;
; ZERO PAGE variables for Stardreamer
;

MatrixSize	= 24
VBasisSize	= 24

	.global MatrixOffs :zp
	.global MatrixZero :zp
	.global _MatrixTarget :zp
	.global _MatrixAbsolute :zp

	.global _VertexSource :zp
	.global _VertexTarget :zp
	.global _VertexCount :zp

	.global Vert1 :zp
	.global Vert2 :zp
	.global Vert3 :zp

	.global HighVert :zp
	.global RightVert :zp
	.global LeftVert :zp

	.global Temp1 :zp
	.global Temp2 :zp
	.global Temp3 :zp
	.global Temp4 :zp

	.global MovementFactor :zp
	.global VBRotationVector :zp
	.global VBRotationAxis1 :zp
	.global VBRotationAxis2 :zp

	.global VBSinX :zp
	.global VBSinY :zp
	.global VBSinZ :zp
	.global VBSubCosX :zp
	.global VBSubCosY :zp
	.global VBSubCosZ :zp
	.global VBXY :zp
	.global VBXZ :zp
	.global VBYZ :zp
	.global _MatrixStart :zp
	.global _MatrixWorkArea :zp

	.global guardarea :zp
	.global _Velocity :zp
	.global _Roll :zp
	.global _Climb :zp

	.global TempIndex :zp

; many of these can be combined, but worry about that later

.segment "EXTZP" : zeropage

MatrixOffs:	.byte $00
MatrixZero:	.byte $00
_MatrixTarget:	.byte $00
_MatrixAbsolute:	.word $0000

_VertexSource:	.word $0000
_VertexTarget:	.word $0000
_VertexCount:	.byte $00

Vert1:		.byte $00
Vert2:		.byte $00
Vert3:		.byte $00

HighVert:	.byte $00
RightVert:	.byte $00
LeftVert:	.byte $00

Temp1:		.byte $00
Temp2:		.byte $00
Temp3:		.byte $00
Temp4:		.byte $00

MovementFactor:   .word $0000
VBRotationVector: .byte $00
VBRotationAxis1:  .byte $00
VBRotationAxis2:  .byte $00

VBSinX:	 .word $00	;these are all used by BRotateX/Z
VBSinY:	 .word $00
VBSinZ:	 .word $00
VBSubCosX: .word $00
VBSubCosY: .word $00
VBSubCosZ: .word $00
VBXY:	 .word $00
VBXZ:	 .word $00
VBYZ:	 .word $00

_MatrixStart: .res MatrixSize*3
_MatrixWorkArea: .res MatrixSize

guardarea: .res 4
_Velocity:  .byte $00
_Roll:	 .byte $00
_Climb: .byte $00

TempIndex: .word $0000