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Make AnimatedSprite able to play backwards 

(cherry picked from commit 4a2c433028)
This commit is contained in:
Michael Alexsander Silva Dias 2019-03-17 04:03:23 -03:00 committed by Hein-Pieter van Braam-Stewart
parent 42fa261563
commit 94f6c3a810
3 changed files with 23 additions and 8 deletions
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2
doc/classes/AnimatedSprite.xml
View File

@ -22,7 +22,7 @@
<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;