[core] create new bookmark animation

1 files changed, 69 insertions, 0 deletions

diff --git a/map/anim_phase_chain.cpp b/map/anim_phase_chain.cpp
new file mode 100644
index 0000000000..e37cc54ab2
--- /dev/null
+++ b/map/anim_phase_chain.cpp
@@ -0,0 +1,69 @@
+#include "anim_phase_chain.hpp"
+
+#include "framework.hpp"
+
+AnimPhase::AnimPhase(double endScale, double timeInterval)
+  : m_endScale(endScale)
+  , m_timeInterval(timeInterval)
+{
+}
+
+AnimPhaseChain::AnimPhaseChain(Framework & f, double & scale)
+  : m_f(f)
+  , m_scale(scale)
+{
+}
+
+void AnimPhaseChain::AddAnimPhase(AnimPhase const & phase)
+{
+  m_animPhases.push_back(phase);
+}
+
+void AnimPhaseChain::OnStart(double ts)
+{
+  m_startTime = ts;
+  m_startScale = m_scale;
+  m_phaseIndex = 0;
+}
+
+void AnimPhaseChain::OnStep(double ts)
+{
+  ASSERT(m_phaseIndex < m_animPhases.size(), ());
+
+  AnimPhase const * phase = &m_animPhases[m_phaseIndex];
+  double elapsedTime = ts - m_startTime;
+  if (elapsedTime > phase->m_timeInterval)
+  {
+    m_startTime = ts;
+    m_scale = phase->m_endScale;
+    m_startScale = m_scale;
+    m_phaseIndex++;
+    if (m_phaseIndex >= m_animPhases.size())
+    {
+      End();
+      return;
+    }
+  }
+
+  elapsedTime = ts - m_startTime;
+  double t = elapsedTime / phase->m_timeInterval;
+  m_scale = m_startScale + t * (phase->m_endScale - m_startScale);
+
+  m_f.Invalidate();
+}
+
+void InitDefaultPinAnim(AnimPhaseChain * chain)
+{
+  chain->AddAnimPhase(AnimPhase(1.2, 0.15));
+  chain->AddAnimPhase(AnimPhase(0.8, 0.08));
+  chain->AddAnimPhase(AnimPhase(1, 0.05));
+}
+
+shared_ptr<anim::Task> CreateDefaultPinAnim(Framework & f, double & scale)
+{
+  AnimPhaseChain * anim = new AnimPhaseChain(f, scale);
+  InitDefaultPinAnim(anim);
+
+  return make_shared_ptr<anim::Task>(anim);
+}
+