fix: Engine-Grenzen für Segmente und Blink-Anzahl

src/light/nl_engine.c

@@ -38,6 +38,8 @@ static int32_t lerp(int32_t a, int32_t b, uint32_t e, uint32_t d)
 
 static void push(const nl_visual_t *from, const nl_visual_t *to, uint32_t dur)
 {
+    if (s_nseg >= sizeof s_seg / sizeof s_seg[0])
+        return;
     seg_t *s = &s_seg[s_nseg++];
     s->from = *from;
     s->to = *to;
@@ -165,6 +167,8 @@ void nl_engine_current(nl_visual_t *out)
 
 void nl_engine_blink(uint8_t count)
 {
+    if (count > NL_BLINK_MAX)
+        count = NL_BLINK_MAX;
     s_blink_left = (uint8_t)(count * 2u);
     s_blink_t = 0;
     emit();

src/light/nl_engine.h

@@ -8,6 +8,7 @@
 #include "light/nl_light_types.h"
 
 #define NL_BLINK_PHASE_MS  300u
+#define NL_BLINK_MAX       100u
 #define NL_PULSE_PERIOD_MS 3000u
 
 typedef void (*nl_output_fn)(const uint8_t ch[NL_CH_COUNT], void *ctx);

test/test_engine.c

@@ -171,6 +171,18 @@ static void test_pulse(void)
     TEST_ASSERT_TRUE(nl_engine_idle());
 }
 
+static void test_blink_max_clamped(void)
+{
+    nl_engine_blink(200); /* > NL_BLINK_MAX, should clamp to 100 */
+    TEST_ASSERT_FALSE(nl_engine_idle());
+    /* After 99 blinks (99*2 phases = 198), should still be blinking */
+    nl_engine_tick(300 * 99 * 2);
+    TEST_ASSERT_FALSE(nl_engine_idle());
+    /* After 2 more phases to complete the last blink (total 100 blinks), should be idle */
+    nl_engine_tick(300 * 2);
+    TEST_ASSERT_TRUE(nl_engine_idle());
+}
+
 int main(void)
 {
     UNITY_BEGIN();
@@ -184,5 +196,6 @@ int main(void)
     RUN_TEST(test_color_interpolates);
     RUN_TEST(test_blink_overrides_and_restores);
     RUN_TEST(test_pulse);
+    RUN_TEST(test_blink_max_clamped);
     return UNITY_END();
 }