diff --git a/src/UICaption.cpp b/src/UICaption.cpp
index 9001333..5daddaf 100644
--- a/src/UICaption.cpp
+++ b/src/UICaption.cpp
@@ -13,10 +13,11 @@ UIDrawable* UICaption::click_at(sf::Vector2f point)
     return NULL;
 }
 
-void UICaption::render(sf::Vector2f offset)
+void UICaption::render(sf::Vector2f offset, sf::RenderTarget& target)
 {
     text.move(offset);
-    Resources::game->getWindow().draw(text);
+    //Resources::game->getWindow().draw(text);
+    target.draw(text);
     text.move(-offset);
 }
 
diff --git a/src/UICaption.h b/src/UICaption.h
index bf01a96..2dfdc17 100644
--- a/src/UICaption.h
+++ b/src/UICaption.h
@@ -7,7 +7,7 @@ class UICaption: public UIDrawable
 {
 public:
     sf::Text text;
-    void render(sf::Vector2f) override final;
+    void render(sf::Vector2f, sf::RenderTarget&) override final;
     PyObjectsEnum derived_type() override final;
     virtual UIDrawable* click_at(sf::Vector2f point) override final;
 
diff --git a/src/UIDrawable.cpp b/src/UIDrawable.cpp
index a710095..693d5f6 100644
--- a/src/UIDrawable.cpp
+++ b/src/UIDrawable.cpp
@@ -3,6 +3,7 @@
 #include "UICaption.h"
 #include "UISprite.h"
 #include "UIGrid.h"
+#include "GameEngine.h"
 
 UIDrawable::UIDrawable() { click_callable = NULL;  }
 
@@ -13,7 +14,7 @@ void UIDrawable::click_unregister()
 
 void UIDrawable::render()
 {
-    render(sf::Vector2f());
+    render(sf::Vector2f(), Resources::game->getWindow());
 }
 
 PyObject* UIDrawable::get_click(PyObject* self, void* closure) {
diff --git a/src/UIDrawable.h b/src/UIDrawable.h
index 4e636c5..595fc93 100644
--- a/src/UIDrawable.h
+++ b/src/UIDrawable.h
@@ -28,7 +28,8 @@ class UIDrawable
 {
 public:
     void render();
-    virtual void render(sf::Vector2f) = 0;
+    //virtual void render(sf::Vector2f) = 0;
+    virtual void render(sf::Vector2f, sf::RenderTarget&) = 0;
     virtual PyObjectsEnum derived_type() = 0;
 
     // Mouse input handling - callable object, methods to find event's destination
diff --git a/src/UIEntity.cpp b/src/UIEntity.cpp
index 01ebd83..d88fbe2 100644
--- a/src/UIEntity.cpp
+++ b/src/UIEntity.cpp
@@ -95,6 +95,10 @@ PyObject* sfVector2f_to_PyObject(sf::Vector2f vector) {
     return Py_BuildValue("(ff)", vector.x, vector.y);
 }
 
+PyObject* sfVector2i_to_PyObject(sf::Vector2i vector) {
+    return Py_BuildValue("(ii)", vector.x, vector.y);
+}
+
 sf::Vector2f PyObject_to_sfVector2f(PyObject* obj) {
     float x, y;
     if (!PyArg_ParseTuple(obj, "ff", &x, &y)) {
@@ -103,6 +107,14 @@ sf::Vector2f PyObject_to_sfVector2f(PyObject* obj) {
     return sf::Vector2f(x, y);
 }
 
+sf::Vector2i PyObject_to_sfVector2i(PyObject* obj) {
+    int x, y;
+    if (!PyArg_ParseTuple(obj, "ii", &x, &y)) {
+        return sf::Vector2i(); // TODO / reconsider this default: Return default vector on parse error
+    }
+    return sf::Vector2i(x, y);
+}
+
 // TODO - deprecate / remove this helper
 PyObject* UIGridPointState_to_PyObject(const UIGridPointState& state) {
     return PyObject_New(PyObject, (PyTypeObject*)PyObject_GetAttrString(McRFPy_API::mcrf_module, "GridPointState"));
@@ -125,11 +137,19 @@ PyObject* UIGridPointStateVector_to_PyList(const std::vector<UIGridPointState>&
 }
 
 PyObject* UIEntity::get_position(PyUIEntityObject* self, void* closure) {
-    return sfVector2f_to_PyObject(self->data->position);
+    if (reinterpret_cast<long>(closure) == 0) {
+        return sfVector2f_to_PyObject(self->data->position);
+    } else {
+        return sfVector2i_to_PyObject(self->data->collision_pos);
+    }
 }
 
 int UIEntity::set_position(PyUIEntityObject* self, PyObject* value, void* closure) {
-    self->data->position = PyObject_to_sfVector2f(value);
+    if (reinterpret_cast<long>(closure) == 0) {
+        self->data->position = PyObject_to_sfVector2f(value);
+    } else {
+        self->data->collision_pos = PyObject_to_sfVector2i(value);
+    }
     return 0;
 }
 
@@ -158,7 +178,8 @@ PyMethodDef UIEntity::methods[] = {
 };
 
 PyGetSetDef UIEntity::getsetters[] = {
-    {"position", (getter)UIEntity::get_position, (setter)UIEntity::set_position, "Entity position", NULL},
+    {"draw_pos", (getter)UIEntity::get_position, (setter)UIEntity::set_position, "Entity position (graphically)", (void*)0},
+    {"pos", (getter)UIEntity::get_position, (setter)UIEntity::set_position, "Entity position (integer grid coordinates)", (void*)1},
     {"gridstate", (getter)UIEntity::get_gridstate, NULL, "Grid point states for the entity", NULL},
     {"sprite_number", (getter)UIEntity::get_spritenumber, (setter)UIEntity::set_spritenumber, "Sprite number (index) on the texture on the display", NULL},
     {NULL}  /* Sentinel */
diff --git a/src/UIEntity.h b/src/UIEntity.h
index b5050ff..d65678c 100644
--- a/src/UIEntity.h
+++ b/src/UIEntity.h
@@ -40,7 +40,8 @@ public:
     std::vector<UIGridPointState> gridstate;
     UISprite sprite;
     sf::Vector2f position; //(x,y) in grid coordinates; float for animation
-    void render(sf::Vector2f); //override final;
+    sf::Vector2i collision_pos; //(x, y) in grid coordinates: int for collision
+    //void render(sf::Vector2f); //override final;
 
     UIEntity();
     UIEntity(UIGrid&);
diff --git a/src/UIFrame.cpp b/src/UIFrame.cpp
index 42adc47..f382127 100644
--- a/src/UIFrame.cpp
+++ b/src/UIFrame.cpp
@@ -44,14 +44,15 @@ PyObjectsEnum UIFrame::derived_type()
     return PyObjectsEnum::UIFRAME;
 }
 
-void UIFrame::render(sf::Vector2f offset)
+void UIFrame::render(sf::Vector2f offset, sf::RenderTarget& target)
 {
     box.move(offset);
-    Resources::game->getWindow().draw(box);
+    //Resources::game->getWindow().draw(box);
+    target.draw(box);
     box.move(-offset);
 
     for (auto drawable : *children) {
-        drawable->render(offset + box.getPosition());
+        drawable->render(offset + box.getPosition(), target);
     }
 }
 
diff --git a/src/UIFrame.h b/src/UIFrame.h
index 5875ad6..9cd5d10 100644
--- a/src/UIFrame.h
+++ b/src/UIFrame.h
@@ -28,7 +28,7 @@ public:
     sf::RectangleShape box;
     float outline;
     std::shared_ptr<std::vector<std::shared_ptr<UIDrawable>>> children;
-    void render(sf::Vector2f) override final;
+    void render(sf::Vector2f, sf::RenderTarget&) override final;
     void move(sf::Vector2f);
     PyObjectsEnum derived_type() override final;
     virtual UIDrawable* click_at(sf::Vector2f point) override final;
diff --git a/src/UIGrid.cpp b/src/UIGrid.cpp
index 15ad0a7..0ea7d94 100644
--- a/src/UIGrid.cpp
+++ b/src/UIGrid.cpp
@@ -32,9 +32,9 @@ UIGrid::UIGrid(int gx, int gy, std::shared_ptr<PyTexture> _ptex, sf::Vector2f _x
 void UIGrid::update() {}
 
 
-void UIGrid::render(sf::Vector2f)
+void UIGrid::render(sf::Vector2f offset, sf::RenderTarget& target)
 {
-    output.setPosition(box.getPosition()); // output sprite can move; update position when drawing
+    output.setPosition(box.getPosition() + offset); // output sprite can move; update position when drawing
     // output size can change; update size when drawing
     output.setTextureRect(
          sf::IntRect(0, 0,
@@ -172,7 +172,8 @@ void UIGrid::render(sf::Vector2f)
 
     // render to window
     renderTexture.display();
-    Resources::game->getWindow().draw(output);
+    //Resources::game->getWindow().draw(output);
+    target.draw(output);
 
 }
 
@@ -423,22 +424,6 @@ PyObject* UIGrid::get_children(PyUIGridObject* self, void* closure)
 
 PyObject* UIGrid::repr(PyUIGridObject* self)
 {
-
-//    if (member_ptr == 0) // x
-//        self->data->box.setPosition(val, self->data->box.getPosition().y);
-//    else if (member_ptr == 1) // y
-//        self->data->box.setPosition(self->data->box.getPosition().x, val);
-//    else if (member_ptr == 2) // w
-//        self->data->box.setSize(sf::Vector2f(val, self->data->box.getSize().y));
-//    else if (member_ptr == 3) // h
-//        self->data->box.setSize(sf::Vector2f(self->data->box.getSize().x, val));
-//    else if (member_ptr == 4) // center_x
-//        self->data->center_x = val;
-//    else if (member_ptr == 5) // center_y
-//        self->data->center_y = val;
-//    else if (member_ptr == 6) // zoom
-//        self->data->zoom = val;
-
     std::ostringstream ss;
     if (!self->data) ss << "<Grid (invalid internal object)>";
     else {
diff --git a/src/UIGrid.h b/src/UIGrid.h
index bb09152..625af98 100644
--- a/src/UIGrid.h
+++ b/src/UIGrid.h
@@ -26,7 +26,7 @@ public:
     //UIGrid(int, int, IndexTexture*, float, float, float, float);
     UIGrid(int, int, std::shared_ptr<PyTexture>, sf::Vector2f, sf::Vector2f);
     void update();
-    void render(sf::Vector2f) override final;
+    void render(sf::Vector2f, sf::RenderTarget&) override final;
     UIGridPoint& at(int, int);
     PyObjectsEnum derived_type() override final;
     //void setSprite(int);
diff --git a/src/UISprite.cpp b/src/UISprite.cpp
index 1f3a214..1441753 100644
--- a/src/UISprite.cpp
+++ b/src/UISprite.cpp
@@ -18,14 +18,16 @@ UISprite::UISprite(std::shared_ptr<PyTexture> _ptex, int _sprite_index, sf::Vect
     sprite = ptex->sprite(sprite_index, _pos, sf::Vector2f(_scale, _scale));
 }
 
+/*
 void UISprite::render(sf::Vector2f offset)
 {
     sprite.move(offset);
     Resources::game->getWindow().draw(sprite);
     sprite.move(-offset);
 }
+*/
 
-void UISprite::render(sf::Vector2f offset, sf::RenderTexture& target)
+void UISprite::render(sf::Vector2f offset, sf::RenderTarget& target)
 {
     sprite.move(offset);
     target.draw(sprite);
diff --git a/src/UISprite.h b/src/UISprite.h
index 917eec5..a831efd 100644
--- a/src/UISprite.h
+++ b/src/UISprite.h
@@ -25,10 +25,10 @@ public:
     UISprite();
     UISprite(std::shared_ptr<PyTexture>, int, sf::Vector2f, float);
     void update();
-    void render(sf::Vector2f) override final;
+    void render(sf::Vector2f, sf::RenderTarget&) override final;
     virtual UIDrawable* click_at(sf::Vector2f point) override final;
     
-    void render(sf::Vector2f, sf::RenderTexture&);
+    //void render(sf::Vector2f, sf::RenderTexture&);
 
     void setPosition(sf::Vector2f);
     sf::Vector2f getPosition();
diff --git a/src/scripts/game.py b/src/scripts/game.py
index 962fc91..43989b3 100644
--- a/src/scripts/game.py
+++ b/src/scripts/game.py
@@ -40,6 +40,7 @@ print("Lol, did it segfault?")
 s = mcrfpy.Sprite(25, 384+19, texture, 86, 9.0)
 # pos (LinkedVector / Vector):   s.pos
 # texture (Texture):             s.texture
+s.click = lambda *args, **kwargs: print("clicky", args, kwargs)
 
 # Grid
 g = mcrfpy.Grid(10, 10, texture, 512+25, 384+19, 462, 346)
@@ -54,6 +55,43 @@ g.zoom = 2.0
 
 [ui.append(d) for d in (f, c, s, g)]
 
+# Entity
+e = mcrfpy.Entity(5, 5, mcrfpy.default_texture, 86)
+e.pos = e.draw_pos # TODO - sync draw/collision positions on init
+g.entities.append(e)
+import random
+def wander(*args, **kwargs):
+    p = e.pos
+    new_p = (p[0] + random.randint(-1, 1), p[1] + random.randint(-1, 1))
+    if g.grid_size[0] >= new_p[0] >= 0 and g.grid_size[1] >= new_p[1] >= 0:
+        e.pos = new_p
+    #print(e.pos)
+
+mcrfpy.setTimer("wander", wander, 400)
+
+last_anim = None
+def anim(t, *args, **kwargs):
+    global last_anim
+    if last_anim is None:
+        last_anim = t
+        return
+    duration = t - last_anim
+
+    entity_speed = 1 / 250 # 250 milliseconds to move one square
+    if e.pos == e.draw_pos:
+        return
+    tx, ty = e.pos #"target" position - entity is already occupying that spot, animate them moving there.
+    dx, dy = e.draw_pos #"draw" position
+    newx = tx if (abs(dx - tx) < entity_speed * duration) else entity_speed * duration
+    if tx < dx: newx *= -1
+    newy = ty if (abs(dy - ty) < entity_speed * duration) else entity_speed * duration
+    if ty < dy: newx *= -1
+
+    print(f"({dx}, {dy}) -> ({tx}, {ty}) = ({newx}, {newy}) ; @{entity_speed} * {duration} = {entity_speed * duration}")
+    e.draw_pos = (newx, newy)
+
+mcrfpy.setTimer("anim", anim, 67)
+
 print("built!")
 
 # tests