From 52883755f19757c16623b93b6ae8f44e04330e91 Mon Sep 17 00:00:00 2001
From: Sebastian Krzyszkowiak <dos@dosowisko.net>
Date: Wed, 30 May 2018 00:30:12 +0200
Subject: [PATCH] timeline: initial API change for handling time delta

---
 src/timeline.c | 3 ++-
 src/timeline.h | 2 +-
 src/tween.c    | 1 +
 3 files changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/timeline.c b/src/timeline.c
index ddcfc4e..83ffdf8 100644
--- a/src/timeline.c
+++ b/src/timeline.c
@@ -34,7 +34,8 @@ SYMBOL_EXPORT struct Timeline* TM_Init(struct Game* game, char* name) {
 	return timeline;
 }
 
-SYMBOL_EXPORT void TM_Process(struct Timeline* timeline) {
+SYMBOL_EXPORT void TM_Process(struct Timeline* timeline, double delta) {
+	// TODO: handle delta
 	/* process first element from queue
 		 if returns true, delete it
 		 and repeat for the next one */
diff --git a/src/timeline.h b/src/timeline.h
index 0cfc360..0111f68 100644
--- a/src/timeline.h
+++ b/src/timeline.h
@@ -68,7 +68,7 @@ struct TM_Action {
 /*! \brief Init timeline. */
 struct Timeline* TM_Init(struct Game* game, char* name);
 /*! \brief Process current timeline actions. */
-void TM_Process(struct Timeline*);
+void TM_Process(struct Timeline*, double delta);
 /*! \brief Ask current timeline actions to draw. */
 void TM_Draw(struct Timeline*);
 /*! \brief Pauses the timeline. */
diff --git a/src/tween.c b/src/tween.c
index c9a3d59..762766c 100644
--- a/src/tween.c
+++ b/src/tween.c
@@ -335,6 +335,7 @@ double Interpolate(double pos, TWEEN_STYLE style) {
 		case TWEEN_STYLE_BOUNCE_IN_OUT:
 			return BounceEaseInOut(pos);
 	}
+	return pos;
 }
 
 double GetTweenInterpolation(struct Tween* tween) {