polished like a polish plates

semestralka1/src/assets/character_crawl_frames.h

@@ -40,3 +40,18 @@ static const int CHARACTER_CRAWL2_FRAME_COUNT = sizeof(CHARACTER_CRAWL2_FRAMES)
 // Height (rows per crawl frame)
 static const int CHARACTER_CRAWL1_FRAME_HEIGHT = sizeof(CRAWL1_FRAME_1) / sizeof(CRAWL1_FRAME_1[0]);
 static const int CHARACTER_CRAWL2_FRAME_HEIGHT = sizeof(CRAWL2_FRAME_1) / sizeof(CRAWL2_FRAME_1[0]);
+
+
+// Crawl1 collision box
+static const int CHARACTER_CRAWL1_FRAME_WIDTH = 8;
+static const int CHARACTER_CRAWL1_COLLISION_LEFT_OFFSET  = 1;
+static const int CHARACTER_CRAWL1_COLLISION_RIGHT_OFFSET = 1;
+static const int CHARACTER_CRAWL1_COLLISION_WIDTH = CHARACTER_CRAWL1_FRAME_WIDTH - (CHARACTER_CRAWL1_COLLISION_LEFT_OFFSET + CHARACTER_CRAWL1_COLLISION_RIGHT_OFFSET);
+static const int CHARACTER_CRAWL1_COLLISION_HEIGHT = CHARACTER_CRAWL1_FRAME_HEIGHT - 2;
+
+// Crawl2 collision box (lower posture - smaller collision height)
+static const int CHARACTER_CRAWL2_FRAME_WIDTH = 8;
+static const int CHARACTER_CRAWL2_COLLISION_LEFT_OFFSET  = 1;
+static const int CHARACTER_CRAWL2_COLLISION_RIGHT_OFFSET = 0;
+static const int CHARACTER_CRAWL2_COLLISION_WIDTH = CHARACTER_CRAWL2_FRAME_WIDTH - (CHARACTER_CRAWL2_COLLISION_LEFT_OFFSET + CHARACTER_CRAWL2_COLLISION_RIGHT_OFFSET);
+static const int CHARACTER_CRAWL2_COLLISION_HEIGHT = CHARACTER_CRAWL2_FRAME_HEIGHT - 4;

semestralka1/src/assets/character_run_frames.h

@@ -96,3 +96,11 @@ static const int CHARACTER_RUN_FRAME_COUNT = sizeof(CHARACTER_RUN_FRAMES) / size
 
 // Height (rows per run frame)
 static const int CHARACTER_RUN_FRAME_HEIGHT = sizeof(RUN_FRAME_1) / sizeof(RUN_FRAME_1[0]);
+
+static const int CHARACTER_RUN_COLLISION_HEIGHT = CHARACTER_RUN_FRAME_HEIGHT;
+
+static const int CHARACTER_RUN_FRAME_WIDTH = 8;
+static const int CHARACTER_RUN_COLLISION_LEFT_OFFSET  = 2;
+static const int CHARACTER_RUN_COLLISION_RIGHT_OFFSET = 2;
+// 8 je width a 2 zlava a 2 zprava
+static const int CHARACTER_RUN_COLLISION_WIDTH = CHARACTER_RUN_FRAME_WIDTH - (CHARACTER_RUN_COLLISION_LEFT_OFFSET + CHARACTER_RUN_COLLISION_RIGHT_OFFSET);

semestralka1/src/assets/character_walk_frames.h

@@ -96,3 +96,9 @@ static const int CHARACTER_WALK_FRAME_COUNT = sizeof(CHARACTER_WALK_FRAMES) / si
 
 // Height (rows per walk frame)
 static const int CHARACTER_WALK_FRAME_HEIGHT = sizeof(WALK_FRAME_1) / sizeof(WALK_FRAME_1[0]);
+
+static const int CHARACTER_WALK_FRAME_WIDTH = 6;
+static const int CHARACTER_WALK_COLLISION_LEFT_OFFSET  = 1;
+static const int CHARACTER_WALK_COLLISION_RIGHT_OFFSET = 1;
+// 8 je width a 2 zlava a 2 zprava
+static const int CHARACTER_WALK_COLLISION_WIDTH = CHARACTER_WALK_FRAME_WIDTH - (CHARACTER_WALK_COLLISION_LEFT_OFFSET + CHARACTER_WALK_COLLISION_RIGHT_OFFSET);

semestralka1/src/assets/obstacle_crawl_frames.h

@@ -0,0 +1,47 @@
+// src/assets/obstacle_crawl_frames.h
+#pragma once
+#include <cstring>
+
+// Crawl obstacle for CRAWL1 (2 lines tall)
+static const char *OBSTACLE_CRAWL1_FRAME[] = {
+    "#########",
+    ".######",
+    "..#####",
+    "..####",
+    "...###",
+    "...###"
+};
+
+// Crawl obstacle for CRAWL2 (4 lines tall)
+static const char *OBSTACLE_CRAWL2_FRAME[] = {
+    "###",
+    "###",
+    "###",
+    "###",
+    "###",
+    "###",
+    "###",
+    "###"
+};
+
+enum class CrawlObstacleType { Crawl1 = 0, Crawl2, COUNT };
+
+static const char **OBSTACLE_CRAWL_FRAMES[] = { OBSTACLE_CRAWL1_FRAME, OBSTACLE_CRAWL2_FRAME };
+
+// Crawl1 dimensions and collision
+static const int OBSTACLE_CRAWL1_FRAME_HEIGHT = sizeof(OBSTACLE_CRAWL1_FRAME) / sizeof(OBSTACLE_CRAWL1_FRAME[0]);
+static const int OBSTACLE_CRAWL1_FRAME_WIDTH = std::strlen(OBSTACLE_CRAWL1_FRAME[0]);
+static const int OBSTACLE_CRAWL1_COLLISION_LEFT_OFFSET = 3;
+static const int OBSTACLE_CRAWL1_COLLISION_RIGHT_OFFSET = 3;
+static const int OBSTACLE_CRAWL1_COLLISION_WIDTH = OBSTACLE_CRAWL1_FRAME_WIDTH - (OBSTACLE_CRAWL1_COLLISION_LEFT_OFFSET + OBSTACLE_CRAWL1_COLLISION_RIGHT_OFFSET);
+static const int OBSTACLE_CRAWL1_COLLISION_TOP_OFFSET = 4; // first 4 rows are just empty ('.')
+// collision box height = bottom 2 rows
+static const int OBSTACLE_CRAWL1_COLLISION_HEIGHT = 2;
+
+// Crawl2 dimensions and collision
+static const int OBSTACLE_CRAWL2_FRAME_HEIGHT = sizeof(OBSTACLE_CRAWL2_FRAME) / sizeof(OBSTACLE_CRAWL2_FRAME[0]);
+static const int OBSTACLE_CRAWL2_FRAME_WIDTH = std::strlen(OBSTACLE_CRAWL2_FRAME[0]);
+static const int OBSTACLE_CRAWL2_COLLISION_LEFT_OFFSET = 0;
+static const int OBSTACLE_CRAWL2_COLLISION_RIGHT_OFFSET = 0;
+static const int OBSTACLE_CRAWL2_COLLISION_WIDTH = OBSTACLE_CRAWL2_FRAME_WIDTH - (OBSTACLE_CRAWL2_COLLISION_LEFT_OFFSET + OBSTACLE_CRAWL2_COLLISION_RIGHT_OFFSET);
+static const int OBSTACLE_CRAWL2_COLLISION_HEIGHT = OBSTACLE_CRAWL2_FRAME_HEIGHT;

semestralka1/src/game/animation.h

@@ -14,7 +14,5 @@ public:
   
   // Update animation, returns true if redraw needed
   bool tick(int speed);
-  
-  // Getters
   int get_shift() const { return shift; }
 };

semestralka1/src/game/collision.h

@@ -0,0 +1,64 @@
+// src/game/collision.h
+#pragma once
+#include "../render/player_positioning.h"
+#include "../assets/character_walk_frames.h"
+#include "../assets/character_run_frames.h"
+#include "../assets/character_crawl_frames.h"
+
+struct Obstacle {
+    int x;
+    int y;
+    int width;
+    int height;
+};
+
+inline bool check_collision(const CharacterPosition& player,
+                            MovementType movement,
+                            const Obstacle& obs) {
+
+    // Player is given in bottom-based world coordinates (0 = bottom line)
+    const int player_x = player.x;
+    const int player_bottom = player.y;
+    int box_x = 0;
+    int box_w = 0;
+    int box_h = 0;
+
+    switch (movement) {
+    case MovementType::Walk:
+        box_x = player_x + CHARACTER_WALK_COLLISION_LEFT_OFFSET;
+        box_w = CHARACTER_WALK_COLLISION_WIDTH;
+        box_h = CHARACTER_WALK_FRAME_HEIGHT;
+        break;
+    case MovementType::Run:
+        box_x = player_x + CHARACTER_RUN_COLLISION_LEFT_OFFSET;
+        box_w = CHARACTER_RUN_COLLISION_WIDTH;
+        box_h = CHARACTER_RUN_COLLISION_HEIGHT;
+        break;
+    case MovementType::Crawl1:
+        box_x = player_x + CHARACTER_CRAWL1_COLLISION_LEFT_OFFSET;
+        box_w = CHARACTER_CRAWL1_COLLISION_WIDTH;
+        box_h = CHARACTER_CRAWL1_COLLISION_HEIGHT;
+        break;
+    case MovementType::Crawl2:
+        box_x = player_x + CHARACTER_CRAWL2_COLLISION_LEFT_OFFSET;
+        box_w = CHARACTER_CRAWL2_COLLISION_WIDTH;
+        box_h = CHARACTER_CRAWL2_COLLISION_HEIGHT;
+        break;
+    }
+
+    // Player bounding box
+    const int player_left = box_x;
+    const int player_right = player_left + box_w;
+    const int player_top = player_bottom + box_h;
+
+    // Obstacle bounding box
+    const int obs_left = obs.x;
+    const int obs_right = obs.x + obs.width;
+    const int obs_bottom = obs.y;
+    const int obs_top = obs_bottom + obs.height;
+
+    // Overlap check
+    bool horizontal = player_left < obs_right && player_right > obs_left;
+    bool vertical = player_bottom < obs_top && player_top > obs_bottom;
+    return horizontal && vertical;
+}

semestralka1/src/game/game_over.cpp

@@ -0,0 +1,48 @@
+// src/game/game_over.cpp
+#include "game_over.h"
+#include "mbed.h"
+#include "../render/background.h"
+#include "../assets/background_frame.h"
+#include "../hardware/button.h"
+#include <cstdio>
+
+void show_game_over_screen(int seconds, ButtonHandler& button) {
+    printf("\033[2J\033[H");
+
+    // 34 znakov vo vypise
+    const int box_width = 34;
+    const int start_col = (VIEW_WIDTH - box_width) / 2;
+
+    const int box_height = 6;
+    const int top_padding = (VIEW_HEIGHT - box_height) / 2;
+
+    // Empty rows
+    for (int i = 0; i < top_padding; i++) {
+        printf("\r\n");
+    }
+
+    for (int i = 0; i < start_col; i++) printf(" ");
+    printf("==================================\r\n");
+
+    for (int i = 0; i < start_col; i++) printf(" ");
+    printf("         G A M E   O V E R        \r\n");
+
+    for (int i = 0; i < start_col; i++) printf(" ");
+    printf("==================================\r\n");
+
+    for (int i = 0; i < start_col; i++) printf(" ");
+    printf("         Doba hry %d sekund.     \r\n", seconds);
+
+    for (int i = 0; i < start_col; i++) printf(" ");
+    printf("==================================\r\n");
+    for (int i = 0; i < start_col; i++) printf(" ");
+    printf("Stlacte 2x po sebe tlacidlo pre restart\r\n");
+
+    fflush(stdout);
+
+    while (button.poll() != ButtonEvent::Pressed)
+        ThisThread::sleep_for(25ms);
+
+    printf("\033[2J\033[H");
+    fflush(stdout);
+}

semestralka1/src/game/game_over.h

@@ -0,0 +1,8 @@
+// src/game/game_over.h
+#pragma once
+#include "mbed.h"
+#include "../hardware/button.h"
+
+// Displays GAME OVER message with elapsed time.
+// Takes a Timer that was measuring game duration.
+void show_game_over_screen(int seconds, ButtonHandler& button);

semestralka1/src/game/game_state.cpp

@@ -0,0 +1,6 @@
+
+// src/game/game_state.cpp
+#include "game_state.h"
+
+GameState g_state;
+Mutex g_state_mutex;

semestralka1/src/game/game_state.h

@@ -0,0 +1,36 @@
+// src/game/game_state.h
+#pragma once
+#include "mbed.h"
+#include "../render/player.h"
+#include "../render/player_positioning.h"
+#include "../assets/obstacle_crawl_frames.h"
+
+// POZOR JE Z OBSTACLE MANAGERA
+constexpr int MAX_RENDER_OBSTACLES = 6;
+
+struct ObstacleRenderData {
+    int x;
+    int y;
+    CrawlObstacleType type;
+    bool active;
+};
+
+// All data needed to render one frame
+struct GameState {
+    CharacterPosition player_pos;
+    MovementType movement;
+    int frame_index;
+    
+    int background_shift;
+    
+    int current_speed;
+    ObstacleRenderData obstacles[MAX_RENDER_OBSTACLES];
+    
+    int elapsed_seconds;
+    bool game_over;
+    bool need_redraw;
+};
+
+// Global shared
+extern GameState g_state;
+extern Mutex g_state_mutex;

semestralka1/src/game/obstacle_manager.h

@@ -0,0 +1,54 @@
+// src/game/obstacle_manager.h
+#pragma once
+#include "../game/collision.h"
+#include "../assets/obstacle_crawl_frames.h"
+#include "../assets/background_frame.h"
+
+struct MovingObstacle {
+    Obstacle data;
+    CrawlObstacleType type;
+    bool active;
+};
+
+constexpr int MAX_OBSTACLES = 6;
+static MovingObstacle obstacle_pool[MAX_OBSTACLES];
+
+// Create/reset obstacle
+inline int spawn_obstacle(CrawlObstacleType type, int x_start) {
+    for (int i = 0; i < MAX_OBSTACLES; i++) {
+        if (!obstacle_pool[i].active) {
+            obstacle_pool[i].active = true;
+            obstacle_pool[i].type = type;
+	    obstacle_pool[i].data.x = x_start;
+
+            obstacle_pool[i].data.width = (type == CrawlObstacleType::Crawl1) ? OBSTACLE_CRAWL1_COLLISION_WIDTH : OBSTACLE_CRAWL2_COLLISION_WIDTH;
+            obstacle_pool[i].data.height = (type == CrawlObstacleType::Crawl1) ? OBSTACLE_CRAWL1_COLLISION_HEIGHT : OBSTACLE_CRAWL2_COLLISION_HEIGHT;
+
+            // Default Y so that the character touches the top of the screen.
+            // We store Y as the bottom of the COLLISION BOX in bottom-based world coords.
+            int top_offset = 0;
+            if (type == CrawlObstacleType::Crawl1) {
+                top_offset = OBSTACLE_CRAWL1_COLLISION_TOP_OFFSET;
+            } else {
+                top_offset = 0;
+            }
+            const int i_bottom_of_collision = top_offset + obstacle_pool[i].data.height - 1;
+            // Top of screen in world coords is VIEW_HEIGHT - 1
+            const int collision_bottom_world_y = (VIEW_HEIGHT - 1) - i_bottom_of_collision;
+            obstacle_pool[i].data.y = collision_bottom_world_y;
+
+            return i;
+        }
+    }
+    return -1;
+}
+
+// Update X positions, mark inactive if offscreen
+inline void update_obstacles(int shift_speed) {
+    for (int i = 0; i < MAX_OBSTACLES; i++) {
+        if (!obstacle_pool[i].active) continue;
+        obstacle_pool[i].data.x -= shift_speed;
+        if (obstacle_pool[i].data.x + obstacle_pool[i].data.width < 0)
+            obstacle_pool[i].active = false;
+    }
+}

semestralka1/src/game/obstacle_system.h

@@ -0,0 +1,71 @@
+// src/game/obstacle_system.h
+#pragma once
+#include "obstacle_manager.h"
+#include "../render/player_positioning.h"
+#include "../assets/obstacle_crawl_frames.h"
+#include "collision.h"
+#include "mbed.h"
+
+inline int clamp_min(int a, int b) { return (a > b) ? a : b; }
+inline int clamp_max(int a, int b) { return (a < b) ? a : b; }
+
+// Handles spawning, movement, rendering, and collision of obstacles
+class ObstacleSystem {
+public:
+    ObstacleSystem() : tick_counter_(0), spawn_index_(0) {}
+
+    bool update_and_draw(const CharacterPosition &player_pos,
+                         MovementType player_movement) {
+        // Update timers, move existing obstacles
+        tick_counter_++;
+        if (tick_counter_ % UPDATE_INTERVAL == 0) {
+            update_obstacles(1);
+        }
+
+        // Periodically spawn new obstacle
+        if (tick_counter_ % SPAWN_EVERY_TICKS == 0) {
+            auto type = (spawn_index_++ % 2 == 0) ? CrawlObstacleType::Crawl1 : CrawlObstacleType::Crawl2;
+            const int w = (type == CrawlObstacleType::Crawl1) ? OBSTACLE_CRAWL1_FRAME_WIDTH : OBSTACLE_CRAWL2_FRAME_WIDTH;
+            spawn_obstacle(type, VIEW_WIDTH - w - 1);
+        }
+
+        // Draw n collision check
+        for (int i = 0; i < MAX_OBSTACLES; i++) {
+            if (!obstacle_pool[i].active)
+                continue;
+
+            const char **frame = nullptr;
+            int height = 0;
+            if (obstacle_pool[i].type == CrawlObstacleType::Crawl1) {
+                frame = OBSTACLE_CRAWL1_FRAME;
+                height = OBSTACLE_CRAWL1_FRAME_HEIGHT;
+            } else {
+                frame = OBSTACLE_CRAWL2_FRAME;
+                height = OBSTACLE_CRAWL2_FRAME_HEIGHT;
+            }
+
+            draw_clipped_obstacle(obstacle_pool[i], frame, height);
+
+            if (check_collision(player_pos, player_movement,
+                                obstacle_pool[i].data)) {
+                printf("\033[2J\033[H");
+                printf("GAME OVER\r\n");
+                return true;
+            }
+        }
+
+        return false;
+    }
+
+private:
+    static constexpr int SPAWN_EVERY_TICKS = 35;
+    static constexpr int UPDATE_INTERVAL = 1; // move obstacles each frame
+    int tick_counter_;
+    int spawn_index_;
+
+    static void draw_clipped_obstacle(const MovingObstacle &obs,
+                                      const char ** /*frame*/,
+                                      int /*frame_height*/) {
+        draw_obstacle(obs.data.x, obs.data.y, obs.type);
+    }
+};

semestralka1/src/game/state.cpp

@@ -91,19 +91,20 @@ static inline int compute_frame_index(int frame_count,
 }
 } // namespace
 
-void WalkingState::update() {
+void MovementState::update() {
   // stop crawling after duration
   if ((current_state == PlayerState::Crawl1 ||
       current_state == PlayerState::Crawl2) &&
       state_timer.elapsed_time() >= CRAWL_DURATION) {
-    current_state = PlayerState::Walk;
+    current_state = previous_state;
     state_timer.stop();
   }
 }
 
-void WalkingState::start_crawl(PlayerState crawl_type) {
+void MovementState::start_crawl(PlayerState crawl_type) {
-  if (crawl_type != PlayerState::Crawl1 && crawl_type != PlayerState::Crawl2)
+  if (current_state != PlayerState::Crawl1 && current_state != PlayerState::Crawl2) {
-    return;
+	  previous_state = current_state;
+  }
 
   current_state = crawl_type;
   state_timer.stop();
@@ -111,7 +112,7 @@ void WalkingState::start_crawl(PlayerState crawl_type) {
   state_timer.start();
 }
 
-void WalkingState::set_state(PlayerState s) {
+void MovementState::set_state(PlayerState s) {
   if (current_state != s) {
     walk_index = run_index = crawl1_index = crawl2_index = 0;
     phase = 0.0f;
@@ -119,18 +120,7 @@ void WalkingState::set_state(PlayerState s) {
   current_state = s;
 }
 
-void WalkingState::set_motion_state_for_speed(int player_speed, int ground_speed) {
+void MovementState::toggle_walk_frame(float player_speed, int tick_counter) {
-    int relative = player_speed - ground_speed;
-    PlayerState new_state = (relative > 1) ? PlayerState::Run : PlayerState::Walk;
-    if (new_state != current_state) {
-        run_index = 0;
-        walk_index = 0;
-    }
-    current_state = new_state;
-}
-
-// TODO THIS NEEDS REDESIGN FOR WALK/RUN
-void WalkingState::toggle_walk_frame(float player_speed, int tick_counter) {
   switch (current_state) {
   case PlayerState::Run:
     run_index = compute_frame_index(CHARACTER_RUN_FRAME_COUNT, player_speed, tick_counter);
@@ -150,7 +140,7 @@ void WalkingState::toggle_walk_frame(float player_speed, int tick_counter) {
   }
 }
 
-FrameSelection WalkingState::get_frame_selection() const {
+FrameSelection MovementState::get_frame_selection() const {
     FrameSelection f{};
     switch (current_state) {
     case PlayerState::Walk:

semestralka1/src/game/state.h

@@ -12,9 +12,10 @@ struct FrameSelection {
   int frame_index;
 };
 
-class WalkingState {
+class MovementState {
 private:
   PlayerState current_state = PlayerState::Walk;
+  PlayerState previous_state = PlayerState::Walk;
   Timer state_timer;
   int walk_index = 0;   // cycles 0‑6
   int run_index  = 0;   // cycles 0‑6
@@ -26,7 +27,6 @@ public:
   void update();
   void start_crawl(PlayerState crawl_type);
 
-  void set_motion_state_for_speed(int player_speed, int ground_speed);
   void toggle_walk_frame(float player_speed, int tick_counter);
 
   FrameSelection get_frame_selection() const;

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/main.cpp

@@ -21,6 +21,7 @@ int main(void) {
     serial_port.set_format(8, BufferedSerial::None, 1);
     printf("Baud: %d, Format: 8-N-1\r\n", BAUD_RATE);
 
-    // Just call into render feature
+    while (true) {
-    render_loop(6);
+      render_loop(4);
+    }
 }

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

@@ -5,88 +5,216 @@
 #include "background.h"
 #include "mbed.h"
 #include "player.h"
+#include "background.h"
+#include "../game/game_over.h"
+#include "../game/game_state.h"
 #include "../game/state.h"
 #include "../game/animation.h"
-#include "../hardware/uart.h"
+#include "../game/collision.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;
+ButtonHandler button(BUTTON1, LED1);
 
 // Constants
 // constexpr int PLAYER_X = 9;
 constexpr int PLAYER_X = 29;
 constexpr int PLAYER_Y = 6;
+constexpr int STACK_SIZE = 4096;
 
-void draw_mask(const char *unused_filename, int shift, const char *text);
+void logic_loop(void *arg) {
-
+  int speed = *(int *)arg;
-void render_loop(int speed) {
+  MovementState player_state;
-  WalkingState player_state;
   AnimationController animation;
-  UartReader uart(serial_port);
   MovementController mover(PLAYER_X, VIEW_WIDTH);
   SpeedController timing;
   timing.set_ground_speed(speed);
 
   CharacterPosition pos = {PLAYER_X, PLAYER_Y};
 
-  const char *bg_file = "background_dark_inverted.txt";
+  Timer spawn_timer;
-  bool need_redraw = false;
+  spawn_timer.start();
+  Timer speed_timer;
+  speed_timer.start();
 
   int anim_tick_counter = 0;
   int tick_counter = 0;
-  int player_speed = 6;
+  bool game_over = false;
+  Timer game_timer;
+  game_timer.start();
 
-  player_state.set_state(PlayerState::Run);
+  // Spawn first obstacle
-  while (true) {
+  if (speed >= 5)
+    spawn_obstacle(CrawlObstacleType::Crawl1, VIEW_WIDTH + 10);
+
+  while (!game_over) {
     tick_counter++;
 
-    mover.update_position(player_speed, timing.get_ground_speed());
+    if (speed_timer.elapsed_time() >= 6s) {
+      speed++;
+      timing.set_ground_speed(speed);
+      speed_timer.reset();
+
+      // update players animation mode
+      if (speed < 4)
+        player_state.set_state(PlayerState::Walk);
+      else
+        player_state.set_state(PlayerState::Run);
+    }
+    mover.update_position(speed, timing.get_ground_speed());
     pos.x = mover.get_position();
 
-    need_redraw = false;
+    // Spawn periodically
-    UartEvent uart_event = uart.poll();
+    if (speed >= 5 && spawn_timer.elapsed_time() > 6s) {
-
+      spawn_timer.reset();
-    if (uart_event == UartEvent::MessageUpdate) {
+      spawn_obstacle(CrawlObstacleType::Crawl1, VIEW_WIDTH);
-      need_redraw = true;
     }
 
-    if (uart_event == UartEvent::Triggered) {
+    // Handle input
+    if (button.poll() == ButtonEvent::Pressed) {
       PlayerState current = player_state.get_state();
-
+      if (current == PlayerState::Walk || current == PlayerState::Run)
-      // pressing UART trigger while walking/running -> Crawl1
-      if (current == PlayerState::Walk || current == PlayerState::Run) {
         player_state.start_crawl(PlayerState::Crawl1);
-      }
+      else if (current == PlayerState::Crawl1)
-      // pressing again while crawling -> Crawl2
-      else if (current == PlayerState::Crawl1) {
         player_state.start_crawl(PlayerState::Crawl2);
     }
 
-      need_redraw = true;
-    }
-
-    // Check if crawl duration expired
     player_state.update();
 
-    if (animation.tick(speed)) {
+    bool anim_tick = animation.tick(speed);
+    if (anim_tick) {
       anim_tick_counter++;
-      need_redraw = true;
+      player_state.toggle_walk_frame(speed, anim_tick_counter);
+      FrameSelection frame = player_state.get_frame_selection();
+      CharacterPosition draw_pos = get_aligned_frame_position(pos, frame.movement, frame.frame_index);
+
+      int ground_speed = timing.get_ground_speed();
+      bool collision = false;
+
+      for (int i = 0; i < MAX_OBSTACLES; i++) {
+        if (!obstacle_pool[i].active)
+          continue;
+
+        // Keep original position
+        int old_x = obstacle_pool[i].data.x;
+        int new_x = old_x - ground_speed;
+
+        // Remove if fully offscreen after movement
+        if (new_x + obstacle_pool[i].data.width < 0) {
+          obstacle_pool[i].active = false;
+          continue;
         }
 
-    if (need_redraw) {
+	// Swept for collision detections at speeds > 1
-      player_state.toggle_walk_frame(player_speed, anim_tick_counter);
+        int left_swept = (new_x < old_x) ? new_x : old_x;
-      draw_mask(bg_file, animation.get_shift(), uart.get_message());
+        int right_swept = ((new_x + obstacle_pool[i].data.width) >
-      FrameSelection frame = player_state.get_frame_selection();
+                           (old_x + obstacle_pool[i].data.width))
+                              ? (new_x + obstacle_pool[i].data.width)
+                              : (old_x + obstacle_pool[i].data.width);
 
-      CharacterPosition draw_pos = get_aligned_frame_position(pos, frame.movement, frame.frame_index);
+        // Temporarily create a synthetic obstacle covering the swept range
-      draw_character(draw_pos.x, draw_pos.y, frame.movement, frame.frame_index);
+        Obstacle swept_obs{};
+        swept_obs.x = left_swept;
+        swept_obs.y = obstacle_pool[i].data.y;
+        swept_obs.width = right_swept - left_swept;
+        swept_obs.height = obstacle_pool[i].data.height;
 
-      ThisThread::sleep_for(50ms);
+        if (check_collision(pos, frame.movement, swept_obs)) {
+          collision = true;
+          break;
+        }
+
+        obstacle_pool[i].data.x = new_x;
+      }
+
+
+      g_state_mutex.lock();
+
+      g_state.player_pos = draw_pos;
+      g_state.current_speed = speed;
+      g_state.movement = frame.movement;
+      g_state.frame_index = frame.frame_index;
+      g_state.background_shift = animation.get_shift();
+      g_state.need_redraw = true;
+      g_state.game_over = collision;
+
+      for (int i = 0; i < MAX_OBSTACLES; i++) {
+        g_state.obstacles[i].x = obstacle_pool[i].data.x;
+        g_state.obstacles[i].y = obstacle_pool[i].data.y;
+        g_state.obstacles[i].type = obstacle_pool[i].type;
+        g_state.obstacles[i].active = obstacle_pool[i].active;
+      }
+
+      g_state_mutex.unlock();
+
+      if (collision)
+        game_over = true;
     }
 
     ThisThread::sleep_for(25ms);
   }
+
+  game_timer.stop();
+  int seconds = static_cast<int>(game_timer.elapsed_time().count() / 1000000);
+
+  g_state_mutex.lock();
+  g_state.elapsed_seconds = seconds;
+  g_state.game_over = true;
+  g_state_mutex.unlock();
+}
+
+void render_loop_thread() {
+  while (true) {
+    g_state_mutex.lock();
+    bool need = g_state.need_redraw;
+    bool over = g_state.game_over;
+    GameState local = g_state;
+    g_state.need_redraw = false;
+    g_state_mutex.unlock();
+
+    if (over) {
+      show_game_over_screen(local.elapsed_seconds, button);
+      break;
+    }
+
+    if (need) {
+      draw_mask("background", local.background_shift);
+      draw_character(local.player_pos.x, local.player_pos.y, local.movement,
+                     local.frame_index);
+      if (local.current_speed >= 5) {
+        for (int i = 0; i < MAX_RENDER_OBSTACLES; i++) {
+          if (local.obstacles[i].active)
+            draw_obstacle(local.obstacles[i].x, local.obstacles[i].y,
+                          local.obstacles[i].type);
+        }
+      }
+    }
+
+    ThisThread::sleep_for(50ms);
+  }
+}
+
+void render_loop(int speed) {
+  g_state_mutex.lock();
+  g_state.need_redraw = false;
+  g_state.game_over = false;
+  g_state_mutex.unlock();
+
+  int *speed_ptr = new int(speed);
+
+  Thread logic_thread(osPriorityNormal, STACK_SIZE);
+  Thread render_thread(osPriorityNormal, STACK_SIZE);
+
+  logic_thread.start(callback(logic_loop, (void *)speed_ptr));
+  render_thread.start(render_loop_thread);
+
+  logic_thread.join();
+  render_thread.join();
+
+  delete speed_ptr;
 }

semestralka1/src/render/obstacle.cpp

@@ -0,0 +1,51 @@
+// src/render/obstacle.cpp
+#include "obstacle.h"
+#include "../assets/obstacle_crawl_frames.h"
+#include "../assets/background_frame.h"
+#include <cstdio>
+
+// Draws an obstacle using bottom‑based world coordinates.
+void draw_obstacle(int x, int y, CrawlObstacleType type) {
+    const char **obstacle_frame = nullptr;
+    int frame_total_height = 0;
+
+    int collision_top_offset = 0;
+    int collision_height = 0;
+    int collision_left_offset = 0;
+
+    switch (type) {
+    case CrawlObstacleType::Crawl1:
+        obstacle_frame = OBSTACLE_CRAWL1_FRAME;
+        frame_total_height = OBSTACLE_CRAWL1_FRAME_HEIGHT;
+        collision_top_offset = OBSTACLE_CRAWL1_COLLISION_TOP_OFFSET;
+        collision_height = OBSTACLE_CRAWL1_COLLISION_HEIGHT;
+        collision_left_offset = OBSTACLE_CRAWL1_COLLISION_LEFT_OFFSET;
+        break;
+
+    case CrawlObstacleType::Crawl2:
+        obstacle_frame = OBSTACLE_CRAWL2_FRAME;
+        frame_total_height = OBSTACLE_CRAWL2_FRAME_HEIGHT;
+        collision_top_offset = 0;
+        collision_height = OBSTACLE_CRAWL2_COLLISION_HEIGHT;
+        collision_left_offset = OBSTACLE_CRAWL2_COLLISION_LEFT_OFFSET;
+        break;
+
+    default:
+        return; // no rendering for invalid type
+    }
+
+    // Convert bottom‑based coordinates to screen coordinates.
+    const int frame_row_index_bottom = collision_top_offset + collision_height - 1;
+    const int frame_top_world_y = y + frame_row_index_bottom;
+    const int frame_top_screen_row = VIEW_HEIGHT - frame_top_world_y;
+
+    const int frame_screen_x = x - collision_left_offset;
+
+    for (int i = 0; i < frame_total_height; i++) {
+        const int screen_row = frame_top_screen_row + i;
+        if (screen_row < 1 || screen_row > VIEW_HEIGHT) continue;
+        printf("\033[%d;%dH%s", screen_row, frame_screen_x + 1, obstacle_frame[i]);
+    }
+
+    fflush(stdout);
+}

semestralka1/src/render/obstacle.h

@@ -0,0 +1,7 @@
+// src/render/obstacle.h
+#pragma once
+
+#include "../assets/obstacle_crawl_frames.h"
+
+// Draw the obstacle ASCII block starting at given (x, y)
+void draw_obstacle(int x, int y, CrawlObstacleType type);

semestralka1/src/timing/speed_controller.h

@@ -13,7 +13,5 @@ public:
     int get_ground_speed() const { return ground_speed; }
 
     // Calculates how many frames to advance for current tick.
-    // Takes object’s current speed and a global tick counter
-    // to automatically handle slower "wait" behavior.
     int frame_advance_for(int object_speed, int tick_counter) const;
 };