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abdullh.alsoleman
Front-End
Commits
7defbc1c
Commit
7defbc1c
authored
Jan 29, 2016
by
Viktor Lidholt
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Merge pull request #1486 from vlidholt/master
Adds opacity property to particle systems
parents
1703d065
59225088
Changes
1
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1 changed file
with
7 additions
and
1 deletion
+7
-1
particle_system.dart
packages/flutter_sprites/lib/src/particle_system.dart
+7
-1
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packages/flutter_sprites/lib/src/particle_system.dart
View file @
7defbc1c
...
...
@@ -151,6 +151,8 @@ class ParticleSystem extends Node {
double
_emitCounter
;
int
_numEmittedParticles
=
0
;
double
opacity
=
1.0
;
static
Paint
_paint
=
new
Paint
()
..
filterQuality
=
ui
.
FilterQuality
.
low
..
isAntiAlias
=
false
;
...
...
@@ -358,6 +360,7 @@ class ParticleSystem extends Node {
}
void
paint
(
Canvas
canvas
)
{
if
(
opacity
==
0.0
)
return
;
List
<
ui
.
RSTransform
>
transforms
=
<
ui
.
RSTransform
>[];
List
<
Rect
>
rects
=
<
Rect
>[];
...
...
@@ -394,7 +397,7 @@ class ParticleSystem extends Node {
// Color
if
(
particle
.
simpleColorSequence
!=
null
)
{
Color
particleColor
=
new
Color
.
fromARGB
(
particle
.
simpleColorSequence
[
0
]
.
toInt
().
clamp
(
0
,
255
),
(
particle
.
simpleColorSequence
[
0
]
*
opacity
)
.
toInt
().
clamp
(
0
,
255
),
particle
.
simpleColorSequence
[
1
].
toInt
().
clamp
(
0
,
255
),
particle
.
simpleColorSequence
[
2
].
toInt
().
clamp
(
0
,
255
),
particle
.
simpleColorSequence
[
3
].
toInt
().
clamp
(
0
,
255
));
...
...
@@ -406,6 +409,9 @@ class ParticleSystem extends Node {
}
else
{
particleColor
=
colorSequence
.
colorAtPosition
(
particle
.
colorPos
);
}
if
(
opacity
!=
1.0
)
{
particleColor
=
particleColor
.
withAlpha
((
particleColor
.
alpha
*
opacity
).
toInt
().
clamp
(
0
,
255
));
}
colors
.
add
(
particleColor
);
}
}
...
...
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