from machine import Pin from neopixel import NeoPixel import utime class PatternBase: def __init__(self, pin, num_leds, color1=(0,0,0), color2=(0,0,0), brightness=127, selected="rainbow_cycle", delay=100): self.n = NeoPixel(Pin(pin, Pin.OUT), num_leds) self.num_leds = num_leds self.pattern_step = 0 self.last_update = utime.ticks_ms() self.delay = delay self.brightness = brightness self.patterns = {} self.selected = selected self.run = True # Ensure colors list always starts with at least two for robust transition handling self.colors = [color1, color2] if color1 != color2 else [color1, (255, 255, 255)] # Fallback if initial colors are same if not self.colors: # Ensure at least one color exists self.colors = [(0, 0, 0)] self.transition_duration = delay * 50 # Default transition duration self.hold_duration = delay * 10 # Default hold duration at each color self.transition_step = 0 # Current step in the transition self.current_color_idx = 0 # Index of the color currently being held/transitioned from self.current_color = self.colors[self.current_color_idx] # The actual blended color self.hold_start_time = utime.ticks_ms() # Time when the current color hold started # New attributes for scanner patterns (moved from Patterns to PatternBase as they are generic enough) self.scanner_direction = 1 # 1 for forward, -1 for backward self.scanner_tail_length = 3 # Number of trailing pixels # Removed: selected_delay caching def sync(self): self.pattern_step=0 self.last_update = utime.ticks_ms() - self.delay if self.selected == "color_transition": self.transition_step = 0 self.current_color_idx = 0 self.current_color = self.colors[self.current_color_idx] self.hold_start_time = utime.ticks_ms() # Reset hold time # Reset scanner specific variables self.scanner_direction = 1 # self.tick() # Tick moved to Patterns, as patterns dict is there def set_pattern_step(self, step): self.pattern_step = step def tick(self): if self.patterns.get(self.selected) and self.run: # Compute gating interval per pattern based on current delay interval = None if self.selected in ("color_wipe", "theater_chase", "blink", "scanner", "fill_range", "n_chase", "alternating"): interval = self.delay elif self.selected == "rainbow_cycle": interval = max(1, int(self.delay // 5)) elif self.selected == "flicker": interval = max(1, int(self.delay // 5)) elif self.selected == "bidirectional_scanner": interval = max(1, int(self.delay // 100)) # Patterns intentionally not gated here: off, on, external, pulse, color_transition if interval is not None: current_time = utime.ticks_ms() if utime.ticks_diff(current_time, self.last_update) < interval: return interval self.patterns[self.selected]() return interval return None def update_num_leds(self, pin, num_leds): self.n = NeoPixel(Pin(pin, Pin.OUT), num_leds) self.num_leds = num_leds self.pattern_step = 0 def set_delay(self, delay): self.delay = delay # Update transition duration and hold duration when delay changes self.transition_duration = self.delay * 50 self.hold_duration = self.delay * 10 # No cached interval def set_brightness(self, brightness): self.brightness = brightness def set_color1(self, color): if len(self.colors) > 0: self.colors[0] = color if self.selected == "color_transition": # If the first color is changed, potentially reset transition # to start from this new color if we were about to transition from it if self.current_color_idx == 0: self.transition_step = 0 self.current_color = self.colors[0] self.hold_start_time = utime.ticks_ms() else: self.colors.append(color) def set_color2(self, color): if len(self.colors) > 1: self.colors[1] = color elif len(self.colors) == 1: self.colors.append(color) else: # List is empty self.colors.append((0,0,0)) # Dummy color self.colors.append(color) def set_colors(self, colors): if colors and len(colors) >= 2: self.colors = colors if self.selected == "color_transition": self.sync() # Reset transition if new color list is provided elif colors and len(colors) == 1: self.colors = [colors[0], (255,255,255)] # Add a default second color if self.selected == "color_transition": print("Warning: 'color_transition' requires at least two colors. Adding a default second color.") self.sync() else: print("Error: set_colors requires a list of at least one color.") self.colors = [(0,0,0), (255,255,255)] # Fallback if self.selected == "color_transition": self.sync() def set_color(self, num, color): # Changed: More robust index check if 0 <= num < len(self.colors): self.colors[num] = color # If the changed color is part of the current or next transition, # restart the transition for smoother updates if self.selected == "color_transition": current_from_idx = self.current_color_idx current_to_idx = (self.current_color_idx + 1) % len(self.colors) if num == current_from_idx or num == current_to_idx: # If we change a color involved in the current transition, # it's best to restart the transition state for smoothness. self.transition_step = 0 self.current_color_idx = current_from_idx # Stay at the current starting color self.current_color = self.colors[self.current_color_idx] self.hold_start_time = utime.ticks_ms() # Reset hold return True elif num == len(self.colors): # Allow setting a new color at the end self.colors.append(color) return True return False def add_color(self, color): self.colors.append(color) if self.selected == "color_transition" and len(self.colors) == 2: # If we just added the second color needed for transition self.sync() def del_color(self, num): # Changed: More robust index check and using del for lists if 0 <= num < len(self.colors): del self.colors[num] # If the color being deleted was part of the current transition, # re-evaluate the current_color_idx if self.selected == "color_transition": if len(self.colors) < 2: # Need at least two colors for transition print("Warning: Not enough colors for 'color_transition'. Switching to 'on'.") self.select("on") # Or some other default else: # Adjust index if it's out of bounds after deletion or was the one transitioning from self.current_color_idx %= len(self.colors) self.transition_step = 0 self.current_color = self.colors[self.current_color_idx] self.hold_start_time = utime.ticks_ms() return True return False def apply_brightness(self, color, brightness_override=None): effective_brightness = brightness_override if brightness_override is not None else self.brightness return tuple(int(c * effective_brightness / 255) for c in color) def select(self, pattern): # Removed self.run = True here. It should be handled by Patterns class. if pattern in self.patterns: self.selected = pattern self.sync() # Reset pattern state when selecting a new pattern if pattern == "color_transition": if len(self.colors) < 2: print("Warning: 'color_transition' requires at least two colors. Switching to 'on'.") self.selected = "on" # Fallback if not enough colors self.sync() # Re-sync for the new pattern else: self.transition_step = 0 self.current_color_idx = 0 # Start from the first color in the list self.current_color = self.colors[self.current_color_idx] self.hold_start_time = utime.ticks_ms() # Reset hold timer self.transition_duration = self.delay * 50 # Initialize transition duration self.hold_duration = self.delay * 10 # Initialize hold duration return True return False def set(self, i, color): self.n[i] = color def write(self): self.n.write() def fill(self, color=None): fill_color = color if color is not None else self.colors[0] for i in range(self.num_leds): self.n[i] = fill_color self.n.write() def off(self): self.fill((0, 0, 0)) def on(self): self.fill(self.apply_brightness(self.colors[0]))