lerp(a, b, amt)
| Argument | Description |
|---|---|
| a | The first value. |
| b | The second value. |
| amt | The amount to interpolate. |
Returns: Real.
With this function you can find the value that equates to the position between two other values for a given percentage. So if you do, for example:
lerp(0, 10, 0.5)
you would get the return value of 5, which is 50% of the input values. You can extrapolate using this function too, by supplying a positive or negative value for the interpolation amount so that doing something like:
lerp(0, 10, 2)
will return a value of 20.
xx = lerp(x, x + hspeed, room_speed);
yy = lerp(y, y + vspeed, room_speed);
The above code uses the linear interpolation function to predict where an instance would have moved to after one second of game time.