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dos33fsprogs/tfv/tfv_worldmap.s
Vince Weaver 8139c2520c tfv: update to match more modern vmw games 
mostly using lzsa compression
2020-09-27 22:03:01 -04:00

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; In Town
; Puzzle Room
; Get through office
; Have to run away? What happens if die? No save game? Code?
; Construct the LED circuit
; Zaps through cloud
; Susie joins your party
; Final Battle
; Play music, lightning effects?
; TFV only hit for one damage, susie for 100
world_map:
;===================
; Clear screen/pages
;===================
jsr clear_screens
jsr set_gr_page0
;===============
; Init Variables
;===============
lda #$0
sta ODD
sta ON_BIRD
lda #$1
sta DIRECTION
sta REFRESH
lda #5
sta MAP_X
lda #15
sta TFV_X
lda #20
sta TFV_Y
;==================
; MAIN LOOP
;==================
worldmap_loop:
lda #$0
sta MOVED
lda TFV_X
sta NEWX
lda TFV_Y
sta NEWY
worldmap_keyboard:
jsr get_key ; get keypress
lda LASTKEY
worldmap_handle_q:
cmp #('Q') ; if quit, then return
bne worldmap_handle_up
rts
worldmap_handle_up:
cmp #('W')
bne worldmap_handle_down
dec NEWY
dec NEWY
inc MOVED
worldmap_handle_down:
cmp #('S')
bne worldmap_handle_left
inc NEWY
inc NEWY
inc MOVED
worldmap_handle_left:
cmp #('A')
bne worldmap_handle_right
lda DIRECTION ; 0=left, 1=right
beq go_left ; if (0) already left, keep going
left_turn:
lda #0 ; change direction to left
sta DIRECTION
sta ODD ; stand (not walk) if changing
beq worldmap_handle_right ; skip ahead
go_left:
dec NEWX ; decrement x
inc MOVED ; we moved
worldmap_handle_right:
cmp #('D')
bne worldmap_handle_enter
lda DIRECTION ; 0=left, 1=right
bne go_right ; if (1) already right, keep going
right_turn:
lda #1 ; change direction to right
sta DIRECTION
lda #0 ; change to standing
sta ODD
beq worldmap_handle_enter ; skip ahead
go_right:
inc NEWX ; increment X
inc MOVED
worldmap_handle_enter:
cmp #13
bne worldmap_handle_help
; jsr city_map
inc REFRESH
worldmap_handle_help:
cmp #('H')
bne worldmap_handle_battle
jsr print_help
worldmap_handle_battle:
cmp #('B')
bne worldmap_handle_info
; jsr do_battle
inc REFRESH
worldmap_handle_info:
cmp #('I')
bne worldmap_handle_map
; jsr print_info
inc REFRESH
worldmap_handle_map:
cmp #('M')
bne worldmap_done_keyboard
jsr show_map
inc REFRESH
worldmap_done_keyboard:
;===========================
; Handle Movement
;===========================
lda MOVED
beq worldmap_refresh_screen
inc ODD
inc STEPS
; Handle Collision Detection
lda NEWX
sta TFV_X
lda NEWY
sta TFV_Y
check_high_x:
lda TFV_X
cmp #36
bmi check_low_x
; Off screen to right
lda #0
sta TFV_X
inc MAP_X
inc REFRESH
bne check_high_y
check_low_x:
lda TFV_X
bpl check_high_y
dec MAP_X
lda #35
sta TFV_X
inc REFRESH
check_high_y:
lda TFV_Y ; load Y value
cmp #28
bmi check_low_y ; if less than 28, check low Y
clc
lda #$4
sta TFV_Y
adc MAP_X
sta MAP_X
inc REFRESH
bne done_map_check
check_low_y:
lda TFV_Y
cmp #4
bpl done_map_check
lda #28
sta TFV_Y
dec MAP_X
dec MAP_X
dec MAP_X
dec MAP_X
inc REFRESH
done_map_check:
;============================
; Refresh screen if needed
;============================
worldmap_refresh_screen:
lda REFRESH
beq worldmap_copy_background
jsr load_map_bg
dec REFRESH
worldmap_copy_background:
;================
; Copy background
;================
jsr gr_copy_to_current
;=================================
; Handle background ground scatter
;=================================
; if (map_x==1) if (tfv_y>=22) grsim_put_sprite(snowy_tree,10,20);
lda MAP_X
cmp #1
bne back_not_snow
lda TFV_Y
cmp #22
bmi no_back_scatter
; snowy tree
lda #>snowy_tree
sta INH
lda #<snowy_tree
sta INL
lda #10
sta XPOS
lda #20
sta YPOS
bne back_scatter_sprite
back_not_snow:
; if (map_x==4) if (tfv_y>=16) grsim_put_sprite(pine_tree,25,16);
cmp #4
bne back_not_pine
lda TFV_Y
cmp #16
bmi no_back_scatter
; pine tree
lda #>pine_tree
sta INH
lda #<pine_tree
sta INL
lda #25
sta XPOS
lda #16
sta YPOS
bne back_scatter_sprite
back_not_pine:
; palm tree
; if (map_x==8) if (tfv_y>=22) grsim_put_sprite(palm_tree,10,20);
cmp #8
bne back_not_palm
lda #10
sta XPOS
bne back_palm
back_not_palm:
; palm tree 2
; if (map_x==12) if (tfv_y>=22) grsim_put_sprite(palm_tree,20,20);
cmp #12
bne back_not_palm2
lda #20
sta XPOS
back_palm:
lda TFV_Y
cmp #22
bmi no_back_scatter
lda #>palm_tree
sta INH
lda #<palm_tree
sta INL
lda #20
sta YPOS
bne back_scatter_sprite
back_not_palm2:
cmp #13
bne no_back_scatter
lda TFV_Y
cmp #16
bmi no_back_scatter
; cactus
; if (map_x==13) if (tfv_y>=16) grsim_put_sprite(cactus,25,16);
lda #>cactus
sta INH
lda #<cactus
sta INL
lda #25
sta XPOS
lda #16
sta YPOS
back_scatter_sprite:
jsr put_sprite
no_back_scatter:
;========================
; Draw background forest
;========================
lda MAP_X ; if ((map_x==7) || (map_x==11))
cmp #7
beq back_forest
cmp #11
bne back_no_forest
back_forest:
lda #COLOR_BOTH_DARKGREEN
sta COLOR
lda TFV_Y
clc
adc #6
back_forest_loop:
pha ; 10, ends at 23
lsr ; limit=22+(i/4);
lsr
clc
adc #22
sta V2
ldy #0
pla
pha
jsr hlin_double ; hlin y,V2 at A
; for(i=10;i<tfv_y+8;i+=2)
; hlin_double(ram[DRAW_PAGE],0,limit,i);
pla
clc
adc #$fe ; -2
cmp #8
bne back_forest_loop
back_no_forest:
;=============
; Draw TFV
;=============
clc
lda #1
bit ODD
bne standing
walking:
lda DIRECTION ; 0=left, 1=right
bne walking_right ; if(!0) walk right
walking_left:
lda #>tfv_walk_left
sta INH
lda #<tfv_walk_left
sta INL
bcc done_walking
walking_right:
lda #>tfv_walk_right
sta INH
lda #<tfv_walk_right
sta INL
bcc done_walking
standing:
lda DIRECTION
bne standing_right
standing_left:
lda #>tfv_stand_left
sta INH
lda #<tfv_stand_left
sta INL
bcc done_walking
standing_right:
lda #>tfv_stand_right
sta INH
lda #<tfv_stand_right
sta INL
done_walking:
lda TFV_X
sta XPOS
lda TFV_Y
sta YPOS
jsr put_sprite
; if (direction==-1) {
; if (odd) grsim_put_sprite(tfv_walk_left,tfv_x,tfv_y);
; else grsim_put_sprite(tfv_stand_left,tfv_x,tfv_y);
; }
; if (direction==1) {
; if (odd) grsim_put_sprite(tfv_walk_right,tfv_x,tfv_y);
; else grsim_put_sprite(tfv_stand_right,tfv_x,tfv_y);
; }
;=================================
; Handle foreground ground scatter
;=================================
;if (map_x==1) if (tfv_y<22) grsim_put_sprite(snowy_tree,10,22);
lda MAP_X
cmp #1
bne fore_not_snow
lda TFV_Y
cmp #22
bpl no_fore_scatter
; snowy tree
lda #>snowy_tree
sta INH
lda #<snowy_tree
sta INL
lda #10
sta XPOS
lda #20
sta YPOS
bne fore_scatter_sprite
fore_not_snow:
; if (map_x==4) if (tfv_y<15) grsim_put_sprite(pine_tree,25,15);
cmp #4
bne fore_not_pine
lda TFV_Y
cmp #16
bpl no_fore_scatter
; pine tree
lda #>pine_tree
sta INH
lda #<pine_tree
sta INL
lda #25
sta XPOS
lda #16
sta YPOS
bne fore_scatter_sprite
fore_not_pine:
; palm tree
; if (map_x==8) if (tfv_y<22) grsim_put_sprite(palm_tree,10,20);
cmp #8
bne fore_not_palm
lda #10
sta XPOS
bne fore_palm
fore_not_palm:
; palm tree 2
; if (map_x==12) if (tfv_y<22) grsim_put_sprite(palm_tree,20,20);
cmp #12
bne fore_not_palm2
lda #20
sta XPOS
fore_palm:
lda TFV_Y
cmp #22
bpl no_fore_scatter
lda #>palm_tree
sta INH
lda #<palm_tree
sta INL
lda #20
sta YPOS
bne fore_scatter_sprite
fore_not_palm2:
cmp #13
bne no_fore_scatter
lda TFV_Y
cmp #16
bpl no_fore_scatter
; cactus
; if (map_x==13) if (tfv_y<15) grsim_put_sprite(cactus,25,15);
lda #>cactus
sta INH
lda #<cactus
sta INL
lda #25
sta XPOS
lda #16
sta YPOS
fore_scatter_sprite:
jsr put_sprite
no_fore_scatter:
;========================
; Draw foreground forest
;========================
lda MAP_X ; if ((map_x==7) || (map_x==11))
cmp #7
beq fore_forest
cmp #11
bne fore_no_forest
fore_forest:
lda #COLOR_BOTH_DARKGREEN
sta COLOR
lda TFV_Y
clc
adc #8
fore_forest_loop:
cmp #36
beq done_forest_loop
pha
lsr ; limit=22+(i/4);
lsr
clc
adc #22
sta V2
ldy #0
pla
pha
jsr hlin_double ; hlin y,V2 at A
; for(i=tfv_y+8;i<36;i+=2) {
; hlin_double(ram[DRAW_PAGE],0,limit,i);
pla
clc
adc #2
bne fore_forest_loop
done_forest_loop:
;====================
; Draw tree trunks
;====================
lda #36
outer_treetrunk_loop:
pha
lda #COLOR_BOTH_BROWN
sta COLOR
lda #0 ; hlin_double(ram[DRAW_PAGE],0,0,36);
sta V2
ldy #0
pla
pha
jsr hlin_double ; hlin y,V2 at A
lda #0
treetrunk_loop:
pha
lda #COLOR_BOTH_GREY
sta COLOR
ldx #1
jsr hlin_double_continue
lda #COLOR_BOTH_BROWN
sta COLOR
ldx #1
jsr hlin_double_continue
pla
clc
adc #1
cmp #13
bne treetrunk_loop
pla
clc
adc #2
cmp #40
bne outer_treetrunk_loop
; color_equals(COLOR_BROWN);
; hlin_double(ram[DRAW_PAGE],0,1,37);
; for(i=0;i<13;i++) {
; color_equals(COLOR_GREY);
; hlin_double_continue(1);
; color_equals(COLOR_BROWN);
; hlin_double_continue(1);
; }
; }
fore_no_forest:
;=============================
; Draw lightning
;=============================
lda MAP_X
cmp #3
bne no_lightning
lda STEPS
and #$f
bne no_lightning
lda #>lightning
sta INH
lda #<lightning
sta INL
lda #25
sta XPOS
lda #4
sta YPOS
jsr put_sprite ; grsim_put_sprite(lightning,25,4);
;=============================
; Hurt hit points if in range?
;=============================
; if ((tfv_x>25) && (tfv_x<30) && (tfv_y<12)) {
; printf("HIT! %d %d\n\n",steps,hp);
; if (hp>11) {
; hp=10;
no_lightning:
jsr page_flip
;============
; Update Time
;============
; if (steps>=60) {
; steps=0;
; time_minutes++;
; if (time_minutes>=60) {
; time_hours++;
; time_minutes=0;
; }
; }
jmp worldmap_loop
; Map
;
; 0 1 2 3
;
; 0 BEACH ARCTIC ARCTIC BELAIR
; TREE MOUNATIN
;
; 1 BEACH LANDING GRASS FOREST
; PINETREE MOUNTAIN
;
; 2 BEACH GRASS GRASS FOREST
; PALMTREE MOUNTAIN
;
; 3 BEACH DESERT COLLEGE BEACH
; CACTUS PARK
;=============================================
;=============================================
; Load World Map background
;=============================================
;=============================================
load_map_bg:
; Set target for the background drawing
; Check for special cases
lda MAP_X
map_harfco:
cmp #3 ; if map_x==3, harfco
bne map_landing
lda #<(harfco_lzsa)
sta getsrc_smc+1
lda #>(harfco_lzsa)
sta getsrc_smc+2
lda #$c
jsr decompress_lzsa2_fast
rts
map_landing:
cmp #5 ; if map_x==5, landing site
bne map_collegep
lda #<(landing_lzsa)
sta getsrc_smc+1
lda #>(landing_lzsa)
sta getsrc_smc+2
lda #$c
jsr decompress_lzsa2_fast
rts
map_collegep:
cmp #14 ; if map_x==14, collegep
bne map_custom
lda #<(collegep_lzsa)
sta getsrc_smc+1
lda #>(collegep_lzsa)
sta getsrc_smc+2
lda #$c
jsr decompress_lzsa2_fast
rts
;============================
; draw parametric background
;============================
map_custom:
; Draw the Sky
lda DRAW_PAGE ; save the DRAW_PAGE value for later
pha
lda #$8 ; temporarily draw to 0xc00
sta DRAW_PAGE
lda #COLOR_BOTH_MEDIUMBLUE ; MEDIUMBLUE color
sta COLOR
lda #0
map_sky: ; draw line across screen
ldy #39 ; from y=0 to y=10
sty V2
ldy #0
pha
jsr hlin_double ; hlin y,V2 at A
pla
clc
adc #2
cmp #10
bne map_sky
;=================
; Set Ground Color
;=================
ldx #COLOR_BOTH_LIGHTGREEN ; default is grass color
lda MAP_X
cmp #4
bpl not_artic
ldx #COLOR_BOTH_WHITE ; snow white
not_artic:
cmp #13
bne not_desert
ldx #COLOR_BOTH_ORANGE ; desert orange
not_desert:
stx GROUND_COLOR
;===========================================
; sloped left beach, of left side of island
;===========================================
lda #3
and MAP_X
bne not_sloped_left
lda #10
sloped_left_loop:
pha
eor #$ff ; temp=4+(39-i)/8;
sec
adc #39
lsr
lsr
lsr
sec
adc #3
sta TEMP
sta V2
pla
pha
ldx #COLOR_BOTH_DARKBLUE
stx COLOR
ldy #0
jsr hlin_double
ldx #COLOR_BOTH_LIGHTBLUE
stx COLOR
ldx #2
jsr hlin_double_continue
ldx #COLOR_BOTH_YELLOW
stx COLOR
ldx #2
jsr hlin_double_continue
ldx GROUND_COLOR
stx COLOR
lda TEMP
eor #$ff
sec
adc #35
tax
jsr hlin_double_continue
pla
clc
adc #2
cmp #40
bne sloped_left_loop
beq done_base
not_sloped_left:
;=============================================
; sloped right beach, on right side of island
;=============================================
lda #3
and MAP_X
cmp #3
bne not_sloped_right
lda #10
sloped_right_loop:
pha
lsr ; temp=24+(A/4)
lsr ; A/4
clc
adc #24
sta TEMP
sta V2
pla
pha
ldx GROUND_COLOR
stx COLOR
ldy #0
jsr hlin_double
ldx #COLOR_BOTH_YELLOW
stx COLOR
ldx #2
jsr hlin_double_continue
ldx #COLOR_BOTH_LIGHTBLUE
stx COLOR
ldx #2
jsr hlin_double_continue
ldx #COLOR_BOTH_DARKBLUE
stx COLOR
lda TEMP
eor #$ff
sec
adc #35
tax
jsr hlin_double_continue
; color_equals(ground_color);
; hlin(PAGE2,0,temp,i);
; color_equals(COLOR_YELLOW);
; hlin_continue(2);
; color_equals(COLOR_LIGHTBLUE);
; hlin_continue(2);
; color_equals(COLOR_DARKBLUE);
; hlin_continue(36-temp);
pla
clc
adc #$2
cmp #40
bne sloped_right_loop
beq done_base
;==============================
; grassland
;==============================
not_sloped_right:
lda GROUND_COLOR
sta COLOR
lda #10
grassland_loop: ; draw line across screen
ldy #40 ; from y=0 to y=10
sty V2
ldy #0
pha
jsr hlin_double ; hlin y,V2 at A
pla
clc
adc #2
cmp #40
bne grassland_loop
done_base:
;==============================
; Draw North Shore
;==============================
draw_north_shore:
lda MAP_X
cmp #4
bpl draw_south_shore
ldx #COLOR_BOTH_DARKBLUE
stx COLOR
lda #39
sta V2
ldy #0
lda #10
jsr hlin_double
;==============================
; Draw South Shore
;==============================
draw_south_shore:
lda MAP_X
cmp #12
bmi draw_mountains
ldx #COLOR_BOTH_DARKBLUE
stx COLOR
lda #39
sta V2
ldy #0
lda #38
jsr hlin_double ; hlin 0,39 at 38
ldx #COLOR_BOTH_LIGHTBLUE
stx COLOR
lda #39
sta V2
lda #15
cmp MAP_X
bne lblue_15
lda #35
sta V2
lblue_15:
ldy #0
lda #12
cmp MAP_X
bne lblue_12
ldy #6
lblue_12:
lda #36
jsr hlin_double ; hlin 0,39 at 36
ldx #COLOR_BOTH_YELLOW
stx COLOR
lda #39
sta V2
lda #15
cmp MAP_X
bne yellow_15
lda #32
sta V2
yellow_15:
ldy #0
lda #12
cmp MAP_X
bne yellow_12
ldy #8
yellow_12:
lda #34
jsr hlin_double ; hlin 0,39 at 34
;===============================
; Draw Mountains
;===============================
draw_mountains:
lda MAP_X
and #3
cmp #2
bne done_drawing
lda #0
mountain_loop:
pha
lda #>mountain
sta INH
lda #<mountain
sta INL
pla
pha
and #1
sta XPOS
asl
asl
clc
adc #10
adc XPOS
sta XPOS
pla
pha
asl
asl
asl
clc
adc #2
sta YPOS
jsr put_sprite
pla
clc
adc #1
cmp #4
bne mountain_loop
done_drawing:
pla ; restore the draw page
sta DRAW_PAGE
rts
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