animations: Refactor AnimatedVariable (#4911)

* animation: Refactor AnimatedVariable

This commit decomposes the AnimatedVariable class into a base class
with the common attribute to all variable types and a templated derived
type containing strongly typed info on the type being animated.

Access to the typed version is perfomed using the visitor pattern. A
utility is provided to build a visitor on the fly using lambdas.

Adding a new type to be animated should just be a matter of adding the
typed in the list defined by the ANIMABLE_TYPES macro

The size of the commit is justified by the API change in the
AnimatedVariable class. No more vec(), fl() or col() method but a unified
value() method.

* animation: Remove visitor pattern

* animation: Fix coding style

* animation: Fix coding style

1 files changed, 3 insertions, 3 deletions

diff --git a/src/managers/AnimationManager.hpp b/src/managers/AnimationManager.hpp
index 281c61f8..ae82a60b 100644
--- a/src/managers/AnimationManager.hpp
+++ b/src/managers/AnimationManager.hpp
@@ -28,8 +28,8 @@ class CAnimationManager {
 
     std::unordered_map<std::string, CBezierCurve> getAllBeziers();
 
-    std::vector<CAnimatedVariable*>               m_vAnimatedVariables;
-    std::vector<CAnimatedVariable*>               m_vActiveAnimatedVariables;
+    std::vector<CBaseAnimatedVariable*>           m_vAnimatedVariables;
+    std::vector<CBaseAnimatedVariable*>           m_vActiveAnimatedVariables;
 
     wl_event_source*                              m_pAnimationTick;
 
@@ -52,4 +52,4 @@ class CAnimationManager {
     void animationSlide(CWindow*, std::string force = "", bool close = false);
 };
 
-inline std::unique_ptr<CAnimationManager> g_pAnimationManager;
\ No newline at end of file
+inline std::unique_ptr<CAnimationManager> g_pAnimationManager;