增加2.1.x运行时

SpineRuntimes/SpineRuntime21/Attachments/BoundingBoxAttachment.cs

@@ -0,0 +1,60 @@
+/******************************************************************************
+ * Spine Runtimes Software License
+ * Version 2.1
+ * 
+ * Copyright (c) 2013, Esoteric Software
+ * All rights reserved.
+ * 
+ * You are granted a perpetual, non-exclusive, non-sublicensable and
+ * non-transferable license to install, execute and perform the Spine Runtimes
+ * Software (the "Software") solely for internal use. Without the written
+ * permission of Esoteric Software (typically granted by licensing Spine), you
+ * may not (a) modify, translate, adapt or otherwise create derivative works,
+ * improvements of the Software or develop new applications using the Software
+ * or (b) remove, delete, alter or obscure any trademarks or any copyright,
+ * trademark, patent or other intellectual property or proprietary rights
+ * notices on or in the Software, including any copy thereof. Redistributions
+ * in binary or source form must include this license and terms.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL ESOTERIC SOFTARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
+ * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
+ * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
+ * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+using System;
+
+namespace SpineRuntime21 {
+	/// <summary>Attachment that has a polygon for bounds checking.</summary>
+	public class BoundingBoxAttachment : Attachment {
+		internal float[] vertices;
+
+		public float[] Vertices { get { return vertices; } set { vertices = value; } }
+
+		public BoundingBoxAttachment (string name)
+			: base(name) {
+		}
+
+		/// <param name="worldVertices">Must have at least the same length as this attachment's vertices.</param>
+		public void ComputeWorldVertices (Bone bone, float[] worldVertices) {
+			float x = bone.skeleton.x + bone.worldX, y = bone.skeleton.y + bone.worldY;
+			float m00 = bone.m00;
+			float m01 = bone.m01;
+			float m10 = bone.m10;
+			float m11 = bone.m11;
+			float[] vertices = this.vertices;
+			for (int i = 0, n = vertices.Length; i < n; i += 2) {
+				float px = vertices[i];
+				float py = vertices[i + 1];
+				worldVertices[i] = px * m00 + py * m01 + x;
+				worldVertices[i + 1] = px * m10 + py * m11 + y;
+			}
+		}
+	}
+}