I need help writing a program that makes the ball move along the path.

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John Polo
John Polo 2020-10-23
评论： Rena Berman 2021-5-7
This is what my codes look likes:
clear all
clc
close all
createWindow(300,600);
obj = drawBall(0,300,5,'y');
x = 0:1:300;
y = 50 * sin(x/(10*pi)) + 100
plot(x,y)
for k = 1:x
xMove(obj,1)
yMove(obj,ystep)
redraw
end
Please help me figure out the ystep. I have no idea how to do it. Thanks in advance!
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Stephen23
Stephen23 2020-10-24
John Polo's orginal question retrieved from Google Cache:
I need help writing a program that makes the ball move along the path.
This is what my codes look likes:
clear all
clc
close all
createWindow(300,600);
obj = drawBall(0,300,5,'y');
x = 0:1:300;
y = 50 * sin(x/(10*pi)) + 100
plot(x,y)
for i = 1:x
xMove(obj,1)
yMove(obj,ystep)
redraw
end
Please help me figure out the ystep. I have no idea how to do it. Thanks in advance!

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采纳的回答

Walter Roberson
Walter Roberson 2020-10-23
for k = 1:length(x)-1
xstep = x(k+1)-x(k);
xMove(obj, xstep)
ystep = y(k+1)-y(k);
yMove(obj, ystep)
redraw
end

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