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Elite on the BBC Micro

Charts: hm [Electron version]

Name: hm [Show more] Type: Subroutine Category: Charts Summary: Select the closest system and redraw the chart crosshairs
Context: See this subroutine in context in the source code Variations: See code variations for this subroutine in the different versions References: This subroutine is called as follows: * TT102 calls hm * hyp calls hm

Set the system closest to galactic coordinates (QQ9, QQ10) as the selected system, redraw the crosshairs on the chart accordingly (if they are being shown), and, if this is not a space view, clear the bottom three text rows of the screen.
.hm JSR TT103 \ Draw small crosshairs at coordinates (QQ9, QQ10), \ which will erase the crosshairs currently there JSR TT111 \ Select the system closest to galactic coordinates \ (QQ9, QQ10) JSR TT103 \ Draw small crosshairs at coordinates (QQ9, QQ10), \ which will draw the crosshairs at our current home \ system LDA QQ11 \ If this is a space view, return from the subroutine BEQ SC5 \ (as SC5 contains an RTS) \ Otherwise fall through into CLYNS to clear space at \ the bottom of the screen