529 lines
7.1 KiB
ArmAsm
529 lines
7.1 KiB
ArmAsm
;====================================
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; Routines for the generator puzzles
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;====================================
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leave_tower1:
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lda #GEN_TOWER1_TOP
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sta LOCATION
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lda #DIRECTION_E
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sta DIRECTION
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jsr change_location
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rts
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back_to_mist:
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lda #MIST_TREE_CORRIDOR_4
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sta LOCATION
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lda #DIRECTION_E
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sta DIRECTION
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lda #LOAD_MIST
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sta WHICH_LOAD
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lda #$ff
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sta LEVEL_OVER
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rts
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draw_circuit_breaker:
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lda ANIMATE_FRAME
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beq done_draw_circuit_breaker
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lda #17
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sta XPOS
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lda #12
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sta YPOS
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lda #<breaker_down_sprite
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sta INL
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lda #>breaker_down_sprite
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sta INH
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jsr put_sprite_crop
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lda FRAMEL
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and #$1f
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bne done_draw_circuit_breaker
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dec ANIMATE_FRAME
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done_draw_circuit_breaker:
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rts
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breaker_down_sprite:
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.byte 3,2
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.byte $90,$0f,$90
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.byte $69,$65,$69
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;=======================
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; flip circuit breaker
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; if room==MIST_TOWER2_TOP, and with #$fe
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; if room==GEN_TOWER1_TOP, and with #$fd
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circuit_breaker:
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jsr click_speaker ; click speaker
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lda #2
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sta ANIMATE_FRAME
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lda LOCATION
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cmp #MIST_TOWER2_TOP
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bne other_circuit_breaker
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lda BREAKER_TRIPPED
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and #$fe
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jmp done_circuit_breaker
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other_circuit_breaker:
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lda BREAKER_TRIPPED
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and #$fd
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done_circuit_breaker:
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sta BREAKER_TRIPPED
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bne done_turn_on_breaker
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turn_on_breaker:
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lda GENERATOR_VOLTS
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cmp #$60
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bcs done_turn_on_breaker
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sta ROCKET_VOLTS
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sta ROCKET_VOLTS_DISP
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done_turn_on_breaker:
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rts
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;======================
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; open the generator_door
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open_gen_door:
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lda gen_door_status
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eor #$1
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sta gen_door_status
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beq gen_close_door
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gen_open_door:
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ldy #LOCATION_NORTH_EXIT
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lda #GEN_GENERATOR_ROOM
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sta location3,Y ; GEN_GENERATOR_DOOR
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ldy #LOCATION_NORTH_EXIT_DIR
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lda #(DIRECTION_N | DIRECTION_SPLIT | DIRECTION_ONLY_POINT)
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sta location3,Y ; GEN_GENERATOR_DOOR
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ldy #LOCATION_NORTH_BG
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lda #<gen_door_open_n_lzsa
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sta location3,Y ; GEN_GENERATOR_DOOR
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lda #>gen_door_open_n_lzsa
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sta location3+1,Y ; GEN_GENERATOR_DOOR
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jmp change_location
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gen_close_door:
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; disable exit
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ldy #LOCATION_NORTH_EXIT
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lda #$ff
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sta location3,Y ; GEN_GENERATOR_DOOR
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ldy #LOCATION_NORTH_EXIT_DIR
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lda #$ff
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sta location3,Y ; GEN_GENERATOR_DOOR
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; change background
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ldy #LOCATION_NORTH_BG
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lda #<gen_door_closed_n_lzsa
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sta location3,Y ; GEN_GENERATOR_DOOR
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lda #>gen_door_closed_n_lzsa
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sta location3+1,Y ; GEN_GENERATOR_DOOR
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jmp change_location
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gen_door_status:
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.byte $00 ; closed
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button_lookup:
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.byte $10,$8,$4,$2,$1
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button_values_top:
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.byte $01,$02,$22,$19,$09 ; BCD
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button_values_bottom:
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.byte $10,$07,$08,$16,$05 ; BCD
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needle_strings:
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.byte '\'|$80,' '|$80,' '|$80,' '|$80
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.byte ' '|$80,':'|$80,' '|$80,' '|$80
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.byte ' '|$80,' '|$80,':'|$80,' '|$80
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.byte ' '|$80,' '|$80,' '|$80,'/'|$80
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;============================
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; handle button presses
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;============================
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generator_button_press:
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lda DIRECTION
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and #$f
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cmp #DIRECTION_N
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beq really_the_panel
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; otherwise, the sign
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lda CURSOR_X
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cmp #27
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bcs draw_sign
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; not draw sign, leave room
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lda #GEN_GENERATOR_DOOR
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sta LOCATION
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jmp change_location
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draw_sign:
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lda #GEN_SIGN
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sta LOCATION
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lda #(DIRECTION_S|DIRECTION_SPLIT)
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sta DIRECTION
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jmp change_location
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really_the_panel:
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lda CURSOR_Y
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cmp #38
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bcs button_bottom_row ; bge
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button_top_row:
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lda CURSOR_X
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sec
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sbc #24
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lsr
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bmi done_press
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cmp #5
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bcs done_press ; bge
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tax
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lda SWITCH_TOP_ROW
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eor button_lookup,X ; toggle switch
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sta SWITCH_TOP_ROW
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jmp done_press
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button_bottom_row:
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lda CURSOR_X
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sec
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sbc #25
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lsr
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bmi done_press
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cmp #5
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bcs done_press ; bge
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tax
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lda SWITCH_BOTTOM_ROW
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eor button_lookup,X ; toggle switch
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sta SWITCH_BOTTOM_ROW
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no_bottom_press:
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done_press:
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calculate_button_totals:
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lda #0
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sta ROCKET_VOLTS
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sta GENERATOR_VOLTS
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tax
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calc_buttons_loop:
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; top button
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lda SWITCH_TOP_ROW
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and button_lookup,X
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beq ctop_button_off
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ctop_button_on:
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sed
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clc
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lda GENERATOR_VOLTS
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adc button_values_top,X
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sta GENERATOR_VOLTS
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cld
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ctop_button_off:
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lda SWITCH_BOTTOM_ROW
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and button_lookup,X
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beq cbottom_button_off
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cbottom_button_on:
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sed
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clc
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lda GENERATOR_VOLTS
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adc button_values_bottom,X
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sta GENERATOR_VOLTS
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cld
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cbottom_button_off:
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inx
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cpx #5
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bne calc_buttons_loop
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; calculate rocket volts
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lda BREAKER_TRIPPED
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bne done_rocket_volts
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lda GENERATOR_VOLTS
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cmp #$60
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bcs oops_flipped ; bge
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sta ROCKET_VOLTS
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jmp done_rocket_volts
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oops_flipped:
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lda #$3
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sta BREAKER_TRIPPED
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done_rocket_volts:
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rts
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;===========================
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; draw the voltage displays
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;===========================
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generator_update_volts:
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; gradually adjust generator voltage
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sed
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lda GENERATOR_VOLTS_DISP
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cmp GENERATOR_VOLTS
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beq no_adjust_gen_volts
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bcs gen_volts_dec
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clc
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adc #1
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jmp done_adjust_gen_volts
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gen_volts_dec:
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sec
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sbc #1
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done_adjust_gen_volts:
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sta GENERATOR_VOLTS_DISP
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no_adjust_gen_volts:
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; gradually adjust rocket voltage
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lda ROCKET_VOLTS_DISP
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cmp ROCKET_VOLTS
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beq no_adjust_rocket_volts
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bcs rocket_volts_dec
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clc
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adc #1
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jmp done_adjust_rocket_volts
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rocket_volts_dec:
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sec
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sbc #1
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done_adjust_rocket_volts:
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sta ROCKET_VOLTS_DISP
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no_adjust_rocket_volts:
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cld
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lda DRAW_PAGE
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clc
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adc #$6
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sta gen_volt_ones_smc+2
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sta gen_volt_tens_smc+2
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sta rocket_volt_ones_smc+2
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sta rocket_volt_tens_smc+2
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sta gen_put_needle_smc+2
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sta rocket_put_needle_smc+2
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lda GENERATOR_VOLTS_DISP
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and #$f
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clc
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adc #$b0
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gen_volt_ones_smc:
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sta $6d0+14 ; 14,21
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lda GENERATOR_VOLTS_DISP
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lsr
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lsr
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lsr
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lsr
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and #$f
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clc
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adc #$b0
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gen_volt_tens_smc:
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sta $6d0+13 ; 13,21
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; draw gen needle
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lda GENERATOR_VOLTS_DISP
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ldx #0
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cmp #$25
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bcc gen_put_needle
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inx
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cmp #$50
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bcc gen_put_needle
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inx
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cmp #$75
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bcc gen_put_needle
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inx
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gen_put_needle:
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txa
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asl
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asl
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tax
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ldy #0
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gen_put_needle_loop:
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lda needle_strings,X
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gen_put_needle_smc:
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sta $650+12,Y
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iny
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inx
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cpy #4
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bne gen_put_needle_loop
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lda ROCKET_VOLTS_DISP
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and #$f
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clc
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adc #$b0
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rocket_volt_ones_smc:
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sta $6d0+21 ; 21,21
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lda ROCKET_VOLTS_DISP
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lsr
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lsr
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lsr
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lsr
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and #$f
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clc
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adc #$b0
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rocket_volt_tens_smc:
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sta $6d0+20 ; 20,21
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; draw rocket needle
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lda ROCKET_VOLTS_DISP
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ldx #0
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cmp #$25
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bcc rocket_put_needle
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inx
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cmp #$50
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bcc rocket_put_needle
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inx
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cmp #$75
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bcc rocket_put_needle
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inx
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rocket_put_needle:
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txa
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asl
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asl
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tax
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ldy #0
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rocket_put_needle_loop:
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lda needle_strings,X
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rocket_put_needle_smc:
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sta $650+19,Y
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iny
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inx
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cpy #4
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bne rocket_put_needle_loop
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rts
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;=========================
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; draw the buttons
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;=========================
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generator_draw_buttons:
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ldx #0
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clc
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lda DRAW_PAGE
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adc #$4
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sta top_button_draw_smc+2
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adc #$1
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sta bottom_button_draw_smc+2
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lda #$d0+25
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sta top_button_draw_smc+1
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adc #$1
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sta bottom_button_draw_smc+1
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draw_buttons_loop:
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; top button
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lda SWITCH_TOP_ROW
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and button_lookup,X
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beq top_button_off
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top_button_on:
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ldy #$95
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bne top_button_draw_smc
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top_button_off:
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ldy #$35
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top_button_draw_smc:
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sty $4d0+25
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inc top_button_draw_smc+1
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inc top_button_draw_smc+1
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; bottom button
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lda SWITCH_BOTTOM_ROW
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and button_lookup,X
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beq bottom_button_off
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bottom_button_on:
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ldy #$19
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bne bottom_button_draw_smc
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bottom_button_off:
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ldy #$13
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bottom_button_draw_smc:
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sty $5d0+26
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inc bottom_button_draw_smc+1
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inc bottom_button_draw_smc+1
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inx
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cpx #5
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bne draw_buttons_loop
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rts
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