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ootw: initial alien AI

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just turns to look at you if you're on the same level
This commit is contained in:
Vince Weaver 2019-08-22 11:28:18 -04:00
parent 98785e98ca
commit 7d6e13343c
3 changed files with 36 additions and 2 deletions
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33
ootw/alien.s
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@ -30,7 +30,7 @@ A_TURNING = 4
A_YELLING = 5
A_SHOOTING_UP = 6
A_DISINTEGRATING = 7
A_SHOOTING = 8
alien_gait:
alien0_gait: .byte 0
@ -56,7 +56,7 @@ alien_gun:
;
move_alien:
; FIXME: loop through all alieans
ldx #0
move_alien_loop:
@ -74,6 +74,10 @@ move_alien_loop:
beq move_alien_yelling
cmp #A_SHOOTING_UP
beq move_alien_yelling
cmp #A_STANDING
beq move_alien_standing
cmp #A_SHOOTING
beq move_alien_shooting
done_move_alien:
@ -135,8 +139,33 @@ alien_no_move_run:
move_alien_standing:
; turn to face physicist if on same level
lda PHYSICIST_Y
cmp alien_y,X
bne done_move_alien_standing
lda PHYSICIST_X
cmp alien_x,X
bcs alien_face_right
alien_face_left:
lda #0
beq alien_done_facing
alien_face_right:
lda #1
alien_done_facing:
sta alien_direction,X
done_move_alien_standing:
jmp done_move_alien
;======================
; shooting
move_alien_shooting:
jmp done_move_alien
astate_table_lo:

3
ootw/ootw_c2_jail.s
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@ -595,6 +595,9 @@ c2_done_draw_friend:
lda ALIEN_OUT
beq no_draw_alien
jsr move_alien
jsr draw_alien
no_draw_alien:

2
ootw/ootw_c4_city.s
View File

@ -658,6 +658,8 @@ after_draw_physicist:
lda ALIEN_OUT
beq no_draw_alien
jsr move_alien
jsr draw_alien
no_draw_alien: