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https://github.com/badvision/lawless-legends.git
synced 2024-07-04 09:29:28 +00:00
Got the compile kinks out of the tile code but it is still untested
This commit is contained in:
Brendan Robert
parent
bc47e0bc04
commit
de57fc238d
@ -54,16 +54,17 @@ WEST =3
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DRAW_X_START = $5E ; Starting column being drawn (between 0 and VIEWPORT_WIDTH)
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DRAW_Y_START = $5F ; Starting row being drawn (between 0 and VIEWPORT_WIDTH)
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DRAW_WIDTH = $62 ; Number of columns to draw for current section (cannot be destroyed by drawing loop)
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DRAW_HEIGTH = $63 ; Number of rows to draw for current section (cannot be destroyed by drawing loop)
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DRAW_HEIGHT = $63 ; Number of rows to draw for current section (cannot be destroyed by drawing loop)
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DRAW_SECTION = $64 ; Location of section data being drawn
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TILE_BASE = $6B ; Location of tile data
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;-- These variables are set in the outer draw section but can be destroyed by the inner routine
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SECTION_X_START = $60 ; X Offset relative to current section being drawn
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SECTION_Y_START = $61 ; Y Offset relative to current section being drawn
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X_COUNTER = $66 ; Loop counter used during drawing
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Y_COUNTER = $67 ; Loop counter used during drawing
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ROW_LOCATION = $68 ; Used for pointing at row offset in map data
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Y_LOC = $67 ; Current row being drawn (between 0 and VIEWPORT_WIDTH)
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Y_LOC = $68 ; Current row being drawn (between 0 and VIEWPORT_WIDTH)
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ROW_LOCATION = $69 ; Used for pointing at row offset in map data
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TILE_SOURCE = $6D ; Location of tile data
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; >> INIT (reset map drawing vars)
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INIT
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LDA #NOT_LOADED
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@ -78,12 +79,12 @@ INIT
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;----------------------------------------------------------------------
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; >> START LOADING MAP SECTIONS
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START_LOAD
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START_MAP_LOAD
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LDX #0
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LDA #START_LOAD
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JMP mainLoader
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!macro startLoad {
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JSR START_LOAD
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JSR START_MAP_LOAD
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}
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;----------------------------------------------------------------------
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@ -115,12 +116,12 @@ LOAD_SECTION
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;----------------------------------------------------------------------
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; >> FINISH LOADING MAP SECTIONS
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FINISH_LOAD
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FINISH_MAP_LOAD
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LDX #0 ; 1 to keep open for next load, 0 for close so you can flip to HGR page 2
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LDA #FINISH_LOAD
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JMP mainLoader
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!macro finishLoad {
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JSR FINISH_LOAD
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JSR FINISH_MAP_LOAD
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}
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;----------------------------------------------------------------------
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@ -172,8 +173,8 @@ SET_XY
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; >> TRIGGER SCRIPT AT TILE (X,Y = Coordinates in section)
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;----------------------------------------------------------------------
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!macro move_word from, to {
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!move_byte from, to
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!move_byte from+1, to+1
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+move_byte from, to
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+move_byte from+1, to+1
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}
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!macro move_byte from, to {
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@ -184,107 +185,108 @@ SET_XY
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; >> CROSS NORTH BOUNDARY (Load next section to the north)
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!zone
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CROSS_NORTH
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!releaseMapSection SW_MAP_LOC
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!releaseMapSection SE_MAP_LOC
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+releaseMapSection SW_MAP_LOC
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+releaseMapSection SE_MAP_LOC
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LDA REL_Y
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CLC
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ADC #SECTION_HEIGHT
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STA REL_Y
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!move_byte NW_MAP_ID, SW_MAP_ID
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!move_word NW_MAP_LOC, SW_MAP_LOC
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!move_byte NE_MAP_ID, SE_MAP_ID
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!move_word NE_MAP_LOC, SE_MAP_LOC
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+move_byte NW_MAP_ID, SW_MAP_ID
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+move_word NW_MAP_LOC, SW_MAP_LOC
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+move_byte NE_MAP_ID, SE_MAP_ID
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+move_word NE_MAP_LOC, SE_MAP_LOC
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; Get new NW section
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!startLoad
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LDA (SW_MAP_LOC)
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+startLoad
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LDY #00
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LDA (SW_MAP_LOC),Y
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STA NW_MAP_ID
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!loadSection NW_MAP_LOC
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+loadSection NW_MAP_LOC
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; Get the new NE section
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LDA (SE_MAP_LOC)
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LDA (SE_MAP_LOC),Y
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STA NE_MAP_ID
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!loadSection NE_MAP_LOC
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!finishLoad
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+loadSection NE_MAP_LOC
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+finishLoad
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RTS
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;----------------------------------------------------------------------
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; >> CROSS EAST BOUNDARY (Load next section to the east)
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!zone
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CROSS_EAST
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!releaseMapSection NW_MAP_LOC
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!releaseMapSection SW_MAP_LOC
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+releaseMapSection NW_MAP_LOC
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+releaseMapSection SW_MAP_LOC
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LDA REL_X
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SEC
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SBC #SECTION_WIDTH
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STA REL_X
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!move_byte NE_MAP_ID, NW_MAP_ID
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!move_word NE_MAP_LOC, NW_MAP_LOC
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!move_byte SE_MAP_ID, SW_MAP_ID
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!move_word SE_MAP_LOC, SW_MAP_LOC
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+move_byte NE_MAP_ID, NW_MAP_ID
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+move_word NE_MAP_LOC, NW_MAP_LOC
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+move_byte SE_MAP_ID, SW_MAP_ID
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+move_word SE_MAP_LOC, SW_MAP_LOC
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; Get new NE section
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!startLoad
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+startLoad
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LDY #EAST
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LDA (NW_MAP_LOC),Y
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STA NE_MAP_ID
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!loadSection NE_MAP_LOC
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+loadSection NE_MAP_LOC
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; Get the new SE section
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LDY #EAST
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LDA (SW_MAP_LOC),Y
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STA SE_MAP_ID
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!loadSection SE_MAP_LOC
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!finishLoad
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+loadSection SE_MAP_LOC
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+finishLoad
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RTS
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;----------------------------------------------------------------------
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; >> CROSS SOUTH BOUNDARY (Load next section to the south)
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!zone
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CROSS_SOUTH
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!releaseMapSection NW_MAP_LOC
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!releaseMapSection NE_MAP_LOC
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+releaseMapSection NW_MAP_LOC
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+releaseMapSection NE_MAP_LOC
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LDA REL_Y
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SEC
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SBC #SECTION_HEIGHT
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STA REL_Y
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!move_byte SW_MAP_ID, NW_MAP_ID
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!move_word SW_MAP_LOC, NW_MAP_LOC
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!move_byte SE_MAP_ID, NE_MAP_ID
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!move_word SE_MAP_LOC, NE_MAP_LOC
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+move_byte SW_MAP_ID, NW_MAP_ID
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+move_word SW_MAP_LOC, NW_MAP_LOC
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+move_byte SE_MAP_ID, NE_MAP_ID
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+move_word SE_MAP_LOC, NE_MAP_LOC
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; Get new SW section
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!startLoad
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+startLoad
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LDY #SOUTH
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LDA (NW_MAP_LOC),Y
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STA SW_MAP_ID
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!loadSection SW_MAP_LOC
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+loadSection SW_MAP_LOC
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; Get the new SE section
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LDY #SOUTH
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LDA (NE_MAP_LOC),Y
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STA SE_MAP_ID
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!loadSection SE_MAP_LOC
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!finishLoad
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+loadSection SE_MAP_LOC
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+finishLoad
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RTS
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;----------------------------------------------------------------------
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; >> CROSS WEST BOUNDARY (load next section to the west)
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!zone
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CROSS_WEST
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!releaseMapSection NE_MAP_LOC
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!releaseMapSection SE_MAP_LOC
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+releaseMapSection NE_MAP_LOC
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+releaseMapSection SE_MAP_LOC
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LDA REL_X
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CLC
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ADC #SECTION_WIDTH
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STA REL_X
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!move_byte NW_MAP_ID, NE_MAP_ID
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!move_word NW_MAP_LOC, NE_MAP_LOC
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!move_byte SW_MAP_ID, SE_MAP_ID
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!move_word SW_MAP_LOC, SE_MAP_LOC
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+move_byte NW_MAP_ID, NE_MAP_ID
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+move_word NW_MAP_LOC, NE_MAP_LOC
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+move_byte SW_MAP_ID, SE_MAP_ID
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+move_word SW_MAP_LOC, SE_MAP_LOC
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; Get new NW section
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!startLoad
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+startLoad
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LDY #WEST
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LDA (NE_MAP_LOC),Y
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STA NW_MAP_ID
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!loadSection NW_MAP_LOC
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+loadSection NW_MAP_LOC
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; Get the new SE section
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LDY #WEST
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LDA (SE_MAP_LOC),Y
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STA SW_MAP_ID
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!loadSection SW_MAP_LOC
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!finishLoad
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+loadSection SW_MAP_LOC
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+finishLoad
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RTS
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;----------------------------------------------------------------------
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; >> SET PLAYER TILE (A = tile)
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@ -306,7 +308,7 @@ CROSS_WEST
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CLC
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ADC #VIEWPORT_WIDTH
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CMP #SECTION_WIDTH
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BLT .11
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BMI .11
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LDA #SECTION_WIDTH
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.11
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SEC
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@ -324,14 +326,14 @@ CROSS_WEST
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CLC
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ADC #VIEWPORT_HEIGHT
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CMP #SECTION_HEIGHT
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BLT .21
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BMI .21
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LDA #SECTION_HEIGHT
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.21
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SEC
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SBC SECTION_Y_START
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STA DRAW_HEIGHT
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!move_word ptr, DRAW_SECTION
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jsr mainDraw
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+move_word ptr, DRAW_SECTION
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JSR MainDraw
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}
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DRAW
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@ -342,20 +344,22 @@ DRAW
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.checkNorthQuads
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LDA REL_Y
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CMP SECTION_HEIGHT+VIEWPORT_VERT_PAD
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BGE .checkSouthQuads
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BMI .checkNWQuad
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JMP .checkSouthQuads
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.checkNWQuad
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; Check for NW quadrant area
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LDA REL_X
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CMP SECTION_WIDTH+VIEWPORT_HORIZ_PAD
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BGE .checkNEQuad
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!drawMapSection NW_MAP_LOC, 0, 0
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BPL .checkNEQuad
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+drawMapSection NW_MAP_LOC, 0, 0
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; Check for NE quadrant area
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.checkNEQuad
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LDA REL_X
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CMP #VIEWPORT_HORIZ_PAD+1
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BLT .finishTopQuads
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BMI .finishTopQuads
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LDA DRAW_WIDTH
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STA DRAW_X_START
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!drawMapSection NE_MAP_LOC, SECTION_WIDTH, 0
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+drawMapSection NE_MAP_LOC, SECTION_WIDTH, 0
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.finishTopQuads
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;Update Y start for bottom quadrants
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LDA DRAW_HEIGHT
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@ -367,21 +371,21 @@ DRAW
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; Check for SW quadrant area
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LDA REL_X
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CMP SECTION_WIDTH+VIEWPORT_HORIZ_PAD
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BGE .checkSEQuad
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!drawMapSection SW_MAP_LOC, 0, SECTION_HEIGHT
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BPL .checkSEQuad
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+drawMapSection SW_MAP_LOC, 0, SECTION_HEIGHT
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.checkSEQuad
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; Check for SE quadrand area
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LDA REL_X
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CMP #VIEWPORT_HORIZ_PAD+1
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BGE .drawSEQuad
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BPL .drawSEQuad
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RTS
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.drawSEQuad
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LDA DRAW_WIDTH
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STA DRAW_X_START
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!drawMapSection SE_MAP_LOC, SECTION_WIDTH, SECTION_HEIGHT
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+drawMapSection SE_MAP_LOC, SECTION_WIDTH, SECTION_HEIGHT
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RTS
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.mainDraw
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MainDraw
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;----- Tracking visible tile data -----
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;There are a total of 512 screen holes in a hires page located in xx78-xx7F and xxF8-xxFF
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;We only need 81 screen holes to track the 9x9 visible area. So to do this a little translation is needed
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@ -500,16 +504,15 @@ ROW_OFFSET = 3
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ASL
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TAX
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.drawTile !for row, 16 {
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.0 LDA (TILE_SOURCE),Y
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.2 STA DRAW_ROW, X
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.5 INY
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.6 INX
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.7 LDA (TILE_SOURCE),Y
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.9 STA DRAW_ROW, X
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!if row < 15 {
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.12 INY
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.13 DEX
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}
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LDA (TILE_SOURCE),Y ;0
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STA $2000, X ;2
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INY ;5
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INX ;6
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LDA (TILE_SOURCE),Y ;7
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STA $2000, X ;9
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!if row < 15 {
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INY ;12
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DEX ;13
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}
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}
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DEC X_COUNTER
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@ -518,12 +521,13 @@ ROW_OFFSET = 3
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TXA ; Outside the drawing part we need to put X back (divide by 2)
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LSR
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TAX
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BNE .next_col ;Should always branch
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JMP .next_col
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; Increment row
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.next_row
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DEC Y_COUNTER
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BPL .notDone
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RTS
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.notDone
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INC Y_LOC
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INC SECTION_Y_START
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JMP .rowLoop
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