I need help with an error

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mn n
mn n 2018-4-27
回答： Siyu Guo 2018-4-28
This is my code. It is functional, but whenever I run it, there is an error. I am stimulating the dart game cricket.
This is the error.
darts(17,19)
Index in position 1 exceeds array bounds (must not exceed 1).
Error in darts (line 22)
wedge = (wedges(xw,yw));
Code is:
function [score1,score2] = darts(wedges,rings)
% goal: Close out numbers 15-20
% Hit each three times (three singles, double and a single or a triple)
m1 =[15:20,25;ones(3,7)];
m2 =[15:20,25;ones(3,7)];
I = [15:21];
j = length(I);
k = 0;
n = 0;
score1 = 0;
score2 = 0;
while m1(4,1) + m1(4,2) + m1(4,3) + m1(4,4) + m1(4,5) + m1(4,6) + m1(4,7)~=0 && m2(4,1) + m2(4,2) + m2(4,3) + m2(4,4) + m2(4,5) + m2(4,6) + m2(4,7)~=0
n = n+1;
for i = 1:3
n = n +1;
xr = randi([1 512],1,1);
yr = randi([1 512],1,1);
xw = randi([1 512],1,1);
yw = randi([1 512],1,1);
wedge = (wedges(xw,yw));
wedgex = wedge-(j+7) ;
ring = rings(xr,yr);
if wedge >14 && wedge <21
if ring == 3
m1(2:4,wedgex) = 0;
else
if m1(2,wedgex)==0 && m1(3,wedgex)==0 && m1(4,wedgex)==0
score1 = score1 + wedge*ring
else
if ring >1
if m1(1+ring,wedgex)~=0 & m1(2+ring,wedgex)~=0
m1(2:ring+1,wedgex)=0;
display(m1);
elseif m1(2:ring+1,wedgex)==0
if m1(2:ring+2,wedgex)==0
m1(2:ring+3,wedgex)=0;
display(m1);
elseif m1(ring+2,wedgex)~=0
m1(2:ring+2,wedgex)=0;
display(m1);
end
end
elseif ring ==1
if m1(2:ring+1,wedgex)~=0
m1(2:ring+1,wedgex)=0;
else
if m1(2:ring+2,wedgex)==0
m1(2:ring+3,wedgex)=0;
display(m1);
else
m1(2:ring+2,wedgex)=0;
display(m1);
end
end
end
end
end
if m1(2:4,wedgex) == 0
end
end
if wedge == 25
wedgex = 7;
if ring == 2 || ring ==3
if m1(2,7)==0 && m1(3,7) == 0 && m1(4,7) == 0
score1 = score1 + wedge*2
end
else
score1 = score1 + 25*ring
if m1(2:ring+1,7)~=0
m1(2:ring+1,7)=0;
display(m1);
else
if m1(2:ring+2,7)~=0
m1(2:ring+2,7) = 0;
display(m1);
else
m1(2:ring+3,7) ~= 0;
m1(2:ring+3,7) = 0;
display(m1);
end
end
end
end
if wedge < 15
display('You did not score');
end
fprintf('The dart landed on the %d ring in the %d wedge \n',ring,wedge)
end
score1
score2
for i = 1:3
n = n +1;
xr = randi([1 512],1,1);
yr = randi([1 512],1,1);
xw = randi([1 512],1,1);
yw = randi([1 512],1,1);
wedge = (wedges(xw,yw));
wedgex = wedge-(j+7);
ring = rings(xr,yr);
if wedge >14 && wedge <21
if ring == 3
m2(2:4,wedgex) = 0;
else
if m2(2,wedgex)==0 && m2(3,wedgex)==0 && m2(4,wedgex)==0
score2 = score2 + wedge*ring
else
if ring >1
if m2(1+ring,wedgex)~=0 & m2(2+ring,wedgex)~=0
m2(2:ring+1,wedgex)=0;
display(m2);
elseif m2(2:ring+1,wedgex)==0
if m2(2:ring+2,wedgex)==0
m2(2:ring+3,wedgex)=0;
display(m2);
elseif m2(ring+2,wedgex)~=0
m2(2:ring+2,wedgex)=0;
display(m2);
end
end
elseif ring ==1
if m2(2:ring+1,wedgex)~=0
m2(2:ring+1,wedgex)=0;
else
if m2(2:ring+2,wedgex)==0
m2(2:ring+3,wedgex)=0;
display(m2);
else
m2(2:ring+2,wedgex)=0;
end
end
end
end
end
if m2(2:4,wedgex) == 0
end
end
if wedge == 25
wedgex=7;
if ring == 2 || ring ==3
if m2(2,7)==0 && m2(3,7) == 0 && m2(4,7) == 0
score2 = score2 + wedge*2
end
else
score2 = score2 + 25*ring
if m2(2:ring+1,7)~=0
m2(2:ring+1,7)=0;
display(m2);
else
if m2(2:ring+2,7)~=0
m2(2:ring+2,7) = 0;
display(m2);
else
m2(2:ring+3,7) ~= 0;
m2(2:ring+3,7) = 0;
display(m2);
end
end
end
end
if wedge < 15
display('You did not score');
end
fprintf('The dart landed on the %d ring in the %d wedge \n',ring,wedge)
end
score1
score2
end
if m1(4,1) + m1(4,2) + m1(4,3) + m1(4,4) + m1(4,5) + m1(4,6) + m1(4,7)==0
fprintf('Player 1 closed his board out first and has a score of %d \n',score1)
fprintf('Player 2 has a score of %d \n',score2)
if score1 > score2
fprintf('Player 1 wins with a score of %d \n',score1)
else
if score1 < score2 || m2(4,1) + m2(4,2) + m2(4,3) + m2(4,4) + m2(4,5) + m2(4,6) + m2(4,7)~=0
disp('Player 1 closed out there board but player 2s score is higher, keep playing')
while score1 < score2 && m2(4,1) + m2(4,2) + m2(4,3) + m2(4,4) + m2(4,5) + m2(4,6) + m2(4,7)~=0
n = n +1;
for i = 1:3
n = n +1;
xr = randi([1 512],1,1);
yr = randi([1 512],1,1);
xw = randi([1 512],1,1);
yw = randi([1 512],1,1);
wedge = (wedges(xw,yw));
wedgex = wedge-(j+7) ;
ring = rings(xr,yr);
if wedge >14 && wedge <21
if ring == 3
m1(2:4,wedgex) = 0;
else
if m1(2,wedgex)==0 && m1(3,wedgex)==0 && m1(4,wedgex)==0
score1 = score1 + wedge*ring
else
if ring >1
if m1(1+ring,wedgex)~=0 & m1(2+ring,wedgex)~=0
m1(2:ring+1,wedgex)=0;
display(m1);
elseif m1(2:ring+1,wedgex)==0
if m1(2:ring+2,wedgex)==0
m1(2:ring+3,wedgex)=0;
display(m1);
elseif m1(ring+2,wedgex)~=0
m1(2:ring+2,wedgex)=0;
display(m1);
end
end
elseif ring ==1
if m1(2:ring+1,wedgex)~=0
m1(2:ring+1,wedgex)=0;
else
if m1(2:ring+2,wedgex)==0
m1(2:ring+3,wedgex)=0;
display(m1);
else
m1(2:ring+2,wedgex)=0;
display(m1);
end
end
end
end
end
if m1(2:4,wedgex) == 0
end
end
if wedge == 25
wedgex = 7;
if ring == 2 || ring ==3
if m1(2,7)==0 && m1(3,7) == 0 && m1(4,7) == 0
score1 = score1 + wedge*2
end
else
score1 = score1 + 25*ring
if m1(2:ring+1,7)~=0
m1(2:ring+1,7)=0;
display(m1);
else
if m1(2:ring+2,7)~=0
m1(2:ring+2,7) = 0;
display(m1);
else
m1(2:ring+3,7) ~= 0;
m1(2:ring+3,7) = 0;
display(m1);
end
end
end
end
if wedge < 15
display('You did not score');
end
fprintf('The dart landed on the %d ring in the %d wedge \n',ring,wedge)
end
score1
score2
for i = 1:3
n = n +1;
xr = randi([1 512],1,1);
yr = randi([1 512],1,1);
xw = randi([1 512],1,1);
yw = randi([1 512],1,1);
wedge = (wedges(xw,yw));
wedgex = wedge-(j+7);
ring = rings(xr,yr);
if wedge >14 && wedge <21
if ring == 3
m2(2:4,wedgex) = 0;
else
if m2(2,wedgex)==0 && m2(3,wedgex)==0 && m2(4,wedgex)==0
score2 = score2 + wedge*ring
else
if ring >1
if m2(1+ring,wedgex)~=0 & m2(2+ring,wedgex)~=0
m2(2:ring+1,wedgex)=0;
display(m2);
elseif m2(2:ring+1,wedgex)==0
if m2(2:ring+2,wedgex)==0
m2(2:ring+3,wedgex)=0;
display(m2);
elseif m2(ring+2,wedgex)~=0
m2(2:ring+2,wedgex)=0;
display(m2);
end
end
elseif ring ==1
if m2(2:ring+1,wedgex)~=0
m2(2:ring+1,wedgex)=0;
else
if m2(2:ring+2,wedgex)==0
m2(2:ring+3,wedgex)=0;
display(m2);
else
m2(2:ring+2,wedgex)=0;
end
end
end
end
end
if m2(2:4,wedgex) == 0
end
end
if wedge == 25
wedgex=7;
if ring == 2 || ring ==3
if m2(2,7)==0 && m2(3,7) == 0 && m2(4,7) == 0
score2 = score2 + wedge*2
end
else
score2 = score2 + 25*ring
if m2(2:ring+1,7)~=0
m2(2:ring+1,7)=0;
display(m2);
else
if m2(2:ring+2,7)~=0
m2(2:ring+2,7) = 0;
display(m2);
else
m2(2:ring+3,7) ~= 0;
m2(2:ring+3,7) = 0;
display(m2);
end
end
end
end
if wedge < 15
display('You did not score');
end
fprintf('The dart landed on the %d ring in the %d wedge \n',ring,wedge)
end
score1
score2
end
if score1 > score2
fprintf('Player 1 reached a higher score before player 2 could close out his board \n');
fprintf('Player 1 wins with a score of %d to % d \n',score1,score2);
else
fprintf('Player 2 closed out his board with a higher score then player 1 \n ');
fprintf('Player 2 wins with a score of %d to %d \n',score2,score1);
end
end
end
else
fprintf('Player 2 closed his board out first and has a score of %d \n',score2)
fprintf('Player 1 has a score of %d \n',score1)
if score2 > score1
fprintf('Player 2 wins with a score of %d \n',score2)
else
if score2 < score1 || m1(4,1) + m1(4,2) + m1(4,3) + m1(4,4) + m1(4,5) + m1(4,6) + m1(4,7)~=0
disp('Player 2 closed out there board but player 1s score is higher, keep playing')
while score2 < score1 && m1(4,1) + m1(4,2) + m1(4,3) + m1(4,4) + m1(4,5) + m1(4,6) + m1(4,7)~=0
n = n+1;
for i = 1:3
n = n +1;
xr = randi([1 512],1,1);
yr = randi([1 512],1,1);
xw = randi([1 512],1,1);
yw = randi([1 512],1,1);
wedge = (wedges(xw,yw));
wedgex = wedge-(j+7) ;
ring = rings(xr,yr);
if wedge >14 && wedge <21
if ring == 3
m1(2:4,wedgex) = 0;
else
if m1(2,wedgex)==0 && m1(3,wedgex)==0 && m1(4,wedgex)==0
score1 = score1 + wedge*ring
else
if ring >1
if m1(1+ring,wedgex)~=0 & m1(2+ring,wedgex)~=0
m1(2:ring+1,wedgex)=0;
display(m1);
elseif m1(2:ring+1,wedgex)==0
if m1(2:ring+2,wedgex)==0
m1(2:ring+3,wedgex)=0;
display(m1);
elseif m1(ring+2,wedgex)~=0
m1(2:ring+2,wedgex)=0;
display(m1);
end
end
elseif ring ==1
if m1(2:ring+1,wedgex)~=0
m1(2:ring+1,wedgex)=0;
else
if m1(2:ring+2,wedgex)==0
m1(2:ring+3,wedgex)=0;
display(m1);
else
m1(2:ring+2,wedgex)=0;
display(m1);
end
end
end
end
end
if m1(2:4,wedgex) == 0
end
end
if wedge == 25
wedgex = 7;
if ring == 2 || ring ==3
if m1(2,7)==0 && m1(3,7) == 0 && m1(4,7) == 0
score1 = score1 + wedge*2
end
else
score1 = score1 + 25*ring
if m1(2:ring+1,7)~=0
m1(2:ring+1,7)=0;
display(m1);
else
if m1(2:ring+2,7)~=0
m1(2:ring+2,7) = 0;
display(m1);
else
m1(2:ring+3,7) ~= 0;
m1(2:ring+3,7) = 0;
display(m1);
end
end
end
end
if wedge < 15
display('You did not score');
end
fprintf('The dart landed on the %d ring in the %d wedge \n',ring,wedge)
end
score1
score2
for i = 1:3
n = n +1;
xr = randi([1 512],1,1);
yr = randi([1 512],1,1);
xw = randi([1 512],1,1);
yw = randi([1 512],1,1);
wedge = (wedges(xw,yw));
wedgex = wedge-(j+7);
ring = rings(xr,yr);
if wedge >14 && wedge <21
if ring == 3
m2(2:4,wedgex) = 0;
else
if m2(2,wedgex)==0 && m2(3,wedgex)==0 && m2(4,wedgex)==0
score2 = score2 + wedge*ring
else
if ring >1
if m2(1+ring,wedgex)~=0 & m2(2+ring,wedgex)~=0
m2(2:ring+1,wedgex)=0;
display(m2);
elseif m2(2:ring+1,wedgex)==0
if m2(2:ring+2,wedgex)==0
m2(2:ring+3,wedgex)=0;
display(m2);
elseif m2(ring+2,wedgex)~=0
m2(2:ring+2,wedgex)=0;
display(m2);
end
end
elseif ring ==1
if m2(2:ring+1,wedgex)~=0
m2(2:ring+1,wedgex)=0;
else
if m2(2:ring+2,wedgex)==0
m2(2:ring+3,wedgex)=0;
display(m2);
else
m2(2:ring+2,wedgex)=0;
end
end
end
end
end
if m2(2:4,wedgex) == 0
end
end
if wedge == 25
wedgex=7;
if ring == 2 || ring ==3
if m2(2,7)==0 && m2(3,7) == 0 && m2(4,7) == 0
score2 = score2 + wedge*2
end
else
score2 = score2 + 25*ring
if m2(2:ring+1,7)~=0
m2(2:ring+1,7)=0;
display(m2);
else
if m2(2:ring+2,7)~=0
m2(2:ring+2,7) = 0;
display(m2);
else
m2(2:ring+3,7) ~= 0;
m2(2:ring+3,7) = 0;
display(m2);
end
end
end
end
if wedge < 15 || ring==0
display('You did not score');
end
fprintf('The dart landed on the %d ring in the %d wedge \n',ring,wedge)
end
score1
score2
end
if score1 > score2
fprintf('Player 1 reached a higher score before player 2 could close out his board \n');
fprintf('Player 1 wins with a score of %d to % d \n',score1,score2);
else
fprintf('Player 2 closed out his board with a higher score then player 1 \n ');
fprintf('Player 2 wins with a score of %d to %d \n',score2,score1);
end
end
end
end
end

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回答（1 个）

Siyu Guo
Siyu Guo 2018-4-28
Your function call is darts(17,19), which means the wedges parameter passed into the function is the scalar 17, represented in MATLAB as a 1-by-1 matrix. Then, in line 22, you try to acccess wedges(xw,yw), where xw and yw are both random intergers in the range of [1, 512], and very likely both xw and yw are greater than 1, exceeding the size of the matrix wedges, and the error shows up.

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