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[libgdx] Physics WIP.

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This commit is contained in:
Nathan Sweet 2023-11-06 17:48:42 -04:00
parent 45b27b2907
commit b40b40ffe1
1 changed files with 80 additions and 27 deletions
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107
spine-libgdx/spine-libgdx/src/com/esotericsoftware/spine/PhysicsConstraint.java
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@ -202,40 +202,93 @@ public class PhysicsConstraint implements Updatable {
if (y) bone.worldY += yOffset * mix; if (y) bone.worldY += yOffset * mix;
} }
if (rotateOrShearX) { // Smoothing.
float r = rotateOffset * mix, ra = bone.a, sin, cos; if (physics != Physics.none && false) {
if (data.rotate) { float a = (Math.min(remaining / data.step, 1) - 1) * mix;
if (data.shearX) { if (rotateOrShearX) {
r *= 0.5f; float rotateOffset = rotateVelocityLast * a;
sin = sin(r); float r = rotateOffset * mix, ra = bone.a, sin, cos;
cos = cos(r); if (data.rotate) {
bone.a = cos * ra - sin * bone.c; if (data.shearX) {
bone.c = sin * ra + cos * bone.c; r *= 0.5f;
ra = bone.a; sin = sin(r);
cos = cos(r);
bone.a = cos * ra - sin * bone.c;
bone.c = sin * ra + cos * bone.c;
ra = bone.a;
} else {
sin = sin(r);
cos = cos(r);
}
float rb = bone.b;
bone.b = cos * rb - sin * bone.d;
bone.d = sin * rb + cos * bone.d;
} else { } else {
sin = sin(r); sin = sin(r);
cos = cos(r); cos = cos(r);
} }
float rb = bone.b; bone.a = cos * ra - sin * bone.c;
bone.b = cos * rb - sin * bone.d; bone.c = sin * ra + cos * bone.c;
bone.d = sin * rb + cos * bone.d; }
} else { if (scaleX) {
sin = sin(r);
cos = cos(r);
} }
bone.a = cos * ra - sin * bone.c;
bone.c = sin * ra + cos * bone.c;
} }
if (scaleX) {
float s = 1 + scaleOffset * mix; if (false) {
bone.a *= s; // Local.
bone.c *= s; if (rotateOrShearX) {
float r = bone.worldToLocalRotation((atan2(bone.c, bone.a) + rotateOffset * mix) * radDeg) - bone.arotation;
if (data.rotate) {
if (data.shearX) {
r *= 0.5f;
bone.ashearX += r;
}
bone.arotation += r;
} else
bone.ashearX += r;
}
if (scaleX) bone.ascaleX *= 1 + scaleOffset * mix;
bone.update(null);
if (physics == Physics.update) {
tx = l * bone.a;
ty = l * bone.c;
}
} else {
if (rotateOrShearX) {
float r = rotateOffset * mix, ra = bone.a, sin, cos;
if (data.rotate) {
if (data.shearX) {
r *= 0.5f;
sin = sin(r);
cos = cos(r);
bone.a = cos * ra - sin * bone.c;
bone.c = sin * ra + cos * bone.c;
ra = bone.a;
} else {
sin = sin(r);
cos = cos(r);
}
float rb = bone.b;
bone.b = cos * rb - sin * bone.d;
bone.d = sin * rb + cos * bone.d;
} else {
sin = sin(r);
cos = cos(r);
}
bone.a = cos * ra - sin * bone.c;
bone.c = sin * ra + cos * bone.c;
}
if (scaleX) {
float s = 1 + scaleOffset * mix;
bone.a *= s;
bone.c *= s;
}
if (physics == Physics.update) {
tx = l * bone.a;
ty = l * bone.c;
}
bone.updateAppliedTransform();
} }
if (physics == Physics.update) {
tx = l * bone.a;
ty = l * bone.c;
}
bone.updateAppliedTransform();
} }
/** The bone constrained by this physics constraint. */ /** The bone constrained by this physics constraint. */