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featherkit/src/rendering/animatedquad.cpp at master · therocode/featherkit · GitHub
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#
include
<
fea/rendering/animatedquad.hpp
>
#
include
<
fea/assert.hpp
>
namespace
fea
{
AnimatedQuad::AnimatedQuad
() : Quad(),
mCurrentAnimation
(
nullptr
),
mClock
(
0
),
mCurrentFrame
(
0
),
mAnimate
(
false
),
mBack
(
false
)
{
}
AnimatedQuad::AnimatedQuad
(
const
glm::vec2& size) : Quad(size),
mCurrentAnimation
(
nullptr
),
mClock
(
0
),
mCurrentFrame
(
0
),
mAnimate
(
false
),
mBack
(
false
)
{
}
void
AnimatedQuad::setAnimation
(
const
Animation& animation,
bool
play)
{
mClock
=
0
;
if
(&animation !=
mCurrentAnimation
)
{
mCurrentAnimation
= &animation;
mAnimate
= play;
AnimationBehavior animBehavior =
mCurrentAnimation
->
getAnimationBehavior
();
if
(animBehavior ==
FORWARDS
|| animBehavior ==
BOUNCE
)
{
mCurrentFrame
=
0
;
}
else
if
(animBehavior ==
BACKWARDS
|| animBehavior ==
INV_BOUNCE
)
{
mCurrentFrame
=
mCurrentAnimation
->
getFrameAmount
() -
1
;
}
else
if
(animBehavior ==
RANDOM
)
{
mCurrentFrame
= (
uint32_t
)
rand
() %
mCurrentAnimation
->
getFrameAmount
();
}
}
setConstraints
();
}
const
Animation&
AnimatedQuad::getAnimation
()
const
{
FEA_ASSERT
(
mCurrentAnimation
!=
nullptr
,
"
No animation set!
"
);
return
*
mCurrentAnimation
;
}
void
AnimatedQuad::setTexture
(
const
Texture& texture)
{
Quad::setTexture
(texture);
setConstraints
();
}
void
AnimatedQuad::tick
()
{
if
(
mTexture
)
{
if
(
mAnimate
&&
mCurrentAnimation
!=
nullptr
)
{
mClock
++;
uint32_t
delay =
mCurrentAnimation
->
getDelay
();
uint32_t
frameAmount =
mCurrentAnimation
->
getFrameAmount
();
AnimationBehavior animBehavior =
mCurrentAnimation
->
getAnimationBehavior
();
if
(frameAmount <=
1
)
return
;
switch
(animBehavior)
{
case
FORWARDS
:
animateForwards
();
break
;
case
BACKWARDS
:
animateBackwards
();
break
;
case
BOUNCE
:
animateBounce
();
break
;
case
INV_BOUNCE
:
animateInvBounce
();
break
;
case
RANDOM
:
if
(
mClock
== delay)
{
mCurrentFrame
= (
uint32_t
)
rand
() % frameAmount;
mClock
=
0
;
}
break
;
default
:
break
;
}
setConstraints
();
}
}
}
void
AnimatedQuad::playAnimation
(
uint32_t
startFrame)
{
FEA_ASSERT
(
mCurrentAnimation
!=
nullptr
,
"
No animation set when calling playAnimation!
"
);
mAnimate
=
true
;
mClock
= startFrame *
mCurrentAnimation
->
getDelay
();
setConstraints
();
}
void
AnimatedQuad::stopAnimation
()
{
mAnimate
=
false
;
}
void
AnimatedQuad::setAnimationFrame
(
uint32_t
frame)
{
FEA_ASSERT
(
mCurrentAnimation
!=
nullptr
,
"
No animation set when calling setAnimationFrame!
"
);
mCurrentFrame
= frame;
setConstraints
();
}
uint32_t
AnimatedQuad::getAnimationFrame
()
const
{
return
mCurrentFrame
;
}
bool
AnimatedQuad::isPlaying
()
const
{
return
mAnimate
;
}
void
AnimatedQuad::onAnimationEnd
(std::function<
void
(
void
)> callback)
{
mOnEnd
= callback;
}
void
AnimatedQuad::animateForwards
()
{
bool
loop =
mCurrentAnimation
->
getLoop
();
uint32_t
delay =
mCurrentAnimation
->
getDelay
();
uint32_t
frameAmount =
mCurrentAnimation
->
getFrameAmount
();
if
(
mClock
== delay)
{
mCurrentFrame
++;
mClock
=
0
;
}
if
(
mCurrentFrame
== frameAmount)
{
if
(!loop)
{
mAnimate
=
false
;
mCurrentFrame
--;
if
(
mOnEnd
)
mOnEnd
();
}
else
{
mCurrentFrame
=
0
;
}
}
}
void
AnimatedQuad::animateBackwards
()
{
bool
loop =
mCurrentAnimation
->
getLoop
();
uint32_t
delay =
mCurrentAnimation
->
getDelay
();
uint32_t
frameAmount =
mCurrentAnimation
->
getFrameAmount
();
if
(
mClock
== delay)
{
mCurrentFrame
--;
mClock
=
0
;
}
if
(
mCurrentFrame
== (
uint32_t
)-
1
)
{
if
(!loop)
{
mAnimate
=
false
;
mCurrentFrame
=
0
;
if
(
mOnEnd
)
mOnEnd
();
}
else
{
mCurrentFrame
= frameAmount -
1
;
}
}
}
void
AnimatedQuad::animateBounce
()
{
bool
loop =
mCurrentAnimation
->
getLoop
();
uint32_t
delay =
mCurrentAnimation
->
getDelay
();
uint32_t
frameAmount =
mCurrentAnimation
->
getFrameAmount
();
if
(!
mBack
)
{
if
(
mClock
== delay)
{
mCurrentFrame
++;
mClock
=
0
;
}
if
(
mCurrentFrame
== frameAmount)
{
mCurrentFrame
-=
2
;
mBack
=
true
;
}
}
else
{
if
(
mClock
== delay)
{
mCurrentFrame
--;
mClock
=
0
;
}
if
(
mCurrentFrame
== (
uint32_t
)-
1
)
{
if
(!loop)
{
mAnimate
=
false
;
mCurrentFrame
=
0
;
if
(
mOnEnd
)
mOnEnd
();
}
else
{
mCurrentFrame
=
1
;
mBack
=
false
;
}
}
}
}
void
AnimatedQuad::animateInvBounce
()
{
bool
loop =
mCurrentAnimation
->
getLoop
();
uint32_t
delay =
mCurrentAnimation
->
getDelay
();
uint32_t
frameAmount =
mCurrentAnimation
->
getFrameAmount
();
if
(!
mBack
)
{
if
(
mClock
== delay)
{
mCurrentFrame
--;
mClock
=
0
;
}
if
(
mCurrentFrame
== (
uint32_t
)-
1
)
{
mCurrentFrame
+=
2
;
mBack
=
true
;
}
}
else
{
if
(
mClock
== delay)
{
mCurrentFrame
++;
mClock
=
0
;
}
if
(
mCurrentFrame
== frameAmount)
{
if
(!loop)
{
mAnimate
=
false
;
mCurrentFrame
--;
if
(
mOnEnd
)
mOnEnd
();
}
else
{
mCurrentFrame
= frameAmount -
2
;
mBack
=
false
;
}
}
}
}
void
AnimatedQuad::setConstraints
()
{
if
(
mTexture
&&
mCurrentAnimation
)
{
auto
pixelConstraints =
mCurrentAnimation
->
getConstraints
(
mCurrentFrame
);
auto
textureSize =
static_cast
<glm::vec2>(
mTexture
->
getSize
());
mConstraints
=
glm::vec4
(
glm::vec2
(pixelConstraints.
x
, pixelConstraints.
y
) / textureSize.
x
,
glm::vec2
(pixelConstraints.
z
, pixelConstraints.
w
) / textureSize.
y
);
}
}
}
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