From b20de5f2d7dd54c56af6bda51748d2c03446bcdd Mon Sep 17 00:00:00 2001
From: Holger Schemel <info@artsoft.org>
Date: Sun, 17 Mar 2019 20:20:51 +0100
Subject: [PATCH] added global animation event 'unclick:any' to handle mouse
 release events

---
 src/anim.c           | 36 ++++++++++++++++++++++++++++++------
 src/files.c          |  3 +++
 src/libgame/system.h |  1 +
 3 files changed, 34 insertions(+), 6 deletions(-)

diff --git a/src/anim.c b/src/anim.c
index 824f86b5..9d1f0b5c 100644
--- a/src/anim.c
+++ b/src/anim.c
@@ -1013,6 +1013,8 @@ static boolean checkGlobalAnimEvent(int anim_event, int mask)
     return (anim_event & ANIM_EVENT_ANY);
   else if (mask & ANIM_EVENT_SELF)
     return (anim_event & ANIM_EVENT_SELF);
+  else if (mask & ANIM_EVENT_UNCLICK_ANY)
+    return (anim_event & ANIM_EVENT_UNCLICK_ANY);
   else
     return (anim_event == mask ||
 	    anim_event == mask_anim_only);
@@ -1662,7 +1664,11 @@ static void InitGlobalAnim_Clickable(void)
   }
 }
 
-static boolean InitGlobalAnim_Clicked(int mx, int my, boolean clicked)
+#define ANIM_CLICKED_RESET	0
+#define ANIM_CLICKED_PRESSED	1
+#define ANIM_CLICKED_RELEASED	2
+
+static boolean InitGlobalAnim_Clicked(int mx, int my, int clicked_event)
 {
   boolean anything_clicked = FALSE;
   boolean any_part_clicked = FALSE;
@@ -1686,7 +1692,7 @@ static boolean InitGlobalAnim_Clicked(int mx, int my, boolean clicked)
       {
 	struct GlobalAnimPartControlInfo *part = &anim->part[part_nr];
 
-	if (!clicked)
+	if (clicked_event == ANIM_CLICKED_RESET)
 	{
 	  part->clicked = FALSE;
 
@@ -1700,7 +1706,8 @@ static boolean InitGlobalAnim_Clicked(int mx, int my, boolean clicked)
 	  continue;
 
 	// always handle "any" click events (clicking anywhere on screen) ...
-	if (isClickablePart(part, ANIM_EVENT_ANY))
+	if (clicked_event == ANIM_CLICKED_PRESSED &&
+	    isClickablePart(part, ANIM_EVENT_ANY))
 	{
 #if DEBUG_ANIM_EVENTS
 	  printf("::: => %d.%d TRIGGERED BY ANY\n",
@@ -1711,11 +1718,25 @@ static boolean InitGlobalAnim_Clicked(int mx, int my, boolean clicked)
 	  anything_clicked = clickConsumed(part);
 	}
 
+	// always handle "unclick:any" events (releasing anywhere on screen) ...
+	if (clicked_event == ANIM_CLICKED_RELEASED &&
+	    isClickablePart(part, ANIM_EVENT_UNCLICK_ANY))
+	{
+#if DEBUG_ANIM_EVENTS
+	  printf("::: => %d.%d TRIGGERED BY UNCLICK:ANY\n",
+		 part->old_anim_nr + 1, part->old_nr + 1);
+#endif
+
+	  part->clicked = TRUE;
+	  anything_clicked = clickConsumed(part);
+	}
+
 	// ... but only handle the first (topmost) clickable animation
 	if (any_part_clicked)
 	  continue;
 
-	if (isClickedPart(part, mx, my, clicked))
+	if (clicked_event == ANIM_CLICKED_PRESSED &&
+	    isClickedPart(part, mx, my, TRUE))
 	{
 #if 0
 	  printf("::: %d.%d CLICKED [%d]\n", anim_nr, part_nr,
@@ -1758,7 +1779,7 @@ static void ResetGlobalAnim_Clickable(void)
 
 static void ResetGlobalAnim_Clicked(void)
 {
-  InitGlobalAnim_Clicked(-1, -1, FALSE);
+  InitGlobalAnim_Clicked(-1, -1, ANIM_CLICKED_RESET);
 }
 
 boolean HandleGlobalAnimClicks(int mx, int my, int button)
@@ -1776,12 +1797,15 @@ boolean HandleGlobalAnimClicks(int mx, int my, int button)
 
   if (press_event)
   {
-    click_consumed = InitGlobalAnim_Clicked(mx, my, TRUE);
+    click_consumed = InitGlobalAnim_Clicked(mx, my, ANIM_CLICKED_PRESSED);
     click_consumed_current = click_consumed;
   }
 
   if (release_event)
+  {
+    InitGlobalAnim_Clicked(mx, my, ANIM_CLICKED_RELEASED);
     click_consumed = FALSE;
+  }
 
   return click_consumed_current;
 }
diff --git a/src/files.c b/src/files.c
index 5ec5f7f0..cfba947d 100644
--- a/src/files.c
+++ b/src/files.c
@@ -10168,6 +10168,9 @@ static int get_anim_parameter_values(char *s)
       string_has_parameter(s, "self"))
     event_value |= ANIM_EVENT_SELF;
 
+  if (string_has_parameter(s, "unclick:any"))
+    event_value |= ANIM_EVENT_UNCLICK_ANY;
+
   // if animation event found, add it to global animation event list
   if (event_value != ANIM_EVENT_NONE)
     list_pos = AddGlobalAnimEventValue(list_pos, event_value);
diff --git a/src/libgame/system.h b/src/libgame/system.h
index 8bcafb82..51357bce 100644
--- a/src/libgame/system.h
+++ b/src/libgame/system.h
@@ -362,6 +362,7 @@
 #define ANIM_EVENT_START	(1 << 20)
 #define ANIM_EVENT_END		(1 << 21)
 #define ANIM_EVENT_POST		(1 << 22)
+#define ANIM_EVENT_UNCLICK_ANY	(1 << 23)
 
 // anim number: bits 0-7
 // part number: bits 8-15
-- 
2.34.1