Math Obb

scripts/vscripts/alyxlib/math/obb.lua

Functions

GetBoundingOBBData

Returns the center and half extents of an OBB in local space.

GetBoundingOBBData(mins, maxs)

Parameters

• mins
Vector
  The local space minimum corner
• maxs
Vector
  The local space maximum corner

Returns - OBBData The OBB data

GetEntityOBBData

Returns the center and half extents of an entity's OBB in local space.

GetEntityOBBData(entity)

Parameters

• entity
EntityHandle
  The entity to get the OBB data for

Returns - OBBData The OBB data

GetEntityAABB

Returns the world space minimum and maximum corners of an entity's OBB.

GetEntityAABB(entity)

Parameters

• entity
EntityHandle
  The entity to get the AABB for

Returns

• Vector

The world space minimum corner

• Vector

The world space maximum corner

AABBvsAABB

Tests if two AABBs intersect.

AABBvsAABB(aMin, aMax, bMin, bMax)

Parameters

• aMin
Vector
  The minimum corner of the first AABB
• aMax
Vector
  The maximum corner of the first AABB
• bMin
Vector
  The minimum corner of the second AABB
• bMax
Vector
  The maximum corner of the second AABB

Returns - boolean true if the AABBs intersect, false otherwise

OBBvsOBB

Tests if two OBBs intersect.

OBBvsOBB(obbDataA, originA, anglesA, obbDataB, originB, anglesB)

Parameters

• obbDataA
OBBData
  The data of the first OBB
• originA
Vector
  The world space origin of the first OBB
• anglesA
QAngle
  The angles of the first OBB
• obbDataB
OBBData
  The data of the second OBB
• originB
Vector
  The world space origin of the second OBB
• anglesB
QAngle
  The angles of the second OBB

Returns - boolean true if the OBBs intersect, false otherwise

AABBvsOBB

Tests if an AABB and an OBB intersect.

AABBvsOBB(aabbMin, aabbMax, obbData, obbOrigin, obbAngles)

Parameters

• aabbMin
Vector
  The minimum corner of the AABB
• aabbMax
Vector
  The maximum corner of the AABB
• obbData
OBBData
  The data of the OBB
• obbOrigin
Vector
  The world space origin of the OBB
• obbAngles
QAngle
  The angles of the OBB

Returns - boolean true if the AABB and OBB intersect, false otherwise

PointInAABB

Tests if a point is inside an AABB.

PointInAABB(aMin, aMax, point)

Parameters

• aMin
Vector
  The minimum corner of the AABB
• aMax
Vector
  The maximum corner of the AABB
• point
Vector
  The point to test

Returns - boolean true if the point is inside the AABB, false otherwise

PointInOBB

Tests if a point is inside an OBB.

PointInOBB(obbData, origin, angles, point)

Parameters

• obbData
OBBData
  The OBB data (center, half extents in local space)
• origin
Vector
  The world space origin of the OBB
• angles
QAngle
  The world space orientation of the OBB
• point
Vector
  The point to test

Returns - boolean true if the point is inside the OBB, false otherwise

DebugDrawOBB

Draws an OBB in the world.

DebugDrawOBB(obbData, origin, angles, color, noDepthTest, seconds)

Parameters

• obbData
OBBData
  The data of the OBB
• origin
Vector
  The world space origin of the OBB
• angles
QAngle
  The angles of the OBB
• color
Vector
  The color of the OBB
• noDepthTest
boolean
  True if the OBB should be drawn above all geometry
• seconds
number
  The number of seconds the OBB should be visible for

DebugDrawEntityOBB

Draws an entity's OBB in the world.

DebugDrawEntityOBB(entity, color, noDepthTest, seconds)

Parameters

• entity
EntityHandle
  The entity to draw the OBB for
• color
Vector
  The color of the OBB in RGB
• noDepthTest
boolean
  True if the OBB should be drawn above all geometry
• seconds
number
  The number of seconds the OBB should be visible for

DebugDrawEntityAABB

Draws an entity's AABB in the world.

The AABB is defined by the entity's bounding mins/maxs and its current origin/angles.

DebugDrawEntityAABB(entity, color, noDepthTest, seconds)

Parameters

• entity
EntityHandle
  The entity to draw the AABB for
• color
Vector
  The color of the AABB in RGB
• noDepthTest
boolean
  True if the AABB should be drawn above all geometry
• seconds
number
  The number of seconds the AABB should be visible for