dos33fsprogs/games/peasant/peasant4.s
Vince Weaver 73b38a02e5 peasant: update the random code
old random generator not very random.  The new one is, makes
the cliff climb impossibly hard
2024-10-10 13:22:45 -04:00

564 lines
8.8 KiB
ArmAsm

; Peasant's Quest
; Peasantry Part 4 (bottom line of map)
; ned cottage, wavy tree, kerrek 2, lady cottage, burninated tree
; by Vince `deater` Weaver vince@deater.net
; with apologies to everyone
.include "hardware.inc"
.include "zp.inc"
.include "qload.inc"
.include "./inventory/inventory.inc"
.include "parse_input.inc"
LOCATION_BASE = LOCATION_OUTSIDE_NN ; index starts here (15)
peasantry4:
lda #0
sta LEVEL_OVER
sta FRAME
jsr hgr_make_tables ; necessary?
; jsr hgr2 ; necessary?
; decompress dialog to $D000
lda #<peasant4_text_zx02
sta zx_src_l+1
lda #>peasant4_text_zx02
sta zx_src_h+1
lda #$D0
jsr zx02_full_decomp
; update score
jsr update_score
;=============================
;=============================
; new screen location
;=============================
;=============================
new_location:
lda #0
sta LEVEL_OVER
;==========================
; load updated verb table
;==========================
; setup default verb table
jsr setup_default_verb_table
; we are PEASANT4 so locations 15...19 map to 0...4
lda MAP_LOCATION
sec
sbc #LOCATION_BASE
tax
lda verb_tables_low,X
sta INL
lda verb_tables_hi,X
sta INH
jsr load_custom_verb_table
;=========================
; load priority to $400
lda MAP_LOCATION
sec
sbc #LOCATION_BASE
tax
lda map_priority_low,X
sta zx_src_l+1
lda map_priority_hi,X
sta zx_src_h+1
lda #$20
jsr zx02_full_decomp
jsr gr_copy_to_page1
;=====================
; load bg
; we are PEASANT1 so locations 15...19 map to 0...4, no change
lda MAP_LOCATION
sec
sbc #LOCATION_BASE
tax
lda map_backgrounds_low,X
sta zx_src_l+1
lda map_backgrounds_hi,X
sta zx_src_h+1
lda #$20
jsr zx02_full_decomp
jsr hgr_copy
;====================
; update ned cottage if necessary
lda MAP_LOCATION
cmp #LOCATION_OUTSIDE_NN
bne not_necessary_cottage
lda GAME_STATE_2
and #COTTAGE_ROCK_MOVED
beq not_necessary_cottage
; 161,117
lda #23
sta CURSOR_X
lda #117
sta CURSOR_Y
lda #<rock_moved_sprite
sta INL
lda #>rock_moved_sprite
sta INH
jsr hgr_draw_sprite
not_necessary_cottage:
; put peasant text
lda #<peasant_text
sta OUTL
lda #>peasant_text
sta OUTH
jsr hgr_put_string
;==============
; put score
jsr print_score
;====================
; handle kerrek
;====================
; clear out state
lda #0
sta KERREK_STATE
lda MAP_LOCATION
cmp #LOCATION_KERREK_2
bne not_kerrek
jsr kerrek_setup
not_kerrek:
;====================
; save background
; lda PEASANT_X
; sta CURSOR_X
; lda PEASANT_Y
; sta CURSOR_Y
;=======================
; draw initial peasant
; jsr save_bg_1x28
; jsr draw_peasant
;======================
; check if in haystack
jsr check_haystack_exit
;======================
; init ned
; randomly waits 126-64 frames
jsr random8
and #$3f
; lda #64
sta NED_STATUS
;===============================
;===============================
;===============================
; main loop
;===============================
;===============================
;===============================
game_loop:
;===================
; move peasant
jsr move_peasant
;=====================
; always draw peasant
jsr draw_peasant
;====================
; increment frame
inc FRAME
;=====================
; check keyboard
jsr check_keyboard
;==========================
; check if kerrek collision
;==========================
jsr kerrek_draw
jsr kerrek_move_and_check_collision
;==========================
; draw ned if necessary
;==========================
lda MAP_LOCATION
cmp #LOCATION_WAVY_TREE
bne not_at_wavy_tree
jsr handle_ned
not_at_wavy_tree:
;==========================================
; check if lighting on fire at crooked tree
;==========================================
lda MAP_LOCATION
cmp #LOCATION_BURN_TREES
bne not_burn_trees
; see if already on fire
lda GAME_STATE_2
and #ON_FIRE
bne not_burn_trees
; see if have grease on head
lda GAME_STATE_2
and #GREASE_ON_HEAD
beq not_burn_trees
; check if X in range
lda PEASANT_X
cmp #$A ; blt
bcc not_burn_trees
cmp #$D
bcs not_burn_trees ; bge
; check if Y in range
lda PEASANT_Y
cmp #$85
bcs not_burn_trees ; bge
cmp #$70
bcc not_burn_trees ; blt
; finally set on fire
lda GAME_STATE_2
ora #ON_FIRE
sta GAME_STATE_2
; increment score
lda #$10 ; bcd
jsr score_points
ldx #<crooked_catch_fire_message
ldy #>crooked_catch_fire_message
jsr partial_message_step
not_burn_trees:
;===============================
; check if can enter ned cottage
;===============================
lda MAP_LOCATION
cmp #LOCATION_OUTSIDE_NN
bne not_ned_cottage
; OK are are at the cottage, is the door open?
lda INVENTORY_1_GONE
and #INV1_BABY
beq not_ned_cottage
; at cottage, door open, check our co-ords
lda PEASANT_Y ; #$68
cmp #$64
bcc not_ned_cottage
cmp #$70
bcs not_ned_cottage
lda PEASANT_X ; 15 - 17
cmp #15
bcc not_ned_cottage
cmp #18
bcs not_ned_cottage
; we did it, we're entering Ned's cottage
lda #LOCATION_INSIDE_NN
jsr update_map_location
lda #11
sta PEASANT_X
lda #$90
sta PEASANT_Y
lda #PEASANT_DIR_UP
sta PEASANT_DIR
lda #0
sta PEASANT_XADD
sta PEASANT_YADD
not_ned_cottage:
lda LEVEL_OVER
bmi oops_new_location
bne level_over
; play music sting if needed
lda kerrek_play_sting
beq no_sting
jsr kerrek_warning_music
dec kerrek_play_sting
no_sting:
; delay
lda #200
jsr wait
jmp game_loop
oops_new_location:
jmp new_location
;========================
; exit level
;========================
level_over:
; note: check for load from savegame if change state
rts
;======================
; handle ned
;======================
handle_ned:
;====================
; update ned status
; if 0 or 128, do nothing
lda NED_STATUS
beq leave_ned_alone
cmp #128
beq leave_ned_alone
inc NED_STATUS
leave_ned_alone:
lda NED_STATUS ; check status
beq ned_erase_bg ; special case, erase if just hit 0
cmp #125
bcc no_draw_ned ; blt, don't draw
cmp #128 ; don't erase if fully out
beq no_draw_ned
; erase by copying from background
ned_erase_bg:
lda #81
sta SAVED_Y1
lda #114
sta SAVED_Y2
lda #25
ldx #30
jsr hgr_partial_restore
; 125,255 draw ned1 sprite
; 126,254 draw ned2 sprite
; 127 draw ned3 sprite
lda NED_STATUS
cmp #127
beq draw_ned_out
cmp #125
beq draw_ned_hands
cmp #255
beq draw_ned_hands
cmp #126
beq draw_ned_half
cmp #254
beq draw_ned_half
bne no_draw_ned ; not out so don't draw
draw_ned_hands:
lda #28
sta CURSOR_X
lda #96
sta CURSOR_Y
lda #<ned1_sprite
sta INL
lda #>ned1_sprite
jmp draw_ned_common
draw_ned_half:
lda #28
sta CURSOR_X
lda #81
sta CURSOR_Y
lda #<ned2_sprite
sta INL
lda #>ned2_sprite
jmp draw_ned_common
draw_ned_out:
lda #25
sta CURSOR_X
lda #88
sta CURSOR_Y
lda #<ned3_sprite
sta INL
lda #>ned3_sprite
draw_ned_common:
sta INH
jsr hgr_draw_sprite
no_draw_ned:
rts
.include "peasant_common.s"
.include "move_peasant.s"
.include "draw_peasant.s"
.include "gr_copy.s"
.include "hgr_copy.s"
.include "new_map_location.s"
.include "keyboard.s"
.include "wait.s"
.include "wait_a_bit.s"
.include "graphics_peasantry/graphics_peasant4.inc"
.include "graphics_peasantry/priority_peasant4.inc"
map_backgrounds_low:
.byte <empty_hut_zx02 ; 15 -- empty hut
.byte <ned_zx02 ; 16 -- ned
.byte <bottom_prints_zx02 ; 17 -- bottom footprints
.byte <lady_cottage_zx02 ; 18 -- cottage lady
.byte <crooked_tree_zx02 ; 19 -- crooked tree
map_backgrounds_hi:
.byte >empty_hut_zx02 ; 15 -- empty hut
.byte >ned_zx02 ; 16 -- ned
.byte >bottom_prints_zx02 ; 17 -- bottom footprints
.byte >lady_cottage_zx02 ; 18 -- cottage lady
.byte >crooked_tree_zx02 ; 19 -- crooked tree
map_priority_low:
.byte <empty_hut_priority_zx02 ; 15 -- empty hut
.byte <ned_priority_zx02 ; 16 -- ned
.byte <bottom_prints_priority_zx02 ; 17 -- bottom footprints
.byte <lady_cottage_priority_zx02 ; 18 -- cottage lady
.byte <crooked_tree_priority_zx02 ; 19 -- crooked tree
map_priority_hi:
.byte >empty_hut_priority_zx02 ; 15 -- empty hut
.byte >ned_priority_zx02 ; 16 -- ned
.byte >bottom_prints_priority_zx02 ; 17 -- bottom footprints
.byte >lady_cottage_priority_zx02 ; 18 -- cottage lady
.byte >crooked_tree_priority_zx02 ; 19 -- crooked tree
verb_tables_low:
.byte <ned_cottage_verb_table ; 15 -- empty hut
.byte <ned_verb_table ; 16 -- ned
.byte <kerrek_verb_table ; 17 -- bottom footprints
.byte <lady_cottage_verb_table ; 18 -- cottage lady
.byte <crooked_tree_verb_table ; 19 -- crooked tree
verb_tables_hi:
.byte >ned_cottage_verb_table ; 15 -- empty hut
.byte >ned_verb_table ; 16 -- ned
.byte >kerrek_verb_table ; 17 -- bottom footprints
.byte >lady_cottage_verb_table ; 18 -- cottage lady
.byte >crooked_tree_verb_table ; 19 -- crooked tree
peasant4_text_zx02:
.incbin "text/DIALOG_PEASANT4.ZX02"
.include "peasant4_actions.s"
.include "sprites/ned_sprites.inc"
.include "hgr_sprite.s"