From e42b111638542a89a917410bd53fc70c2a293ebd Mon Sep 17 00:00:00 2001
From: Melodie <melodie_ebrahimi@berkeley.edu>
Date: Wed, 3 Dec 2025 16:41:32 -0800
Subject: [PATCH 1/2] party shape

---
 lec40_git/MCodingPartyShape.java | 10 ++++++++++
 1 file changed, 10 insertions(+)
 create mode 100644 lec40_git/MCodingPartyShape.java

diff --git a/lec40_git/MCodingPartyShape.java b/lec40_git/MCodingPartyShape.java
new file mode 100644
index 0000000..faba245
--- /dev/null
+++ b/lec40_git/MCodingPartyShape.java
@@ -0,0 +1,10 @@
+/**
+ * Students implement this interface to create a shape.
+ */
+public interface PartyShape {
+    /**
+     * Draw your shape using the provided Turtle.
+     * The Turtle starts at (0,0) facing East.
+     */
+    void draw(Turtle t);
+}
\ No newline at end of file

From c136c98e69fab0533734a123eef2dda2c4944f83 Mon Sep 17 00:00:00 2001
From: Melodie <melodie_ebrahimi@berkeley.edu>
Date: Wed, 3 Dec 2025 16:59:49 -0800
Subject: [PATCH 2/2] purple turtlesgit add .

---
 .DS_Store                        | Bin 0 -> 8196 bytes
 lec40_git/.DS_Store              | Bin 0 -> 6148 bytes
 lec40_git/MCodingPartyShape.java |  10 --------
 lec40_git/Purple_Turtle.java     |  41 +++++++++++++++++++++++++++++++
 4 files changed, 41 insertions(+), 10 deletions(-)
 create mode 100644 .DS_Store
 create mode 100644 lec40_git/.DS_Store
 delete mode 100644 lec40_git/MCodingPartyShape.java
 create mode 100644 lec40_git/Purple_Turtle.java

diff --git a/.DS_Store b/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..2ec9d933fcb88b652d9b27b30efce8611b6b14de
GIT binary patch
literal 8196
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literal 0
HcmV?d00001

diff --git a/lec40_git/.DS_Store b/lec40_git/.DS_Store
new file mode 100644
index 0000000000000000000000000000000000000000..b4ff9519734aa3cfa2515fdeb718b306a7f1d4e5
GIT binary patch
literal 6148
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z#^_8keciTiCi^z+Yyr6D{PGZ}1E|pjt6OZoFqs!GStX2Y5}n2v;R+4hpo{y`Y8x;G
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literal 0
HcmV?d00001

diff --git a/lec40_git/MCodingPartyShape.java b/lec40_git/MCodingPartyShape.java
deleted file mode 100644
index faba245..0000000
--- a/lec40_git/MCodingPartyShape.java
+++ /dev/null
@@ -1,10 +0,0 @@
-/**
- * Students implement this interface to create a shape.
- */
-public interface PartyShape {
-    /**
-     * Draw your shape using the provided Turtle.
-     * The Turtle starts at (0,0) facing East.
-     */
-    void draw(Turtle t);
-}
\ No newline at end of file
diff --git a/lec40_git/Purple_Turtle.java b/lec40_git/Purple_Turtle.java
new file mode 100644
index 0000000..40ff1d2
--- /dev/null
+++ b/lec40_git/Purple_Turtle.java
@@ -0,0 +1,41 @@
+import java.awt.*;
+import java.awt.geom.Line2D;
+
+/**
+ * A simple "Turtle Graphics" style tool for students.
+ */
+public class Turtle {
+    private Graphics2D g2d;
+    private double x = 0;
+    private double y = 0;
+    private double heading = 0; // Degrees, 0 is East
+
+    public Turtle(Graphics2D g2d) {
+        this.g2d = g2d;
+        // Set default stroke
+        g2d.setStroke(new BasicStroke(3));
+    }
+
+    public void setColor(Color c) {
+        g2d.setColor(Color.MAGENTA);
+    }
+
+    public void forward(double pixels) {
+        double rad = Math.toRadians(heading);
+        double newX = x + Math.cos(rad) * pixels;
+        double newY = y + Math.sin(rad) * pixels;
+        
+        g2d.draw(new Line2D.Double(x, y, newX, newY));
+        
+        x = newX;
+        y = newY;
+    }
+
+    public void turnRight(double degrees) {
+        heading += degrees;
+    }
+
+    public void turnLeft(double degrees) {
+        heading -= degrees;
+    }
+}
\ No newline at end of file