Vector2Rotation
Rotations are global, based on the current position of V2R_OriginObject. nDot allows to you to easily determine if V2R_TargetObject is within the Frustum of V2R_OriginObject (within its forward view) If nDot is greater than 0.8 (on a scale of 0.0 to 1.0), then it is probably within the forward view of V2R_OriginObject.
Format: RotationX, RotationY, RotationZ, nDot = this.Vector2Rotation ( V2R_OriginObject, V2R_TargetObject)
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-- Function......... : Vector2Rotation
-- Author........... :
-- Description...... :
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function TEST_ClickAndGo_Character.Vector2Rotation ( V2R_OriginObject, V2R_TargetObject)
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-- Get Scene
local hScene = application.getCurrentUserScene ( )
-- Get V2R_OriginObject position and rotation.
local x, y, z = object.getTranslation ( V2R_OriginObject, object.kGlobalSpace )
local vx, vy, vz = object.getDirection ( V2R_OriginObject, object.kGlobalSpace )
-- Get V2R_TargetObject postion.
local seex, seey, seez = object.getTranslation ( V2R_TargetObject, object.kGlobalSpace )
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-- Calculate normalized (reduced to '1') relative vector
local nx, ny, nz = math.vectorNormalize ( seex - x, seey - y, seez - z )
-- Calculate nDot
local nDot = math.vectorDotProduct ( vx, vy, vz, nx, ny, nz )
-- All this returns the the global rotation to target from V2R_OriginObject postion, and the nDot for Frustum...
return nx, ny, nz, nDot
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end
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