From d35f747b5a09a7a6cb8c430999c9e567a13005ef Mon Sep 17 00:00:00 2001
From: natinusala <natinusala@gmail.com>
Date: Tue, 13 Nov 2018 14:33:32 +0100
Subject: [PATCH] menu_animation: add menu_timer system

---
 .vscode/settings.json |  3 ++-
 menu/menu_animation.c | 27 +++++++++++++++++++++++++++
 menu/menu_animation.h | 13 +++++++++++++
 3 files changed, 42 insertions(+), 1 deletion(-)

diff --git a/.vscode/settings.json b/.vscode/settings.json
index 97b14ee97e..0d11e3b03f 100644
--- a/.vscode/settings.json
+++ b/.vscode/settings.json
@@ -27,7 +27,8 @@
       "menu_driver.h": "c",
       "file_path.h": "c",
       "unordered_map": "c",
-      "unordered_set": "c"
+      "unordered_set": "c",
+      "sstream": "cpp"
    },
    "C_Cpp.dimInactiveRegions": false,
 }
\ No newline at end of file
diff --git a/menu/menu_animation.c b/menu/menu_animation.c
index 68c6260fbb..d2b2b0f72f 100644
--- a/menu/menu_animation.c
+++ b/menu/menu_animation.c
@@ -711,3 +711,30 @@ bool menu_animation_ctl(enum menu_animation_ctl_state state, void *data)
 
    return true;
 }
+
+void menu_timer_start(menu_timer_t *timer, menu_timer_ctx_entry_t *timer_entry)
+{
+   menu_animation_ctx_tag tag = (uintptr_t) timer;
+
+   menu_timer_kill(timer);
+
+   *timer = 0.0f;
+
+   menu_animation_ctx_entry_t entry;
+
+   entry.easing_enum    = EASING_LINEAR;
+   entry.tag            = tag;
+   entry.duration       = timer_entry->duration;
+   entry.target_value   = 1.0f;
+   entry.subject        = timer;
+   entry.cb             = timer_entry->cb;
+   entry.userdata       = timer_entry->userdata;
+
+   menu_animation_push(&entry);
+}
+
+void menu_timer_kill(menu_timer_t *timer)
+{
+   menu_animation_ctx_tag tag = (uintptr_t) timer;
+   menu_animation_kill_by_tag(&tag);
+}
diff --git a/menu/menu_animation.h b/menu/menu_animation.h
index 6983237719..d1bc513489 100644
--- a/menu/menu_animation.h
+++ b/menu/menu_animation.h
@@ -118,6 +118,19 @@ typedef struct menu_animation_ctx_ticker
    const char *str;
 } menu_animation_ctx_ticker_t;
 
+typedef float menu_timer_t;
+
+typedef struct menu_timer_ctx_entry
+{
+   float duration;
+   tween_cb cb;
+   void *userdata;
+} menu_timer_ctx_entry_t;
+
+void menu_timer_start(menu_timer_t *timer, menu_timer_ctx_entry_t *timer_entry);
+
+void menu_timer_kill(menu_timer_t *timer);
+
 bool menu_animation_update(float delta_time);
 
 bool menu_animation_get_ideal_delta_time(menu_animation_ctx_delta_t *delta);