options

2026-07-18 18:46:43 +02:00
parent e9c69864f1
commit 84e856c5eb
11 changed files with 555 additions and 58 deletions
@@ -0,0 +1,194 @@
+; -----------------------------------------------------------
+; options.asm - optional extras, toggled with fire:
+;   runner gun    - player 1 shoots with fire; a hit enemy
+;                   respawns elsewhere after a pause
+;   spin cooldown - the wall spinner needs a recharge between
+;                   two spins, shown on the status row
+; the settings live here and survive between rounds
+; -----------------------------------------------------------
+
+OPT_ITEMS = 3
+
+options_init:
+    jsr clear_screen
+
+    +prbig 1, 6, WHITE, txt_options, 7
+
+    +prtext 19, 6, LGREY, txt_oh1, txt_oh1e-txt_oh1
+    +prtext 20, 4, LGREY, txt_oh2, txt_oh2e-txt_oh2
+
+    lda #0
+    sta optsel
+    +setupd options_update
+    rts
+
+options_update:
+    ; joystick / w-s steps the cursor (edge detected)
+    jsr read_joy
+    lda joyb
+    and #3
+    beq ou_udrel
+    lda udheld
+    bne ou_udend
+    lda #1
+    sta udheld
+    lda joyb
+    and #1               ; up
+    beq ou_down
+    lda optsel
+    beq ou_udend
+    dec optsel
+    lda #SFX_CURSOR
+    jsr sfx_play
+    jmp ou_udend
+ou_down:
+    lda optsel
+    cmp #OPT_ITEMS-1
+    beq ou_udend
+    inc optsel
+    lda #SFX_CURSOR
+    jsr sfx_play
+    jmp ou_udend
+ou_udrel:
+    lda #0
+    sta udheld
+ou_udend:
+
+    ; the three lines, the picked one in yellow
+    ldx #0
+oo_items:
+    txa
+    pha
+    jsr draw_oitem
+    pla
+    tax
+    inx
+    cpx #OPT_ITEMS
+    bne oo_items
+
+    ; the current values next to the two settings
+    ldx opt_shoot
+    lda #10
+    jsr put_oval
+    ldx opt_cool
+    lda #13
+    jsr put_oval
+
+    ; blinking '>' cursor in front of the picked line
+    lda #$20
+    sta SCREEN+10*40+7
+    sta SCREEN+13*40+7
+    sta SCREEN+16*40+7
+    lda framectr
+    and #16
+    bne ou_fire
+    ldx optsel
+    lda ocur_lo,x
+    sta scrlo
+    lda ocur_hi,x
+    sta scrhi
+    ldy #0
+    lda #62              ; '>'
+    sta (scrlo),y
+    lda scrhi
+    clc
+    adc #$d4             ; same cell in color RAM
+    sta scrhi
+    lda #YELLOW
+    sta (scrlo),y
+
+ou_fire:
+    ; fire toggles the picked setting / leaves on back
+    jsr start_edge
+    beq ou_done
+    lda optsel
+    cmp #2
+    beq ou_back
+    cmp #1
+    beq ou_tcool
+    lda opt_shoot
+    eor #1
+    sta opt_shoot
+    jmp ou_tsfx
+ou_tcool:
+    lda opt_cool
+    eor #1
+    sta opt_cool
+ou_tsfx:
+    lda #SFX_SELECT
+    jsr sfx_play
+ou_done:
+    rts
+ou_back:
+    lda #SFX_SELECT
+    jsr sfx_play
+    jmp menu_init
+
+; ---- draw option line X, yellow when it is the picked one ----
+draw_oitem:
+    lda oitem_lo,x
+    sta txtlo
+    lda oitem_hi,x
+    sta txthi
+    lda oitem_row,x
+    sta prow
+    lda #9
+    sta pcol
+    lda oitem_len,x
+    sta plen
+    lda #WHITE
+    cpx optsel
+    bne do_store
+    lda #YELLOW
+do_store:
+    sta pcolor
+    jmp print_text
+
+; ---- print the on/off value: X = 0/1, A = screen row ----
+put_oval:
+    sta prow
+    lda ovtx_lo,x
+    sta txtlo
+    lda ovtx_hi,x
+    sta txthi
+    lda ovcol,x
+    sta pcolor
+    lda #24
+    sta pcol
+    lda #3
+    sta plen
+    jmp print_text
+
+; ---- option tables ----
+oitem_lo:  !byte <txt_ogun, <txt_ocool, <txt_oback
+oitem_hi:  !byte >txt_ogun, >txt_ocool, >txt_oback
+oitem_len: !byte 10, 13, 4
+oitem_row: !byte 10, 13, 16
+ocur_lo:                 ; cursor cells: column 7 of those rows
+    !byte <(SCREEN+10*40+7), <(SCREEN+13*40+7), <(SCREEN+16*40+7)
+ocur_hi:
+    !byte >(SCREEN+10*40+7), >(SCREEN+13*40+7), >(SCREEN+16*40+7)
+ovtx_lo:   !byte <txt_off, <txt_on
+ovtx_hi:   !byte >txt_off, >txt_on
+ovcol:     !byte LGREY, LGREEN
+
+; ---- option texts ----
+txt_ogun:  !scr "runner gun"
+txt_ocool: !scr "spin cooldown"
+txt_oback: !scr "back"
+txt_on:    !scr "on "
+txt_off:   !scr "off"
+txt_oh1:   !scr "gun: p1 fire shoots a bullet"
+txt_oh1e:
+txt_oh2:   !scr "cooldown: spins need a recharge"
+txt_oh2e:
+
+; ---- the settings themselves (session-wide) ----
+!ifdef FORCEOPTS {       ; test builds start with both turned on
+opt_shoot: !byte 1
+opt_cool:  !byte 1
+} else {
+opt_shoot: !byte 0       ; 0 = classic game, 1 = the runner shoots
+opt_cool:  !byte 0       ; 1 = spins need a recharge
+}
+optsel:    !byte 0       ; picked line: 0-2