button press and blinking led on a button press

semestralka1/src/game/collision.h

@@ -13,7 +13,6 @@ struct Obstacle {
     int height;
 };
 
-// Axis-aligned bounding-box collision
 inline bool check_collision(const CharacterPosition& player,
                             MovementType movement,
                             const Obstacle& obs) {

semestralka1/src/game/state.cpp

@@ -102,10 +102,10 @@ void MovementState::update() {
 }
 
 void MovementState::start_crawl(PlayerState crawl_type) {
-  if (crawl_type != PlayerState::Crawl1 && crawl_type != PlayerState::Crawl2)
-    return;
-
+  if (current_state != PlayerState::Crawl1 && current_state != PlayerState::Crawl2) {
 	  previous_state = current_state;
+  }
+
   current_state = crawl_type;
   state_timer.stop();
   state_timer.reset();

semestralka1/src/hardware/button.cpp

@@ -0,0 +1,33 @@
+// src/hardware/button.cpp
+#include "button.h"
+
+ButtonHandler::ButtonHandler(PinName pin, PinName led_pin) : button(pin), led(led_pin, 0) {
+  // ISR for button press (falling edge)
+  button.fall(callback(this, &ButtonHandler::on_pressed));
+}
+
+void ButtonHandler::on_pressed() {
+  pressed_flag = true;
+}
+
+ButtonEvent ButtonHandler::poll() {
+  static Timer blink_timer;
+  static bool blinking = false;
+
+  if (pressed_flag) {
+    pressed_flag = false;
+    led = 1;
+    blink_timer.reset();
+    blink_timer.start();
+    blinking = true;
+    return ButtonEvent::Pressed;
+  }
+
+  if (blinking && blink_timer.elapsed_time() >= 500ms) {
+    led = 0;
+    blink_timer.stop();
+    blinking = false;
+  }
+
+  return ButtonEvent::None;
+}

semestralka1/src/hardware/button.h

@@ -0,0 +1,23 @@
+// src/hardware/button.h
+#pragma once
+#include "mbed.h"
+
+enum class ButtonEvent {
+  None = 0,
+  Pressed = 1,
+};
+
+class ButtonHandler {
+private:
+  InterruptIn button;
+  DigitalOut led;
+  volatile bool pressed_flag = false;
+  volatile bool blink_flag = false;
+
+  void on_pressed();
+
+public:
+  ButtonHandler(PinName pin = BUTTON1, PinName led_pin = LED1);
+
+  ButtonEvent poll();
+};

semestralka1/src/hardware/uart.cpp

@@ -1,49 +0,0 @@
-// src/hardware/uart.cpp
-#include "uart.h"
-#include <cstring>
-
-UartReader::UartReader(BufferedSerial &serial) : serial_port(serial) {
-  memset(rx_buffer, 0, sizeof(rx_buffer));
-  memset(message, 0, sizeof(message));
-}
-
-UartEvent UartReader::poll() {
-  bool changed = false;
-  bool triggered = false;
-
-  // cita spravu z uartu
-  if (serial_port.readable()) {
-    memset(rx_buffer, 0, sizeof(rx_buffer));
-    ssize_t num = serial_port.read(rx_buffer, sizeof(rx_buffer) - 1);
-    if (num > 0) {
-      strncpy(message, rx_buffer, sizeof(message) - 1);
-      message_active = true;
-      changed = true;
-      triggered = true;
-    }
-  }
-
-  // casovac na 1s zobrazenia spravy
-  if (!timer_started) {
-    msg_timer.start();
-    timer_started = true;
-  }
-
-  // po jednu sekundu sa sprava zobrazi
-  if (message_active && msg_timer.elapsed_time() > MESSAGE_DISPLAY_DURATION) {
-    message_active = false;
-    memset(message, 0, sizeof(message));
-    msg_timer.reset();
-    changed = true;
-  }
-
-  if (triggered)
-    return UartEvent::Triggered;
-  if (changed)
-    return UartEvent::MessageUpdate;
-  return UartEvent::NoChange;
-}
-
-const char* UartReader::get_message() const {
-  return message_active ? message : nullptr;
-}

semestralka1/src/hardware/uart.h

@@ -1,35 +0,0 @@
-// src/hardware/uart.h
-#pragma once
-#include "mbed.h"
-#include <cstddef>
-
-constexpr size_t UART_BUFFER_SIZE = 64;
-constexpr auto MESSAGE_DISPLAY_DURATION = 1s;
-
-enum class UartEvent {
-  NoChange = 0,      // No new data
-  MessageUpdate = 1, // Message changed (received or expired)
-  Triggered = 2      // New message received (trigger action)
-};
-
-class UartReader {
-private:
-  BufferedSerial &serial_port;
-  
-  char rx_buffer[UART_BUFFER_SIZE];
-  char message[UART_BUFFER_SIZE];
-  bool message_active = false;
-  
-  Timer msg_timer;
-  bool timer_started = false;
-
-public:
-  UartReader(BufferedSerial &serial);
-  
-  // Poll for UART events
-  UartEvent poll();
-  
-  // Get current message (nullptr if no active message)
-  const char* get_message() const;
-  bool has_message() const { return message_active; }
-};

semestralka1/src/render/background.cpp

@@ -5,7 +5,7 @@
 #include <cstdio>
 #include <cstring>
 
-void draw_mask(const char *unused_filename, int shift, const char *text) {
+void draw_mask(const char *unused_filename, int shift) {
     // Terminal clear + home
     printf("\033[2J\033[H");
 
@@ -25,9 +25,5 @@ void draw_mask(const char *unused_filename, int shift, const char *text) {
         printf("\r\n");
     }
 
-    if (text && text[0] != '\0') {
-        printf("\r\n[RX] %s\r\n", text);
-    }
-
     fflush(stdout);
 }

semestralka1/src/render/background.h

@@ -4,4 +4,4 @@
 constexpr int VIEW_WIDTH = 90;
 
 // Draws the ASCII art background with optional message
-void draw_mask(const char *unused_filename, int shift, const char *text = nullptr);
+void draw_mask(const char *unused_filename, int shift);

semestralka1/src/render/loop.cpp

@@ -5,17 +5,17 @@
 #include "background.h"
 #include "mbed.h"
 #include "player.h"
+#include "background.h"
 #include "../game/state.h"
 #include "../game/animation.h"
 #include "../game/collision.h"
-#include "../hardware/uart.h"
+#include "../hardware/button.h"
 #include "../render/player.h"
 #include "../render/obstacle.h"
 #include "../timing/speed_controller.h"
 #include "../timing/movement_controller.h"
 #include "../game/obstacle_system.h"
 
-extern BufferedSerial serial_port;
 extern DigitalOut led;
 
 // Constants
@@ -23,12 +23,10 @@ extern DigitalOut led;
 constexpr int PLAYER_X = 29;
 constexpr int PLAYER_Y = 6;
 
-void draw_mask(const char *unused_filename, int shift, const char *text);
-
 void render_loop(int speed) {
   MovementState player_state;
   AnimationController animation;
-  UartReader uart(serial_port);
+  ButtonHandler button;
   MovementController mover(PLAYER_X, VIEW_WIDTH);
   SpeedController timing;
   timing.set_ground_speed(speed);
@@ -43,7 +41,7 @@ void render_loop(int speed) {
   int player_speed = 6;
   bool game_over = false;
 
-  player_state.set_state(PlayerState::Run);
+  player_state.set_state(PlayerState::Walk);
 
   CrawlObstacleType type = CrawlObstacleType::Crawl1;
   int start_x = VIEW_WIDTH + 10;
@@ -69,19 +67,14 @@ void render_loop(int speed) {
     }
 
     need_redraw = false;
-    UartEvent uart_event = uart.poll();
+    ButtonEvent button_event = button.poll();
 
-    if (uart_event == UartEvent::MessageUpdate) {
-      need_redraw = true;
-    }
-
-    if (uart_event == UartEvent::Triggered) {
+    if (button_event == ButtonEvent::Pressed) {
       PlayerState current = player_state.get_state();
 
       if (current == PlayerState::Walk || current == PlayerState::Run) {
         player_state.start_crawl(PlayerState::Crawl1);
-      }
-      else if (current == PlayerState::Crawl1) {
+      } else if (current == PlayerState::Crawl1) {
         player_state.start_crawl(PlayerState::Crawl2);
       }
 
@@ -108,7 +101,7 @@ void render_loop(int speed) {
 
     if (need_redraw) {
       player_state.toggle_walk_frame(player_speed, anim_tick_counter);
-      draw_mask(bg_file, animation.get_shift(), uart.get_message());
+      draw_mask(bg_file, animation.get_shift());
       FrameSelection frame = player_state.get_frame_selection();
 
       CharacterPosition draw_pos = get_aligned_frame_position(pos, frame.movement, frame.frame_index);