Help Calculating Rotation (Autoit) : Auto It, XYZ, Calculate, Rotation, Trig, ATan, ATan2

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09/20/2009 at 06:39AM PDT, ID: 24746602

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Help Calculating Rotation (Autoit)

Asked by nod43 in Algorithms, 3D Game Programming, Physics & Artificial Intelligence in Game Programming

Tags: Auto It, XYZ, Calculate, Rotation, Trig, ATan, ATan2

I am working on a program that takes two coords from a 3D game (X and Y, Z not relevent), and calculates how far point A (current position) is from point B (target position). However, i am having problems calculating which direction the object on point A needs to be facing (in degrees) to get to point B. I know there is some formula for this, however, I'm clueless.

So lets say my current position in the game is X-996 and Y-1071 currently facing a value of 100 (from what i see rotation is measured on a -180 to 180 scale, north being -90, east being 180, south being 90 and west being 0) and my target location is X-985 Y-1133, how would i go about calculating the rotation at which i need to be facing in order to reach my target position?

Below is the function i am currently using, that doesnt seem to work. what it does is grabs the coords from the objects current position then reads "waypoints" or pre-defined target positions from the text file. after that it tries to calculate the rotation (which is wrong) and then moves in that position towards the target position.

any help much appreciated ^_^

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             Func _Turn()
    Local $Cur_Coords = _GetCoords()
    Local $Next_Coords = StringSplit(FileReadLine(@ScriptDir & "\waypoints.txt",$Cur_Waypoint), ",") ;split x, y, z, map
 
    ;-------------------------------------------
    Local $PosX = $Cur_Coords[0]-$Next_Coords[1];x
    Local $PosY = $Cur_Coords[1]-$Next_Coords[2];y
 
		$Next_Rot = _ATan2($Next_Coords[2] - $Cur_Coords[1], $Next_Coords[1] - $Cur_Coords[0]) * 180 / $Pi
 
 
    GUICtrlSetData($Input6, $Next_Coords[1])
    GUICtrlSetData($Input7, $Next_Coords[2])
    GUICtrlSetData($Input10, Floor($Next_Rot))
 
	$Cur_Rot = _GetRotation()
 
	If $Next_Rot = $Cur_Rot Then Return $Next_Rot
 
	While $Cur_Rot <> $Next_Rot And $Run
		$Cur_Rot = _GetRotation()
		_MouseMovePlus()
		GUICtrlSetData($Input5, Floor($Cur_Rot))
	WEnd
 
    Return $Next_Rot
EndFunc

           
         

Keywords: Help Calculating Rotation (Autoit)

	Title
1	Allegro and 16 bitmap rotations

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Help Calculating Rotation (Autoit)

Asked by nod43 in Algorithms, 3D Game Programming, Physics & Artificial Intelligence in Game Programming

Tags: Auto It, XYZ, Calculate, Rotation, Trig, ATan, ATan2

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