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Working on how to do an idle 'breathing' animation for sprites.

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This commit is contained in:
Zed A. Shaw 2025-10-28 01:03:59 -04:00
parent 2ecd8528ea
commit 26d313269c
3 changed files with 28 additions and 9 deletions
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7
animation.cpp
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@ -17,7 +17,7 @@ namespace components {
case ease::NONE: case ease::NONE:
return 0.0; return 0.0;
case ease::SINE: case ease::SINE:
return tick; return std::abs(std::sin(subframe * ease_rate));
case ease::OUT_CIRC: case ease::OUT_CIRC:
return ease::out_circ(tick); return ease::out_circ(tick);
case ease::OUT_BOUNCE: case ease::OUT_BOUNCE:
@ -41,6 +41,7 @@ namespace components {
if(playing && current < frames) { if(playing && current < frames) {
float tick = twitching(); float tick = twitching();
fmt::print("tick: {}\r", tick);
if(stationary) { if(stationary) {
switch(motion) { switch(motion) {
@ -178,9 +179,9 @@ namespace animation {
return MGR.animations.contains(name); return MGR.animations.contains(name);
} }
Animation load(const std::string& name) { Animation load(const std::string& name, const std::string& state) {
dbc::check(initialized, "You forgot to initialize animation."); dbc::check(initialized, "You forgot to initialize animation.");
return MGR.animations.at(name); return MGR.animations.at(name + state);
} }
void configure(DinkyECS::World& world, DinkyECS::Entity entity) { void configure(DinkyECS::World& world, DinkyECS::Entity entity) {

2
animation.hpp
View file

@ -16,7 +16,7 @@ namespace animation {
void center(sf::Sprite& target, sf::Vector2f pos); void center(sf::Sprite& target, sf::Vector2f pos);
void init(); void init();
components::Animation load(const std::string& name); components::Animation load(const std::string& name, const std::string& state="");
bool has(const std::string& name); bool has(const std::string& name);
void configure(DinkyECS::World& world, DinkyECS::Entity entity); void configure(DinkyECS::World& world, DinkyECS::Entity entity);
void step_animation(DinkyECS::World& world, DinkyECS::Entity entity, sf::Vector2f& scale_out, sf::Vector2f& pos_out, sf::IntRect& rect_out); void step_animation(DinkyECS::World& world, DinkyECS::Entity entity, sf::Vector2f& scale_out, sf::Vector2f& pos_out, sf::IntRect& rect_out);

28
assets/animations.json
View file

@ -235,15 +235,33 @@
"flipped": false, "flipped": false,
"looped": false "looped": false
}, },
"rat_king_boss": {
"_type": "Animation",
"easing": 4,
"motion": 0,
"ease_rate": 0.5,
"min_x": 0.6,
"min_y": 0.6,
"max_x": 0.8,
"max_y": 0.8,
"simple": false,
"frames": 2,
"speed": 0.02,
"scaled": true,
"stationary": true,
"toggled": false,
"flipped": false,
"looped": false
},
"torch_fixture": { "torch_fixture": {
"_type": "Animation", "_type": "Animation",
"easing": 0, "easing": 0,
"motion": 0, "motion": 0,
"ease_rate": 0.5, "ease_rate": 0.1,
"min_x": 0.5, "min_x": 0.6,
"min_y": 0.5, "min_y": 0.6,
"max_x": 0.5, "max_x": 0.6,
"max_y": 0.5, "max_y": 0.6,
"simple": false, "simple": false,
"frames": 3, "frames": 3,
"speed": 0.2, "speed": 0.2,