changed gesture loader, it has tai chi and gangnam style now and the ability to load choregraphe gestures

gestures/3_six_seven.py

@@ -0,0 +1,47 @@
+import threading
+
+NAME = "6-7"
+
+
+def run(motion, tts):
+    # Threaded so the TTS call doesn't block the arm motion below.
+    threading.Thread(target=tts.say, args=("six seven",), daemon=True).start()
+
+    motion.setStiffnesses(["RArm", "LArm"], 1.0)
+
+    # Lock both arms up in front of the body, hands held out like a scale.
+    # ElbowYaw is rotated ~90° off zero here - that's what points the elbow's
+    # bend axis so flexing tips the forearm forward/down instead of curling
+    # it in across the chest. These joints don't move again until the return.
+    hold_names = [
+        "RShoulderPitch", "RShoulderRoll", "RElbowYaw", "RWristYaw", "RHand",
+        "LShoulderPitch", "LShoulderRoll", "LElbowYaw", "LWristYaw", "LHand"
+    ]
+    hold_angles = [
+        0.2, -0.2, 1.4, 1.57, 0.6,
+        0.2, 0.2, -1.4, -1.57, 0.6
+    ]
+    motion.angleInterpolationWithSpeed(hold_names, hold_angles, 0.25)
+
+    # Only the elbows seesaw now - a small tip back and forth, one arm
+    # rising while the other falls, like weighing something in each hand
+    # ("six... seven..."). Small amplitude so it stays a wobble, not a fold.
+    elbow_names = ["RElbowRoll", "LElbowRoll"]
+    r_low, r_high = 0.6, 1.0
+    l_low, l_high = -0.6, -1.0
+
+    elbow_angles = [
+        [r_low, r_high, r_low, r_high, r_low, r_high],
+        [l_high, l_low, l_high, l_low, l_high, l_low],
+    ]
+    times = [[0.35, 0.7, 1.05, 1.4, 1.75, 2.1]] * 2
+    motion.angleInterpolation(elbow_names, elbow_angles, times, True)
+
+    # Return everything to neutral
+    neutral_names = hold_names + elbow_names
+    neutral = [1.5, -0.15, 1.2, 0.0, 0.0,
+               1.5, 0.15, -1.2, 0.0, 0.0,
+               0.5, -0.5]
+    motion.angleInterpolationWithSpeed(neutral_names, neutral, 0.3)
+    # Relaxed stiffness after completion
+    motion.setStiffnesses(["RArm", "LArm"], 0.3)