Remotion Video Generator

# chuk-motion/src/chuk_motion/components/overlays/DecryptedText/tool.py """DecryptedText MCP tool.""" import asyncio from chuk_motion.generator.composition_builder import ComponentInstance from chuk_motion.models import ComponentResponse, ErrorResponse def register_tool(mcp, project_manager): """Register the DecryptedText tool with the MCP server.""" @mcp.tool async def remotion_add_decrypted_text( text: str, font_size: str = "3xl", font_weight: str = "bold", text_color: str | None = None, reveal_direction: str = "start", scramble_speed: float = 3.0, position: str = "center", duration: float | str = 3.0, track: str = "main", gap_before: float | str | None = None, ) -> str: """ Add DecryptedText animated text reveal with character scrambling effect. Creates an animation where characters progressively decrypt from random characters to the final text, with configurable reveal direction. Perfect for: Dramatic text reveals, code/hacker aesthetics, mystery unveilings Args: text: Text to animate (characters will scramble then reveal) font_size: Font size (xl, 2xl, 3xl, 4xl) - default: 3xl font_weight: Font weight (normal, medium, semibold, bold, extrabold, black) - default: bold text_color: Text color (uses on_dark color if not specified) reveal_direction: Direction of reveal (start, end, center) - default: start scramble_speed: Speed of character scrambling (higher = faster) - default: 3.0 position: Vertical position (center, top, bottom) - default: center duration: Total duration in seconds or time string (e.g., "3s", "300ms") track: Track name (default: "main") gap_before: Gap before component in seconds or time string Returns: JSON with component info Example: # Basic decrypted text reveal remotion_add_decrypted_text( text="Access Granted", font_size="4xl", reveal_direction="start" ) # Center-out reveal with custom styling remotion_add_decrypted_text( text="System Initialized", reveal_direction="center", font_weight="extrabold", scramble_speed=5.0, duration=4.0 ) # End-to-start reveal remotion_add_decrypted_text( text="Decoding Complete", reveal_direction="end", position="top", text_color="#00FF00" ) """ def _add(): if not project_manager.current_timeline: return ErrorResponse(error="No active project.").model_dump_json() try: # Parse duration if it's a string actual_duration = duration if isinstance(duration, str): if duration.endswith('s'): actual_duration = float(duration[:-1]) else: actual_duration = float(duration) # Calculate if we need to speed up decryption to fit in the given duration text_length = len(text) # Reserve 0.5 second for final display fps = 30 frames_available = max(int(actual_duration * fps) - int(0.5 * fps), fps) # Calculate frames needed per character at current speed frames_per_char = scramble_speed total_frames_needed = text_length * frames_per_char # If we need more frames than available, speed up if total_frames_needed > frames_available: final_scramble_speed = max(1, frames_available / text_length) else: final_scramble_speed = scramble_speed # Build props with adjusted scramble_speed props = { "text": text, "fontSize": font_size, "fontWeight": font_weight, "revealDirection": reveal_direction, "scrambleSpeed": final_scramble_speed, "position": position, } if text_color: props["textColor"] = text_color component = ComponentInstance( component_type="DecryptedText", start_frame=0, duration_frames=0, props=props, layer=0, ) component = project_manager.current_timeline.add_component( component, duration=actual_duration, track=track, gap_before=gap_before ) return ComponentResponse( component="DecryptedText", start_time=project_manager.current_timeline.frames_to_seconds( component.start_frame ), duration=actual_duration, ).model_dump_json() except Exception as e: return ErrorResponse(error=str(e)).model_dump_json() return await asyncio.get_event_loop().run_in_executor(None, _add)