Camera pivot of a pivot not moving?
Blitz3D Forums/Blitz3D Programming/Camera pivot of a pivot not moving?
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| Ok, I've got a pivot on the ground. Above and back a bit is another pivot, whose parent is the pivot on the ground. There's a camera attached to it so you can see the problem. Move the ground pivot. The camera pivot moves. The camera moves. Except that it doesn't. Am I missing something here? [CODE] ;oh snap! there's trouble in graphics land! Const SW=640,SH=480 Graphics3D SW,SH SetBuffer BackBuffer() ;I'm camera pivot, sitting on the floor Global cameraPivot=CreatePivot() RotateEntity cameraPivot,0,45,0 ;see? here I am! s=CreateSphere(10,cameraPivot) ScaleEntity s,.1,.1,.1 ;here's my best friend in the world, other camera pivot holyGeezOtherCameraPivot=CreatePivot(cameraPivot) camera=CreateCamera(holyGeezOtherCameraPivot) ;he's way up in the sky! OMG! PositionEntity holyGeezOtherCameraPivot,10,10,-10,True RotateEntity holyGeezOtherCameraPivot,45,0,0 ;We love to see with light, don't you? light=CreateLight(1,camera) MoveEntity light,20,0,0 ;and we also love crap on the ground to see that we're moving For i=0 To 500 r=Rand(1,4) Select r Case 1: o=CreateCube() Case 2: o=CreateSphere() Case 3: o=CreateCylinder() Case 4: o=CreateCone() End Select PositionEntity o,Rnd#(-10,10),0,Rnd#(-10,10) ScaleEntity o,.1,.1,.1 EntityColor o,125*(Rand(0,2)),125*(Rand(0,2)),125*(Rand(0,2)) Next ;i ;let's begin: While Not KeyDown(1) getInputs() UpdateWorld RenderWorld Text 0,0,"The other pivot's x: "+EntityX#(holyGeezOtherCameraPivot) Text 0,20,"The other pivot's z: "+EntityZ#(holyGeezOtherCameraPivot) Text 0,400,"Use the mouse to move the camera pivot on the floor." Text 0,420,"Use the left & right arrow keys to rotate the pivot on the floor." Text 0,440,"Note how the pivot in the air (swinging around with the camera)" Text 0,460,"DOESN'T MOVE!!!!!!" Rect MouseX()-2,MouseY()-2,5,5 Flip Cls Wend Function getInputs() TurnEntity cameraPivot,0,(KeyDown(203)-KeyDown(205)),0 If MouseY()>SH-50 Then MoveEntity cameraPivot,0,0,-.1 If MouseY()<50 Then MoveEntity cameraPivot,0,0,.1 If MouseX()>SW-50 Then MoveEntity cameraPivot,.1,0,0 If MouseX()<50 Then MoveEntity cameraPivot,-.1,0,0 End Function [/CODE] Note the X & Y position of the other pivot. The same is the case for the camera. Move it all you like, it stays in one spot according to the entityX & entityz. |
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Welcome to the world of Local coords and Global coords...Text 0,0,"The other pivot's x: "+EntityX#(holyGeezOtherCameraPivot,True) Text 0,20,"The other pivot's z: "+EntityZ#(holyGeezOtherCameraPivot,True) What Blitz was telling you was that relative to camerapivot, holyGeezOtherCameraPivot was not moving. |
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| So... how do you get the Global coords? |
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| Wait, I bet it has something to do with EntityX#(entity[,global])... n/m |
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