3D geometry: zPointHi

       Name: zPointHi                                                [Show more]
       Type: Variable
   Category: 3D geometry
    Summary: High byte of the z-coordinate for a point
  Deep dive: Lines and points
    Context: See this variable in context in the source code
 References: This variable is used as follows:
             * AddPointToObject uses zPointHi
             * AddTempToPoint (Part 1 of 2) uses zPointHi
             * CheckLineDistance uses zPointHi
             * CopyPointToWork uses zPointHi
             * CopyTempToPoint uses zPointHi
             * CopyWorkToPoint uses zPointHi
             * DrawClippedLine (Part 4 of 6) uses zPointHi
             * DrawRadarBlip uses zPointHi
             * ProcessHorizonLine uses zPointHi
             * ProcessLine (Part 7 of 7) uses zPointHi
             * ProcessRunwayLine (Part 5 of 5) uses zPointHi
             * ProjectPoint (Part 1 of 3) uses zPointHi
             * ProjectPoint (Part 3 of 3) uses zPointHi
             * SetObjectCoords (Part 8 of 11) uses zPointHi
             * SetPoint uses zPointHi
             * SetPointCoords uses zPointHi
             * UpdateRadarBlip uses zPointHi


 The high byte of the z-coordinate for the point with ID X is at zPointHi,X.

 The coordinate is stored as a 16-bit value (zPointHi zPointLo).

 The initial contents of the variable is just workspace noise and is ignored.
 It actually contains snippets of the original source code.


.zPointHi

 EQUB &41, &20, &58, &41, &4C, &4F, &2C, &59
 EQUB &3A, &43, &4C, &43, &3A, &41, &44, &43
 EQUB &20, &44, &54, &49, &50, &3A, &53, &54
 EQUB &41, &26, &37, &37, &2C, &58, &0D, &09
 EQUB &24, &23, &20, &20, &20, &20, &20, &20
 EQUB &4C, &44, &41, &20, &58, &41, &48, &49
 EQUB &2C, &59, &3A, &41, &44, &43, &23, &35
 EQUB &3A, &53, &54, &41, &26, &37, &41, &2C
 EQUB &58, &0D, &09, &2E, &1C, &2E, &73, &74
 EQUB &69, &34, &20, &54, &59, &41, &3A, &43
 EQUB &4C, &43, &3A, &41, &44, &43, &23, &34
 EQUB &30, &3A, &54, &41, &59, &0D, &09, &38
 EQUB &1A, &2E, &73, &74, &69, &32, &20, &44
 EQUB &45, &58, &3A, &42, &50, &4C, &20, &73
 EQUB &74, &69, &33, &3A, &72, &74, &73, &0D
 EQUB &09, &42, &12, &2E, &73, &74, &69, &33
 EQUB &20, &42, &45, &51, &20, &73, &74, &69
 EQUB &31, &0D, &09, &4C, &1D, &20, &20, &20
 EQUB &20, &20, &20, &4C, &44, &41, &20, &58
 EQUB &41, &4C, &4F, &2C, &59, &3A, &53, &54
 EQUB &41, &26, &37, &37, &2C, &58, &0D, &09
 EQUB &56, &26, &20, &20, &20, &20, &20, &20
 EQUB &4C, &44, &41, &20, &58, &41, &48, &49
 EQUB &2C, &59, &3A, &53, &54, &41, &26, &37
 EQUB &41, &2C, &58, &3A, &4A, &4D, &50, &20
 EQUB &73, &74, &69, &34, &0D, &09, &60, &05
 EQUB &20, &0D, &09, &6A, &0F, &2E, &48, &49
 EQUB &54, &53, &20, &4C, &44, &58, &23, &32
 EQUB &0D, &09, &74, &1C, &2E, &68, &69, &74
 EQUB &32, &20, &54, &59, &41, &3A, &43, &4C
 EQUB &43, &3A, &41, &44, &43, &23, &34, &30
 EQUB &3A, &54, &41, &59

.zLinearHi

 EQUB &0D               \ High byte of point 252 (z-coordinate)
                        \
                        \ Point 252 is used to store the sum of all the forces
                        \ on the plane when calculating the flight model
                        \
                        \ Stored as a 16-bit value (zLinearHi zLinearLo)

.zGravityHi

 EQUB &09               \ High byte of point 253 (z-coordinate)
                        \
                        \ Point 253 is used to store the gravity vector when
                        \ calculating the flight model
                        \
                        \ Stored as a 16-bit value (zGravityHi zGravityLo)

.zTempPoint1Hi

 EQUB &7E               \ High byte of point 254 (z-coordinate)
                        \
                        \ Used as temporary point storage when rotating points
                        \ in space
                        \
                        \ Stored as a 16-bit value (zTempPoint1Hi zTempPoint1Lo)

.zTempPoint2Hi

 EQUB &28               \ High byte of point 255 (z-coordinate)
                        \
                        \ Used as temporary point storage when rotating points
                        \ in space
                        \
                        \ Stored as a 16-bit value (zTempPoint2Hi zTempPoint2Lo)