From db1f966e0add8fd6d17db9bdd32d92ef4129ea8c Mon Sep 17 00:00:00 2001
From: synzr <mikhail@synzr.space>
Date: Sun, 12 Oct 2025 20:14:31 +0500
Subject: [PATCH] feat(layers): character layer

---
 package.json                 |  12 +++++++
 resources/character_even.png | Bin 0 -> 632 bytes
 resources/character_odd.png  | Bin 0 -> 589 bytes
 src/c/character_layer.c      |  67 +++++++++++++++++++++++++++++++++++
 src/c/character_layer.h      |  10 ++++++
 src/c/clock_layer.c          |   3 +-
 src/c/clock_layer.h          |   2 +-
 src/c/main_window.c          |   8 +++--
 8 files changed, 97 insertions(+), 5 deletions(-)
 create mode 100644 resources/character_even.png
 create mode 100644 resources/character_odd.png
 create mode 100644 src/c/character_layer.c
 create mode 100644 src/c/character_layer.h

diff --git a/package.json b/package.json
index 2d182a5..373d253 100644
--- a/package.json
+++ b/package.json
@@ -25,6 +25,18 @@
     ],
     "resources": {
       "media": [{
+        "type": "bitmap",
+        "name": "CHARACTER_EVEN",
+        "file": "character_even.png",
+        "memoryFormat": "Smallest",
+        "spaceOptimization": "memory"
+      }, {
+        "type": "bitmap",
+        "name": "CHARACTER_ODD",
+        "file": "character_odd.png",
+        "memoryFormat": "Smallest",
+        "spaceOptimization": "memory"
+      }, {
         "type": "font",
         "name": "CLOCK_FONT_38",
         "file": "clock_font_big.ttf",
diff --git a/resources/character_even.png b/resources/character_even.png
new file mode 100644
index 0000000000000000000000000000000000000000..cb788855a6185abc6ab48ca72aa474cd6b9b8273
GIT binary patch
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HcmV?d00001

diff --git a/resources/character_odd.png b/resources/character_odd.png
new file mode 100644
index 0000000000000000000000000000000000000000..660e92b7027f4da897bc770d0ebe6e89415ac82a
GIT binary patch
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literal 0
HcmV?d00001

diff --git a/src/c/character_layer.c b/src/c/character_layer.c
new file mode 100644
index 0000000..4ab0b18
--- /dev/null
+++ b/src/c/character_layer.c
@@ -0,0 +1,67 @@
+#include "character_layer.h"
+
+#define CHARACTER_H 80
+#define CHARACTER_STEP 4
+
+static Layer *s_character_layer;
+static GBitmap *s_character_even;
+static GBitmap *s_character_odd;
+static int s_character_ticks;
+
+static void character_layer_update_proc(Layer *layer, GContext *ctx) {
+  // Get the character bitmap.
+  GBitmap *bitmap;
+  if (s_character_ticks % 2 == 0) {
+    bitmap = s_character_even;
+  } else {
+    bitmap = s_character_odd;
+  }
+
+  // Get the position of character bitmap and align it to bottom.
+  GRect frame = gbitmap_get_bounds(bitmap);
+  GRect frame_inside = layer_get_unobstructed_bounds(layer);
+  grect_align(&frame, &frame_inside, GAlignBottom, true);
+
+  // Move the character.
+  switch (s_character_ticks) {
+    case 1:
+      frame.origin.x += CHARACTER_STEP;  // to right
+      break;
+    case 3:
+      frame.origin.x -= CHARACTER_STEP;  // to left
+      break;
+  }
+
+  // Draw the character.
+  graphics_context_set_compositing_mode(ctx, GCompOpSet);
+  graphics_draw_bitmap_in_rect(ctx, bitmap, frame);
+}
+
+void character_layer_init(Window *window) {
+  s_character_ticks = 0;
+
+  s_character_even = gbitmap_create_with_resource(RESOURCE_ID_CHARACTER_EVEN);
+  s_character_odd = gbitmap_create_with_resource(RESOURCE_ID_CHARACTER_ODD);
+
+  Layer *window_root_layer = window_get_root_layer(window);
+  GRect window_bounds = layer_get_unobstructed_bounds(window_root_layer);
+
+  s_character_layer =
+      layer_create(GRect(0, window_bounds.size.h - CHARACTER_H, window_bounds.size.w, CHARACTER_H));
+  layer_set_update_proc(s_character_layer, character_layer_update_proc);
+
+  layer_add_child(window_root_layer, s_character_layer);
+}
+
+void character_layer_tick(void) {
+  if (++s_character_ticks == 4) {
+    s_character_ticks = 0;
+  }
+  layer_mark_dirty(s_character_layer);
+}
+
+void character_layer_deinit(void) {
+  layer_destroy(s_character_layer);
+  gbitmap_destroy(s_character_even);
+  gbitmap_destroy(s_character_odd);
+}
diff --git a/src/c/character_layer.h b/src/c/character_layer.h
new file mode 100644
index 0000000..0a68128
--- /dev/null
+++ b/src/c/character_layer.h
@@ -0,0 +1,10 @@
+#ifndef CHARACTER_LAYER_H_
+#define CHARACTER_LAYER_H_
+
+#include <pebble.h>
+
+void character_layer_init(Window *window);
+void character_layer_tick(void);
+void character_layer_deinit(void);
+
+#endif
diff --git a/src/c/clock_layer.c b/src/c/clock_layer.c
index cd9568f..8c0308d 100644
--- a/src/c/clock_layer.c
+++ b/src/c/clock_layer.c
@@ -69,11 +69,10 @@ void clock_layer_init(Window *window, GPoint position) {
   s_clock_layer =
       layer_create(GRect(position.x, position.y, window_bounds.size.w - position.x, 40));
   layer_set_update_proc(s_clock_layer, clock_layer_update_proc);
-
   layer_add_child(window_root_layer, s_clock_layer);
 }
 
-void clock_layer_update(void) {
+void clock_layer_tick(void) {
   layer_mark_dirty(s_clock_layer);
 }
 
diff --git a/src/c/clock_layer.h b/src/c/clock_layer.h
index 315b9e0..2525132 100644
--- a/src/c/clock_layer.h
+++ b/src/c/clock_layer.h
@@ -4,7 +4,7 @@
 #include <pebble.h>
 
 void clock_layer_init(Window *window, GPoint position);
-void clock_layer_update(void);
+void clock_layer_tick(void);
 void clock_layer_deinit(void);
 
 #endif
diff --git a/src/c/main_window.c b/src/c/main_window.c
index e1d0b03..304cc2c 100644
--- a/src/c/main_window.c
+++ b/src/c/main_window.c
@@ -1,20 +1,24 @@
 #include "main_window.h"
+#include "character_layer.h"
 #include "clock_layer.h"
 
 static Window *s_main_window;
 
 static void main_window_tick(struct tm *time, TimeUnits units) {
-  clock_layer_update();
+  character_layer_tick();
+  clock_layer_tick();
 }
 
 static void main_window_load(Window *window) {
-  clock_layer_init(s_main_window, GPoint(0, 60));
+  character_layer_init(s_main_window);
+  clock_layer_init(s_main_window, GPoint(0, 40));
   tick_timer_service_subscribe(SECOND_UNIT, main_window_tick);
 }
 
 static void main_window_unload(Window *window) {
   tick_timer_service_unsubscribe();
   clock_layer_deinit();
+  character_layer_deinit();
 }
 
 void main_window_init(void) {