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Now _this_ is what Undo ought to be doing in a Minesweeper clone.
[sgt/puzzles]
/
netslide.c
diff --git
a/netslide.c
b/netslide.c
index
b81a816
..
86efb2f
100644
(file)
--- a/
netslide.c
+++ b/
netslide.c
@@
-13,8
+13,6
@@
#include "puzzles.h"
#include "tree234.h"
-#define PI 3.141592653589793238462643383279502884197169399
-
#define MATMUL(xr,yr,m,x,y) do { \
float rx, ry, xx = (x), yy = (y), *mat = (m); \
rx = mat[0] * xx + mat[2] * yy; \