string& state)
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{
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command::execute(utils::string::va("setdiscordstate %s", state.data()), false);
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};
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game_type["say"] = [](const game&, const std::string& msg)
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{
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chat::print(msg);
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};
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}
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}
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context::context(std::string folder)
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: folder_(std::move(folder))
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, scheduler_(state_)
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, event_handler_(state_)
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{
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this->state_.open_libraries(sol::lib::base,
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sol::lib::package,
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sol::lib::io,
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sol::lib::string,
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sol::lib::os,
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sol::lib::math,
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sol::lib::table);
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this->state_["include"] = [this](const std::string& file)
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{
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this->load_script(file);
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};
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sol::function old_require = this->state_["require"];
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auto base_path = utils::string::replace(this->folder_, "/", ".") + ".";
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this->state_["require"] = [base_path, old_require](const std::string& path)
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{
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return old_require(base_path + path);
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};
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this->state_["scriptdir"] = [this]()
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{
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return this->folder_;
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};
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setup_entity_type(this->state_, this->event_handler_, this->scheduler_);
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printf("Loading script '%s'\n", this->folder_.data());
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this->load_script("__init__");
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}
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context::~context()
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{
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this->state_.collect_garbage();
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this->scheduler_.clear();
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this->event_handler_.clear();
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this->state_ = {};
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}
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void context::run_frame()
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{
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this->scheduler_.run_frame();
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this->state_.collect_garbage();
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}
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void context::notify(const event& e)
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{
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this->scheduler_.dispatch(e);
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this->event_handler_.dispatch(e);
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}
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void context::load_script(const std::string& script)
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{
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if (!this->loaded_scripts_.emplace(script).second)
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{
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return;
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}
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const auto file = (std::filesystem::path{this->folder_} / (script + ".lua")).generic_string();
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handle_error(this->state_.safe_script_file(file, &sol::script_pass_on_error));
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}
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}
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