diff options
Diffstat (limited to 'internal/tui/flamegraph/animation.go')
| -rw-r--r-- | internal/tui/flamegraph/animation.go | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/internal/tui/flamegraph/animation.go b/internal/tui/flamegraph/animation.go index de3635d..103d43b 100644 --- a/internal/tui/flamegraph/animation.go +++ b/internal/tui/flamegraph/animation.go @@ -26,6 +26,7 @@ type frameSpring struct { // AnimationState stores per-frame spring interpolation state. type AnimationState struct { springs []frameSpring + frames []tuiFrame settled bool fps int @@ -71,6 +72,11 @@ func (a *AnimationState) SetTargets(targets []tuiFrame) { next = append(next, spring) } a.springs = next + if cap(a.frames) < len(a.springs) { + a.frames = make([]tuiFrame, len(a.springs)) + } else { + a.frames = a.frames[:len(a.springs)] + } a.settled = len(a.springs) == 0 for _, spring := range a.springs { if !isSpringSettled(spring) { @@ -86,15 +92,18 @@ func (a *AnimationState) Tick(delta float64) bool { a.settled = true return false } + baseDelta := harmonica.FPS(a.fps) if delta <= 0 { - delta = harmonica.FPS(a.fps) + delta = baseDelta } active := false for idx := range a.springs { spring := &a.springs[idx] - spring.widthSpring = harmonica.NewSpring(delta, a.angularVelocity, a.damping) - spring.colSpring = harmonica.NewSpring(delta, a.angularVelocity, a.damping) + if delta != baseDelta { + spring.widthSpring = harmonica.NewSpring(delta, a.angularVelocity, a.damping) + spring.colSpring = harmonica.NewSpring(delta, a.angularVelocity, a.damping) + } spring.currentW, spring.velocityW = spring.widthSpring.Update(spring.currentW, spring.velocityW, spring.targetW) spring.currentCol, spring.velocityCol = spring.colSpring.Update(spring.currentCol, spring.velocityCol, spring.targetCol) if !isSpringSettled(*spring) { @@ -106,15 +115,14 @@ func (a *AnimationState) Tick(delta float64) bool { } // CurrentFrames returns interpolated frames for the current animation step. -func (a AnimationState) CurrentFrames() []tuiFrame { - frames := make([]tuiFrame, 0, len(a.springs)) - for _, spring := range a.springs { +func (a *AnimationState) CurrentFrames() []tuiFrame { + for idx, spring := range a.springs { frame := spring.base frame.Col = maxInt(0, int(math.Round(spring.currentCol))) frame.Width = maxInt(1, int(math.Round(spring.currentW))) - frames = append(frames, frame) + a.frames[idx] = frame } - return frames + return a.frames } // Settled reports whether all active springs are at rest. |