[bb] DeltaRoll by Stevie G [ 1+ years ago ]

BlitzBot · June 29, 2017, 00:28:41

Title : DeltaRoll
Author : Stevie G
Posted : 1+ years ago

Description : Returns the roll angle between two entities

Code :

Code (blitzbasic) Select

Graphics3D 640,480,16,1

Global Camera = CreateCamera() : PositionEntity Camera, 0, 0, -30
Global Ship = CreateCone(): ScaleMesh Ship, 1, 2, 1 : EntityColor Ship, 0,0,255
Global Target = CreateCube() : EntityColor Target,255,0,0

Repeat

	If KeyHit( 57 )
		PositionEntity target, Rand(-20,20 ), Rand(-20,20 ), 10
	EndIf
	
	DR# = DELTAroll( Ship, Target )	
	TurnEntity ship, 0, 0, DR * .01
	
	RenderWorld()

	Text 0,0,DR
	
	Flip

Until KeyDown(1)

;=================================================================================
;=================================================================================
;=================================================================================

Function DELTAroll#( Source , Target )

	TFormPoint 0,0,0 , Target, Source
	Return VectorYaw ( TFormedX() , 0 , TFormedY() )

End Function

Comments :

Santiworld(Posted 1+ years ago)

in 3D only need 2 or 3 angles?i make missiles, and use deltayaw & deltapitch..is the same concept, no?

Stevie G(Posted 1+ years ago)

It is the same concept as deltayaw. I only wrote it cos someone asked me to but it's useful if your doing a 2d in 3d game using just the x + y axis instead of x + z axis. I use it myself for this purpose.

SyntaxBomb - Indie Coders

[bb] DeltaRoll by Stevie G [ 1+ years ago ]

BlitzBot