ManipulationTransformHandler

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This page documents the supported public API surface only. Private, internal, benchmark, test, and implementation-detail types are intentionally omitted.

Declaration

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public class ManipulationTransformHandler

Summary

Core transform operations for manipulated objects (engine-agnostic). Handles rotation, flip, and other transform operations without engine dependencies.

Responsibilities:

Apply rotation transformations
Apply horizontal/vertical flips
Preserve transform state
Provide rotation utility functions

Metadata

Namespace: GridPlacement.Core.Services.Manipulation

Source File: cs/Core/Services/Manipulation/ManipulationTransformHandler.cs

Assembly: GridPlacement.Core

Type: class

Methods

ApplyRotation

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public float ApplyRotation(
    float currentRotation,
    float degrees
)

Applies rotation to target transform.

Parameters

Name	Description
`currentRotation`	Current rotation in degrees
`degrees`	Rotation amount in degrees (0-360)

Returns

New rotation in degrees

ApplyFlipHorizontal

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public CoreVector2 ApplyFlipHorizontal(CoreVector2 currentScale)

Applies horizontal flip (mirror across Y axis).

Parameters

Name	Description
`currentScale`	Current scale vector

Returns

Scale magnitude normalized without encoding flip in scale X

ApplyFlipVertical

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public CoreVector2 ApplyFlipVertical(CoreVector2 currentScale)

Applies vertical flip (mirror across X axis).

Parameters

Name	Description
`currentScale`	Current scale vector

Returns

Scale magnitude normalized without encoding flip in scale Y

ApplyFlipHorizontal

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public TransformState ApplyFlipHorizontal(TransformState currentState)

Applies a horizontal flip by toggling explicit flip state while preserving scale magnitude.

Parameters

Name	Description
`currentState`	Current transform state

Returns

Updated transform state with horizontal flip state toggled

ApplyFlipVertical

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public TransformState ApplyFlipVertical(TransformState currentState)

Applies a vertical flip by toggling explicit flip state while preserving scale magnitude.

Parameters

Name	Description
`currentState`	Current transform state

Returns

Updated transform state with vertical flip state toggled

ApplyRotationRadians

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public float ApplyRotationRadians(
    float currentRotation,
    float radians
)

Applies rotation in radians to target transform.

Parameters

Name	Description
`currentRotation`	Current rotation in radians
`radians`	Rotation amount in radians

Returns

New rotation in radians

SetRotation

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public float SetRotation(float degrees)

Sets absolute rotation.

Parameters

Name	Description
`degrees`	Absolute rotation in degrees

Returns

Rotation in degrees

SetRotationRadians

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public float SetRotationRadians(float radians)

Sets absolute rotation in radians.

Parameters

Name	Description
`radians`	Absolute rotation in radians

Returns

Rotation in radians

ResetRotation

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public float ResetRotation()

Resets rotation to identity (0 degrees).

Returns

Identity rotation (0 degrees)

ResetScale

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public CoreVector2 ResetScale()

Resets scale to identity (1, 1).

Returns

Identity scale

IsFlippedHorizontal

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public bool IsFlippedHorizontal(CoreVector2 scale)

Checks if the scale is flipped horizontally.

Parameters

Name	Description
`scale`	Scale vector to check

Returns

Always false because flip state is no longer encoded in scale X

IsFlippedVertical

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public bool IsFlippedVertical(CoreVector2 scale)

Checks if the scale is flipped vertically.

Parameters

Name	Description
`scale`	Scale vector to check

Returns

Always false because flip state is no longer encoded in scale Y

NormalizeRotation

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public static float NormalizeRotation(float degrees)

Normalizes rotation to 0-360 degree range.

Parameters

Name	Description
`degrees`	Rotation to normalize

Returns

Normalized rotation in degrees

NormalizeRotationRadians

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public static float NormalizeRotationRadians(float radians)

Normalizes rotation to 0-2π radian range.

Parameters

Name	Description
`radians`	Rotation to normalize

Returns

Normalized rotation in radians

DegreesToRadians

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public static float DegreesToRadians(float degrees)

Converts degrees to radians.

Parameters

Name	Description
`degrees`	Angle in degrees

Returns

Angle in radians

RadiansToDegrees

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public static float RadiansToDegrees(float radians)

Converts radians to degrees.

Parameters

Name	Description
`radians`	Angle in radians

Returns

Angle in degrees

ApplySnappedRotation

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public float ApplySnappedRotation(
    float currentRotation,
    float degrees,
    float increment
)

Applies a rotation that snaps to the nearest increment.

Parameters

Name	Description
`currentRotation`	Current rotation in degrees
`degrees`	Desired rotation in degrees
`increment`	Snap increment in degrees

Returns

Snapped rotation in degrees