lib/import/shake_script.rb in tracksperanto-1.5.3 vs lib/import/shake_script.rb in tracksperanto-1.5.4

@@ -191,10 +191,16 @@
       t = Tracksperanto::Tracker.new(:name => name, :keyframes => keyframes )
       self.class.accumulator.push(t)
     end
     
     def collect_tracker(name, x_curve, y_curve, corr_curve, s1, s2, s3, s4, s5, s6, s7, s8, s9, s10, s11, s12)
+      unless x_curve.is_a?(Array) && y_curve.is_a?(Array)
+        report_progress("Tracker #{name} had no anim or unsupported interpolation and can't be recovered")
+        return
+      end
+      
       report_progress("Scavenging tracker #{name}")
+      
       keyframes = zip_curve_tuples(x_curve, y_curve, corr_curve).map do | (frame, x, y, corr) |
         Tracksperanto::Keyframe.new(:frame => frame - 1, :abs_x => x, :abs_y => y, :residual => (1 - corr))
       end
       
       t = Tracksperanto::Tracker.new(:name => name, :keyframes => keyframes )
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