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-rw-r--r--scene/resources/animation.cpp268
1 files changed, 113 insertions, 155 deletions
diff --git a/scene/resources/animation.cpp b/scene/resources/animation.cpp
index 7e77ad423c..b371266c83 100644
--- a/scene/resources/animation.cpp
+++ b/scene/resources/animation.cpp
@@ -2463,145 +2463,127 @@ T Animation::_interpolate(const Vector<TKey<T>> &p_keys, double p_time, Interpol
int idx = _find(p_keys, p_time, p_backward);
ERR_FAIL_COND_V(idx == -2, T());
+ int maxi = len - 1;
+ bool is_start_edge = idx == -1;
+ bool is_end_edge = p_backward ? idx == 0 : idx >= maxi;
- int next = 0;
real_t c = 0.0;
- // prepare for all cases of interpolation
-
- if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
- // loop
- if (!p_backward) {
- // no backward
- if (idx >= 0) {
- if (idx < len - 1) {
- next = idx + 1;
- real_t delta = p_keys[next].time - p_keys[idx].time;
- real_t from = p_time - p_keys[idx].time;
-
- if (Math::is_zero_approx(delta)) {
- c = 0;
- } else {
- c = from / delta;
- }
- } else {
- next = 0;
- real_t delta = (length - p_keys[idx].time) + p_keys[next].time;
- real_t from = p_time - p_keys[idx].time;
-
- if (Math::is_zero_approx(delta)) {
- c = 0;
- } else {
- c = from / delta;
- }
- }
- } else {
- // on loop, behind first key
- idx = len - 1;
- next = 0;
+ // Prepare for all cases of interpolation.
+ real_t delta = 0.0;
+ real_t from = 0.0;
+
+ int pre = -1;
+ int next = -1;
+ int post = -1;
+ real_t pre_t = 0.0;
+ real_t to_t = 0.0;
+ real_t post_t = 0.0;
+
+ bool use_cubic = p_interp == INTERPOLATION_CUBIC || p_interp == INTERPOLATION_CUBIC_ANGLE;
+
+ if (!p_loop_wrap || loop_mode == LOOP_NONE) {
+ if (is_start_edge) {
+ idx = p_backward ? maxi : 0;
+ }
+ next = CLAMP(idx + (p_backward ? -1 : 1), 0, maxi);
+ if (use_cubic) {
+ pre = CLAMP(idx + (p_backward ? 1 : -1), 0, maxi);
+ post = CLAMP(idx + (p_backward ? -2 : 2), 0, maxi);
+ }
+ } else if (loop_mode == LOOP_LINEAR) {
+ if (is_start_edge) {
+ idx = p_backward ? 0 : maxi;
+ }
+ next = Math::posmod(idx + (p_backward ? -1 : 1), len);
+ if (use_cubic) {
+ pre = Math::posmod(idx + (p_backward ? 1 : -1), len);
+ post = Math::posmod(idx + (p_backward ? -2 : 2), len);
+ }
+ if (is_start_edge) {
+ if (!p_backward) {
real_t endtime = (length - p_keys[idx].time);
if (endtime < 0) { // may be keys past the end
endtime = 0;
}
- real_t delta = endtime + p_keys[next].time;
- real_t from = endtime + p_time;
-
- if (Math::is_zero_approx(delta)) {
- c = 0;
- } else {
- c = from / delta;
- }
- }
- } else {
- // backward
- if (idx <= len - 1) {
- if (idx > 0) {
- next = idx - 1;
- real_t delta = (length - p_keys[next].time) - (length - p_keys[idx].time);
- real_t from = (length - p_time) - (length - p_keys[idx].time);
-
- if (Math::is_zero_approx(delta)) {
- c = 0;
- } else {
- c = from / delta;
- }
- } else {
- next = len - 1;
- real_t delta = p_keys[idx].time + (length - p_keys[next].time);
- real_t from = (length - p_time) - (length - p_keys[idx].time);
-
- if (Math::is_zero_approx(delta)) {
- c = 0;
- } else {
- c = from / delta;
- }
- }
+ delta = endtime + p_keys[next].time;
+ from = endtime + p_time;
} else {
- // on loop, in front of last key
- idx = 0;
- next = len - 1;
real_t endtime = p_keys[idx].time;
if (endtime > length) { // may be keys past the end
endtime = length;
}
- real_t delta = p_keys[next].time - endtime;
- real_t from = p_time - endtime;
-
- if (Math::is_zero_approx(delta)) {
- c = 0;
- } else {
- c = from / delta;
- }
+ delta = endtime + length - p_keys[next].time;
+ from = endtime + length - p_time;
+ }
+ } else if (is_end_edge) {
+ if (!p_backward) {
+ delta = (length - p_keys[idx].time) + p_keys[next].time;
+ from = p_time - p_keys[idx].time;
+ } else {
+ delta = p_keys[idx].time + (length - p_keys[next].time);
+ from = (length - p_time) - (length - p_keys[idx].time);
}
}
- } else { // no loop
- if (!p_backward) {
- if (idx >= 0) {
- if (idx < len - 1) {
- next = idx + 1;
- real_t delta = p_keys[next].time - p_keys[idx].time;
- real_t from = p_time - p_keys[idx].time;
-
- if (Math::is_zero_approx(delta)) {
- c = 0;
- } else {
- c = from / delta;
- }
- } else {
- next = idx;
+ } else {
+ if (is_start_edge) {
+ idx = p_backward ? len : -1;
+ }
+ next = (int)Math::round(Math::pingpong((float)(idx + (p_backward ? -1 : 1)) + 0.5f, (float)len) - 0.5f);
+ if (use_cubic) {
+ pre = (int)Math::round(Math::pingpong((float)(idx + (p_backward ? 1 : -1)) + 0.5f, (float)len) - 0.5f);
+ post = (int)Math::round(Math::pingpong((float)(idx + (p_backward ? -2 : 2)) + 0.5f, (float)len) - 0.5f);
+ }
+ idx = (int)Math::round(Math::pingpong((float)idx + 0.5f, (float)len) - 0.5f);
+ if (is_start_edge) {
+ if (!p_backward) {
+ real_t endtime = p_keys[idx].time;
+ if (endtime < 0) { // may be keys past the end
+ endtime = 0;
}
+ delta = endtime + p_keys[next].time;
+ from = endtime + p_time;
} else {
- idx = next = 0;
- }
- } else {
- if (idx <= len - 1) {
- if (idx > 0) {
- next = idx - 1;
- real_t delta = (length - p_keys[next].time) - (length - p_keys[idx].time);
- real_t from = (length - p_time) - (length - p_keys[idx].time);
-
- if (Math::is_zero_approx(delta)) {
- c = 0;
- } else {
- c = from / delta;
- }
-
- } else {
- next = idx;
+ real_t endtime = length - p_keys[idx].time;
+ if (endtime > length) { // may be keys past the end
+ endtime = length;
}
+ delta = endtime + length - p_keys[next].time;
+ from = endtime + length - p_time;
+ }
+ } else if (is_end_edge) {
+ if (!p_backward) {
+ delta = length * 2.0 - p_keys[idx].time - p_keys[next].time;
+ from = p_time - p_keys[idx].time;
} else {
- idx = next = len - 1;
+ delta = p_keys[idx].time + p_keys[next].time;
+ from = (length - p_time) - (length - p_keys[idx].time);
}
}
}
+ if (!is_start_edge && !is_end_edge) {
+ if (!p_backward) {
+ delta = p_keys[next].time - p_keys[idx].time;
+ from = p_time - p_keys[idx].time;
+ } else {
+ delta = (length - p_keys[next].time) - (length - p_keys[idx].time);
+ from = (length - p_time) - (length - p_keys[idx].time);
+ }
+ }
+
+ if (Math::is_zero_approx(delta)) {
+ c = 0;
+ } else {
+ c = from / delta;
+ }
+
if (p_ok) {
*p_ok = true;
}
real_t tr = p_keys[idx].transition;
-
- if (tr == 0 || idx == next) {
- // don't interpolate if not needed
+ if (tr == 0) {
+ // Don't interpolate if not needed.
return p_keys[idx].value;
}
@@ -2621,48 +2603,11 @@ T Animation::_interpolate(const Vector<TKey<T>> &p_keys, double p_time, Interpol
} break;
case INTERPOLATION_CUBIC:
case INTERPOLATION_CUBIC_ANGLE: {
- int pre = 0;
- int post = 0;
- if (!p_backward) {
- pre = idx - 1;
- if (pre < 0) {
- if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
- pre = len - 1;
- } else {
- pre = 0;
- }
- }
- post = next + 1;
- if (post >= len) {
- if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
- post = 0;
- } else {
- post = next;
- }
- }
- } else {
- pre = idx + 1;
- if (pre >= len) {
- if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
- pre = 0;
- } else {
- pre = idx;
- }
- }
- post = next - 1;
- if (post < 0) {
- if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
- post = len - 1;
- } else {
- post = 0;
- }
- }
- }
-
- real_t pre_t = 0.0;
- real_t to_t = 0.0;
- real_t post_t = 0.0;
- if (loop_mode == LOOP_LINEAR && p_loop_wrap) {
+ if (!p_loop_wrap || loop_mode == LOOP_NONE) {
+ pre_t = p_keys[pre].time - p_keys[idx].time;
+ to_t = p_keys[next].time - p_keys[idx].time;
+ post_t = p_keys[post].time - p_keys[idx].time;
+ } else if (loop_mode == LOOP_LINEAR) {
pre_t = pre > idx ? -length + p_keys[pre].time - p_keys[idx].time : p_keys[pre].time - p_keys[idx].time;
to_t = next < idx ? length + p_keys[next].time - p_keys[idx].time : p_keys[next].time - p_keys[idx].time;
post_t = next < idx || post <= idx ? length + p_keys[post].time - p_keys[idx].time : p_keys[post].time - p_keys[idx].time;
@@ -2670,6 +2615,19 @@ T Animation::_interpolate(const Vector<TKey<T>> &p_keys, double p_time, Interpol
pre_t = p_keys[pre].time - p_keys[idx].time;
to_t = p_keys[next].time - p_keys[idx].time;
post_t = p_keys[post].time - p_keys[idx].time;
+
+ if ((pre > idx && idx == next && post < next) || (pre < idx && idx == next && post > next)) {
+ pre_t = p_keys[idx].time - p_keys[pre].time;
+ } else if (pre == idx) {
+ pre_t = idx < next ? -p_keys[idx].time * 2.0 : (length - p_keys[idx].time) * 2.0;
+ }
+
+ if (idx == next) {
+ to_t = pre < idx ? (length - p_keys[idx].time) * 2.0 : -p_keys[idx].time * 2.0;
+ post_t = p_keys[next].time - p_keys[post].time + to_t;
+ } else if (next == post) {
+ post_t = idx < next ? (length - p_keys[next].time) * 2.0 + to_t : -p_keys[next].time * 2.0 + to_t;
+ }
}
if (p_interp == INTERPOLATION_CUBIC_ANGLE) {
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-08 13:38:17 +0000