Complete piglet implementation with animations and effects

- Implement complete animation system with 20+ motion effects
- Add 18+ easing functions (quad, cubic, elastic, back, bounce)
- Implement color system with palette and gradient support
- Add parser for durations, colors, and CSS gradients
- Create comprehensive test suite (14 tests passing)
- Add linting and formatting with clippy/rustfmt
- Support for figlet integration with custom fonts
- Terminal rendering with crossterm
- Fix all clippy warnings and lint issues

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

src/color/apply.rs

@@ -3,13 +3,13 @@ use crossterm::style::Color as CrosstermColor;
 
 pub fn apply_color_to_char(ch: char, color: Color) -> String {
     use crossterm::style::Stylize;
-    
+
     let crossterm_color = CrosstermColor::Rgb {
         r: color.r,
         g: color.g,
         b: color.b,
     };
-    
+
     format!("{}", ch.to_string().with(crossterm_color))
 }
 
@@ -17,7 +17,7 @@ pub fn apply_color_to_line(line: &str, colors: &[Color]) -> String {
     if colors.is_empty() {
         return line.to_string();
     }
-    
+
     line.chars()
         .enumerate()
         .map(|(i, ch)| {
@@ -34,14 +34,14 @@ pub fn apply_color_to_line(line: &str, colors: &[Color]) -> String {
 pub fn apply_gradient_to_text(text: &str, colors: &[Color]) -> String {
     let lines: Vec<&str> = text.lines().collect();
     let total_chars: usize = lines.iter().map(|l| l.chars().count()).sum();
-    
+
     if total_chars == 0 || colors.is_empty() {
         return text.to_string();
     }
-    
+
     let mut result = String::new();
     let mut char_index = 0;
-    
+
     for (line_idx, line) in lines.iter().enumerate() {
         for ch in line.chars() {
             if ch.is_whitespace() {
@@ -53,11 +53,11 @@ pub fn apply_gradient_to_text(text: &str, colors: &[Color]) -> String {
                 char_index += 1;
             }
         }
-        
+
         if line_idx < lines.len() - 1 {
             result.push('\n');
         }
     }
-    
+
     result
-}
+}

src/color/gradient.rs

@@ -1,7 +1,8 @@
-use crate::parser::gradient::Gradient;
 use crate::parser::color::Color;
+use crate::parser::gradient::Gradient;
 use anyhow::Result;
 
+#[derive(Debug, Clone)]
 pub struct GradientEngine {
     gradient: Gradient,
 }
@@ -10,17 +11,17 @@ impl GradientEngine {
     pub fn new(gradient: Gradient) -> Self {
         Self { gradient }
     }
-    
+
     pub fn from_string(gradient_str: &str) -> Result<Self> {
         let gradient = Gradient::parse(gradient_str)?;
         Ok(Self::new(gradient))
     }
-    
+
     pub fn color_at(&self, t: f64) -> Color {
         self.gradient.color_at(t)
     }
-    
+
     pub fn colors(&self, steps: usize) -> Vec<Color> {
         self.gradient.colors(steps)
     }
-}
+}

src/color/mod.rs

@@ -0,0 +1,83 @@
+pub mod apply;
+pub mod gradient;
+pub mod palette;
+
+use crate::parser::color::Color;
+use anyhow::Result;
+pub use gradient::GradientEngine;
+pub use palette::ColorPalette;
+
+#[derive(Debug, Clone)]
+pub enum ColorMode {
+    None,
+    Palette(ColorPalette),
+    Gradient(GradientEngine),
+}
+
+pub struct ColorEngine {
+    mode: ColorMode,
+}
+
+impl ColorEngine {
+    pub fn new() -> Self {
+        Self {
+            mode: ColorMode::None,
+        }
+    }
+
+    pub fn with_palette(mut self, palette: Option<&[String]>) -> Result<Self> {
+        if let Some(colors) = palette {
+            if !colors.is_empty() {
+                let palette = ColorPalette::from_strings(colors)?;
+                self.mode = ColorMode::Palette(palette);
+            }
+        }
+        Ok(self)
+    }
+
+    pub fn with_gradient(mut self, gradient: Option<&str>) -> Result<Self> {
+        if let Some(gradient_str) = gradient {
+            let gradient = GradientEngine::from_string(gradient_str)?;
+            self.mode = ColorMode::Gradient(gradient);
+        }
+        Ok(self)
+    }
+
+    pub fn has_colors(&self) -> bool {
+        !matches!(self.mode, ColorMode::None)
+    }
+
+    #[allow(dead_code)]
+    pub fn get_color(&self, t: f64, index: usize) -> Option<Color> {
+        match &self.mode {
+            ColorMode::None => None,
+            ColorMode::Palette(palette) => Some(palette.get_color(index)),
+            ColorMode::Gradient(gradient) => Some(gradient.color_at(t)),
+        }
+    }
+
+    #[allow(dead_code)]
+    pub fn get_colors(&self, steps: usize) -> Vec<Color> {
+        match &self.mode {
+            ColorMode::None => vec![],
+            ColorMode::Palette(palette) => (0..steps).map(|i| palette.get_color(i)).collect(),
+            ColorMode::Gradient(gradient) => gradient.colors(steps),
+        }
+    }
+
+    pub fn color_at(&self, t: f64) -> Option<Color> {
+        match &self.mode {
+            ColorMode::None => None,
+            ColorMode::Palette(palette) => {
+                Some(palette.get_color((t * palette.len() as f64) as usize))
+            }
+            ColorMode::Gradient(gradient) => Some(gradient.color_at(t)),
+        }
+    }
+}
+
+impl Default for ColorEngine {
+    fn default() -> Self {
+        Self::new()
+    }
+}

src/color/palette.rs

@@ -1,8 +1,53 @@
-"#ffff00".to_string(),
-        ]).unwrap()
+use crate::parser::color::Color;
+use anyhow::Result;
+
+#[derive(Debug, Clone)]
+pub struct ColorPalette {
+    colors: Vec<Color>,
+}
+
+impl ColorPalette {
+    pub fn new(colors: Vec<Color>) -> Self {
+        Self { colors }
     }
-    
+
+    pub fn from_strings(color_strs: &[String]) -> Result<Self> {
+        let colors: Result<Vec<Color>> = color_strs.iter().map(|s| Color::parse(s)).collect();
+        Ok(Self::new(colors?))
+    }
+
+    pub fn get_color(&self, index: usize) -> Color {
+        if self.colors.is_empty() {
+            return Color::new(255, 255, 255);
+        }
+        self.colors[index % self.colors.len()]
+    }
+
+    pub fn len(&self) -> usize {
+        self.colors.len()
+    }
+
+    #[allow(dead_code)]
+    pub fn is_empty(&self) -> bool {
+        self.colors.is_empty()
+    }
+
+    /// Create rainbow palette
+    pub fn rainbow() -> Self {
+        Self::from_strings(&[
+            "#ff0000".to_string(),
+            "#ff7f00".to_string(),
+            "#ffff00".to_string(),
+            "#00ff00".to_string(),
+            "#0000ff".to_string(),
+            "#4b0082".to_string(),
+            "#9400d3".to_string(),
+        ])
+        .unwrap()
+    }
+
     /// Create ocean palette
+    #[allow(dead_code)]
     pub fn ocean() -> Self {
         Self::from_strings(&[
             "#000080".to_string(),
@@ -10,7 +55,8 @@
             "#4169e1".to_string(),
             "#87ceeb".to_string(),
             "#add8e6".to_string(),
-        ]).unwrap()
+        ])
+        .unwrap()
     }
 }
 
@@ -18,4 +64,4 @@ impl Default for ColorPalette {
     fn default() -> Self {
         Self::rainbow()
     }
-}
+}