Vectors extensions

Tagged: extension, vector

This topic contains 3 replies, has 2 voices, and was last updated by nerobot 1 year, 5 months ago.

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September 8, 2017 at 4:02 am #10330

nerobot

Participant

Bring some const into our vectors to simplify code view.

Before:

position2d=New Vec2f( 0 )
'or
position2d=New Vec2f

'restore scale
scale=New Vec3f( 1 )

position2d=New Vec2f( 0 )

'or

position2d=New Vec2f

'restore scale

scale=New Vec3f( 1 )

Now:

position2d=Vec2f.Zero
scale=Vec3f.One

1 2	position2d=Vec2f.Zero scale=Vec3f.One

Extensions code

(updated with Mark’s advice):

Struct Vec2i Extension
	
	Const Zero := New Vec2i( 0 )
	Const One := New Vec2i( 1 )
	
End

Struct Vec2f Extension
	
	Const Zero := New Vec2f( 0 )
	Const Half := New Vec2f( .5 )
	Const One := New Vec2f( 1 )
	
End

Struct Vec3f Extension
	
	Const Zero := New Vec3f( 0 )
	Const Half := New Vec3f( .5 )
	Const One := New Vec3f( 1 )
	
End

Struct Vec4f Extension
	
	Const Zero := New Vec4f( 0 )
	Const Half := New Vec4f( .5 )
	Const One := New Vec4f( 1 )
	
End

Struct Vec2i Extension

Const Zero := New Vec2i( 0 )

Const One := New Vec2i( 1 )

End

Struct Vec2f Extension

Const Zero := New Vec2f( 0 )

Const Half := New Vec2f( .5 )

Const One := New Vec2f( 1 )

End

Struct Vec3f Extension

Const Zero := New Vec3f( 0 )

Const Half := New Vec3f( .5 )

Const One := New Vec3f( 1 )

End

Struct Vec4f Extension

Const Zero := New Vec4f( 0 )

Const Half := New Vec4f( .5 )

Const One := New Vec4f( 1 )

End

September 16, 2017 at 12:14 am #10501

Mark Sibly

Keymaster

Just a quick note that Vec2, Vec3 etc have single component ctors too, eg: New Vec3f( .8 ) is the same as New Vec3f( .8,.8,.8 ).

October 31, 2017 at 1:33 pm #11388

nerobot

Participant

A few helpers for vectors – I started to use them instead of New Vec2_x(...):

Function v2f:Vec2f( x:Float,y:Float )
	Return New Vec2f( x,y )
End
Function v2f:Vec2f( v:Float )
	Return New Vec2f( v,v )
End

Function v2i:Vec2i( x:Int,y:Int )
	Return New Vec2i( x,y )
End
Function v2i:Vec2i( v:Int )
	Return New Vec2i( v,v )
End

Function v2f:Vec2f( x:Float,y:Float )

Return New Vec2f( x,y )

End

Function v2f:Vec2f( v:Float )

Return New Vec2f( v,v )

End

Function v2i:Vec2i( x:Int,y:Int )

Return New Vec2i( x,y )

End

Function v2i:Vec2i( v:Int )

Return New Vec2i( v,v )

End

November 4, 2017 at 7:45 am #11467

nerobot

Participant

Struct Vec2<T> Extension
	
	Operator |:Vec2<T>( other:Vec2<T> )
		Return Self+other
	End
	
End

Class Pivot Final
	
	Const Top:=v2f( 0,0 )
	Const Left:=v2f( 0,0 )
	Const Right:=v2f( 1,0 )
	Const Bottom:=v2f( 0,1 )
	Const HCenter:=v2f( .5,0 )
	Const VCenter:=v2f( 0,.5 )
	
	Const Center:=HCenter|VCenter
	
	Const TopLeft:=Top|Left
	Const TopCenter:=Top|HCenter
	Const TopRight:=Top|Right
	
	Const BottomLeft:=Bottom|Left
	Const BottomCenter:=Bottom|HCenter
	Const BottomRight:=Bottom|Right
	
	Const LeftTop:=Left|Top
	Const LeftCenter:=Left|VCenter
	Const LeftBottom:=Left|Bottom
	
	Const RightTop:=Right|Top
	Const RightCenter:=Right|VCenter
	Const RightBottom:=Right|Bottom
	
End

Struct Vec2<T> Extension

Operator |:Vec2<T>( other:Vec2<T> )

Return Self+other

End

Class Pivot Final

Const Top:=v2f( 0,0 )

Const Left:=v2f( 0,0 )

Const Right:=v2f( 1,0 )

Const Bottom:=v2f( 0,1 )

Const HCenter:=v2f( .5,0 )

Const VCenter:=v2f( 0,.5 )

Const Center:=HCenter|VCenter

Const TopLeft:=Top|Left

Const TopCenter:=Top|HCenter

Const TopRight:=Top|Right

Const BottomLeft:=Bottom|Left

Const BottomCenter:=Bottom|HCenter

Const BottomRight:=Bottom|Right

Const LeftTop:=Left|Top

Const LeftCenter:=Left|VCenter

Const LeftBottom:=Left|Bottom

Const RightTop:=Right|Top

Const RightCenter:=Right|VCenter

Const RightBottom:=Right|Bottom

End

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