diff options
| -rw-r--r-- | modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs b/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs index 124410a1c2..b30012d214 100644 --- a/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs +++ b/modules/mono/glue/GodotSharp/GodotSharp/Core/Mathf.cs @@ -194,6 +194,33 @@ namespace Godot } /// <summary> + /// Cubic interpolates between two rotation values with shortest path + /// by the factor defined in <paramref name="weight"/> with pre and post values. + /// See also <see cref="LerpAngle"/>. + /// </summary> + /// <param name="from">The start value for interpolation.</param> + /// <param name="to">The destination value for interpolation.</param> + /// <param name="pre">The value which before "from" value for interpolation.</param> + /// <param name="post">The value which after "to" value for interpolation.</param> + /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param> + /// <returns>The resulting value of the interpolation.</returns> + public static real_t CubicInterpolateAngle(real_t from, real_t to, real_t pre, real_t post, real_t weight) + { + real_t fromRot = from % Mathf.Tau; + + real_t preDiff = (pre - fromRot) % Mathf.Tau; + real_t preRot = fromRot + (2.0f * preDiff) % Mathf.Tau - preDiff; + + real_t toDiff = (to - fromRot) % Mathf.Tau; + real_t toRot = fromRot + (2.0f * toDiff) % Mathf.Tau - toDiff; + + real_t postDiff = (post - toRot) % Mathf.Tau; + real_t postRot = toRot + (2.0f * postDiff) % Mathf.Tau - postDiff; + + return CubicInterpolate(fromRot, toRot, preRot, postRot, weight); + } + + /// <summary> /// Cubic interpolates between two values by the factor defined in <paramref name="weight"/> /// with pre and post values. /// It can perform smoother interpolation than <see cref="CubicInterpolate"/> @@ -221,6 +248,39 @@ namespace Godot } /// <summary> + /// Cubic interpolates between two rotation values with shortest path + /// by the factor defined in <paramref name="weight"/> with pre and post values. + /// See also <see cref="LerpAngle"/>. + /// It can perform smoother interpolation than <see cref="CubicInterpolateAngle"/> + /// by the time values. + /// </summary> + /// <param name="from">The start value for interpolation.</param> + /// <param name="to">The destination value for interpolation.</param> + /// <param name="pre">The value which before "from" value for interpolation.</param> + /// <param name="post">The value which after "to" value for interpolation.</param> + /// <param name="weight">A value on the range of 0.0 to 1.0, representing the amount of interpolation.</param> + /// <param name="toT"></param> + /// <param name="preT"></param> + /// <param name="postT"></param> + /// <returns>The resulting value of the interpolation.</returns> + public static real_t CubicInterpolateAngleInTime(real_t from, real_t to, real_t pre, real_t post, real_t weight, + real_t toT, real_t preT, real_t postT) + { + real_t fromRot = from % Mathf.Tau; + + real_t preDiff = (pre - fromRot) % Mathf.Tau; + real_t preRot = fromRot + (2.0f * preDiff) % Mathf.Tau - preDiff; + + real_t toDiff = (to - fromRot) % Mathf.Tau; + real_t toRot = fromRot + (2.0f * toDiff) % Mathf.Tau - toDiff; + + real_t postDiff = (post - toRot) % Mathf.Tau; + real_t postRot = toRot + (2.0f * postDiff) % Mathf.Tau - postDiff; + + return CubicInterpolateInTime(fromRot, toRot, preRot, postRot, weight, toT, preT, postT); + } + + /// <summary> /// Returns the point at the given <paramref name="t"/> on a one-dimensional Bezier curve defined by /// the given <paramref name="control1"/>, <paramref name="control2"/> and <paramref name="end"/> points. /// </summary> |