add spine34 & spine35

SpineRuntimes/SpineRuntime34/TransformConstraint.cs

@@ -0,0 +1,129 @@
+/******************************************************************************
+ * Spine Runtimes Software License v2.5
+ * 
+ * Copyright (c) 2013-2016, Esoteric Software
+ * All rights reserved.
+ * 
+ * You are granted a perpetual, non-exclusive, non-sublicensable, and
+ * non-transferable license to use, install, execute, and perform the Spine
+ * Runtimes software and derivative works solely for personal or internal
+ * use. Without the written permission of Esoteric Software (see Section 2 of
+ * the Spine Software License Agreement), you may not (a) modify, translate,
+ * adapt, or develop new applications using the Spine Runtimes or otherwise
+ * create derivative works or improvements of the Spine Runtimes 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 SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
+ * USE, DATA, OR PROFITS) 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 SpineRuntime34 {
+	public class TransformConstraint : IUpdatable {
+		internal TransformConstraintData data;
+		internal ExposedList<Bone> bones;
+		internal Bone target;
+		internal float rotateMix, translateMix, scaleMix, shearMix;
+
+		public TransformConstraintData Data { get { return data; } }
+		public ExposedList<Bone> Bones { get { return bones; } }
+		public Bone Target { get { return target; } set { target = value; } }
+		public float RotateMix { get { return rotateMix; } set { rotateMix = value; } }
+		public float TranslateMix { get { return translateMix; } set { translateMix = value; } }
+		public float ScaleMix { get { return scaleMix; } set { scaleMix = value; } }
+		public float ShearMix { get { return shearMix; } set { shearMix = value; } }
+
+		public TransformConstraint (TransformConstraintData data, Skeleton skeleton) {
+			if (data == null) throw new ArgumentNullException("data", "data cannot be null.");
+			if (skeleton == null) throw new ArgumentNullException("skeleton", "skeleton cannot be null.");
+			this.data = data;
+			rotateMix = data.rotateMix;
+			translateMix = data.translateMix;
+			scaleMix = data.scaleMix;
+			shearMix = data.shearMix;
+
+			bones = new ExposedList<Bone>();
+			foreach (BoneData boneData in data.bones)
+				bones.Add (skeleton.FindBone (boneData.name));
+			
+			target = skeleton.FindBone(data.target.name);
+		}
+
+		public void Apply () {
+			Update();
+		}
+
+		public void Update () {
+			float rotateMix = this.rotateMix, translateMix = this.translateMix, scaleMix = this.scaleMix, shearMix = this.shearMix;
+			Bone target = this.target;
+			float ta = target.a, tb = target.b, tc = target.c, td = target.d;
+			ExposedList<Bone> bones = this.bones;
+			for (int i = 0, n = bones.Count; i < n; i++) {
+				Bone bone = bones.Items[i];
+
+				if (rotateMix > 0) {
+					float a = bone.a, b = bone.b, c = bone.c, d = bone.d;
+					float r = (float)Math.Atan2(tc, ta) - (float)Math.Atan2(c, a) + data.offsetRotation * MathUtils.degRad;
+					if (r > MathUtils.PI)
+						r -= MathUtils.PI2;
+					else if (r < -MathUtils.PI) r += MathUtils.PI2;
+					r *= rotateMix;
+					float cos = MathUtils.Cos(r), sin = MathUtils.Sin(r);
+					bone.a = cos * a - sin * c;
+					bone.b = cos * b - sin * d;
+					bone.c = sin * a + cos * c;
+					bone.d = sin * b + cos * d;
+				}
+
+				if (translateMix > 0) {
+					float tempx, tempy;
+					target.LocalToWorld(data.offsetX, data.offsetY, out tempx, out tempy);
+					bone.worldX += (tempx - bone.worldX) * translateMix;
+					bone.worldY += (tempy - bone.worldY) * translateMix;
+				}
+
+				if (scaleMix > 0) {
+					float bs = (float)Math.Sqrt(bone.a * bone.a + bone.c * bone.c);
+					float ts = (float)Math.Sqrt(ta * ta + tc * tc);
+					float s = bs > 0.00001f ? (bs + (ts - bs + data.offsetScaleX) * scaleMix) / bs : 0;
+					bone.a *= s;
+					bone.c *= s;
+					bs = (float)Math.Sqrt(bone.b * bone.b + bone.d * bone.d);
+					ts = (float)Math.Sqrt(tb * tb + td * td);
+					s = bs > 0.00001f ? (bs + (ts - bs + data.offsetScaleY) * scaleMix) / bs : 0;
+					bone.b *= s;
+					bone.d *= s;
+				}
+
+				if (shearMix > 0) {
+					float b = bone.b, d = bone.d;
+					float by = MathUtils.Atan2(d, b);
+					float r = MathUtils.Atan2(td, tb) - MathUtils.Atan2(tc, ta) - (by - MathUtils.Atan2(bone.c, bone.a));
+					if (r > MathUtils.PI)
+						r -= MathUtils.PI2;
+					else if (r < -MathUtils.PI) r += MathUtils.PI2;
+					r = by + (r + data.offsetShearY * MathUtils.degRad) * shearMix;
+					float s = (float)Math.Sqrt(b * b + d * d);
+					bone.b = MathUtils.Cos(r) * s;
+					bone.d = MathUtils.Sin(r) * s;
+				}
+			}
+		}
+
+		override public String ToString () {
+			return data.name;
+		}
+	}
+}