maliang.animation.controllers¶

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源代码：maliang/animation/controllers.py

Controller generator and standard control functions.

Definition of control function:

def f(t: float) -> float: ...

t: 0% ~ 100%, indicates the percentage of time
return: real number, indicates a multiple of the cardinality of the animation

函数：

generate –

Generate a control function from an ordinary mathematical function.
linear –

Speed remains the same.
smooth –

Speed is slow first, then fast and then slow. (slow -> fast -> slow)
rebound –

Before the end, displacement will bounce off a bit.
ease_in –

Gradually accelerate. (slow -> fast)
ease_out –

Gradually decelerate. (fast -> slow)

generate ¶

generate(
    base: collections.abc.Callable[[float], float], start: float, end: float
) -> collections.abc.Callable[[float], float]

generate(
    base: collections.abc.Callable[[float], float],
    start: float,
    end: float,
    *,
    map_y: typing.Literal[False] = False
) -> collections.abc.Callable[[float], float]

generate(
    base: collections.abc.Callable[[float], float], start: float, end: float, *, map_y: bool = True
) -> collections.abc.Callable[[float], float]

Generate a control function from an ordinary mathematical function.

base: base function, an ordinary mathematical function
start: the first value of the parameter of the base function
end: the last value of the parameter of the base function
map_y: whether map the final return value to 1

linear ¶

linear(t: int) -> int

linear(t: float) -> float

linear(t: float) -> float

Speed remains the same.

t: the percentage of time

smooth ¶

smooth(t: float) -> float

Speed is slow first, then fast and then slow. (slow -> fast -> slow)

t: the percentage of time

rebound ¶

rebound(t: float) -> float

Before the end, displacement will bounce off a bit.

t: the percentage of time

ease_in ¶

ease_in(t: float) -> float

Gradually accelerate. (slow -> fast)

t: the percentage of time

ease_out ¶

ease_out(t: float) -> float

Gradually decelerate. (fast -> slow)

t: the percentage of time