Fix multiple low priority issues

closes #12, closes #80, closes #95, closes #96, closes #99

- Issue #12: Set tp_new to NULL for GridPoint and GridPointState to prevent instantiation from Python
- Issue #80: Renamed Caption.size to Caption.font_size for semantic clarity
- Issue #95: Fixed UICollection repr to show actual derived types instead of generic UIDrawable
- Issue #96: Added extend() method to UICollection for API consistency with UIEntityCollection
- Issue #99: Exposed read-only properties for Texture (sprite_width, sprite_height, sheet_width, sheet_height, sprite_count, source) and Font (family, source)

All issues have corresponding tests that verify the fixes work correctly.

src/PyFont.cpp

@@ -61,3 +61,19 @@ PyObject* PyFont::pynew(PyTypeObject* type, PyObject* args, PyObject* kwds)
 {
     return (PyObject*)type->tp_alloc(type, 0);
 }
+
+PyObject* PyFont::get_family(PyFontObject* self, void* closure)
+{
+    return PyUnicode_FromString(self->data->font.getInfo().family.c_str());
+}
+
+PyObject* PyFont::get_source(PyFontObject* self, void* closure)
+{
+    return PyUnicode_FromString(self->data->source.c_str());
+}
+
+PyGetSetDef PyFont::getsetters[] = {
+    {"family", (getter)PyFont::get_family, NULL, "Font family name", NULL},
+    {"source", (getter)PyFont::get_source, NULL, "Source filename of the font", NULL},
+    {NULL}  // Sentinel
+};

src/PyFont.h

@@ -21,6 +21,12 @@ public:
     static Py_hash_t hash(PyObject*);
     static int init(PyFontObject*, PyObject*, PyObject*);
     static PyObject* pynew(PyTypeObject* type, PyObject* args=NULL, PyObject* kwds=NULL);
+    
+    // Getters for properties
+    static PyObject* get_family(PyFontObject* self, void* closure);
+    static PyObject* get_source(PyFontObject* self, void* closure);
+    
+    static PyGetSetDef getsetters[];
 };
 
 namespace mcrfpydef {
@@ -33,6 +39,7 @@ namespace mcrfpydef {
         //.tp_hash = PyFont::hash,
         .tp_flags = Py_TPFLAGS_DEFAULT,
         .tp_doc = PyDoc_STR("SFML Font Object"),
+        .tp_getset = PyFont::getsetters,
         //.tp_base = &PyBaseObject_Type,
         .tp_init = (initproc)PyFont::init,
         .tp_new = PyType_GenericNew, //PyFont::pynew,

src/PyTexture.cpp

@@ -79,3 +79,43 @@ PyObject* PyTexture::pynew(PyTypeObject* type, PyObject* args, PyObject* kwds)
 {
     return (PyObject*)type->tp_alloc(type, 0);
 }
+
+PyObject* PyTexture::get_sprite_width(PyTextureObject* self, void* closure)
+{
+    return PyLong_FromLong(self->data->sprite_width);
+}
+
+PyObject* PyTexture::get_sprite_height(PyTextureObject* self, void* closure)
+{
+    return PyLong_FromLong(self->data->sprite_height);
+}
+
+PyObject* PyTexture::get_sheet_width(PyTextureObject* self, void* closure)
+{
+    return PyLong_FromLong(self->data->sheet_width);
+}
+
+PyObject* PyTexture::get_sheet_height(PyTextureObject* self, void* closure)
+{
+    return PyLong_FromLong(self->data->sheet_height);
+}
+
+PyObject* PyTexture::get_sprite_count(PyTextureObject* self, void* closure)
+{
+    return PyLong_FromLong(self->data->getSpriteCount());
+}
+
+PyObject* PyTexture::get_source(PyTextureObject* self, void* closure)
+{
+    return PyUnicode_FromString(self->data->source.c_str());
+}
+
+PyGetSetDef PyTexture::getsetters[] = {
+    {"sprite_width", (getter)PyTexture::get_sprite_width, NULL, "Width of each sprite in pixels", NULL},
+    {"sprite_height", (getter)PyTexture::get_sprite_height, NULL, "Height of each sprite in pixels", NULL},
+    {"sheet_width", (getter)PyTexture::get_sheet_width, NULL, "Number of sprite columns in the texture", NULL},
+    {"sheet_height", (getter)PyTexture::get_sheet_height, NULL, "Number of sprite rows in the texture", NULL},
+    {"sprite_count", (getter)PyTexture::get_sprite_count, NULL, "Total number of sprites in the texture", NULL},
+    {"source", (getter)PyTexture::get_source, NULL, "Source filename of the texture", NULL},
+    {NULL}  // Sentinel
+};

src/PyTexture.h

@@ -26,6 +26,16 @@ public:
     static Py_hash_t hash(PyObject*);
     static int init(PyTextureObject*, PyObject*, PyObject*);
     static PyObject* pynew(PyTypeObject* type, PyObject* args=NULL, PyObject* kwds=NULL);
+    
+    // Getters for properties
+    static PyObject* get_sprite_width(PyTextureObject* self, void* closure);
+    static PyObject* get_sprite_height(PyTextureObject* self, void* closure);
+    static PyObject* get_sheet_width(PyTextureObject* self, void* closure);
+    static PyObject* get_sheet_height(PyTextureObject* self, void* closure);
+    static PyObject* get_sprite_count(PyTextureObject* self, void* closure);
+    static PyObject* get_source(PyTextureObject* self, void* closure);
+    
+    static PyGetSetDef getsetters[];
 };
 
 namespace mcrfpydef {
@@ -38,6 +48,7 @@ namespace mcrfpydef {
         .tp_hash = PyTexture::hash,
         .tp_flags = Py_TPFLAGS_DEFAULT,
         .tp_doc = PyDoc_STR("SFML Texture Object"),
+        .tp_getset = PyTexture::getsetters,
         //.tp_base = &PyBaseObject_Type,
         .tp_init = (initproc)PyTexture::init,
         .tp_new = PyType_GenericNew, //PyTexture::pynew,

src/UICaption.cpp

@@ -197,7 +197,7 @@ PyGetSetDef UICaption::getsetters[] = {
     {"outline_color", (getter)UICaption::get_color_member, (setter)UICaption::set_color_member, "Outline color of the text", (void*)1},
     //{"children", (getter)PyUIFrame_get_children, NULL, "UICollection of objects on top of this one", NULL},
     {"text", (getter)UICaption::get_text, (setter)UICaption::set_text, "The text displayed", NULL},
-    {"size", (getter)UICaption::get_float_member, (setter)UICaption::set_float_member, "Text size (integer) in points", (void*)5},
+    {"font_size", (getter)UICaption::get_float_member, (setter)UICaption::set_float_member, "Font size (integer) in points", (void*)5},
     {"click", (getter)UIDrawable::get_click, (setter)UIDrawable::set_click, "Object called with (x, y, button) when clicked", (void*)PyObjectsEnum::UICAPTION},
     {"z_index", (getter)UIDrawable::get_int, (setter)UIDrawable::set_int, "Z-order for rendering (lower values rendered first)", (void*)PyObjectsEnum::UICAPTION},
     {NULL}
@@ -314,7 +314,7 @@ bool UICaption::setProperty(const std::string& name, float value) {
         text.setPosition(sf::Vector2f(text.getPosition().x, value));
         return true;
     }
-    else if (name == "size") {
+    else if (name == "font_size" || name == "size") { // Support both for backward compatibility
         text.setCharacterSize(static_cast<unsigned int>(value));
         return true;
     }
@@ -406,7 +406,7 @@ bool UICaption::getProperty(const std::string& name, float& value) const {
         value = text.getPosition().y;
         return true;
     }
-    else if (name == "size") {
+    else if (name == "font_size" || name == "size") { // Support both for backward compatibility
         value = static_cast<float>(text.getCharacterSize());
         return true;
     }

src/UICollection.cpp

@@ -615,6 +615,88 @@ PyObject* UICollection::append(PyUICollectionObject* self, PyObject* o)
     return Py_None;
 }
 
+PyObject* UICollection::extend(PyUICollectionObject* self, PyObject* iterable)
+{
+    // Accept any iterable of UIDrawable objects
+    PyObject* iterator = PyObject_GetIter(iterable);
+    if (iterator == NULL) {
+        PyErr_SetString(PyExc_TypeError, "UICollection.extend requires an iterable");
+        return NULL;
+    }
+    
+    // Ensure module is initialized
+    if (!McRFPy_API::mcrf_module) {
+        Py_DECREF(iterator);
+        PyErr_SetString(PyExc_RuntimeError, "mcrfpy module not initialized");
+        return NULL;
+    }
+    
+    // Get current highest z_index
+    int current_z_index = 0;
+    if (!self->data->empty()) {
+        current_z_index = self->data->back()->z_index;
+    }
+    
+    PyObject* item;
+    while ((item = PyIter_Next(iterator)) != NULL) {
+        // Check if item is a UIDrawable subclass
+        if (!PyObject_IsInstance(item, PyObject_GetAttrString(McRFPy_API::mcrf_module, "Frame")) &&
+            !PyObject_IsInstance(item, PyObject_GetAttrString(McRFPy_API::mcrf_module, "Sprite")) &&
+            !PyObject_IsInstance(item, PyObject_GetAttrString(McRFPy_API::mcrf_module, "Caption")) &&
+            !PyObject_IsInstance(item, PyObject_GetAttrString(McRFPy_API::mcrf_module, "Grid")))
+        {
+            Py_DECREF(item);
+            Py_DECREF(iterator);
+            PyErr_SetString(PyExc_TypeError, "All items must be Frame, Caption, Sprite, or Grid objects");
+            return NULL;
+        }
+        
+        // Increment z_index for each new element
+        if (current_z_index <= INT_MAX - 10) {
+            current_z_index += 10;
+        } else {
+            current_z_index = INT_MAX;
+        }
+        
+        // Add the item based on its type
+        if (PyObject_IsInstance(item, PyObject_GetAttrString(McRFPy_API::mcrf_module, "Frame"))) {
+            PyUIFrameObject* frame = (PyUIFrameObject*)item;
+            frame->data->z_index = current_z_index;
+            self->data->push_back(frame->data);
+        }
+        else if (PyObject_IsInstance(item, PyObject_GetAttrString(McRFPy_API::mcrf_module, "Caption"))) {
+            PyUICaptionObject* caption = (PyUICaptionObject*)item;
+            caption->data->z_index = current_z_index;
+            self->data->push_back(caption->data);
+        }
+        else if (PyObject_IsInstance(item, PyObject_GetAttrString(McRFPy_API::mcrf_module, "Sprite"))) {
+            PyUISpriteObject* sprite = (PyUISpriteObject*)item;
+            sprite->data->z_index = current_z_index;
+            self->data->push_back(sprite->data);
+        }
+        else if (PyObject_IsInstance(item, PyObject_GetAttrString(McRFPy_API::mcrf_module, "Grid"))) {
+            PyUIGridObject* grid = (PyUIGridObject*)item;
+            grid->data->z_index = current_z_index;
+            self->data->push_back(grid->data);
+        }
+        
+        Py_DECREF(item);
+    }
+    
+    Py_DECREF(iterator);
+    
+    // Check if iteration ended due to an error
+    if (PyErr_Occurred()) {
+        return NULL;
+    }
+    
+    // Mark scene as needing resort after adding elements
+    McRFPy_API::markSceneNeedsSort();
+    
+    Py_INCREF(Py_None);
+    return Py_None;
+}
+
 PyObject* UICollection::remove(PyUICollectionObject* self, PyObject* o)
 {
 	if (!PyLong_Check(o))
@@ -734,7 +816,7 @@ PyObject* UICollection::count(PyUICollectionObject* self, PyObject* value) {
 
 PyMethodDef UICollection::methods[] = {
 	{"append", (PyCFunction)UICollection::append, METH_O},
-    //{"extend", (PyCFunction)PyUICollection_extend, METH_O}, // TODO
+	{"extend", (PyCFunction)UICollection::extend, METH_O},
 	{"remove", (PyCFunction)UICollection::remove, METH_O},
 	{"index", (PyCFunction)UICollection::index_method, METH_O},
 	{"count", (PyCFunction)UICollection::count, METH_O},
@@ -746,7 +828,47 @@ PyObject* UICollection::repr(PyUICollectionObject* self)
 	std::ostringstream ss;
 	if (!self->data) ss << "<UICollection (invalid internal object)>";
 	else {
-	    ss << "<UICollection (" << self->data->size() << " child objects)>";
+	    ss << "<UICollection (" << self->data->size() << " objects: ";
+	    
+	    // Count each type
+	    int frame_count = 0, caption_count = 0, sprite_count = 0, grid_count = 0, other_count = 0;
+	    for (auto& item : *self->data) {
+	        switch(item->derived_type()) {
+	            case PyObjectsEnum::UIFRAME: frame_count++; break;
+	            case PyObjectsEnum::UICAPTION: caption_count++; break;
+	            case PyObjectsEnum::UISPRITE: sprite_count++; break;
+	            case PyObjectsEnum::UIGRID: grid_count++; break;
+	            default: other_count++; break;
+	        }
+	    }
+	    
+	    // Build type summary
+	    bool first = true;
+	    if (frame_count > 0) {
+	        ss << frame_count << " Frame" << (frame_count > 1 ? "s" : "");
+	        first = false;
+	    }
+	    if (caption_count > 0) {
+	        if (!first) ss << ", ";
+	        ss << caption_count << " Caption" << (caption_count > 1 ? "s" : "");
+	        first = false;
+	    }
+	    if (sprite_count > 0) {
+	        if (!first) ss << ", ";
+	        ss << sprite_count << " Sprite" << (sprite_count > 1 ? "s" : "");
+	        first = false;
+	    }
+	    if (grid_count > 0) {
+	        if (!first) ss << ", ";
+	        ss << grid_count << " Grid" << (grid_count > 1 ? "s" : "");
+	        first = false;
+	    }
+	    if (other_count > 0) {
+	        if (!first) ss << ", ";
+	        ss << other_count << " UIDrawable" << (other_count > 1 ? "s" : "");
+	    }
+	    
+	    ss << ")>";
 	}
 	std::string repr_str = ss.str();
 	return PyUnicode_DecodeUTF8(repr_str.c_str(), repr_str.size(), "replace");

src/UICollection.h

@@ -28,6 +28,7 @@ public:
 	static PyObject* subscript(PyUICollectionObject* self, PyObject* key);
 	static int ass_subscript(PyUICollectionObject* self, PyObject* key, PyObject* value);
 	static PyObject* append(PyUICollectionObject* self, PyObject* o);
+	static PyObject* extend(PyUICollectionObject* self, PyObject* iterable);
 	static PyObject* remove(PyUICollectionObject* self, PyObject* o);
 	static PyObject* index_method(PyUICollectionObject* self, PyObject* value);
 	static PyObject* count(PyUICollectionObject* self, PyObject* value);

src/UIGridPoint.h

@@ -75,7 +75,7 @@ namespace mcrfpydef {
         .tp_doc = "UIGridPoint object",
         .tp_getset = UIGridPoint::getsetters,
         //.tp_init = (initproc)PyUIGridPoint_init, // TODO Define the init function
-        .tp_new = PyType_GenericNew,
+        .tp_new = NULL, // Prevent instantiation from Python - Issue #12
     };
 
     static PyTypeObject PyUIGridPointStateType = {
@@ -87,6 +87,6 @@ namespace mcrfpydef {
         .tp_flags = Py_TPFLAGS_DEFAULT,
         .tp_doc = "UIGridPointState object", // TODO: Add PyUIGridPointState tp_init
         .tp_getset = UIGridPointState::getsetters,
-        .tp_new = PyType_GenericNew,
+        .tp_new = NULL, // Prevent instantiation from Python - Issue #12
     };
 }

tests/issue_12_gridpoint_instantiation_test.py

@@ -0,0 +1,136 @@
+#!/usr/bin/env python3
+"""
+Test for Issue #12: Forbid GridPoint/GridPointState instantiation
+
+This test verifies that GridPoint and GridPointState cannot be instantiated
+directly from Python, as they should only be created internally by the C++ code.
+"""
+
+import mcrfpy
+import sys
+
+def test_gridpoint_instantiation():
+    """Test that GridPoint and GridPointState cannot be instantiated"""
+    print("=== Testing GridPoint/GridPointState Instantiation Prevention (Issue #12) ===\n")
+    
+    tests_passed = 0
+    tests_total = 0
+    
+    # Test 1: Try to instantiate GridPoint
+    print("--- Test 1: GridPoint instantiation ---")
+    tests_total += 1
+    try:
+        point = mcrfpy.GridPoint()
+        print("✗ FAIL: GridPoint() should not be allowed")
+    except TypeError as e:
+        print(f"✓ PASS: GridPoint instantiation correctly prevented: {e}")
+        tests_passed += 1
+    except Exception as e:
+        print(f"✗ FAIL: Unexpected error: {e}")
+    
+    # Test 2: Try to instantiate GridPointState
+    print("\n--- Test 2: GridPointState instantiation ---")
+    tests_total += 1
+    try:
+        state = mcrfpy.GridPointState()
+        print("✗ FAIL: GridPointState() should not be allowed")
+    except TypeError as e:
+        print(f"✓ PASS: GridPointState instantiation correctly prevented: {e}")
+        tests_passed += 1
+    except Exception as e:
+        print(f"✗ FAIL: Unexpected error: {e}")
+    
+    # Test 3: Verify GridPoint can still be obtained from Grid
+    print("\n--- Test 3: GridPoint obtained from Grid.at() ---")
+    tests_total += 1
+    try:
+        grid = mcrfpy.Grid(10, 10)
+        point = grid.at(5, 5)
+        print(f"✓ PASS: GridPoint obtained from Grid.at(): {point}")
+        print(f"  Type: {type(point).__name__}")
+        tests_passed += 1
+    except Exception as e:
+        print(f"✗ FAIL: Could not get GridPoint from Grid: {e}")
+    
+    # Test 4: Verify GridPointState can still be obtained from GridPoint
+    print("\n--- Test 4: GridPointState obtained from GridPoint ---")
+    tests_total += 1
+    try:
+        # GridPointState is accessed through GridPoint's click handler
+        # Let's check if we can access point properties that would use GridPointState
+        if hasattr(point, 'walkable'):
+            print(f"✓ PASS: GridPoint has expected properties")
+            print(f"  walkable: {point.walkable}")
+            print(f"  transparent: {point.transparent}")
+            tests_passed += 1
+        else:
+            print("✗ FAIL: GridPoint missing expected properties")
+    except Exception as e:
+        print(f"✗ FAIL: Error accessing GridPoint properties: {e}")
+    
+    # Test 5: Try to call the types directly (alternative syntax)
+    print("\n--- Test 5: Alternative instantiation attempts ---")
+    tests_total += 1
+    all_prevented = True
+    
+    # Try various ways to instantiate
+    attempts = [
+        ("mcrfpy.GridPoint.__new__(mcrfpy.GridPoint)", 
+         lambda: mcrfpy.GridPoint.__new__(mcrfpy.GridPoint)),
+        ("type(point)()", 
+         lambda: type(point)() if 'point' in locals() else None),
+    ]
+    
+    for desc, func in attempts:
+        try:
+            if func:
+                result = func()
+                print(f"✗ FAIL: {desc} should not be allowed")
+                all_prevented = False
+        except (TypeError, AttributeError) as e:
+            print(f"  ✓ Correctly prevented: {desc}")
+        except Exception as e:
+            print(f"  ? Unexpected error for {desc}: {e}")
+    
+    if all_prevented:
+        print("✓ PASS: All alternative instantiation attempts prevented")
+        tests_passed += 1
+    else:
+        print("✗ FAIL: Some instantiation attempts succeeded")
+    
+    # Summary
+    print(f"\n=== SUMMARY ===")
+    print(f"Tests passed: {tests_passed}/{tests_total}")
+    
+    if tests_passed == tests_total:
+        print("\nIssue #12 FIXED: GridPoint/GridPointState instantiation properly forbidden!")
+    else:
+        print("\nIssue #12: Some tests failed")
+    
+    return tests_passed == tests_total
+
+def run_test(runtime):
+    """Timer callback to run the test"""
+    try:
+        # First verify the types exist
+        print("Checking that GridPoint and GridPointState types exist...")
+        print(f"GridPoint type: {mcrfpy.GridPoint}")
+        print(f"GridPointState type: {mcrfpy.GridPointState}")
+        print()
+        
+        success = test_gridpoint_instantiation()
+        print("\nOverall result: " + ("PASS" if success else "FAIL"))
+    except Exception as e:
+        print(f"\nTest error: {e}")
+        import traceback
+        traceback.print_exc()
+        print("\nOverall result: FAIL")
+    
+    sys.exit(0)
+
+# Set up the test scene
+mcrfpy.createScene("test")
+mcrfpy.setScene("test")
+
+# Schedule test to run after game loop starts
+mcrfpy.setTimer("test", run_test, 100)

tests/issue_80_caption_font_size_test.py

@@ -0,0 +1,156 @@
+#!/usr/bin/env python3
+"""
+Test for Issue #80: Rename Caption.size to font_size
+
+This test verifies that Caption now uses font_size property instead of size,
+while maintaining backward compatibility.
+"""
+
+import mcrfpy
+import sys
+
+def test_caption_font_size():
+    """Test Caption font_size property"""
+    print("=== Testing Caption font_size Property (Issue #80) ===\n")
+    
+    tests_passed = 0
+    tests_total = 0
+    
+    # Create a caption for testing
+    caption = mcrfpy.Caption((100, 100), "Test Text", mcrfpy.Font("assets/JetbrainsMono.ttf"))
+    
+    # Test 1: Check that font_size property exists and works
+    print("--- Test 1: font_size property ---")
+    tests_total += 1
+    try:
+        # Set font size using new property name
+        caption.font_size = 24
+        if caption.font_size == 24:
+            print("✓ PASS: font_size property works correctly")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: font_size is {caption.font_size}, expected 24")
+    except AttributeError as e:
+        print(f"✗ FAIL: font_size property not found: {e}")
+    
+    # Test 2: Check that old 'size' property is removed
+    print("\n--- Test 2: Old 'size' property removed ---")
+    tests_total += 1
+    try:
+        # Try to access size property - this should fail
+        old_size = caption.size
+        print(f"✗ FAIL: 'size' property still accessible (value: {old_size}) - should be removed")
+    except AttributeError:
+        print("✓ PASS: 'size' property correctly removed")
+        tests_passed += 1
+    
+    # Test 3: Verify font_size changes are reflected
+    print("\n--- Test 3: font_size changes ---")
+    tests_total += 1
+    caption.font_size = 36
+    if caption.font_size == 36:
+        print("✓ PASS: font_size changes are reflected correctly")
+        tests_passed += 1
+    else:
+        print(f"✗ FAIL: font_size is {caption.font_size}, expected 36")
+    
+    # Test 4: Check property type
+    print("\n--- Test 4: Property type check ---")
+    tests_total += 1
+    caption.font_size = 18
+    if isinstance(caption.font_size, int):
+        print("✓ PASS: font_size returns integer as expected")
+        tests_passed += 1
+    else:
+        print(f"✗ FAIL: font_size returns {type(caption.font_size).__name__}, expected int")
+    
+    # Test 5: Verify in __dir__
+    print("\n--- Test 5: Property introspection ---")
+    tests_total += 1
+    properties = dir(caption)
+    if 'font_size' in properties:
+        print("✓ PASS: 'font_size' appears in dir(caption)")
+        tests_passed += 1
+    else:
+        print("✗ FAIL: 'font_size' not found in dir(caption)")
+    
+    # Check if 'size' still appears
+    if 'size' in properties:
+        print("  INFO: 'size' still appears in dir(caption) - backward compatibility maintained")
+    else:
+        print("  INFO: 'size' removed from dir(caption) - breaking change")
+    
+    # Test 6: Edge cases
+    print("\n--- Test 6: Edge cases ---")
+    tests_total += 1
+    all_passed = True
+    
+    # Test setting to 0
+    caption.font_size = 0
+    if caption.font_size != 0:
+        print(f"✗ FAIL: Setting font_size to 0 failed (got {caption.font_size})")
+        all_passed = False
+    
+    # Test setting to large value
+    caption.font_size = 100
+    if caption.font_size != 100:
+        print(f"✗ FAIL: Setting font_size to 100 failed (got {caption.font_size})")
+        all_passed = False
+    
+    # Test float to int conversion
+    caption.font_size = 24.7
+    if caption.font_size != 24:
+        print(f"✗ FAIL: Float to int conversion failed (got {caption.font_size})")
+        all_passed = False
+    
+    if all_passed:
+        print("✓ PASS: All edge cases handled correctly")
+        tests_passed += 1
+    else:
+        print("✗ FAIL: Some edge cases failed")
+    
+    # Test 7: Scene UI integration
+    print("\n--- Test 7: Scene UI integration ---")
+    tests_total += 1
+    try:
+        scene_ui = mcrfpy.sceneUI("test")
+        scene_ui.append(caption)
+        
+        # Modify font_size after adding to scene
+        caption.font_size = 32
+        
+        print("✓ PASS: Caption with font_size works in scene UI")
+        tests_passed += 1
+    except Exception as e:
+        print(f"✗ FAIL: Scene UI integration failed: {e}")
+    
+    # Summary
+    print(f"\n=== SUMMARY ===")
+    print(f"Tests passed: {tests_passed}/{tests_total}")
+    
+    if tests_passed == tests_total:
+        print("\nIssue #80 FIXED: Caption.size successfully renamed to font_size!")
+    else:
+        print("\nIssue #80: Some tests failed")
+    
+    return tests_passed == tests_total
+
+def run_test(runtime):
+    """Timer callback to run the test"""
+    try:
+        success = test_caption_font_size()
+        print("\nOverall result: " + ("PASS" if success else "FAIL"))
+    except Exception as e:
+        print(f"\nTest error: {e}")
+        import traceback
+        traceback.print_exc()
+        print("\nOverall result: FAIL")
+    
+    sys.exit(0)
+
+# Set up the test scene
+mcrfpy.createScene("test")
+mcrfpy.setScene("test")
+
+# Schedule test to run after game loop starts
+mcrfpy.setTimer("test", run_test, 100)

tests/issue_95_uicollection_repr_test.py

@@ -0,0 +1,169 @@
+#!/usr/bin/env python3
+"""
+Test for Issue #95: Fix UICollection __repr__ type display
+
+This test verifies that UICollection's repr shows the actual types of contained
+objects instead of just showing them all as "UIDrawable".
+"""
+
+import mcrfpy
+import sys
+
+def test_uicollection_repr():
+    """Test UICollection repr shows correct types"""
+    print("=== Testing UICollection __repr__ Type Display (Issue #95) ===\n")
+    
+    tests_passed = 0
+    tests_total = 0
+    
+    # Get scene UI collection
+    scene_ui = mcrfpy.sceneUI("test")
+    
+    # Test 1: Empty collection
+    print("--- Test 1: Empty collection ---")
+    tests_total += 1
+    repr_str = repr(scene_ui)
+    print(f"Empty collection repr: {repr_str}")
+    if "0 objects" in repr_str:
+        print("✓ PASS: Empty collection shows correctly")
+        tests_passed += 1
+    else:
+        print("✗ FAIL: Empty collection repr incorrect")
+    
+    # Test 2: Add various UI elements
+    print("\n--- Test 2: Mixed UI elements ---")
+    tests_total += 1
+    
+    # Add Frame
+    frame = mcrfpy.Frame(10, 10, 100, 100)
+    scene_ui.append(frame)
+    
+    # Add Caption
+    caption = mcrfpy.Caption((150, 50), "Test", mcrfpy.Font("assets/JetbrainsMono.ttf"))
+    scene_ui.append(caption)
+    
+    # Add Sprite
+    sprite = mcrfpy.Sprite(200, 100)
+    scene_ui.append(sprite)
+    
+    # Add Grid
+    grid = mcrfpy.Grid(10, 10)
+    grid.x = 300
+    grid.y = 100
+    scene_ui.append(grid)
+    
+    # Check repr
+    repr_str = repr(scene_ui)
+    print(f"Collection repr: {repr_str}")
+    
+    # Verify it shows the correct types
+    expected_types = ["1 Frame", "1 Caption", "1 Sprite", "1 Grid"]
+    all_found = all(expected in repr_str for expected in expected_types)
+    
+    if all_found and "UIDrawable" not in repr_str:
+        print("✓ PASS: All types shown correctly, no generic UIDrawable")
+        tests_passed += 1
+    else:
+        print("✗ FAIL: Types not shown correctly")
+        for expected in expected_types:
+            if expected in repr_str:
+                print(f"  ✓ Found: {expected}")
+            else:
+                print(f"  ✗ Missing: {expected}")
+        if "UIDrawable" in repr_str:
+            print("  ✗ Still shows generic UIDrawable")
+    
+    # Test 3: Multiple of same type
+    print("\n--- Test 3: Multiple objects of same type ---")
+    tests_total += 1
+    
+    # Add more frames
+    frame2 = mcrfpy.Frame(10, 120, 100, 100)
+    frame3 = mcrfpy.Frame(10, 230, 100, 100)
+    scene_ui.append(frame2)
+    scene_ui.append(frame3)
+    
+    repr_str = repr(scene_ui)
+    print(f"Collection repr: {repr_str}")
+    
+    if "3 Frames" in repr_str:
+        print("✓ PASS: Plural form shown correctly for multiple Frames")
+        tests_passed += 1
+    else:
+        print("✗ FAIL: Plural form not correct")
+    
+    # Test 4: Check total count
+    print("\n--- Test 4: Total count verification ---")
+    tests_total += 1
+    
+    # Should have: 3 Frames, 1 Caption, 1 Sprite, 1 Grid = 6 total
+    if "6 objects:" in repr_str:
+        print("✓ PASS: Total count shown correctly")
+        tests_passed += 1
+    else:
+        print("✗ FAIL: Total count incorrect")
+    
+    # Test 5: Nested collections (Frame with children)
+    print("\n--- Test 5: Nested collections ---")
+    tests_total += 1
+    
+    # Add child to frame
+    child_sprite = mcrfpy.Sprite(10, 10)
+    frame.children.append(child_sprite)
+    
+    # Check frame's children collection
+    children_repr = repr(frame.children)
+    print(f"Frame children repr: {children_repr}")
+    
+    if "1 Sprite" in children_repr:
+        print("✓ PASS: Nested collection shows correct type")
+        tests_passed += 1
+    else:
+        print("✗ FAIL: Nested collection type incorrect")
+    
+    # Test 6: Collection remains valid after modifications
+    print("\n--- Test 6: Collection after modifications ---")
+    tests_total += 1
+    
+    # Remove an item
+    scene_ui.remove(0)  # Remove first frame
+    
+    repr_str = repr(scene_ui)
+    print(f"After removal repr: {repr_str}")
+    
+    if "2 Frames" in repr_str and "5 objects:" in repr_str:
+        print("✓ PASS: Collection repr updated correctly after removal")
+        tests_passed += 1
+    else:
+        print("✗ FAIL: Collection repr not updated correctly")
+    
+    # Summary
+    print(f"\n=== SUMMARY ===")
+    print(f"Tests passed: {tests_passed}/{tests_total}")
+    
+    if tests_passed == tests_total:
+        print("\nIssue #95 FIXED: UICollection __repr__ now shows correct types!")
+    else:
+        print("\nIssue #95: Some tests failed")
+    
+    return tests_passed == tests_total
+
+def run_test(runtime):
+    """Timer callback to run the test"""
+    try:
+        success = test_uicollection_repr()
+        print("\nOverall result: " + ("PASS" if success else "FAIL"))
+    except Exception as e:
+        print(f"\nTest error: {e}")
+        import traceback
+        traceback.print_exc()
+        print("\nOverall result: FAIL")
+    
+    sys.exit(0)
+
+# Set up the test scene
+mcrfpy.createScene("test")
+mcrfpy.setScene("test")
+
+# Schedule test to run after game loop starts
+mcrfpy.setTimer("test", run_test, 100)

tests/issue_96_uicollection_extend_test.py

@@ -0,0 +1,205 @@
+#!/usr/bin/env python3
+"""
+Test for Issue #96: Add extend() method to UICollection
+
+This test verifies that UICollection now has an extend() method similar to
+UIEntityCollection.extend().
+"""
+
+import mcrfpy
+import sys
+
+def test_uicollection_extend():
+    """Test UICollection extend method"""
+    print("=== Testing UICollection extend() Method (Issue #96) ===\n")
+    
+    tests_passed = 0
+    tests_total = 0
+    
+    # Get scene UI collection
+    scene_ui = mcrfpy.sceneUI("test")
+    
+    # Test 1: Basic extend with list
+    print("--- Test 1: Extend with list ---")
+    tests_total += 1
+    try:
+        # Create a list of UI elements
+        elements = [
+            mcrfpy.Frame(10, 10, 100, 100),
+            mcrfpy.Caption((150, 50), "Test1", mcrfpy.Font("assets/JetbrainsMono.ttf")),
+            mcrfpy.Sprite(200, 100)
+        ]
+        
+        # Extend the collection
+        scene_ui.extend(elements)
+        
+        if len(scene_ui) == 3:
+            print("✓ PASS: Extended collection with 3 elements")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: Expected 3 elements, got {len(scene_ui)}")
+    except Exception as e:
+        print(f"✗ FAIL: Error extending with list: {e}")
+    
+    # Test 2: Extend with tuple
+    print("\n--- Test 2: Extend with tuple ---")
+    tests_total += 1
+    try:
+        # Create a tuple of UI elements
+        more_elements = (
+            mcrfpy.Grid(10, 10),
+            mcrfpy.Frame(300, 10, 100, 100)
+        )
+        
+        # Extend the collection
+        scene_ui.extend(more_elements)
+        
+        if len(scene_ui) == 5:
+            print("✓ PASS: Extended collection with tuple (now 5 elements)")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: Expected 5 elements, got {len(scene_ui)}")
+    except Exception as e:
+        print(f"✗ FAIL: Error extending with tuple: {e}")
+    
+    # Test 3: Extend with generator
+    print("\n--- Test 3: Extend with generator ---")
+    tests_total += 1
+    try:
+        # Create a generator of UI elements
+        def create_sprites():
+            for i in range(3):
+                yield mcrfpy.Sprite(50 + i*50, 200)
+        
+        # Extend with generator
+        scene_ui.extend(create_sprites())
+        
+        if len(scene_ui) == 8:
+            print("✓ PASS: Extended collection with generator (now 8 elements)")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: Expected 8 elements, got {len(scene_ui)}")
+    except Exception as e:
+        print(f"✗ FAIL: Error extending with generator: {e}")
+    
+    # Test 4: Error handling - non-iterable
+    print("\n--- Test 4: Error handling - non-iterable ---")
+    tests_total += 1
+    try:
+        scene_ui.extend(42)  # Not iterable
+        print("✗ FAIL: Should have raised TypeError for non-iterable")
+    except TypeError as e:
+        print(f"✓ PASS: Correctly raised TypeError: {e}")
+        tests_passed += 1
+    except Exception as e:
+        print(f"✗ FAIL: Wrong exception type: {e}")
+    
+    # Test 5: Error handling - wrong element type
+    print("\n--- Test 5: Error handling - wrong element type ---")
+    tests_total += 1
+    try:
+        scene_ui.extend([1, 2, 3])  # Wrong types
+        print("✗ FAIL: Should have raised TypeError for non-UIDrawable elements")
+    except TypeError as e:
+        print(f"✓ PASS: Correctly raised TypeError: {e}")
+        tests_passed += 1
+    except Exception as e:
+        print(f"✗ FAIL: Wrong exception type: {e}")
+    
+    # Test 6: Extend empty iterable
+    print("\n--- Test 6: Extend with empty list ---")
+    tests_total += 1
+    try:
+        initial_len = len(scene_ui)
+        scene_ui.extend([])  # Empty list
+        
+        if len(scene_ui) == initial_len:
+            print("✓ PASS: Extending with empty list works correctly")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: Length changed from {initial_len} to {len(scene_ui)}")
+    except Exception as e:
+        print(f"✗ FAIL: Error extending with empty list: {e}")
+    
+    # Test 7: Z-index ordering
+    print("\n--- Test 7: Z-index ordering ---")
+    tests_total += 1
+    try:
+        # Clear and add fresh elements
+        while len(scene_ui) > 0:
+            scene_ui.remove(0)
+        
+        # Add some initial elements
+        frame1 = mcrfpy.Frame(0, 0, 50, 50)
+        scene_ui.append(frame1)
+        
+        # Extend with more elements
+        new_elements = [
+            mcrfpy.Frame(60, 0, 50, 50),
+            mcrfpy.Caption((120, 25), "Test", mcrfpy.Font("assets/JetbrainsMono.ttf"))
+        ]
+        scene_ui.extend(new_elements)
+        
+        # Check z-indices are properly assigned
+        z_indices = [scene_ui[i].z_index for i in range(3)]
+        
+        # Z-indices should be increasing
+        if z_indices[0] < z_indices[1] < z_indices[2]:
+            print(f"✓ PASS: Z-indices properly ordered: {z_indices}")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: Z-indices not properly ordered: {z_indices}")
+    except Exception as e:
+        print(f"✗ FAIL: Error checking z-indices: {e}")
+    
+    # Test 8: Extend with another UICollection
+    print("\n--- Test 8: Extend with another UICollection ---")
+    tests_total += 1
+    try:
+        # Create a Frame with children
+        frame_with_children = mcrfpy.Frame(200, 200, 100, 100)
+        frame_with_children.children.append(mcrfpy.Sprite(10, 10))
+        frame_with_children.children.append(mcrfpy.Caption((10, 50), "Child", mcrfpy.Font("assets/JetbrainsMono.ttf")))
+        
+        # Try to extend scene_ui with the frame's children collection
+        initial_len = len(scene_ui)
+        scene_ui.extend(frame_with_children.children)
+        
+        if len(scene_ui) == initial_len + 2:
+            print("✓ PASS: Extended with another UICollection")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: Expected {initial_len + 2} elements, got {len(scene_ui)}")
+    except Exception as e:
+        print(f"✗ FAIL: Error extending with UICollection: {e}")
+    
+    # Summary
+    print(f"\n=== SUMMARY ===")
+    print(f"Tests passed: {tests_passed}/{tests_total}")
+    
+    if tests_passed == tests_total:
+        print("\nIssue #96 FIXED: UICollection.extend() implemented successfully!")
+    else:
+        print("\nIssue #96: Some tests failed")
+    
+    return tests_passed == tests_total
+
+def run_test(runtime):
+    """Timer callback to run the test"""
+    try:
+        success = test_uicollection_extend()
+        print("\nOverall result: " + ("PASS" if success else "FAIL"))
+    except Exception as e:
+        print(f"\nTest error: {e}")
+        import traceback
+        traceback.print_exc()
+        print("\nOverall result: FAIL")
+    
+    sys.exit(0)
+
+# Set up the test scene
+mcrfpy.createScene("test")
+mcrfpy.setScene("test")
+
+# Schedule test to run after game loop starts
+mcrfpy.setTimer("test", run_test, 100)

tests/issue_99_texture_font_properties_test.py

@@ -0,0 +1,224 @@
+#!/usr/bin/env python3
+"""
+Test for Issue #99: Expose Texture and Font properties
+
+This test verifies that Texture and Font objects now expose their properties
+as read-only attributes.
+"""
+
+import mcrfpy
+import sys
+
+def test_texture_properties():
+    """Test Texture properties"""
+    print("=== Testing Texture Properties ===")
+    
+    tests_passed = 0
+    tests_total = 0
+    
+    # Create a texture
+    texture = mcrfpy.Texture("assets/kenney_tinydungeon.png", 16, 16)
+    
+    # Test 1: sprite_width property
+    tests_total += 1
+    try:
+        width = texture.sprite_width
+        if width == 16:
+            print(f"✓ PASS: sprite_width = {width}")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: sprite_width = {width}, expected 16")
+    except AttributeError as e:
+        print(f"✗ FAIL: sprite_width not accessible: {e}")
+    
+    # Test 2: sprite_height property
+    tests_total += 1
+    try:
+        height = texture.sprite_height
+        if height == 16:
+            print(f"✓ PASS: sprite_height = {height}")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: sprite_height = {height}, expected 16")
+    except AttributeError as e:
+        print(f"✗ FAIL: sprite_height not accessible: {e}")
+    
+    # Test 3: sheet_width property
+    tests_total += 1
+    try:
+        sheet_w = texture.sheet_width
+        if isinstance(sheet_w, int) and sheet_w > 0:
+            print(f"✓ PASS: sheet_width = {sheet_w}")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: sheet_width invalid: {sheet_w}")
+    except AttributeError as e:
+        print(f"✗ FAIL: sheet_width not accessible: {e}")
+    
+    # Test 4: sheet_height property
+    tests_total += 1
+    try:
+        sheet_h = texture.sheet_height
+        if isinstance(sheet_h, int) and sheet_h > 0:
+            print(f"✓ PASS: sheet_height = {sheet_h}")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: sheet_height invalid: {sheet_h}")
+    except AttributeError as e:
+        print(f"✗ FAIL: sheet_height not accessible: {e}")
+    
+    # Test 5: sprite_count property
+    tests_total += 1
+    try:
+        count = texture.sprite_count
+        expected = texture.sheet_width * texture.sheet_height
+        if count == expected:
+            print(f"✓ PASS: sprite_count = {count} (sheet_width * sheet_height)")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: sprite_count = {count}, expected {expected}")
+    except AttributeError as e:
+        print(f"✗ FAIL: sprite_count not accessible: {e}")
+    
+    # Test 6: source property
+    tests_total += 1
+    try:
+        source = texture.source
+        if "kenney_tinydungeon.png" in source:
+            print(f"✓ PASS: source = '{source}'")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: source unexpected: '{source}'")
+    except AttributeError as e:
+        print(f"✗ FAIL: source not accessible: {e}")
+    
+    # Test 7: Properties are read-only
+    tests_total += 1
+    try:
+        texture.sprite_width = 32  # Should fail
+        print("✗ FAIL: sprite_width should be read-only")
+    except AttributeError as e:
+        print(f"✓ PASS: sprite_width is read-only: {e}")
+        tests_passed += 1
+    
+    return tests_passed, tests_total
+
+def test_font_properties():
+    """Test Font properties"""
+    print("\n=== Testing Font Properties ===")
+    
+    tests_passed = 0
+    tests_total = 0
+    
+    # Create a font
+    font = mcrfpy.Font("assets/JetbrainsMono.ttf")
+    
+    # Test 1: family property
+    tests_total += 1
+    try:
+        family = font.family
+        if isinstance(family, str) and len(family) > 0:
+            print(f"✓ PASS: family = '{family}'")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: family invalid: '{family}'")
+    except AttributeError as e:
+        print(f"✗ FAIL: family not accessible: {e}")
+    
+    # Test 2: source property
+    tests_total += 1
+    try:
+        source = font.source
+        if "JetbrainsMono.ttf" in source:
+            print(f"✓ PASS: source = '{source}'")
+            tests_passed += 1
+        else:
+            print(f"✗ FAIL: source unexpected: '{source}'")
+    except AttributeError as e:
+        print(f"✗ FAIL: source not accessible: {e}")
+    
+    # Test 3: Properties are read-only
+    tests_total += 1
+    try:
+        font.family = "Arial"  # Should fail
+        print("✗ FAIL: family should be read-only")
+    except AttributeError as e:
+        print(f"✓ PASS: family is read-only: {e}")
+        tests_passed += 1
+    
+    return tests_passed, tests_total
+
+def test_property_introspection():
+    """Test that properties appear in dir()"""
+    print("\n=== Testing Property Introspection ===")
+    
+    tests_passed = 0
+    tests_total = 0
+    
+    # Test Texture properties in dir()
+    tests_total += 1
+    texture = mcrfpy.Texture("assets/kenney_tinydungeon.png", 16, 16)
+    texture_props = dir(texture)
+    expected_texture_props = ['sprite_width', 'sprite_height', 'sheet_width', 'sheet_height', 'sprite_count', 'source']
+    
+    missing = [p for p in expected_texture_props if p not in texture_props]
+    if not missing:
+        print("✓ PASS: All Texture properties appear in dir()")
+        tests_passed += 1
+    else:
+        print(f"✗ FAIL: Missing Texture properties in dir(): {missing}")
+    
+    # Test Font properties in dir()
+    tests_total += 1
+    font = mcrfpy.Font("assets/JetbrainsMono.ttf")
+    font_props = dir(font)
+    expected_font_props = ['family', 'source']
+    
+    missing = [p for p in expected_font_props if p not in font_props]
+    if not missing:
+        print("✓ PASS: All Font properties appear in dir()")
+        tests_passed += 1
+    else:
+        print(f"✗ FAIL: Missing Font properties in dir(): {missing}")
+    
+    return tests_passed, tests_total
+
+def run_test(runtime):
+    """Timer callback to run the test"""
+    try:
+        print("=== Testing Texture and Font Properties (Issue #99) ===\n")
+        
+        texture_passed, texture_total = test_texture_properties()
+        font_passed, font_total = test_font_properties()
+        intro_passed, intro_total = test_property_introspection()
+        
+        total_passed = texture_passed + font_passed + intro_passed
+        total_tests = texture_total + font_total + intro_total
+        
+        print(f"\n=== SUMMARY ===")
+        print(f"Texture tests: {texture_passed}/{texture_total}")
+        print(f"Font tests: {font_passed}/{font_total}")
+        print(f"Introspection tests: {intro_passed}/{intro_total}")
+        print(f"Total tests passed: {total_passed}/{total_tests}")
+        
+        if total_passed == total_tests:
+            print("\nIssue #99 FIXED: Texture and Font properties exposed successfully!")
+            print("\nOverall result: PASS")
+        else:
+            print("\nIssue #99: Some tests failed")
+            print("\nOverall result: FAIL")
+            
+    except Exception as e:
+        print(f"\nTest error: {e}")
+        import traceback
+        traceback.print_exc()
+        print("\nOverall result: FAIL")
+    
+    sys.exit(0)
+
+# Set up the test scene
+mcrfpy.createScene("test")
+mcrfpy.setScene("test")
+
+# Schedule test to run after game loop starts
+mcrfpy.setTimer("test", run_test, 100)