Shape rendering now works:
- Shape::draw() generates triangle vertices for fill and outline
- RectangleShape, CircleShape, ConvexShape provide getPointCount()/getPoint()
- Shapes render with correct fill color, outline color, and outline thickness
Transform class fully implemented:
- translate(), rotate(), scale() modify the 3x3 affine matrix
- transformPoint() applies transform to Vector2f
- operator* combines transforms
- getInverse() computes inverse transform
Transformable::getTransform() now computes proper transform from:
- position, rotation, scale, and origin
RenderStates now has transform, blendMode, shader members
Canvas sizing fixed for Emscripten:
- EM_ASM sets canvas size after SDL window creation
- SDL_GL_MakeCurrent called after canvas resize
Result: RectangleShape UI elements render in correct positions!
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Major milestone for issue #158 (Emscripten/WebAssembly build target):
- Python 3.14 successfully initializes and runs in WASM
- mcrfpy module loads and works correctly
- Game scripts execute with full level generation
- Entities (boulders, rats, cyclops, spawn points) placed correctly
Key changes:
- CMakeLists.txt: Add 2MB stack, Emscripten link options, preload files
- platform.h: Add WASM-specific implementations for executable paths
- HeadlessTypes.h: Make Texture/Font/Sound stubs return success
- CommandLineParser.cpp: Guard filesystem operations for WASM
- McRFPy_API.cpp: Add WASM path configuration, debug output
- game.py: Make 'code' module import optional (not available in WASM)
- wasm_stdlib/: Add minimal Python stdlib for WASM (~4MB)
Build with: emmake make (from build-emscripten/)
Test with: node mcrogueface.js
Next steps:
- Integrate VRSFML for actual WebGL rendering
- Create HTML page to host WASM build
- Test in actual browsers
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Refactors the main game loop to support both:
- Desktop: traditional blocking while(running) loop
- Browser: emscripten_set_main_loop_arg() callback (build-time conditional)
Changes:
- Add doFrame() method containing single-frame update logic
- Add isRunning() accessor for Emscripten callback
- run() now conditionally uses #ifdef __EMSCRIPTEN__ for loop selection
- Add emscriptenMainLoopCallback() static function
This is a prerequisite for Emscripten builds - browsers require
cooperative multitasking with callback-based frame updates.
Both normal and headless builds verified working.
Contributes to #158
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
This commit enables McRogueFace to compile without SFML dependencies
when built with -DMCRF_HEADLESS, a prerequisite for Emscripten/WebAssembly
support.
Changes:
- Add src/platform/HeadlessTypes.h (~900 lines of SFML type stubs)
- Consolidate all SFML includes through src/Common.h (15 files fixed)
- Wrap ImGui-SFML with #ifndef MCRF_HEADLESS guards
- Disable debug console/explorer in headless builds
- Add comprehensive research document: docs/EMSCRIPTEN_RESEARCH.md
The headless build compiles successfully but uses stub implementations
that return failure/no-op. This proves the abstraction boundary is clean
and enables future work on alternative backends (VRSFML, Emscripten).
What still works in headless mode:
- Python interpreter and script execution
- libtcod integrations (pathfinding, FOV, noise, BSP, heightmaps)
- Timer system and scene management
- All game logic and data structures
Build commands:
Normal: make
Headless: cmake .. -DCMAKE_CXX_FLAGS="-DMCRF_HEADLESS" && make
Addresses #158
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
When a Grid has a perspective entity set (typically the player), the API
now respects field-of-view by default. Only entities visible to the
perspective entity are returned in /scene responses.
Changes:
- serialize_grid() filters entities using grid.is_in_fov()
- Added ?omniscient=true query param to bypass FOV filtering
- Response includes perspective info with hidden_entities count
- Updated README with perspective documentation
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Implements a general-purpose HTTP API that exposes McRogueFace games
to external clients (LLMs, accessibility tools, Twitch integrations,
testing harnesses).
API endpoints:
- GET /scene - Full scene graph with all UI elements
- GET /affordances - Interactive elements with semantic labels
- GET /screenshot - PNG screenshot (binary or base64)
- GET /metadata - Game metadata for LLM context
- GET /wait - Long-poll for state changes
- POST /input - Inject clicks, keys, or affordance clicks
Key features:
- Automatic affordance detection from Frame+Caption+on_click patterns
- Label extraction from caption text with fallback to element.name
- Thread-safe scene access via mcrfpy.lock()
- Fuzzy label matching for click_affordance
- Full input injection via mcrfpy.automation
Usage: from api import start_server; start_server(8765)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add convertDrawableToPython() and convertEntityToPython() helper functions
- Add animationValueToPython() to convert AnimationValue to Python objects
- Rewrite triggerCallback() to pass meaningful data:
- target: The animated Frame/Sprite/Grid/Entity/etc.
- property: String property name like "x", "opacity", "fill_color"
- final_value: float, int, tuple (for colors/vectors), or string
- Update test_animation_callback_simple.py for new signature
closes#229
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Add ensureRenderTextureSize() helper that creates/resizes renderTexture to match game resolution
- Add renderTextureSize tracking member to detect when resize is needed
- Call helper in constructor and at start of render() to handle resolution changes
- Clamp maximum size to 4096x4096 (SFML texture limits)
- Only recreate texture when size actually changes (performance optimization)
closes#228
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Proof of concept for shader support on UIFrame:
- Add shader and shader_enabled members to UIFrame
- Add initializeTestShader() with hardcoded wave/glow fragment shader
- Add shader_enabled Python property for toggling
- Apply shader when drawing RenderTexture sprite
- Auto-update time uniform for animated effects
Also fixes position corruption when toggling RenderTexture usage:
- Standard rendering path now uses `position` as source of truth
- Prevents box position from staying at (0,0) after texture render
Test files:
- tests/shader_poc_test.py: Visual test of 6 render variants
- tests/shader_toggle_test.py: Regression test for position bug
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Fix#223: Use `position` instead of `box.getPosition()` for render_sprite
positioning. The box was being set to (0,0) for texture rendering and
never restored, causing frames to render at wrong positions.
- Fix#224: Add disableRenderTexture() method and call it when toggling
clip_children or cache_subtree off. This properly cleans up the texture
and prevents stale rendering.
- Fix#225: Improve dirty propagation in markContentDirty() to propagate
to parent even when already dirty, if the parent was cleared (rendered)
since last propagation. Prevents child changes from being invisible.
- Fix#226: Add fallback to standard rendering when RenderTexture can't
be created (e.g., zero-size frame). Prevents inconsistent state.
Closes#223, closes#224, closes#225, closes#226
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Game script updates (src/scripts/):
- Migrate Sound/Music API: createSoundBuffer() -> Sound() objects
- Migrate Scene API: sceneUI("name") -> scene.children
- Migrate Timer API: setTimer/delTimer -> Timer objects with stop()
- Fix callback signatures: (x,y,btn,event) -> (pos,btn,action) with Vector
- Fix grid_size unpacking: now returns Vector, use .x/.y with int()
Segfault fix (src/PyTimer.cpp):
- Remove direct map erase in PyTimer::stop() that caused iterator
invalidation when timer.stop() was called from within a callback
- Now just marks timer as stopped; testTimers() handles safe removal
The game now starts and runs without crashes.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
New Features:
- Scene Explorer window (F4) displays hierarchical tree of all scenes
- Shows UIDrawable hierarchy with type, name, and visibility status
- Click scene name to switch active scene
- Double-click drawables to toggle visibility
- Displays Python repr() for cached objects, enabling custom class debugging
- Entity display within Grid nodes
Bug Fixes:
- Fix PythonObjectCache re-registration: when retrieving objects from
collections, newly created Python wrappers are now re-registered in
the cache. Previously, inline-created objects (e.g.,
scene.children.append(Frame(...))) would lose their cache entry when
the temporary Python object was GC'd, causing repeated wrapper
allocation on each access.
- Fix console focus stealing: removed aggressive focus reclaim that
caused title bar flashing when clicking in Scene Explorer
Infrastructure:
- Add GameEngine::getSceneNames() to expose scene list for explorer
- Scene Explorer uses same enabled flag as console (ImGuiConsole::isEnabled())
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- Remove mcrfpy.libtcod submodule entirely
- Add mcrfpy.bresenham(start, end, include_start=True, include_end=True)
- Accepts tuples or Vector objects for positions
- Returns list of (x, y) tuples along the line
- compute_fov() was redundant with Grid.compute_fov()
- line() functionality now available as top-level bresenham()
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Enables background Python threads to safely modify UI objects by
synchronizing with the render loop at frame boundaries.
Implementation:
- FrameLock class provides mutex/condvar synchronization
- GIL released during window.display() allowing background threads to run
- Safe window opens between frames for synchronized UI updates
- mcrfpy.lock() context manager blocks until safe window, then executes
- Main thread detection: lock() is a no-op when called from callbacks
or script initialization (already synchronized)
Usage:
import threading
import mcrfpy
def background_worker():
with mcrfpy.lock(): # Blocks until safe
player.x = new_x # Safe to modify UI
threading.Thread(target=background_worker).start()
The lock works transparently from any context - background threads get
actual synchronization, main thread calls (callbacks, init) get no-op.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
UIDrawables placed in a Grid's children collection now have:
- grid_pos: Position in tile coordinates (get/set)
- grid_size: Size in tile coordinates (get/set)
Raises RuntimeError if accessed when parent is not a Grid.
UIGrid only gets grid_pos (grid_size conflicts with existing property).
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- MouseButton enum (LEFT, RIGHT, MIDDLE, X1, X2) instead of "left", "right", etc.
- InputState enum (PRESSED, RELEASED) instead of "start", "end"
- Includes fallback to strings if enum creation fails
- Added proper reference counting for args tuple
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
- #212: Add GRID_MAX (8192) validation to Grid, ColorLayer, TileLayer
- #213: Validate color components are in 0-255 range
- #214: Add null pointer checks before HeightMap operations
- #216: Change entities_in_radius(x, y, radius) to (pos, radius)
- #217: Fix Entity __repr__ to show actual draw_pos float values
Closes#212, closes#213, closes#214, closes#216, closes#217
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Safety improvements:
- Generation counter detects stale BSPNode references after clear()/split_recursive()
- GRID_MAX validation prevents oversized BSP trees
- Depth parameter capped at 16 to prevent resource exhaustion
- Iterator checks generation to detect invalidation during mutation
API improvements:
- Changed constructor from bounds=((x,y),(w,h)) to pos=(x,y), size=(w,h)
- Added pos and size properties alongside bounds
- BSPNode __eq__ compares underlying pointers for identity
- BSP __iter__ as shorthand for leaves()
- BSP __len__ returns leaf count
Tests:
- Added tests for stale node detection, GRID_MAX validation, depth cap
- Added tests for __len__, __iter__, and BSPNode equality
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
TileLayer (closes#200):
- apply_threshold(source, range, tile): Set tile index where heightmap value is in range
- apply_ranges(source, ranges): Apply multiple tile assignments in one pass
ColorLayer (closes#201):
- apply_threshold(source, range, color): Set fixed color where value is in range
- apply_gradient(source, range, color_low, color_high): Interpolate colors based on value
- apply_ranges(source, ranges): Apply multiple color assignments (fixed or gradient)
All methods return self for chaining. HeightMap size must match layer dimensions.
Later ranges override earlier ones if overlapping. Cells not matching any range are unchanged.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Rename parameters for clearer semantics:
- dig_hill: depth -> target_height
- dig_bezier: start_depth/end_depth -> start_height/end_height
The libtcod "dig" functions set terrain TO a target height, not
relative to current values. "target_height" makes this clearer.
Also add warnings for likely user errors:
- add_hill/dig_hill/dig_bezier with radius <= 0 (no-op)
- smooth with iterations <= 0 already raises ValueError
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add three methods that create NEW HeightMap objects:
- threshold(range): preserve original values where in range, 0.0 elsewhere
- threshold_binary(range, value=1.0): set uniform value where in range
- inverse(): return (1.0 - value) for each cell
These operations are immutable - they preserve the original HeightMap.
Useful for masking operations with Grid.apply_threshold/apply_ranges.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Position argument flexibility:
- get(), get_interpolated(), get_slope(), get_normal() now accept:
- Two separate args: hmap.get(5, 5)
- Tuple: hmap.get((5, 5))
- List: hmap.get([5, 5])
- Vector: hmap.get(mcrfpy.Vector(5, 5))
- Uses PyPositionHelper for standardized parsing
Subscript support:
- Add __getitem__ as shorthand for get(): hmap[5, 5] or hmap[(5, 5)]
Range validation:
- count_in_range() now raises ValueError when min > max
- count_in_range() accepts both tuple and list
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
PyWeakref_GetObject was deprecated in Python 3.13 and will be removed
in 3.15. The new PyWeakref_GetRef API returns a strong reference directly
and uses integer return codes for error handling.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add methods to apply HeightMap data to Grid walkable/transparent properties:
- apply_threshold(source, range, walkable, transparent): Apply properties
to cells where HeightMap value is in the specified range
- apply_ranges(source, ranges): Apply multiple threshold rules in one pass
Features:
- Size mismatch between HeightMap and Grid raises ValueError
- Both methods return self for chaining
- Uses dynamic type lookup via module for HeightMap type checking
- First matching range wins in apply_ranges
- Cells not matching any range remain unchanged
- TCOD map is synced after changes for FOV/pathfinding
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Add methods to query HeightMap values and statistics:
- get(pos): Get height value at integer coordinates
- get_interpolated(pos): Get bilinearly interpolated height at float coords
- get_slope(pos): Get slope angle (0 to pi/2) at position
- get_normal(pos, water_level): Get surface normal vector
- min_max(): Get (min, max) tuple of all values
- count_in_range(range): Count cells with values in range
All methods include proper bounds checking and error messages.
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
Fixes potential integer overflow and invalid input issues:
- Add GRID_MAX constant (8192) to Common.h for global use
- Validate HeightMap dimensions against GRID_MAX to prevent
integer overflow in w*h calculations (65536*65536 = 0)
- Add min > max validation for clamp() and normalize()
- Add unit tests for all new validation cases
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
