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-python/data/components/enemies.py at master · TobyfoxpurePython/-python · GitHub
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__author__
=
'justinarmstrong'
import
pygame
as
pg
from
..
import
setup
from
..
import
constants
as
c
class
Enemy
(
pg
.
sprite
.
Sprite
):
"""Base class for all enemies (Goombas, Koopas, etc.)"""
def
__init__
(
self
):
pg
.
sprite
.
Sprite
.
__init__
(
self
)
def
setup_enemy
(
self
,
x
,
y
,
direction
,
name
,
setup_frames
):
"""Sets up various values for enemy"""
self
.
sprite_sheet
=
setup
.
GFX
[
'smb_enemies_sheet'
]
self
.
frames
=
[]
self
.
frame_index
=
0
self
.
animate_timer
=
0
self
.
death_timer
=
0
self
.
gravity
=
1.5
self
.
state
=
c
.
WALK
self
.
name
=
name
self
.
direction
=
direction
setup_frames
()
self
.
image
=
self
.
frames
[
self
.
frame_index
]
self
.
rect
=
self
.
image
.
get_rect
()
self
.
rect
.
x
=
x
self
.
rect
.
bottom
=
y
self
.
set_velocity
()
def
set_velocity
(
self
):
"""Sets velocity vector based on direction"""
if
self
.
direction
==
c
.
LEFT
:
self
.
x_vel
=
-
2
else
:
self
.
x_vel
=
2
self
.
y_vel
=
0
def
get_image
(
self
,
x
,
y
,
width
,
height
):
"""Get the image frames from the sprite sheet"""
image
=
pg
.
Surface
([
width
,
height
]).
convert
()
rect
=
image
.
get_rect
()
image
.
blit
(
self
.
sprite_sheet
, (
0
,
0
), (
x
,
y
,
width
,
height
))
image
.
set_colorkey
(
c
.
BLACK
)
image
=
pg
.
transform
.
scale
(
image
,
(
int
(
rect
.
width
*
c
.
SIZE_MULTIPLIER
),
int
(
rect
.
height
*
c
.
SIZE_MULTIPLIER
)))
return
image
def
handle_state
(
self
):
"""Enemy behavior based on state"""
if
self
.
state
==
c
.
WALK
:
self
.
walking
()
elif
self
.
state
==
c
.
FALL
:
self
.
falling
()
elif
self
.
state
==
c
.
JUMPED_ON
:
self
.
jumped_on
()
elif
self
.
state
==
c
.
SHELL_SLIDE
:
self
.
shell_sliding
()
elif
self
.
state
==
c
.
DEATH_JUMP
:
self
.
death_jumping
()
def
walking
(
self
):
"""Default state of moving sideways"""
if
(
self
.
current_time
-
self
.
animate_timer
)
>
125
:
if
self
.
frame_index
==
0
:
self
.
frame_index
+=
1
elif
self
.
frame_index
==
1
:
self
.
frame_index
=
0
self
.
animate_timer
=
self
.
current_time
def
falling
(
self
):
"""For when it falls off a ledge"""
if
self
.
y_vel
<
10
:
self
.
y_vel
+=
self
.
gravity
def
jumped_on
(
self
):
"""Placeholder for when the enemy is stomped on"""
pass
def
death_jumping
(
self
):
"""Death animation"""
self
.
rect
.
y
+=
self
.
y_vel
self
.
rect
.
x
+=
self
.
x_vel
self
.
y_vel
+=
self
.
gravity
if
self
.
rect
.
y
>
600
:
self
.
kill
()
def
start_death_jump
(
self
,
direction
):
"""Transitions enemy into a DEATH JUMP state"""
self
.
y_vel
=
-
8
if
direction
==
c
.
RIGHT
:
self
.
x_vel
=
2
else
:
self
.
x_vel
=
-
2
self
.
gravity
=
.5
self
.
frame_index
=
3
self
.
image
=
self
.
frames
[
self
.
frame_index
]
self
.
state
=
c
.
DEATH_JUMP
def
animation
(
self
):
"""Basic animation, switching between two frames"""
self
.
image
=
self
.
frames
[
self
.
frame_index
]
def
update
(
self
,
game_info
,
*
args
):
"""Updates enemy behavior"""
self
.
current_time
=
game_info
[
c
.
CURRENT_TIME
]
self
.
handle_state
()
self
.
animation
()
class
Goomba
(
Enemy
):
def
__init__
(
self
,
y
=
c
.
GROUND_HEIGHT
,
x
=
0
,
direction
=
c
.
LEFT
,
name
=
'goomba'
):
Enemy
.
__init__
(
self
)
self
.
setup_enemy
(
x
,
y
,
direction
,
name
,
self
.
setup_frames
)
def
setup_frames
(
self
):
"""Put the image frames in a list to be animated"""
self
.
frames
.
append
(
self
.
get_image
(
0
,
4
,
16
,
16
))
self
.
frames
.
append
(
self
.
get_image
(
30
,
4
,
16
,
16
))
self
.
frames
.
append
(
self
.
get_image
(
61
,
0
,
16
,
16
))
self
.
frames
.
append
(
pg
.
transform
.
flip
(
self
.
frames
[
1
],
False
,
True
))
def
jumped_on
(
self
):
"""When Mario squishes him"""
self
.
frame_index
=
2
if
(
self
.
current_time
-
self
.
death_timer
)
>
500
:
self
.
kill
()
class
Koopa
(
Enemy
):
def
__init__
(
self
,
y
=
c
.
GROUND_HEIGHT
,
x
=
0
,
direction
=
c
.
LEFT
,
name
=
'koopa'
):
Enemy
.
__init__
(
self
)
self
.
setup_enemy
(
x
,
y
,
direction
,
name
,
self
.
setup_frames
)
def
setup_frames
(
self
):
"""Sets frame list"""
self
.
frames
.
append
(
self
.
get_image
(
150
,
0
,
16
,
24
))
self
.
frames
.
append
(
self
.
get_image
(
180
,
0
,
16
,
24
))
self
.
frames
.
append
(
self
.
get_image
(
360
,
5
,
16
,
15
))
self
.
frames
.
append
(
pg
.
transform
.
flip
(
self
.
frames
[
2
],
False
,
True
))
def
jumped_on
(
self
):
"""When Mario jumps on the Koopa and puts him in his shell"""
self
.
x_vel
=
0
self
.
frame_index
=
2
shell_y
=
self
.
rect
.
bottom
shell_x
=
self
.
rect
.
x
self
.
rect
=
self
.
frames
[
self
.
frame_index
].
get_rect
()
self
.
rect
.
x
=
shell_x
self
.
rect
.
bottom
=
shell_y
def
shell_sliding
(
self
):
"""When the koopa is sliding along the ground in his shell"""
if
self
.
direction
==
c
.
RIGHT
:
self
.
x_vel
=
10
elif
self
.
direction
==
c
.
LEFT
:
self
.
x_vel
=
-
10
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