106 lines
3.2 KiB
C++
106 lines
3.2 KiB
C++
#pragma once
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#include "component/component.h"
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#include "../transformable.h"
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#include "../util.h"
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#include <iterator>
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#include <vector>
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#include <iostream>
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#include <chrono>
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#include <random>
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#include <bitset>
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#include <type_traits>
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namespace simpleengine {
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/**
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* @brief A Model is a object that will be shown on the screen by a renderer.
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*
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*/
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class Entity : public simpleengine::Event, public simpleengine::Transformable {
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// TODO: Don't extend from Event, create own destroy function
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private:
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static uint32_t incrementing_handle;
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uint32_t handle;
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public:
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std::vector<std::shared_ptr<Component>> components;
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Entity() : components({}) {
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handle = incrementing_handle++;
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}
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/* Entity() : components({}) {
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std::random_device rd; // obtain a random number from hardware
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std::mt19937 gen(rd()); // seed the generator
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std::uniform_int_distribution<uint16_t> distr(1, std::numeric_limits<std::uint16_t>::max());
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uint16_t num = distr(gen);
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uint32_t pid = simpleengine::util::get_current_pid();
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handle |= num;
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handle |= (pid << 16);
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std::string binary = std::bitset<16>(num).to_string();
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std::cout << "Entity handle: " << binary << std::endl;
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} */
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Entity(std::vector<std::shared_ptr<Component>> components) : Entity() {
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this->components = components;
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}
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uint32_t get_handle() {
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return handle;
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}
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virtual void update(const float& delta_time) override {
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std::cout << "Update entity" << std::endl;
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for (auto& component : components) {
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component->update(delta_time);
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}
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rotate_y(delta_time * 10);
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}
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template<typename T>
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bool has_component() const {
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for (const auto& comp : components) {
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if (std::dynamic_pointer_cast<T>(comp)) {
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return true;
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}
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}
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return false;
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}
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template<typename T>
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std::shared_ptr<T> get_component() const {
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for (const auto& comp : components) {
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if (std::shared_ptr<T> dyn_comp = std::dynamic_pointer_cast<T>(comp); dyn_comp) {
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return dyn_comp;
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}
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}
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return nullptr;
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}
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template<typename T>
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void add_component(std::shared_ptr<T> component) {
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static_assert(std::is_base_of_v<Component, T>, "Component class must derive from simpleengine::Component");
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// Only allow one type of the same component
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assert(!has_component<T>()); // TODO: Don't assert, give an error
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components.push_back(component);
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}
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template<typename T>
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void add_component(T component) {
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static_assert(std::is_base_of_v<Component, T>, "Component class must derive from simpleengine::Component");
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// Only allow one type of the same component
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assert(!has_component<T>()); // TODO: Don't assert, give an error
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components.push_back(std::make_shared<T>(component));
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}
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};
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} |