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[libgdx] 4.3 From/To properties scale and unscale using skeleton.scaleX/Y.

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This commit is contained in:
Davide Tantillo 2025-06-26 10:53:14 +02:00
parent bb06f81a06
commit ad76f09eb4
1 changed files with 50 additions and 49 deletions
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99
spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/TransformConstraintData.java
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@ -197,8 +197,9 @@ public class TransformConstraintData extends ConstraintData<TransformConstraint,
static public class FromRotate extends FromProperty {
public float value (Skeleton skeleton, BonePose source, boolean local, float[] offsets) {
if (local) return source.rotation + offsets[ROTATION];
float value = atan2(source.c / skeleton.scaleY, source.a / skeleton.scaleX) * radDeg
+ (source.a * source.d - source.b * source.c > 0 ? offsets[ROTATION] : -offsets[ROTATION]);
float sx = skeleton.scaleX, sy = skeleton.scaleY;
float value = atan2(source.c / sy, source.a / sx) * radDeg
+ ((source.a * source.d - source.b * source.c) * sx * sy > 0 ? offsets[ROTATION] : -offsets[ROTATION]);
if (value < 0) value += 360;
return value;
}
@ -211,11 +212,11 @@ public class TransformConstraintData extends ConstraintData<TransformConstraint,
public void apply (Skeleton skeleton, TransformConstraintPose pose, BonePose bone, float value, boolean local,
boolean additive) {
if (local) {
if (!additive) value -= bone.rotation;
bone.rotation += value * pose.mixRotate;
} else {
float a = bone.a, b = bone.b, c = bone.c, d = bone.d;
if (local)
bone.rotation += (additive ? value : value - bone.rotation) * pose.mixRotate;
else {
float sx = skeleton.scaleX, sy = skeleton.scaleY, ix = 1 / sx, iy = 1 / sy;
float a = bone.a * ix, b = bone.b * ix, c = bone.c * iy, d = bone.d * iy;
value *= degRad;
if (!additive) value -= atan2(c, a);
if (value > PI)
@ -224,10 +225,10 @@ public class TransformConstraintData extends ConstraintData<TransformConstraint,
value += PI2;
value *= pose.mixRotate;
float cos = cos(value), sin = sin(value);
bone.a = cos * a - sin * c;
bone.b = cos * b - sin * d;
bone.c = sin * a + cos * c;
bone.d = sin * b + cos * d;
bone.a = (cos * a - sin * c) * sx;
bone.b = (cos * b - sin * d) * sx;
bone.c = (sin * a + cos * c) * sy;
bone.d = (sin * b + cos * d) * sy;
}
}
}
@ -245,12 +246,11 @@ public class TransformConstraintData extends ConstraintData<TransformConstraint,
public void apply (Skeleton skeleton, TransformConstraintPose pose, BonePose bone, float value, boolean local,
boolean additive) {
if (local) {
if (!additive) value -= bone.x;
bone.x += value * pose.mixX;
} else {
if (!additive) value -= bone.worldX;
bone.worldX += value * pose.mixX;
if (local)
bone.x += (additive ? value : value - bone.x) * pose.mixX;
else {
if (!additive) value -= bone.worldX / skeleton.scaleX;
bone.worldX += value * pose.mixX * skeleton.scaleX;
}
}
}
@ -268,12 +268,11 @@ public class TransformConstraintData extends ConstraintData<TransformConstraint,
public void apply (Skeleton skeleton, TransformConstraintPose pose, BonePose bone, float value, boolean local,
boolean additive) {
if (local) {
if (!additive) value -= bone.y;
bone.y += value * pose.mixY;
} else {
if (!additive) value -= bone.worldY;
bone.worldY += value * pose.mixY;
if (local)
bone.y += (additive ? value : value - bone.y) * pose.mixY;
else {
if (!additive) value -= bone.worldY / skeleton.scaleY;
bone.worldY += value * pose.mixY * skeleton.scaleY;
}
}
}
@ -295,19 +294,20 @@ public class TransformConstraintData extends ConstraintData<TransformConstraint,
boolean additive) {
if (local) {
if (additive)
bone.scaleX *= 1 + ((value - 1) * pose.mixScaleX);
bone.scaleX *= 1 + (value - 1) * pose.mixScaleX;
else if (bone.scaleX != 0) //
bone.scaleX = 1 + (value / bone.scaleX - 1) * pose.mixScaleX;
} else {
float s;
if (additive)
s = 1 + (value - 1) * pose.mixScaleX;
else {
s = (float)Math.sqrt(bone.a * bone.a + bone.c * bone.c) / skeleton.scaleX;
if (s != 0) s = 1 + (value / s - 1) * pose.mixScaleX;
}
bone.scaleX += (value - bone.scaleX) * pose.mixScaleX;
} else if (additive) {
float s = 1 + (value - 1) * pose.mixScaleX;
bone.a *= s;
bone.c *= s;
} else {
float a = bone.a / skeleton.scaleX, c = bone.c / skeleton.scaleY, s = (float)Math.sqrt(a * a + c * c);
if (s != 0) {
s = 1 + (value - s) * pose.mixScaleX / s;
bone.a *= s;
bone.c *= s;
}
}
}
}
@ -329,19 +329,20 @@ public class TransformConstraintData extends ConstraintData<TransformConstraint,
boolean additive) {
if (local) {
if (additive)
bone.scaleY *= 1 + ((value - 1) * pose.mixScaleY);
bone.scaleY *= 1 + (value - 1) * pose.mixScaleY;
else if (bone.scaleY != 0) //
bone.scaleY = 1 + (value / bone.scaleY - 1) * pose.mixScaleY;
} else {
float s;
if (additive)
s = 1 + (value - 1) * pose.mixScaleY;
else {
s = (float)Math.sqrt(bone.b * bone.b + bone.d * bone.d) / skeleton.scaleY;
if (s != 0) s = 1 + (value / s - 1) * pose.mixScaleY;
}
bone.scaleY += (value - bone.scaleY) * pose.mixScaleY;
} else if (additive) {
float s = 1 + (value - 1) * pose.mixScaleY;
bone.b *= s;
bone.d *= s;
} else {
float b = bone.b / skeleton.scaleX, d = bone.d / skeleton.scaleY, s = (float)Math.sqrt(b * b + d * d);
if (s != 0) {
s = 1 + (value - s) * pose.mixScaleY / s;
bone.b *= s;
bone.d *= s;
}
}
}
}
@ -349,8 +350,8 @@ public class TransformConstraintData extends ConstraintData<TransformConstraint,
static public class FromShearY extends FromProperty {
public float value (Skeleton skeleton, BonePose source, boolean local, float[] offsets) {
if (local) return source.shearY + offsets[SHEARY];
float sx = 1 / skeleton.scaleX, sy = 1 / skeleton.scaleY;
return (atan2(source.d * sy, source.b * sx) - atan2(source.c * sy, source.a * sx)) * radDeg - 90 + offsets[SHEARY];
float ix = 1 / skeleton.scaleX, iy = 1 / skeleton.scaleY;
return (atan2(source.d * iy, source.b * ix) - atan2(source.c * iy, source.a * ix)) * radDeg - 90 + offsets[SHEARY];
}
}
@ -365,12 +366,12 @@ public class TransformConstraintData extends ConstraintData<TransformConstraint,
if (!additive) value -= bone.shearY;
bone.shearY += value * pose.mixShearY;
} else {
float b = bone.b, d = bone.d, by = atan2(d, b);
float sx = skeleton.scaleX, sy = skeleton.scaleY, b = bone.b / sx, d = bone.d / sy, by = atan2(d, b);
value = (value + 90) * degRad;
if (additive)
value -= PI / 2;
else {
value -= by - atan2(bone.c, bone.a);
value -= by - atan2(bone.c / sy, bone.a / sx);
if (value > PI)
value -= PI2;
else if (value < -PI) //
@ -378,8 +379,8 @@ public class TransformConstraintData extends ConstraintData<TransformConstraint,
}
value = by + value * pose.mixShearY;
float s = (float)Math.sqrt(b * b + d * d);
bone.b = cos(value) * s;
bone.d = sin(value) * s;
bone.b = cos(value) * s * sx;
bone.d = sin(value) * s * sy;
}
}
}