Game Development Reference
In-Depth Information
end
def
create_stats_image
(stats)
# ...
@stats_image
=
Gosu
::
Image
.
from_text(
$window
, text,
Utils
.
main_font,
@font_size
)
end
# ...
def
draw_top_right
@stats_image
.
draw(
$window
.
width
-
@stats_image
.
width
- 20
,
20
,
1000
)
end
end
And here is the extended
DemoState
:
13-advanced-ai/game_states/demo_state.rb
1
class
DemoState
<
PlayState
2
attr_accessor
:tank
3
4
def
enter
5
# Prevent reactivating HUD
6
end
7
8
def
update
9
super
10
@score_display
=
ScoreDisplay
.
new(
object_pool,
20
)
11
12
end
13
14
def
draw
15
super
16
@score_display
.
draw_top_right
17
end
18
19
def
button_down
(
id
)
20
super
21
if
id
==
Gosu
::
KbSpace
22
target_tank
=
@tanks
.
reject
do
|
t
|
23
t
==
@camera
.
target
24
end
.
sample
25
switch_to_tank(target_tank)
26
end
27
end
