From 221e41f58cf671a71c3a174c8c8f8c4efd98e3c2 Mon Sep 17 00:00:00 2001
From: Joey Castillo <joeycastillo@utexas.edu>
Date: Tue, 21 Dec 2021 12:30:20 -0600
Subject: add 'hello there' face, demo for documentation

---
 movement/watch_faces/demos/hello_there_face.c | 56 +++++++++++++++++++++++++++
 movement/watch_faces/demos/hello_there_face.h | 24 ++++++++++++
 2 files changed, 80 insertions(+)
 create mode 100644 movement/watch_faces/demos/hello_there_face.c
 create mode 100644 movement/watch_faces/demos/hello_there_face.h

(limited to 'movement/watch_faces')

diff --git a/movement/watch_faces/demos/hello_there_face.c b/movement/watch_faces/demos/hello_there_face.c
new file mode 100644
index 00000000..e023b9d3
--- /dev/null
+++ b/movement/watch_faces/demos/hello_there_face.c
@@ -0,0 +1,56 @@
+#include <stdlib.h>
+#include <string.h>
+#include "hello_there_face.h"
+#include "watch.h"
+
+void hello_there_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr) {
+    (void) settings;
+    (void) watch_face_index;
+    if (*context_ptr == NULL) {
+        *context_ptr = malloc(sizeof(hello_there_state_t));
+        memset(*context_ptr, 0, sizeof(hello_there_state_t));
+    }
+}
+
+void hello_there_face_activate(movement_settings_t *settings, void *context) {
+    (void) settings;
+    hello_there_state_t *state = (hello_there_state_t *)context;
+    state->current_word = 0;
+    state->animating = true;
+}
+
+bool hello_there_face_loop(movement_event_t event, movement_settings_t *settings, void *context) {
+    (void) settings;
+    hello_there_state_t *state = (hello_there_state_t *)context;
+
+    switch (event.event_type) {
+        case EVENT_ACTIVATE:
+        case EVENT_TICK:
+            if (state->animating) {
+                if (state->current_word == 0) watch_display_string("Hello ", 4);
+                else watch_display_string(" there", 4);
+                state->current_word = (state->current_word + 1) % 2;
+            }
+            break;
+        case EVENT_MODE_BUTTON_UP:
+            movement_move_to_next_face();
+            break;
+        case EVENT_LIGHT_BUTTON_UP:
+            movement_illuminate_led();
+            break;
+        case EVENT_ALARM_BUTTON_UP:
+            state->animating = !state->animating;   
+            break;
+        case EVENT_TIMEOUT:
+            movement_move_to_face(0);
+        default:
+            break;
+    }
+
+    return true;
+}
+
+void hello_there_face_resign(movement_settings_t *settings, void *context) {
+    (void) settings;
+    (void) context;
+}
diff --git a/movement/watch_faces/demos/hello_there_face.h b/movement/watch_faces/demos/hello_there_face.h
new file mode 100644
index 00000000..0174b6f0
--- /dev/null
+++ b/movement/watch_faces/demos/hello_there_face.h
@@ -0,0 +1,24 @@
+#ifndef HELLO_THERE_FACE_H_
+#define HELLO_THERE_FACE_H_
+
+#include "movement.h"
+
+typedef struct {
+    uint8_t current_word;
+    bool animating;
+} hello_there_state_t;
+
+void hello_there_face_setup(movement_settings_t *settings, uint8_t watch_face_index, void ** context_ptr);
+void hello_there_face_activate(movement_settings_t *settings, void *context);
+bool hello_there_face_loop(movement_event_t event, movement_settings_t *settings, void *context);
+void hello_there_face_resign(movement_settings_t *settings, void *context);
+
+static const watch_face_t hello_there_face = {
+    hello_there_face_setup,
+    hello_there_face_activate,
+    hello_there_face_loop,
+    hello_there_face_resign,
+    NULL
+};
+
+#endif // HELLO_THERE_FACE_H_
-- 
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