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Minor simplification of animation rate adjustment

This commit is contained in:
Francesco Abbate 2021-03-20 17:00:43 +01:00
parent 7f50df6a2f
commit f9115751b4
1 changed files with 2 additions and 4 deletions
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6
data/core/view.lua
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@ -25,11 +25,9 @@ function View:move_towards(t, k, dest, rate)
t[k] = dest t[k] = dest
else else
rate = rate or 0.5 rate = rate or 0.5
if config.fps ~= 60 then if config.fps ~= 60 or config.animation_rate ~= 1 then
local xrate = common.clamp(rate, 1e-8, 1 - 1e-8)
local alpha = math.log(1 - xrate) * config.animation_rate
local dt = 60 / config.fps local dt = 60 / config.fps
rate = 1 - math.exp(alpha * dt) rate = 1 - common.clamp(1 - rate, 1e-8, 1 - 1e-8)^(config.animation_rate * dt)
end end
t[k] = common.lerp(val, dest, rate) t[k] = common.lerp(val, dest, rate)
end end