sinus speed is displaying frames of the animation now

semestralka1/src/game/state.cpp

@@ -1,5 +1,6 @@
 // src/game/state.cpp
 #include "state.h"
+#include <cmath>
 #include "../render/player.h"
 #include "../timing/speed_controller.h"
 
@@ -19,8 +20,14 @@ void WalkingState::start_crawl() {
 }
 
 // TODO THIS NEEDS REDESIGN ACCORDING TO SPEED
-void WalkingState::toggle_walk_frame(int step) {
+void WalkingState::toggle_walk_frame(float player_speed, int tick_counter) {
-  run_index = (run_index + step) % 7;
+    constexpr int FRAME_COUNT = 8;
+    float phase_speed = player_speed * 0.1f;  // tune this scaling for animation tempo
+
+    float phase = fmodf(tick_counter * phase_speed, 1.0f);
+    int frame = static_cast<int>((1.0f - fabsf(sinf(phase * M_PI))) * (FRAME_COUNT - 1));
+
+    run_index = frame;
 }
 // void RunningState::toggle_run_frame() {
 //   if (++run_index >= 7) run_index = 0;

semestralka1/src/game/state.h

@@ -23,7 +23,7 @@ private:
 public:
   void update();
   void start_crawl();
-  void toggle_walk_frame(int step);
+  void toggle_walk_frame(float player_speed, int tick_counter);
 
   FrameSelection get_frame_selection() const;
   PlayerState get_state() const { return current_state; }

semestralka1/src/main.cpp

@@ -22,5 +22,5 @@ int main(void) {
     printf("Baud: %d, Format: 8-N-1\r\n", BAUD_RATE);
 
     // Just call into render feature
-    render_loop(1);
+    render_loop(6);
 }

semestralka1/src/render/loop.cpp

@@ -33,7 +33,7 @@ void render_loop(int speed) {
   bool need_redraw = false;
 
   int tick_counter = 0;
-  int player_speed = 3;
+  int player_speed = 4;
 
   while (true) {
     tick_counter++;
@@ -66,9 +66,7 @@ void render_loop(int speed) {
 
 
       if (player_state.get_state() != PlayerState::Crawl) {
-        int step = timing.frame_advance_for(player_speed, tick_counter);
+        player_state.toggle_walk_frame(player_speed, tick_counter);
-        if (step > 0)
-          player_state.toggle_walk_frame(step);
       }
 
       ThisThread::sleep_for(50ms);