Add zombo hp bar

src/Game.cpp

@@ -55,9 +55,12 @@ void Game::update(std::stop_token stop_token)
 					arrow.x > zombo.x && arrow.x < zombo.x + zombo_sprite->width &&
 					arrow.y > zombo.y && arrow.y < zombo.y + zombo_sprite->height
 				) {
+					zombo.hp--;
+					zombo.x += std::cos(arrow.angle) * 8;
+					zombo.y += std::sin(arrow.angle) * 8;
+
 					std::erase(arrows, arrow);
 
-					zombo.hp--;
 					if (zombo.hp == 0) {
 						std::erase(zombos, zombo);
 						player.gold += 10;
@@ -159,7 +162,7 @@ void Game::run()
 
 		if (e.type == SDL_MOUSEBUTTONDOWN && e.button.button == 1 && player.shooting_cooldown == 0) {
 			arrows.emplace_back(player.x, player.y, player.angle);
-			player.shooting_cooldown = 40;
+			player.shooting_cooldown = 20;
 		}
 
 		int mouse_x, mouse_y;

src/GameRenderer.cpp

@@ -89,6 +89,14 @@ void GameRenderer::draw_sprite_rotated(const Sprite &sprite, const int x, const
 	SDL_RenderCopyEx(renderer, sprite.texture, nullptr, &rect, angle, nullptr, SDL_FLIP_NONE);
 }
 
+void GameRenderer::draw_rect(int x, int y, int width, int height, Color color) const
+{
+	SDL_SetRenderDrawColor(renderer, color.r, color.g, color.b, color.a);
+
+	const SDL_Rect rect = { .x = x, .y = y, .w = width, .h = height };
+	SDL_RenderFillRect(renderer, &rect);
+}
+
 void GameRenderer::clear_screen(Color color) const
 {
 	SDL_SetRenderDrawColor(renderer, color.r, color.g, color.b, color.a);

src/GameRenderer.hpp

@@ -40,6 +40,8 @@ public:
 
 	void draw_sprite_rotated(const Sprite &sprite, int x, int y, double angle) const;
 
+	void draw_rect(int x, int y, int width, int height, Color color) const;
+
 	void clear_screen(Color color) const;
 
 	void flush() const;

src/Zombo.cpp

@@ -33,4 +33,9 @@ void Zombo::draw(const GameRenderer *renderer, const Sprite &sprite, double play
 		renderer->draw_sprite(sprite, draw_x, draw_y);
 	else
 		renderer->draw_sprite_flipped(sprite, draw_x, draw_y);
+
+	if (hp < max_hp) {
+		renderer->draw_rect(draw_x, draw_y - 10, sprite.width, 5, rgb(0, 0, 0));
+		renderer->draw_rect(draw_x, draw_y - 10, hp * sprite.width / max_hp, 5, rgb(255, 0, 0));
+	}
 }

src/Zombo.hpp

@@ -9,8 +9,9 @@ class Zombo
 public:
 	double x;
 	double y;
-	int hp = 3;
+	int hp = max_hp;
 
+	static constexpr int max_hp = 3;
 	static constexpr double speed = 0.5;
 
 	Zombo(const GameRenderer *renderer, const Sprite &sprite, double player_x, double player_y);