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Add special GS page flipping code to work around the lack of text page 2 shadowing
This commit is contained in:
Jeremy Rand
parent
ed97fba75d
commit
f77826ed09
2
Makefile
2
Makefile
@ -19,7 +19,7 @@ PLATFORM_CFG=-C apple2-system.cfg
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all: $(SYS)
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%.o: %.s
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ca65 -t $(PLATFORM) -o $@ $<
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ca65 --cpu 65816 -o $@ $<
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$(SYS): $(ASM_OBJS) $(SRCS)
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cl65 -t $(PLATFORM) $(PLATFORM_CFG) --mapfile $(MAPFILE) -o $(SYS) $(SRCS) $(addprefix --obj ,$(ASM_OBJS))
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23
apple2048.c
23
apple2048.c
@ -43,6 +43,8 @@ static tPos gNewTilePos;
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static bool gPlaySounds = true;
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static void (*gSwitchToPage2)(void) = switchToPage2;
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void shortDelay(uint16_t howMuch)
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{
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while (howMuch > 0) {
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@ -95,9 +97,6 @@ void printInstructions(void)
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"AND NO MORE MOVES ARE POSSIBLE. TRY\n"
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"TO GET THE LARGEST TILE YOU CAN!\n"
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"\n"
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"IF ON A ROM 1 GS, SET ALTERNATE DISPLAY\n"
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"MODE FROM THE CDA MENU.\n"
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"\n"
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"PRESS ESCAPE OR Q TO QUIT AT ANY TIME.\n"
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"PRESS R TO START A NEW GAME.\n"
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"PRESS S TO TOGGLE SOUND.\n"
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@ -172,7 +171,7 @@ void printScore(void)
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if (highestTile == 0) {
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printf("TRY TO GET THE %ld TILE!\n", nextTarget());
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} else {
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printf("GOT %ld! NOW GET %ld!\n", highestTarget, nextTarget());
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printf("GOT %ld! NOW GET %ld!\n", highestTile, nextTarget());
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}
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}
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@ -198,7 +197,7 @@ void performAnimationsLeft(void)
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do {
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animInProgress = false;
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switchToPage2();
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gSwitchToPage2();
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for (pos = 0; pos < gNumAnims; pos++) {
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tileAnim = &(gTileAnims[pos]);
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if (tileAnim->tileString == NULL)
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@ -257,7 +256,7 @@ void performAnimationsRight(void)
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do {
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animInProgress = false;
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switchToPage2();
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gSwitchToPage2();
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for (pos = 0; pos < gNumAnims; pos++) {
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tileAnim = &(gTileAnims[pos]);
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if (tileAnim->tileString == NULL)
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@ -314,7 +313,7 @@ void performAnimationsUp(void)
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do {
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animInProgress = false;
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switchToPage2();
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gSwitchToPage2();
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for (pos = 0; pos < gNumAnims; pos++) {
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tileAnim = &(gTileAnims[pos]);
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if (tileAnim->tileString == NULL)
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@ -367,7 +366,7 @@ void performAnimationsDown(void)
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do {
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animInProgress = false;
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switchToPage2();
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gSwitchToPage2();
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for (pos = 0; pos < gNumAnims; pos++) {
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tileAnim = &(gTileAnims[pos]);
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if (tileAnim->tileString == NULL)
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@ -577,6 +576,14 @@ void newTile(tPos at, char *tileString)
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int main(void)
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{
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switch (get_ostype()) {
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case APPLE_IIGS:
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case APPLE_IIGS1:
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case APPLE_IIGS3:
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gSwitchToPage2 = gsSwitchToPage2;
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break;
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}
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printInstructions();
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initGameEngine(tileMoved, newTile);
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2
game.c
2
game.c
@ -297,7 +297,7 @@ tScore highestTarget(void)
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tScore nextTarget(void)
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{
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tTileValue value = gScoreRecord.highestTile;
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tTileValue value = gScoreRecord.highestTile + 1;
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if (value < 11)
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value = 11;
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@ -9,3 +9,4 @@
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void switchToPage2(void);
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void switchToPage1(void);
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void gsSwitchToPage2(void);
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85
textpage.s
85
textpage.s
@ -6,10 +6,14 @@
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; This file contains some assembly routines to more efficiently flip text pages.
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;
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.export _switchToPage2, _switchToPage1
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.export _switchToPage2, _switchToPage1, _gsSwitchToPage2
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.include "apple2.inc"
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.A8
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.I8
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.PC02
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_switchToPage2:
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ldx #0
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@L1:
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@ -76,3 +80,82 @@ _switchToPage2:
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_switchToPage1:
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stz LOWSCR
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rts
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_gsSwitchToPage2:
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.P816
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clc
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xce
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rep #$30
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.A16
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.I16
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ldx #0
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@L3:
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lda $400,x ; Line 0
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sta $e00800,x
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lda $480,x ; Line 1
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sta $e00880,x
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lda $500,x ; Line 2
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sta $e00900,x
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lda $580,x ; Line 3
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sta $e00980,x
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lda $600,x ; Line 4
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sta $e00a00,x
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lda $680,x ; Line 5
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sta $e00a80,x
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lda $700,x ; Line 6
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sta $e00b00,x
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lda $780,x ; Line 7
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sta $e00b80,x
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lda $428,x ; Line 8
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sta $e00828,x
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lda $4a8,x ; Line 9
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sta $e008a8,x
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lda $528,x ; Line 10
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sta $e00928,x
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lda $5a8,x ; Line 11
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sta $e009a8,x
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lda $628,x ; Line 12
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sta $e00a28,x
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lda $6a8,x ; Line 13
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sta $e00aa8,x
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lda $728,x ; Line 14
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sta $e00b28,x
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lda $7a8,x ; Line 15
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sta $e00ba8,x
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lda $450,x ; Line 16
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sta $e00850,x
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lda $4d0,x ; Line 17
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sta $e008d0,x
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lda $550,x ; Line 18
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sta $e00950,x
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lda $5d0,x ; Line 19
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sta $e009d0,x
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lda $650,x ; Line 20
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sta $e00a50,x
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lda $6d0,x ; Line 21
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sta $e00ad0,x
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lda $750,x ; Line 22
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sta $e00b50,x
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lda $7d0,x ; Line 23
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sta $e00bd0,x
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inx
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inx
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cpx #40
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beq @L4
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jmp @L3
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@L4:
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sep #$30
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.A8
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.I8
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sec
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xce
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.PC02
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stz HISCR
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rts
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