574 lines
7.5 KiB
ArmAsm
574 lines
7.5 KiB
ArmAsm
;
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; handle battles
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;
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;================================
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; do battle
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;================================
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do_battle:
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lda #34
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sta HERO_X
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lda #20
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sta HERO_Y
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lda #0
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sta HERO_STATE
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sta MENU_STATE
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sta MENU_POSITION
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lda #3
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sta HERO_LIMIT
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lda #20
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sta BATTLE_COUNT
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;========================
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; rotate intro
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jsr rotate_intro
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;========================
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; zoom to battlefield
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; jsr zoom_battlefield
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;=============================
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; Init Enemy
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jsr init_enemy
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;==========================
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; Draw background
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;==========================
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; Draw sky
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ldx #0 ; blue from 0 .. 10
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battle_sky_loop:
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lda gr_offsets,X
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sta GBASL
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lda gr_offsets+1,X
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clc
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adc #$8 ; store to $C00
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sta GBASH
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lda #$66 ; COLOR_MEDIUMBLUE
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ldy #0
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battle_sky_inner:
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sta (GBASL),Y
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iny
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cpy #40
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bne battle_sky_inner
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inx
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inx
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cpx #10
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bne battle_sky_loop
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; green from 10 .. 40
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battle_ground_loop:
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lda gr_offsets,X
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sta GBASL
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lda gr_offsets+1,X
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clc
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adc #$8 ; store to $C00
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sta GBASH
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lda #$CC ; COLOR_LIGHTGREEN
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; FIXME: should be GROUNDCOLOR
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ldy #0
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battle_ground_inner:
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sta (GBASL),Y
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iny
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cpy #40
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bne battle_ground_inner
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inx
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inx
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cpx #40
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bne battle_ground_loop
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; Draw some background images for variety?
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; update bottom of screen
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jsr draw_battle_bottom
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;========================================
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; main battle loop
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;========================================
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main_battle_loop:
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;============================
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; copy background into place
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jsr gr_copy_to_current
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;========================================
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; draw our hero
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lda HERO_HP
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beq battle_draw_hero_down
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lda HERO_STATE
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and #HERO_STATE_RUNNING
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bne battle_draw_hero_running
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jmp battle_draw_normal_hero
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battle_draw_hero_down:
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jsr draw_hero_down
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jmp battle_done_draw_hero
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battle_draw_hero_running:
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; grsim_put_sprite(tfv_stand_right,ax,20);
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; grsim_put_sprite(tfv_walk_right,ax,20);
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lda HERO_X
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sta XPOS
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lda #20
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sta YPOS
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lda BATTLE_COUNT
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and #$8
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beq battle_draw_running_walk
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battle_draw_running_stand:
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lda #<tfv_stand_right_sprite
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sta INL
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lda #>tfv_stand_right_sprite
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sta INH
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jsr put_sprite_crop
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jmp battle_done_draw_hero
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battle_draw_running_walk:
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lda #<tfv_walk_right_sprite
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sta INL
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lda #>tfv_walk_right_sprite
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sta INH
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jsr put_sprite_crop
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jmp battle_done_draw_hero
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battle_draw_normal_hero:
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; grsim_put_sprite(tfv_stand_left,ax,20);
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lda #20
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sta HERO_Y
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jsr draw_hero_and_sword
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battle_done_draw_hero:
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;===========================
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; draw enemy
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battle_draw_enemy:
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; grsim_put_sprite(enemies[enemy_type].sprite,enemy_x,20);
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lda ENEMY_X
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sta XPOS
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lda #20
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sta YPOS
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jsr draw_enemy
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battle_done_draw_enemy:
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;=======================================
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; draw bottom status
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jsr draw_battle_bottom
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;=======================================
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; page_flip
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jsr page_flip
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;=======================================
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; handle if dead
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lda HERO_HP
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bne done_battle_handle_dead
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; pause for 1.5s
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ldx #15
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jsr long_wait
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jsr battle_game_over
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done_battle_handle_dead:
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;=======================
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; handle keypresses
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jsr get_keypress
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sta LAST_KEY
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cmp #'Q'
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beq done_battle
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;========================================
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; delay for framerate
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; lda #10
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; jsr WAIT
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;========================
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; handle enemy attacks
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lda ENEMY_COUNT
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bne battle_no_enemy_attack
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battle_start_enemy_attack:
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; attack and decrement HP
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jsr enemy_attack
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; update limit count
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; max out at 4
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lda HERO_LIMIT
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cmp #4
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beq battle_no_inc_limit
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inc HERO_LIMIT
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battle_no_inc_limit:
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; reset enemy time. FIXME: variable?
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lda #50
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sta ENEMY_COUNT
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battle_no_enemy_attack:
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dec ENEMY_COUNT
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;===============================
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; handle battle counter
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update_battle_counter:
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lda BATTLE_COUNT
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cmp #64
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bcc inc_battle_count ; blt
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; battle timer expired, take action
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; If running, escape
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; TODO: randomly fail at running?
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lda HERO_STATE
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and #HERO_STATE_RUNNING
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beq battle_open_menu
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; we bravely ran away
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jmp done_battle
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;======================
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; activate menu
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battle_open_menu:
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lda MENU_STATE
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cmp #MENU_NONE
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bne menu_activated
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; move to main menu
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lda #MENU_MAIN
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sta MENU_STATE
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jsr menu_ready_noise
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menu_activated:
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jsr battle_menu_keypress
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jmp done_battle_count
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inc_battle_count:
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inc BATTLE_COUNT
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done_battle_count:
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;========================
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; check enemy defeated
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lda ENEMY_HP
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bne end_battle_loop
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jsr victory_dance
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jmp done_battle
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end_battle_loop:
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jmp main_battle_loop
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done_battle:
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jsr clear_bottoms
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rts
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battle_game_over:
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rts
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;****** ** **** **** ** ** ****** **** ****** ****** ******
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;** ** **** ** ** ** ** ** ** ** ** ** ** **
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;** ** ** **** **** ****** **** ****** ** ****** ******
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;** ** ** ** ** ** ** ** ** ** ** ** **
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;****** ****** ****** **** ** **** ****** ** ****** **
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;===========================
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; gr put num
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;===========================
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; damage in DAMAGE_VAL (BCD)
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; location in XPOS,YPOS
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gr_put_num:
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; digit=number/100;
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; if ((digit) && (digit<10)) {
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; grsim_put_sprite(numbers[digit],xt,yy);
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; xt+=4;
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; }
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; hundreds=digit;
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; left=number%100;
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gr_put_num_tens:
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; print tens digit
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lda DAMAGE_VAL
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lsr
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lsr
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lsr
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lsr
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; leading zero suppression
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beq gr_put_num_ones
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asl
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tay
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lda number_sprites,Y
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sta INL
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lda number_sprites+1,Y
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sta INH
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jsr put_sprite_crop
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; point to next
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lda XPOS
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clc
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adc #4
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sta XPOS
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gr_put_num_ones:
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; print tens digit
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lda DAMAGE_VAL
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and #$f
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asl
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tay
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lda number_sprites,Y
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sta INL
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lda number_sprites+1,Y
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sta INH
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jsr put_sprite_crop
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rts
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;=========================
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; attack
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;=========================
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attack:
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lda #34
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sta HERO_X
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lda #$10
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sta DAMAGE_VAL
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attack_loop:
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; copy over background
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jsr gr_copy_to_current
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; draw hero
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lda #20
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sta YPOS
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lda HERO_X
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sta XPOS
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lsr
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bcc attack_draw_walk
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attack_draw_stand:
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lda #<tfv_stand_left_sprite
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sta INL
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lda #>tfv_stand_left_sprite
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jmp attack_actually_draw
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attack_draw_walk:
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lda #<tfv_walk_left_sprite
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sta INL
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lda #>tfv_walk_left_sprite
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attack_actually_draw:
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sta INH
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jsr put_sprite_crop
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;=========================
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; draw sword
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lda HERO_X
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sec
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sbc #5
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sta XPOS
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; ypos already 20?
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lda #<tfv_led_sword_sprite
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sta INL
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lda #>tfv_led_sword_sprite
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sta INH
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jsr put_sprite_crop
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;=========================
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; draw enemy
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lda ENEMY_X
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sta XPOS
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; ypos already 20?
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jsr draw_enemy
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;===========================
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; draw battle bottom
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jsr draw_battle_bottom
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;===========================
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; page flip
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jsr page_flip
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dec HERO_X
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lda HERO_X
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cmp #10 ; repeat until 10
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bne attack_loop
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;======================
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; attack done
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;===================
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; damage the enemy
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jsr damage_enemy
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; display damage
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lda #2
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sta XPOS
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lda #10
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sta YPOS
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jsr gr_put_num
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;===================
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; page flip
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jsr page_flip
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; delay
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lda #255
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jsr WAIT
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; restore X value
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lda #34
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sta HERO_X
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rts
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victory_string:
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.byte 13,21,"EXPERIENCE +2",0
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.byte 16,22,"MONEY +1",0
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;====================================
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; victory dance
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;====================================
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victory_dance:
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lda #34
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sta HERO_X
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lda #20
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sta HERO_Y
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; update XP and money
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inc HERO_XP
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inc HERO_XP
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inc HERO_MONEY
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ldx #25
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stx ANIMATE_LOOP
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victory_dance_loop:
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jsr gr_copy_to_current
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jsr clear_bottom
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lda #<victory_string
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sta OUTL
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lda #>victory_string
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sta OUTH
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jsr move_and_print
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jsr move_and_print
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txa
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and #1
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beq victory_wave
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victory_stand:
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jsr draw_hero_and_sword
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jmp victory_draw_done
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victory_wave:
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jsr draw_hero_victory
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victory_draw_done:
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jsr page_flip
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; delay
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lda #255
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jsr WAIT
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dec ANIMATE_LOOP
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bne victory_dance_loop
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rts
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