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Make AnimatedSprite able to play backwards

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This commit is contained in:
Michael Alexsander Silva Dias 2019-03-17 04:03:23 -03:00
parent df7d3708c5
commit 4a2c433028
3 changed files with 23 additions and 8 deletions
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2
doc/classes/AnimatedSprite.xml
View file

@ -24,7 +24,7 @@
<argument index="0" name="anim" type="String" default="&quot;&quot;">
</argument>
<description>
Play the animation set in parameter. If no parameter is provided, the current animation is played.
Play the animation set in parameter. If no parameter is provided, the current animation is played. Property [code]backwards[/code] plays the animation in reverse if set to [code]true[/code].
</description>
</method>
<method name="stop">

26
scene/2d/animated_sprite.cpp
View file

@ -393,19 +393,30 @@ void AnimatedSprite::_notification(int p_what) {
timeout = _get_frame_duration();
int fc = frames->get_frame_count(animation);
if (frame >= fc - 1) {
if ((!backwards && frame >= fc - 1) || (backwards && frame <= 0)) {
if (frames->get_animation_loop(animation)) {
frame = 0;
if (backwards)
frame = fc - 1;
else
frame = 0;
emit_signal(SceneStringNames::get_singleton()->animation_finished);
} else {
frame = fc - 1;
if (backwards)
frame = 0;
else
frame = fc - 1;
if (!is_over) {
is_over = true;
emit_signal(SceneStringNames::get_singleton()->animation_finished);
}
}
} else {
frame++;
if (backwards)
frame--;
else
frame++;
}
update();
@ -594,10 +605,12 @@ bool AnimatedSprite::_is_playing() const {
return playing;
}
void AnimatedSprite::play(const StringName &p_animation) {
void AnimatedSprite::play(const StringName &p_animation, const bool p_backwards) {
if (p_animation)
set_animation(p_animation);
backwards = p_backwards;
_set_playing(true);
}
@ -666,7 +679,7 @@ void AnimatedSprite::_bind_methods() {
ClassDB::bind_method(D_METHOD("_set_playing", "playing"), &AnimatedSprite::_set_playing);
ClassDB::bind_method(D_METHOD("_is_playing"), &AnimatedSprite::_is_playing);
ClassDB::bind_method(D_METHOD("play", "anim"), &AnimatedSprite::play, DEFVAL(StringName()));
ClassDB::bind_method(D_METHOD("play", "anim", "backwards"), &AnimatedSprite::play, DEFVAL(StringName()));
ClassDB::bind_method(D_METHOD("stop"), &AnimatedSprite::stop);
ClassDB::bind_method(D_METHOD("is_playing"), &AnimatedSprite::is_playing);
@ -713,6 +726,7 @@ AnimatedSprite::AnimatedSprite() {
frame = 0;
speed_scale = 1.0f;
playing = false;
backwards = false;
animation = "default";
timeout = 0;
is_over = false;

3
scene/2d/animated_sprite.h
View file

@ -128,6 +128,7 @@ class AnimatedSprite : public Node2D {
Ref<SpriteFrames> frames;
bool playing;
bool backwards;
StringName animation;
int frame;
float speed_scale;
@ -169,7 +170,7 @@ public:
void set_sprite_frames(const Ref<SpriteFrames> &p_frames);
Ref<SpriteFrames> get_sprite_frames() const;
void play(const StringName &p_animation = StringName());
void play(const StringName &p_animation = StringName(), const bool p_backwards = false);
void stop();
bool is_playing() const;