Added help screen

CompileFont.py

@@ -1,6 +1,7 @@
 #!/usr/bin/python3
 
 import sys
+import math
 import PIL
 from PIL import Image
 from numpy import asarray
@@ -160,7 +161,8 @@ def main(argv):
 
 def scaleForFontWidth(charWidth):
 	output = ""
-	for i in range(0,(int)(charWidth/4)):
+	shiftCount = math.log(charWidth/2,2)
+	for i in range(0,(int)(shiftCount)):
 		output = output + "\tasl\n"
 	return output
 	

Makefile

@@ -68,7 +68,7 @@ fonts:
 	rm -f $(FONTBANK)
 	./CompileFont.py 4 5 48 0 "tinyNum" "Art/Assets/TinyNumbers.gif" > fonts.s
 	./CompileFont.py 8 8 32 0 "font8" "Art/Assets/Font8x8.gif" >> fonts.s
-#	./CompileFont.py 16 16 32 14 "font16" "Art/Assets/Font16x16.gif" > font16x16.s
+	./CompileFont.py 16 16 32 0 "font16" "Art/Assets/Font16x16.gif" >> fonts.s
 	@PATH=$(PATH):/usr/local/bin; $(CL65) -t apple2enh -C linkerConfig --cpu 65816 --start-addr 0000 -lfontEngine.lst fontEngine.s -o $(FONTBANK)
 	rm -f fontEngine.o
 

fontEngine.s

@@ -29,6 +29,7 @@ renderStringReturn:
 fontJumpTable:
 	.addr renderString_tinyNum
 	.addr renderString_font8
+	.addr renderString_font16
 
 
 .include "fonts.s"

graphics.s

@@ -229,17 +229,14 @@ vblInterruptHandler:
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; setBorderAtScanLine
 ;
-; X = Scan Line Number
-;
 ; Trashes A
 ;
 setBorderAtScanLine:
-	dex				; Scanline interrupts technically fire on the previous line
 
 	BITS8A
-	lda $e19d00,x		; Enable interrupt on requested scanline
+	lda $e19d92			; Enable interrupt on scanline 146
 	ora #%01000000
-	sta $e19d00,x
+	sta $e19d92
 
 	lda $e19dc7			; Enable interrupt on scanline 199
 	ora #%01000000
@@ -264,14 +261,17 @@ scanLineInterruptHandler:
 	and #%11011111
 	sta $e0c032
 
-	lda scanLineColorChangePhaseCounter
-	beq scanLineInterruptHandler0
+	lda $e0C02f
+    asl         ; VA is now in the Carry flag
+	lda $e0C02e
+    rol         ; Roll Carry into bit 0. A now contains line number
+	cmp #155
+	bcc scanLineInterruptHandler0
 
 	lda BORDERCOLOR	; Set border color
 	and #$f0
 	ora #$7			; Set to sky at bottom of screen
 	sta BORDERCOLOR
-	dec scanLineColorChangePhaseCounter
 	bra scanLineInterruptHandlerDone
 
 scanLineInterruptHandler0:
@@ -279,15 +279,11 @@ scanLineInterruptHandler0:
 	and #$f0
 	ora #$4
 	sta BORDERCOLOR
-	inc scanLineColorChangePhaseCounter
 
 scanLineInterruptHandlerDone:
 	clc
 	rtl
 
-scanLineColorChangePhaseCounter:
-	.byte 0
-
 ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 ; setScanlinePalette
 ; Set the palette for a given scan line

input.s

@@ -239,3 +239,20 @@ kbdScanTab_store:
 breakpoint:
 	.word 0
 
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; kbdWaitForAnyKey
+;
+; Waits for any keypress
+;
+; Trashes A
+;
+kbdWaitForAnyKey:
+	BITS8
+
+kbdWaitForAnyKeyLoop:
+	lda KBD
+	bpl kbdWaitForAnyKeyLoop
+	sta KBDSTROBE
+	BITS16
+	rts

loader.s

@@ -244,24 +244,23 @@ mainContinue2:
 	EMULATION
 
 	; Load rest of font data into bank 0	(needed if font size exceeds BUFFERSIZE)
-;	jsr PRODOS
-;	.byte $ca
-;	.addr fileRead
-;	bne ioErrorJmp
+	jsr PRODOS
+	.byte $ca
+	.addr fileRead
+	bne ioErrorJmp
 
 	; Close the file
 	jsr PRODOS
 	.byte $cc
 	.addr fileClose
 
-;	NATIVE
+	NATIVE
 
 	; Copy rest of font data into bank 5 (needed if font size exceeds BUFFERSIZE)
-;	ldx fileReadLen
-;	txa
-;	lda #5
-;	ldy #BUFFERSIZE
-;	jsr copyBytes
+	ldx fileReadLen
+	lda #5
+	ldy #BUFFERSIZE
+	jsr copyBytes
 
 	bra mainContinue3
 
@@ -270,7 +269,7 @@ ioErrorJmp:
 
 mainContinue3:
 	
-;	EMULATION
+	EMULATION
 
 	; Open the title screen file
 	jsr PRODOS

titleScreen.s

@@ -51,7 +51,6 @@ titleScreenCopyLoop:
 	; Render menu text
 	jsr titleScreenRenderMenu
 
-	ldx #147
 	jsr setBorderAtScanLine
 
 	; Fade in
@@ -178,6 +177,8 @@ titleScreenKeyboardMenuDown:
 titleScreenKeyboardMenuGo:
 	lda menuSelection
 	beq titleScreenBeginGame
+	cmp #1
+	beq titleScreenHelp
 	cmp #2
 	beq titleScreenQuit
 
@@ -187,8 +188,7 @@ titleScreenMainLoopEndFrame:
 
 titleScreenBeginGame:
 	; Transition to gameplay
-	jsr unsetVBLInterruptVector
-	jsr unsetScanLineInterruptVector
+	jsr titleScreenRemoveBorderEffect
 	stz menuActionRequested
 	lda #skyPalette
 	sta PARAML2
@@ -196,8 +196,25 @@ titleScreenBeginGame:
 	jmp beginGameplay
 
 titleScreenQuit:
+	jsr titleScreenRemoveBorderEffect
 	jmp quitGame
 
+titleScreenHelp:
+	jsr titleScreenRemoveBorderEffect
+	stz menuActionRequested
+
+	; Fade out
+	lda #skyPalette
+	sta PARAML2
+	jsr paletteFade
+	jmp titleScreenRenderHelp
+
+titleScreenRemoveBorderEffect:
+	jsr unsetVBLInterruptVector
+	jsr unsetScanLineInterruptVector
+	rts
+
+
 titleAnimationCounter:
 	.word 0
 titleAnimationPos0:
@@ -307,3 +324,106 @@ titleScreenUnRenderSelection:
 	lda #1
 	jsl renderStringFar
 	rts
+
+
+;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
+; titleScreenRenderHelp
+;
+; Render the help menu
+;
+titleScreenRenderHelp:
+	SAVE_AXY
+
+	; Clear screen
+	ldx #0
+	ldy #200
+	jsr colorFill
+
+	; Draw help text
+	lda #helpText0
+	sta PARAML0
+	ldy #$2c8a
+	lda #1
+	jsl renderStringFar
+
+	lda #helpText1
+	sta PARAML0
+	ldy #$32ca
+	lda #1
+	jsl renderStringFar
+
+	lda #helpText2
+	sta PARAML0
+	ldy #$390a
+	lda #1
+	jsl renderStringFar
+
+	lda #helpText3
+	sta PARAML0
+	ldy #$4bed
+	lda #2
+	jsl renderStringFar
+
+	lda #helpText4
+	sta PARAML0
+	ldy #$572d
+	lda #2
+	jsl renderStringFar
+
+	lda #helpText5
+	sta PARAML0
+	ldy #$6265
+	lda #2
+	jsl renderStringFar
+
+	lda #helpText6
+	sta PARAML0
+	ldy #$6dad
+	lda #2
+	jsl renderStringFar
+
+	lda #helpText7
+	sta PARAML0
+	ldy #$78ed
+	lda #2
+	jsl renderStringFar
+
+	lda #helpText8
+	sta PARAML0
+	ldy #$90b7
+	lda #1
+	jsl renderStringFar
+
+	; Fade in
+	lda #titlePalette
+	sta PARAML2
+	jsr paletteFade
+
+	jsr kbdWaitForAnyKey
+
+	; Fade out
+	lda #skyPalette
+	sta PARAML2
+	jsr paletteFade
+
+	RESTORE_AXY
+	jmp titleScreen
+
+helpText0:
+	pstring "SPROCKET AND TINKER DO NOT GET ALONG!"
+helpText1:
+	pstring "YOUR GOAL IS TO ANGER THE OTHER CAT"
+helpText2:
+	pstring "SO MUCH THAT SHE PEES AND RUNS OFF."
+helpText3:
+	pstring "_^ AIM"
+helpText4:
+	pstring "\] POWER"
+helpText5:
+	pstring "`ab FIRE"
+helpText6:
+	pstring "ef WEAPON"
+helpText7:
+	pstring "cd SCROLL"
+helpText8:
+	pstring "PRESS ANY KEY"