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Added logic to load tilesets when moving across map

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This commit is contained in:
Brendan Robert 2014-08-13 00:59:05 -05:00
parent de57fc238d
commit 5c9c04f794
1 changed files with 54 additions and 10 deletions
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64
Platform/Apple/virtual/src/tile/tile.s
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@ -38,6 +38,10 @@ NW_MAP_LOC=$52
NE_MAP_LOC=$54
SW_MAP_LOC=$56
SE_MAP_LOC=$58
NW_TILESET_LOC=$70
NE_TILESET_LOC=$72
SW_TILESET_LOC=$74
SE_TILESET_LOC=$76
; Map section IDs (255 = not loaded)
NOT_LOADED=$FF
NW_MAP_ID=$5A
@ -125,8 +129,8 @@ FINISH_MAP_LOAD
}
;----------------------------------------------------------------------
; >> RELEASE MAP SECTION
!macro releaseMapSection ptr {
; >> RELEASE MAP SECTION OR TILESET
!macro freeResource ptr {
; --> free up unused resource
LDX ptr
LDY ptr+1
@ -136,6 +140,18 @@ FINISH_MAP_LOAD
;----------------------------------------------------------------------
; >> LOAD TILES
; Load tile resource (A = Resource ID)
LOAD_TILESET
TAY
LDX #RES_TYPE_TILESET
LDA #QUEUE_LOAD
JMP mainLoader
!macro loadTileset mapData, ptr {
LDY #4
LDA (mapData),Y
JSR LOAD_TILESET
STX ptr
STY ptr+1
}
;----------------------------------------------------------------------
; >> MOVE NORTH
; Check for boundary
@ -182,11 +198,32 @@ SET_XY
STX to
}
FREE_ALL_TILES
+freeResource NW_TILESET_LOC
+freeResource NE_TILESET_LOC
+freeResource SW_TILESET_LOC
+freeResource SE_TILESET_LOC
RTS
!macro freeAllTiles {
JSR FREE_ALL_TILES
}
LOAD_ALL_TILES
+loadTileset NW_MAP_LOC, NW_TILESET_LOC
+loadTileset NE_MAP_LOC, NW_TILESET_LOC
+loadTileset SW_MAP_LOC, NW_TILESET_LOC
+loadTileset SE_MAP_LOC, NW_TILESET_LOC
RTS
!macro loadAllTiles {
JSR LOAD_ALL_TILES
}
; >> CROSS NORTH BOUNDARY (Load next section to the north)
!zone
CROSS_NORTH
+releaseMapSection SW_MAP_LOC
+releaseMapSection SE_MAP_LOC
+freeAllTiles
+freeResource SW_MAP_LOC
+freeResource SE_MAP_LOC
LDA REL_Y
CLC
ADC #SECTION_HEIGHT
@ -205,14 +242,16 @@ CROSS_NORTH
LDA (SE_MAP_LOC),Y
STA NE_MAP_ID
+loadSection NE_MAP_LOC
+loadAllTiles
+finishLoad
RTS
;----------------------------------------------------------------------
; >> CROSS EAST BOUNDARY (Load next section to the east)
!zone
CROSS_EAST
+releaseMapSection NW_MAP_LOC
+releaseMapSection SW_MAP_LOC
+freeAllTiles
+freeResource NW_MAP_LOC
+freeResource SW_MAP_LOC
LDA REL_X
SEC
SBC #SECTION_WIDTH
@ -232,14 +271,16 @@ CROSS_EAST
LDA (SW_MAP_LOC),Y
STA SE_MAP_ID
+loadSection SE_MAP_LOC
+loadAllTiles
+finishLoad
RTS
;----------------------------------------------------------------------
; >> CROSS SOUTH BOUNDARY (Load next section to the south)
!zone
CROSS_SOUTH
+releaseMapSection NW_MAP_LOC
+releaseMapSection NE_MAP_LOC
+freeAllTiles
+freeResource NW_MAP_LOC
+freeResource NE_MAP_LOC
LDA REL_Y
SEC
SBC #SECTION_HEIGHT
@ -259,14 +300,16 @@ CROSS_SOUTH
LDA (NE_MAP_LOC),Y
STA SE_MAP_ID
+loadSection SE_MAP_LOC
+loadAllTiles
+finishLoad
RTS
;----------------------------------------------------------------------
; >> CROSS WEST BOUNDARY (load next section to the west)
!zone
CROSS_WEST
+releaseMapSection NE_MAP_LOC
+releaseMapSection SE_MAP_LOC
+freeAllTiles
+freeResource NE_MAP_LOC
+freeResource SE_MAP_LOC
LDA REL_X
CLC
ADC #SECTION_WIDTH
@ -286,6 +329,7 @@ CROSS_WEST
LDA (SE_MAP_LOC),Y
STA SW_MAP_ID
+loadSection SW_MAP_LOC
+loadAllTiles
+finishLoad
RTS
;----------------------------------------------------------------------