diff --git a/sjplayer/src/sjplayer/CircleElementScheduledController.d b/sjplayer/src/sjplayer/CircleElementScheduledController.d
index b298d8d..2a485e0 100644
--- a/sjplayer/src/sjplayer/CircleElementScheduledController.d
+++ b/sjplayer/src/sjplayer/CircleElementScheduledController.d
@@ -4,8 +4,7 @@ module sjplayer.CircleElementScheduledController;
 import std.typecons;
 
 import sjplayer.CircleElement,
-       sjplayer.ElementScheduledController,
-       sjplayer.ScheduledControllerFactory;
+       sjplayer.ElementScheduledController;
 
 ///
 alias CircleElementScheduledController = ElementScheduledController!(
diff --git a/sjplayer/src/sjplayer/ElementScheduledController.d b/sjplayer/src/sjplayer/ElementScheduledController.d
index aeadbd5..dcfbc3b 100644
--- a/sjplayer/src/sjplayer/ElementScheduledController.d
+++ b/sjplayer/src/sjplayer/ElementScheduledController.d
@@ -1,18 +1,26 @@
 /// License: MIT
 module sjplayer.ElementScheduledController;
 
-import std.traits,
+import std.algorithm,
+       std.array,
+       std.conv,
+       std.meta,
+       std.range.primitives,
+       std.traits,
        std.typecons;
 
 import gl4d;
 
 import sjscript;
 
-import sjplayer.ElementInterface,
+import sjplayer.ContextBuilderInterface,
+       sjplayer.ElementInterface,
+       sjplayer.ProgramSet,
        sjplayer.ScheduledControllerInterface,
        sjplayer.VarStoreInterface,
        sjplayer.util.MatrixFactory,
-       sjplayer.util.Parameter;
+       sjplayer.util.Parameter,
+       sjplayer.util.Period;
 
 ///
 class ElementScheduledController(
@@ -91,3 +99,81 @@ class ElementScheduledController(
     MatrixFactory matrix_factory_;
   }
 }
+
+///
+struct ElementScheduledControllerFactory(ScheduledController, ElementDrawer)
+  if (is(ScheduledController : ScheduledControllerInterface) &&
+      is(ElementDrawer : ElementDrawerInterface)) {
+ public:
+  /// ScheduledController's first constructor's first argument type.
+  alias Element =
+    Parameters!(__traits(getOverloads, ScheduledController, "__ctor")[0])[0];
+
+  static assert(is(Element : ElementInterface));
+
+  /// ElementDrawer's first constructor's first argument type.
+  alias ElementProgram =
+    Parameters!(__traits(getOverloads, ElementDrawer, "__ctor")[0])[0];
+
+  static assert(staticIndexOf!(
+        ElementProgram, ProgramSet.Programs.Types) >= 0);
+  static assert(is(Element[] :
+    Parameters!(__traits(getOverloads, ElementDrawer, "__ctor")[0])[1]));
+
+  ///
+  this(ProgramSet programs, VarStoreInterface varstore) {
+    program_  = programs.Get!ElementProgram;
+    varstore_ = varstore;
+  }
+
+  ///
+  void Create(R)(R params, ContextBuilderInterface builder)
+      if (isInputRange!R && is(ElementType!R == ParametersBlock)) {
+    auto parallelized = params.ParallelizeParams();
+    auto elements     = appender!(Element[]);
+
+    foreach (ref serial; parallelized) {
+      auto element = new Element;
+      elements    ~= element;
+      builder.AddElement(element);
+      builder.AddScheduledController(
+          new ScheduledController(element, varstore_, serial));
+    }
+    if (elements[].length > 0) {
+      builder.AddElementDrawer(new ElementDrawer(program_, elements[]));
+    }
+  }
+
+ private:
+  ElementProgram    program_;
+  VarStoreInterface varstore_;
+}
+
+private ParametersBlock[][] ParallelizeParams(R)(R params)
+    if (isInputRange!R && is(ElementType!R == ParametersBlock)) {
+  ParametersBlock[][] parallelized;
+  foreach (ref param; params) {
+    auto inserted = false;
+    foreach (ref serial; parallelized) {
+      const found_index = serial.
+        countUntil!(x => x.period.start > param.period.start);
+      const insert_index =
+        found_index >= 0? found_index.to!size_t: serial.length;
+
+      const intersect_prev = insert_index >= 1 &&
+        IsPeriodIntersectedToPeriod(serial[insert_index-1].period, param.period);
+      const intersect_next = insert_index < serial.length &&
+        IsPeriodIntersectedToPeriod(serial[insert_index].period, param.period);
+
+      if (!intersect_prev && !intersect_next) {
+        serial   = serial[0..insert_index]~ param ~serial[insert_index..$];
+        inserted = true;
+        break;
+      }
+    }
+    if (!inserted) {
+      parallelized ~= [param];
+    }
+  }
+  return parallelized;
+}
diff --git a/sjplayer/src/sjplayer/ScheduledControllerFactory.d b/sjplayer/src/sjplayer/ScheduledControllerFactory.d
deleted file mode 100644
index 0abd2f6..0000000
--- a/sjplayer/src/sjplayer/ScheduledControllerFactory.d
+++ /dev/null
@@ -1,96 +0,0 @@
-/// License: MIT
-module sjplayer.ScheduledControllerFactory;
-
-import std.algorithm,
-       std.array,
-       std.conv,
-       std.meta,
-       std.range.primitives,
-       std.traits;
-
-import sjscript;
-
-import sjplayer.ContextBuilderInterface,
-       sjplayer.ElementInterface,
-       sjplayer.ProgramSet,
-       sjplayer.ScheduledControllerInterface,
-       sjplayer.VarStoreInterface,
-       sjplayer.util.Period;
-
-///
-struct ElementScheduledControllerFactory(ScheduledController, ElementDrawer)
-  if (is(ScheduledController : ScheduledControllerInterface) &&
-      is(ElementDrawer : ElementDrawerInterface)) {
- public:
-  /// ScheduledController's first constructor's first argument type.
-  alias Element =
-    Parameters!(__traits(getOverloads, ScheduledController, "__ctor")[0])[0];
-
-  static assert(is(Element : ElementInterface));
-
-  /// ElementDrawer's first constructor's first argument type.
-  alias ElementProgram =
-    Parameters!(__traits(getOverloads, ElementDrawer, "__ctor")[0])[0];
-
-  static assert(staticIndexOf!(
-        ElementProgram, ProgramSet.Programs.Types) >= 0);
-  static assert(is(Element[] :
-    Parameters!(__traits(getOverloads, ElementDrawer, "__ctor")[0])[1]));
-
-  ///
-  this(ProgramSet programs, VarStoreInterface varstore) {
-    program_  = programs.Get!ElementProgram;
-    varstore_ = varstore;
-  }
-
-  ///
-  void Create(R)(R params, ContextBuilderInterface builder)
-      if (isInputRange!R && is(ElementType!R == ParametersBlock)) {
-    auto parallelized = params.ParallelizeParams();
-    auto elements     = appender!(Element[]);
-
-    foreach (ref serial; parallelized) {
-      auto element = new Element;
-      elements    ~= element;
-      builder.AddElement(element);
-      builder.AddScheduledController(
-          new ScheduledController(element, varstore_, serial));
-    }
-    if (elements[].length > 0) {
-      builder.AddElementDrawer(new ElementDrawer(program_, elements[]));
-    }
-  }
-
- private:
-  ElementProgram    program_;
-  VarStoreInterface varstore_;
-}
-
-private ParametersBlock[][] ParallelizeParams(R)(R params)
-    if (isInputRange!R && is(ElementType!R == ParametersBlock)) {
-  ParametersBlock[][] parallelized;
-  foreach (ref param; params) {
-    auto inserted = false;
-    foreach (ref serial; parallelized) {
-      const found_index = serial.
-        countUntil!(x => x.period.start > param.period.start);
-      const insert_index =
-        found_index >= 0? found_index.to!size_t: serial.length;
-
-      const intersect_prev = insert_index >= 1 &&
-        IsPeriodIntersectedToPeriod(serial[insert_index-1].period, param.period);
-      const intersect_next = insert_index < serial.length &&
-        IsPeriodIntersectedToPeriod(serial[insert_index].period, param.period);
-
-      if (!intersect_prev && !intersect_next) {
-        serial   = serial[0..insert_index]~ param ~serial[insert_index..$];
-        inserted = true;
-        break;
-      }
-    }
-    if (!inserted) {
-      parallelized ~= [param];
-    }
-  }
-  return parallelized;
-}