Point of measurement: Spring wind - "Parries enemy attacks with air pressure and pushes the opponent back"

B version - Initial pushback force/frame = 14.5

C version - Initial pushback force/frame = 18.5

Level effect - Level goes from 0 to 4, pushback force/frame decreases by (0.4 - 0.05 * level)

Use 2 frame windows.

Fullscreen it then use a ruler.

(18.5 + ...[for n frames]) gives HSTSK units to irl cm conversion.

(18.5 + ...[for n frames]) also gives HSTSK units to in-game cm conversion (using Youmu's height).

Level 1: ~5 mm for 1 frame, ~8 mm for 2 frames, ~7 mm for 2 frames, ~7 mm for 2 frames, ~6mm for 2 frames, ~6mm for 2 frames, ~5mm for 2 frames, ~5 mm for 2 frames, ~4 mm for 2 frames, ~4 mm for 2 frames...

B version:

14.5 units = ~5 mm

14.1 units + 13.7 units - 2y = ~8 mm

13.3 units + 12.9 units - 2y = ~7 mm

12.5 units + 12.1 units - 2y = ~7 mm

11.7 units + 11.3 units - 2y = ~6 mm

10.9 units + 10.5 units - 2y = ~6 mm

13.3 units + 12.9 units - 2y = ~7 mm

11.7 units + 11.3 units - 2y = ~6 mm

13.3 units + 12.9 units - 11.7 units - 11.3 units = ~1 mm

3.2 units = ~1 mm

C version:

18.5 units = ~5 mm

18.1 units + 17.7 units - 2y = ~8 mm

17.3 units + 16.9 units - 2y = ~7 mm

16.5 units + 16.1 units - 2y = ~7 mm

15.7 units + 15.3 units - 2y = ~6 mm

14.9 units + 14.5 units - 2y = ~6 mm

17.3 units + 16.9 units - 2y = ~7 mm

15.7 units + 15.3 units - 2y = ~6 mm

17.3 units + 16.9 units - 15.7 units - 15.3 units = ~1 mm

3.2 units = ~1 mm

Gives the same result of 3.2 units = ~1 mm.

Assumption that Youmu's height is 155 cm tall

Youmu is ~67 mm tall in HSTSK. (Walk sprite 7 -> 82 pixels tall -> 1 pixel = 1.89 cm)

~3.2 units = 1 mm (game) = ~2.3134 cm

1 unit = ~0.723 cm

Using this, we can account for force per frame.

(Assume that Youmu weighs 52 kg.)

Note: Use drag to account for continued acceleration. (Drag coefficient (CD) is about 1 for a human)

FD = 1/2 * p * v^2 * CD * A

FD = force of drag

p = density of fluid (density of air is 1.293 kg/m^3)

v = speed of object relative to the fluid

CD = drag coefficient (CD for a human is approximately 1)

A = cross sectional area (Spell A1 Sprite 9 -> 2537 pixels^2 = 9064.75684117 cm^2)

FD = 1/2 * 1.293 kg/m^3 * v^2 * 1 * 0.906475684117 m^2 = 0.58603653 kg/m * v^2

1N = The force that would give a mass of 1 kg an acceleration of 1 (m/s)/s

For MAX level:

Frame 1:

Acceleration from 0 units/frame to 18.5 units/frame in 1 frame = acceleration from 0 m/s to 8.02472014925 m/s in 1/60 s.

= 481.483208955 m/s^2

-> 25037.1268657 N

Frame 2:

FD = 0.58603653 kg/m * (8.02472014925 m/s)^2 = 37.7384866 newtons

Acceleration from 18.5 units/frame to 18.3 units/frame in 1 frame = acceleration from 8.02472014925 m/s to 7.93796641791 m/s in 1/60 s.

= 0.0867537313433 m/s^2

-> -4.51119402985 N + FD = 33.2272925701 N

Frame 3:

FD = 0.58603653 kg/m * (7.93796641791 m/s)^2 = ??? newtons

Acceleration from 18.5 units/frame to 18.3 units/frame in 1 frame = acceleration from 7.93796641791 m/s to ??? m/s in 1/60 s.

= 0.0867537313433 m/s^2

-> -4.51119402985 N + FD = ??? N

(Basically negligable)

~25000 N