Fix inputs and add methods

include/app/app.h

@@ -180,6 +180,8 @@ struct Scene {
       element_pool[id]->click();
   }
 
+#warning "This does not take rotation into account \
+reference and use reverse-transform on point then AABB check instead"
   std::vector<uint64_t> elements_at(Vec2<float> position) {
     std::vector<uint64_t> result;
 
@@ -211,6 +213,11 @@ struct App {
   uint64_t current_scene_id = 0;
   bool running = true;
   Vec2<float> mouse_position = {-1, -1};
+  std::array<bool, 600> down_keys{};
+  std::vector<Key> pressed_keys;
+  std::vector<Key> released_keys;
+  Vec2<float> scroll = {0, 0};
+  std::string text = "";
 
   void exit() {
     running = false;
@@ -246,6 +253,11 @@ struct App {
 
       Scene *scene = scene_pool[current_scene_id];
 
+      pressed_keys.clear();
+      released_keys.clear();
+      scroll = {0, 0};
+      text = "";
+
       Event e;
       while (window.poll(e)) {
         switch (e.type) {
@@ -254,6 +266,12 @@ struct App {
           break;
         case Event::MOUSE_BUTTON_DOWN:
           scene->click(e.mouse_button.position);
+          down_keys[e.mouse_button.button] = true;
+          pressed_keys.push_back(e.mouse_button.button);
+          break;
+        case Event::MOUSE_BUTTON_UP:
+          down_keys[e.mouse_button.button] = false;
+          released_keys.push_back(e.mouse_button.button);
           break;
         case Event::MOUSE_MOVE:
           mouse_position = e.mouse_move.position;
@@ -261,10 +279,24 @@ struct App {
         case Event::MOUSE_LEAVE:
           mouse_position = {-1, -1};
           break;
+        case Event::KEY_DOWN:
+          down_keys[e.key.key] = true;
+          pressed_keys.push_back(e.key.key);
+          break;
+        case Event::KEY_UP:
+          down_keys[e.key.key] = false;
+          released_keys.push_back(e.key.key);
+          break;
+        case Event::SCROLL:
+          scroll = e.scroll;
+          break;
+        case Event::TEXT_INPUT:
+          text += *e.text_input;
+          delete e.text_input;
+          break;
         default:
           break;
         }
-        window.consume(e);
       }
 
       scene->update_scene(dt);

include/binding/definitions.h

@@ -134,6 +134,16 @@ static mrb_value image_hash(mrb_state *mrb, mrb_value self) {
   return mrb_fixnum_value(id);
 }
 
+static mrb_value image_width(mrb_state *mrb, mrb_value self) {
+  uint64_t id = get_id_Image(mrb, self);
+  return mrb_float_value(mrb, window.get_image_size(id).x);
+}
+
+static mrb_value image_height(mrb_state *mrb, mrb_value self) {
+  uint64_t id = get_id_Image(mrb, self);
+  return mrb_float_value(mrb, window.get_image_size(id).y);
+}
+
 static void Animation_free(mrb_state *mrb, void *ptr) {
   UNUSED(mrb);
   uint64_t id = ((Wrapper *)ptr)->id;
@@ -578,6 +588,18 @@ static mrb_value element_text_click_through_set(mrb_state *mrb, mrb_value self)
   return mrb_nil_value();
 }
 
+static mrb_value element_text_width(mrb_state *mrb, mrb_value self) {
+  uint64_t id = get_id_ElementText(mrb, self);
+  app::EText *element = (app::EText *)app::element_pool[id];
+  return mrb_float_value(mrb, element->size(&window).x);
+}
+
+static mrb_value element_text_height(mrb_state *mrb, mrb_value self) {
+  uint64_t id = get_id_ElementText(mrb, self);
+  app::EText *element = (app::EText *)app::element_pool[id];
+  return mrb_float_value(mrb, element->size(&window).y);
+}
+
 static void ElementRect_free(mrb_state *mrb, void *ptr) {
   UNUSED(mrb);
   uint64_t id = ((Wrapper *)ptr)->id;
@@ -1413,6 +1435,58 @@ static mrb_value app_mouse_position(mrb_state *mrb, mrb_value) {
   return result;
 }
 
+static mrb_value app_is_down(mrb_state *mrb, mrb_value) {
+  mrb_sym key_sym;
+  mrb_get_args(mrb, "n", &key_sym);
+  std::string key_name = mrb_sym2name(mrb, key_sym);
+  Key key = get_key(key_name);
+  return mrb_bool_value(app_->down_keys[key]);
+}
+
+static mrb_value app_is_pressed(mrb_state *mrb, mrb_value) {
+  mrb_sym key_sym;
+  mrb_get_args(mrb, "n", &key_sym);
+  std::string key_name = mrb_sym2name(mrb, key_sym);
+  Key key = get_key(key_name);
+  for (Key pressed_key : app_->pressed_keys)
+    if (pressed_key == key)
+      return mrb_bool_value(true);
+  return mrb_bool_value(false);
+}
+
+static mrb_value app_is_released(mrb_state *mrb, mrb_value) {
+  mrb_sym key_sym;
+  mrb_get_args(mrb, "n", &key_sym);
+  std::string key_name = mrb_sym2name(mrb, key_sym);
+  Key key = get_key(key_name);
+  for (Key released_key : app_->released_keys)
+    if (released_key == key)
+      return mrb_bool_value(true);
+  return mrb_bool_value(false);
+}
+
+static mrb_value app_map_key(mrb_state *mrb, mrb_value) {
+  mrb_sym key_sym;
+  mrb_sym action_sym;
+  mrb_get_args(mrb, "nn", &key_sym, &action_sym);
+  std::string key_name = mrb_sym2name(mrb, key_sym);
+  std::string action_name = mrb_sym2name(mrb, action_sym);
+  set_action_mapping(action_name, key_name);
+  return mrb_nil_value();
+}
+
+static mrb_value app_scroll(mrb_state *mrb, mrb_value) {
+  Vec2<float> scroll = app_->scroll;
+  mrb_value result = mrb_hash_new(mrb);
+  HASH_SET(result, x, mrb_float_value(mrb, scroll.x));
+  HASH_SET(result, y, mrb_float_value(mrb, scroll.y));
+  return result;
+}
+
+static mrb_value app_text_input(mrb_state *mrb, mrb_value) {
+  return mrb_str_new_cstr(mrb, app_->text.c_str());
+}
+
 static mrb_value app_exit(mrb_state *, mrb_value) {
   app_->exit();
   return mrb_nil_value();
@@ -1428,6 +1502,8 @@ inline void setup() {
   ADD_METHOD(Image, "==", image_equal, MRB_ARGS_REQ(1));
   ADD_METHOD(Image, "eql?", image_equal, MRB_ARGS_REQ(1));
   ADD_METHOD(Image, "hash", image_hash, MRB_ARGS_NONE());
+  ADD_METHOD(Image, "width", image_width, MRB_ARGS_NONE());
+  ADD_METHOD(Image, "height", image_height, MRB_ARGS_NONE());
 
   DEF_CLASS(Animation, MRB_ARGS_REQ(1) | MRB_ARGS_OPT(1));
   ADD_METHOD(Animation, "==", animation_equal, MRB_ARGS_REQ(1));
@@ -1463,6 +1539,8 @@ inline void setup() {
   ADD_METHOD(ElementText, "z", element_text_z_get, MRB_ARGS_NONE());
   ADD_METHOD(ElementText, "click_through=", element_text_click_through_set, MRB_ARGS_REQ(1));
   ADD_METHOD(ElementText, "click_through", element_text_click_through_get, MRB_ARGS_NONE());
+  ADD_METHOD(ElementText, "width", element_text_width, MRB_ARGS_NONE());
+  ADD_METHOD(ElementText, "height", element_text_height, MRB_ARGS_NONE());
 
   DEF_CLASS(ElementRect, MRB_ARGS_REQ(3) | MRB_ARGS_OPT(1));
   ADD_METHOD(ElementRect, "==", element_rect_equal, MRB_ARGS_REQ(1));
@@ -1527,7 +1605,13 @@ inline void setup() {
   ADD_MODULE_METHOD(App, "language=", app_language_set, MRB_ARGS_REQ(1));
   ADD_MODULE_METHOD(App, "language", app_language_get, MRB_ARGS_NONE());
   ADD_MODULE_METHOD(App, "mouse_position", app_mouse_position, MRB_ARGS_NONE());
-  ADD_MODULE_METHOD(App, "exit", app_exit, MRB_ARGS_NONE());
+  ADD_MODULE_METHOD(App, "down?", app_is_down, MRB_ARGS_REQ(1));
+  ADD_MODULE_METHOD(App, "pressed?", app_is_pressed, MRB_ARGS_REQ(1));
+  ADD_MODULE_METHOD(App, "released?", app_is_released, MRB_ARGS_REQ(1));
+  ADD_MODULE_METHOD(App, "map_key", app_map_key, MRB_ARGS_REQ(2));
+  ADD_MODULE_METHOD(App, "scroll", app_scroll, MRB_ARGS_NONE());
+  ADD_MODULE_METHOD(App, "text_input", app_text_input, MRB_ARGS_NONE());
+  ADD_MODULE_METHOD(App, "exit!", app_exit, MRB_ARGS_NONE());
 }
 } // namespace definitions
 

include/window/window.h

@@ -40,6 +40,220 @@ inline Pool<Font> font_pool;
 // Text pool
 inline Pool<Text> text_pool;
 
+enum Key : uint16_t {
+  Unknown = SDL_SCANCODE_UNKNOWN,
+
+  A = SDL_SCANCODE_A,
+  B,
+  C,
+  D,
+  E,
+  F,
+  G,
+  H,
+  I,
+  J,
+  K,
+  L,
+  M,
+  N,
+  O,
+  P,
+  Q,
+  R,
+  S,
+  T,
+  U,
+  V,
+  W,
+  X,
+  Y,
+  Z,
+
+  Num0 = SDL_SCANCODE_0,
+  Num1,
+  Num2,
+  Num3,
+  Num4,
+  Num5,
+  Num6,
+  Num7,
+  Num8,
+  Num9,
+
+  Space = SDL_SCANCODE_SPACE,
+  Enter = SDL_SCANCODE_RETURN,
+  Escape = SDL_SCANCODE_ESCAPE,
+  Tab = SDL_SCANCODE_TAB,
+  Backspace = SDL_SCANCODE_BACKSPACE,
+
+  LeftShift = SDL_SCANCODE_LSHIFT,
+  RightShift = SDL_SCANCODE_RSHIFT,
+  LeftCtrl = SDL_SCANCODE_LCTRL,
+  RightCtrl = SDL_SCANCODE_RCTRL,
+  LeftAlt = SDL_SCANCODE_LALT,
+  RightAlt = SDL_SCANCODE_RALT,
+  CapsLock = SDL_SCANCODE_CAPSLOCK,
+
+  Up = SDL_SCANCODE_UP,
+  Down = SDL_SCANCODE_DOWN,
+  Left = SDL_SCANCODE_LEFT,
+  Right = SDL_SCANCODE_RIGHT,
+  Home = SDL_SCANCODE_HOME,
+  End = SDL_SCANCODE_END,
+  PageUp = SDL_SCANCODE_PAGEUP,
+  PageDown = SDL_SCANCODE_PAGEDOWN,
+
+  Delete = SDL_SCANCODE_DELETE,
+  Insert = SDL_SCANCODE_INSERT,
+
+  Minus = SDL_SCANCODE_MINUS,
+  Equals = SDL_SCANCODE_EQUALS,
+  LeftBracket = SDL_SCANCODE_LEFTBRACKET,
+  RightBracket = SDL_SCANCODE_RIGHTBRACKET,
+  Semicolon = SDL_SCANCODE_SEMICOLON,
+  Apostrophe = SDL_SCANCODE_APOSTROPHE,
+  Grave = SDL_SCANCODE_GRAVE,
+  Comma = SDL_SCANCODE_COMMA,
+  Period = SDL_SCANCODE_PERIOD,
+  Slash = SDL_SCANCODE_SLASH,
+  Backslash = SDL_SCANCODE_NONUSBACKSLASH,
+
+  F1 = SDL_SCANCODE_F1,
+  F2,
+  F3,
+  F4,
+  F5,
+  F6,
+  F7,
+  F8,
+  F9,
+  F10,
+  F11,
+  F12,
+
+  MouseLeft = 513,
+  MouseMiddle,
+  MouseRight
+};
+
+constexpr std::pair<std::string, Key> KEY_NAMES[] = {
+  {"a", Key::A},
+  {"b", Key::B},
+  {"c", Key::C},
+  {"d", Key::D},
+  {"e", Key::E},
+  {"f", Key::F},
+  {"g", Key::G},
+  {"h", Key::H},
+  {"i", Key::I},
+  {"j", Key::J},
+  {"k", Key::K},
+  {"l", Key::L},
+  {"m", Key::M},
+  {"n", Key::N},
+  {"o", Key::O},
+  {"p", Key::P},
+  {"q", Key::Q},
+  {"r", Key::R},
+  {"s", Key::S},
+  {"t", Key::T},
+  {"u", Key::U},
+  {"v", Key::V},
+  {"w", Key::W},
+  {"x", Key::X},
+  {"y", Key::Y},
+  {"z", Key::Z},
+
+  {"num0", Key::Num0},
+  {"num1", Key::Num1},
+  {"num2", Key::Num2},
+  {"num3", Key::Num3},
+  {"num4", Key::Num4},
+  {"num5", Key::Num5},
+  {"num6", Key::Num6},
+  {"num7", Key::Num7},
+  {"num8", Key::Num8},
+  {"num9", Key::Num9},
+
+  {"space", Key::Space},
+  {"enter", Key::Enter},
+  {"escape", Key::Escape},
+  {"tab", Key::Tab},
+  {"backspace", Key::Backspace},
+
+  {"left_shift", Key::LeftShift},
+  {"right_shift", Key::RightShift},
+  {"left_ctrl", Key::LeftCtrl},
+  {"right_ctrl", Key::RightCtrl},
+  {"left_alt", Key::LeftAlt},
+  {"right_alt", Key::RightAlt},
+  {"capslock", Key::CapsLock},
+
+  {"up", Key::Up},
+  {"down", Key::Down},
+  {"left", Key::Left},
+  {"right", Key::Right},
+  {"home", Key::Home},
+  {"end", Key::End},
+  {"page_up", Key::PageUp},
+  {"page_down", Key::PageDown},
+
+  {"delete", Key::Delete},
+  {"insert", Key::Insert},
+
+  {"minus", Key::Minus},
+  {"equals", Key::Equals},
+  {"left_bracket", Key::LeftBracket},
+  {"right_bracket", Key::RightBracket},
+  {"semicolon", Key::Semicolon},
+  {"apostrophe", Key::Apostrophe},
+  {"grave", Key::Grave},
+  {"comma", Key::Comma},
+  {"period", Key::Period},
+  {"slash", Key::Slash},
+  {"backslash", Key::Backslash},
+
+  {"f1", Key::F1},
+  {"f2", Key::F2},
+  {"f3", Key::F3},
+  {"f4", Key::F4},
+  {"f5", Key::F5},
+  {"f6", Key::F6},
+  {"f7", Key::F7},
+  {"f8", Key::F8},
+  {"f9", Key::F9},
+  {"f10", Key::F10},
+  {"f11", Key::F11},
+  {"f12", Key::F12},
+
+  {"mouse_left", Key::MouseLeft},
+  {"mouse_middle", Key::MouseMiddle},
+  {"mouse_right", Key::MouseRight}
+};
+
+inline Key get_key_from_name(std::string_view name) {
+  for (const auto &[key_name, key] : KEY_NAMES)
+    if (key_name == name)
+      return key;
+  return Key::Unknown;
+}
+
+inline std::unordered_map<std::string, Key> action_key_map;
+
+inline void set_action_mapping(const std::string &action_name, const std::string &key_name) {
+  Key key = get_key_from_name(key_name);
+  if (key != Key::Unknown)
+    action_key_map[action_name] = key;
+}
+
+inline Key get_key(std::string &name) {
+  auto it = action_key_map.find(name);
+  if (it != action_key_map.end())
+    return it->second;
+  return get_key_from_name(name);
+}
+
 struct Event {
   enum Type {
     NONE,
@@ -56,20 +270,15 @@ struct Event {
 
   union {
     struct {
-      uint32_t key;
+      Key key;
     } key;
 
-    struct {
-      char *text;
-      uint32_t length;
-    } text_input;
+    std::string *text_input;
+
+    Vec2<float> scroll;
 
     struct {
-      float x, y;
-    } scroll;
-
-    struct {
-      uint8_t button;
+      Key button;
       Vec2<float> position;
     } mouse_button;
 
@@ -125,16 +334,6 @@ public:
 
   bool poll(Event &event); // returns true if an event was polled, false otherwise
 
-  // consumes an event, (mostly for text input, to free the text input buffer)
-  // but also so the user can decide when they're done with the event explicitly.
-  void consume(Event &event);
-
-  // Text input
-  // Starts accepting Unicode text input events, and stops acceptong normal key down/up events for those keys.
-
-  void start_text_input();
-  void stop_text_input();
-
   // Clipboard get
 
   // To be free'd by the caller after use.
@@ -190,8 +389,6 @@ private:
 
   std::vector<struct RenderInstruction> render_instructions;
 
-  bool text_input_active;
-
   void compute_transform();
 
   bool mouse_in_window(const Vec2<float> real_position, Vec2<float> &virtual_position);

samples/button.rb

@@ -12,7 +12,7 @@ bg_animation = Animation.new [bg_image1, bg_image2], fps: 5
 App.language = :en
 App.localize(:en, :btn_text, "Click %{name}!")
 
-text = ElementText.new :btn_text, default_font, 0xFFFFFF, {name: "Me"}, position: {x: 50, y: 50}, z: 1, click_through: true, alpha: 1
+text = ElementText.new :btn_text, default_font, 0xFFFF00, {name: "Me"}, position: {x: 50, y: 50}, z: 1, click_through: true, alpha: 1
 
 rect = ElementRect.new 100, 25, 0xFF0000, position: {x: 50, y: 50}, z: 0, rotation: 60, scale: { x: 1.5, y: 1 }, alpha: 0.4
 
@@ -28,40 +28,7 @@ rect.on_click do
   text.params!
 end
 
-
-=begin
-
-input handling:
-
-App.map_key(:space, :jump) # maps the space key to a :jump action (multiple keys can be mapped to the same action)
-# all events here are in english ones, (so need to find which english key corresponds to the key in the current language of the keyboard)
-key can be one of [:a..:z, :0..:9, :space, :enter, :shift, :ctrl, :alt, :tab, :backspace, :escape, :up, :down, :left, :right, :middle]
-
-this can be checked anywhere using:
-
-App.down?(:jump) # returns true if the jump action is currently being pressed
-App.pressed?(:jump) # returns true if the jump action was just pressed this frame
-App.released?(:jump) # returns true if the jump action was just released this frame
-
-for wheel, you can use:
-
-App.wheel # returns a hash with :x and :y values representing the wheel movement since the last frame (can be used for zooming, scrolling, etc.)
-
-mouse position can be accessed with:
-
-App.mouse_position # returns a hash with :x and :y values representing the current mouse position in the window
-
-For localized input, you can use:
-
-App.start_text_input!
-
-App.text_input # returns the text typed this frame as a string (useful for text input fields, chat, etc.)
-               # can be multiple characters if the user types fast, so you should append it to a string variable to get the full input
-
-App.stop_text_input!
-
-
-=end
+App.map_key :mouse_left, :press
 
 main_scene.on_update do |delta_time|
   # puts "Delta time: #{delta_time}ms"
@@ -69,13 +36,20 @@ main_scene.on_update do |delta_time|
   # runs at 60fps, so you should see around 16-17ms being printed
 
   el = main_scene.elements_at(App.mouse_position)
+
+  puts App.text_input if App.text_input != ""
+
+  next unless App.pressed?(:press)
+  
+  puts "#{App.pressed?(:press)}, #{App.down?(:press)}, #{App.released?(:press)}"
+
   for elem in el
     if elem == image_element
-      #puts "Hovering over image element"
+      puts "Down over image element"
     elsif elem == rect
-      #puts "Hovering over rect element"
+      puts "Down over rect element"
     elsif elem == text
-      #puts "Hovering over text element"
+      puts "Down over text element"
     end
   end
 

src/window/window.cc

@@ -15,7 +15,7 @@ Window::Window(Vec2<float> size, const char *title) {
 
   compute_transform();
 
-  text_input_active = false;
+  SDL_StartTextInput(window);
 
   white_tex = SDL_CreateTexture(
     renderer,
@@ -370,22 +370,17 @@ bool Window::poll(Event &event) {
 
     case SDL_EVENT_KEY_DOWN:
       event.type = Event::KEY_DOWN;
-      event.key.key = sdl_event.key.scancode;
+      event.key.key = (Key)sdl_event.key.scancode;
       break;
 
     case SDL_EVENT_KEY_UP:
       event.type = Event::KEY_UP;
-      event.key.key = sdl_event.key.scancode;
+      event.key.key = (Key)sdl_event.key.scancode;
       break;
 
     case SDL_EVENT_TEXT_INPUT:
-      if (!text_input_active)
-        return false;
       event.type = Event::TEXT_INPUT;
-      event.text_input.length = strlen(sdl_event.text.text);
-      event.text_input.text = (char *)malloc(event.text_input.length + 1);
-      strcpy(event.text_input.text, sdl_event.text.text);
-      event.text_input.text[event.text_input.length] = '\0';
+      event.text_input = new std::string(sdl_event.text.text);
       break;
 
     case SDL_EVENT_WINDOW_MOUSE_LEAVE:
@@ -394,7 +389,7 @@ bool Window::poll(Event &event) {
 
     case SDL_EVENT_MOUSE_BUTTON_DOWN: {
       event.type = Event::MOUSE_BUTTON_DOWN;
-      event.mouse_button.button = sdl_event.button.button;
+      event.mouse_button.button = (Key)(sdl_event.button.button + 512);
       Vec2<float> virtual_position;
       if (mouse_in_window({sdl_event.button.x, sdl_event.button.y}, virtual_position))
         event.mouse_button.position = virtual_position;
@@ -404,7 +399,7 @@ bool Window::poll(Event &event) {
 
     case SDL_EVENT_MOUSE_BUTTON_UP: {
       event.type = Event::MOUSE_BUTTON_UP;
-      event.mouse_button.button = sdl_event.button.button;
+      event.mouse_button.button = (Key)(sdl_event.button.button + 512);
       Vec2<float> virtual_position;
       if (mouse_in_window({sdl_event.button.x, sdl_event.button.y}, virtual_position))
         event.mouse_button.position = virtual_position;
@@ -444,26 +439,6 @@ bool Window::poll(Event &event) {
   return false;
 }
 
-void Window::consume(Event &event) {
-  if (event.type == Event::TEXT_INPUT) {
-    free(event.text_input.text);
-    event.text_input.text = nullptr;
-    event.text_input.length = 0;
-  }
-
-  event.type = Event::NONE;
-}
-
-void Window::start_text_input() {
-  text_input_active = true;
-  SDL_StartTextInput(window);
-}
-
-void Window::stop_text_input() {
-  text_input_active = false;
-  SDL_StopTextInput(window);
-}
-
 const char *Window::paste() {
   const char *clipboard_text = SDL_GetClipboardText();
   if (clipboard_text == nullptr) {

tests/array_vs_hash.cc

@@ -0,0 +1,90 @@
+#include <algorithm>
+#include <chrono>
+#include <iostream>
+#include <random>
+#include <string>
+#include <unordered_map>
+#include <vector>
+
+using namespace std;
+using namespace std::chrono;
+
+int N = 1000000; // 1,000,000 tries
+int L = 20;      // string length
+
+string random_string(size_t length) {
+  static const string chars =
+    "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
+
+  static random_device rd;
+  static mt19937 gen(rd());
+
+  uniform_int_distribution<> dist(0, chars.size() - 1);
+
+  string s;
+
+  for (size_t i = 0; i < length; i++) {
+    s += chars[dist(gen)];
+  }
+
+  return s;
+}
+
+void test_array(int length) {
+  std::unordered_map<std::string, int> hash_map;
+  hash_map.reserve(length * 2); // Reserve more to avoid rehashing
+  std::vector<std::pair<std::string, int>> array;
+  array.reserve(length);
+
+  vector<string> keys;
+
+  for (int i = 0; i < length; ++i) {
+    string key = random_string(L);
+
+    keys.push_back(key);
+
+    hash_map[key] = i;
+    array.emplace_back(key, i);
+  }
+
+  auto start = std::chrono::high_resolution_clock::now();
+  for (int i = 0; i < N; ++i) {
+    string &key = keys[i % length];
+
+    auto it = hash_map.find(key);
+
+    volatile int value = it->second;
+    (void)value;
+  }
+  auto end = std::chrono::high_resolution_clock::now();
+  auto hash_duration = std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count();
+
+  start = std::chrono::high_resolution_clock::now();
+  for (int i = 0; i < N; ++i) {
+    string &key = keys[i % length];
+
+    auto it = std::find_if(array.begin(), array.end(), [&key](const auto &pair) {
+      return pair.first == key;
+    });
+
+    volatile int value = it->second;
+    (void)value;
+  }
+  end = std::chrono::high_resolution_clock::now();
+  auto array_duration = std::chrono::duration_cast<std::chrono::milliseconds>(end - start).count();
+
+  std::cout << length << "," << hash_duration << "," << array_duration << "\n";
+}
+
+int main() {
+  std::cout << "elements,hash,array\n";
+
+  for (int length = 1; length <= 10; length++)
+    test_array(length);
+  for (int length = 10; length <= 100; length += 10)
+    test_array(length);
+  for (int length = 100; length <= 1000; length += 100)
+    test_array(length);
+
+  return 0;
+}

tests/benchmark.csv

@@ -0,0 +1,31 @@
+elements,hash,array
+1,53,36
+2,57,49
+3,83,65
+4,99,84
+5,117,99
+6,132,115
+7,145,128
+8,163,141
+9,174,156
+10,191,167
+10,190,169
+20,339,306
+30,74,442
+40,71,579
+50,78,719
+60,74,874
+70,75,1064
+80,83,1244
+90,83,1394
+100,85,1477
+100,86,1485
+200,80,2912
+300,82,4401
+400,82,5946
+500,83,7526
+600,84,9256
+700,86,10927
+800,88,12828
+900,89,14502
+1000,90,16302

tests/grapher.py

@@ -0,0 +1,24 @@
+import pandas as pd
+import matplotlib.pyplot as plt
+
+df = pd.read_csv("benchmark.csv")
+
+plt.figure(figsize=(10, 6))
+
+plt.plot(df["elements"], df["hash"], marker='o', label="Hash map")
+plt.plot(df["elements"], df["array"], marker='o', label="Array")
+
+# LOG SCALE
+plt.xscale("log")
+plt.yscale("log")
+
+plt.xlabel("Number of elements (log scale)")
+plt.ylabel("Time (ms) (log scale)")
+plt.title("Array vs Hash Map Lookup Performance")
+
+plt.grid(True, which="both", linestyle="--", alpha=0.5)
+plt.legend()
+
+plt.show()
+
+plt.savefig("benchmark.png", dpi=200, bbox_inches="tight")