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| author | zakk <zakk@edf5b092-35ff-0310-97b2-ce42778d08ea> | 2005-08-26 04:48:05 +0000 |
|---|---|---|
| committer | zakk <zakk@edf5b092-35ff-0310-97b2-ce42778d08ea> | 2005-08-26 04:48:05 +0000 |
| commit | 952c5c128f9efaea89d41d882c4ea3ade7df4591 (patch) | |
| tree | 91b84d9be7afad7e99ac64a640a65b6cb5081900 /lcc/tst/struct.c | |
| parent | c2c2e0d25d6cdb7d42d7dc981a863f65f94f281d (diff) | |
| download | ioquake3-aero-952c5c128f9efaea89d41d882c4ea3ade7df4591.tar.gz ioquake3-aero-952c5c128f9efaea89d41d882c4ea3ade7df4591.zip | |
Itsa me, quake3io!
git-svn-id: svn://svn.icculus.org/quake3/trunk@2 edf5b092-35ff-0310-97b2-ce42778d08ea
Diffstat (limited to 'lcc/tst/struct.c')
| -rwxr-xr-x | lcc/tst/struct.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/lcc/tst/struct.c b/lcc/tst/struct.c new file mode 100755 index 0000000..97da897 --- /dev/null +++ b/lcc/tst/struct.c @@ -0,0 +1,69 @@ +typedef struct point { int x,y; } point;
+typedef struct rect { point pt1, pt2; } rect;
+
+point addpoint(point p1, point p2) { /* add two points */
+ p1.x += p2.x;
+ p1.y += p2.y;
+ return p1;
+}
+
+#define min(a, b) ((a) < (b) ? (a) : (b))
+#define max(a, b) ((a) > (b) ? (a) : (b))
+
+rect canonrect(rect r) { /* canonicalize rectangle coordinates */
+ rect temp;
+
+ temp.pt1.x = min(r.pt1.x, r.pt2.x);
+ temp.pt1.y = min(r.pt1.y, r.pt2.y);
+ temp.pt2.x = max(r.pt1.x, r.pt2.x);
+ temp.pt2.y = max(r.pt1.y, r.pt2.y);
+ return temp;
+}
+
+point makepoint(int x, int y) { /* make a point from x and y components */
+ point p;
+
+ p.x = x;
+ p.y = y;
+ return p;
+}
+
+rect makerect(point p1, point p2) { /* make a rectangle from two points */
+ rect r;
+
+ r.pt1 = p1;
+ r.pt2 = p2;
+ return canonrect(r);
+}
+
+int ptinrect(point p, rect r) { /* is p in r? */
+ return p.x >= r.pt1.x && p.x < r.pt2.x
+ && p.y >= r.pt1.y && p.y < r.pt2.y;
+}
+
+struct odd {char a[3]; } y = {'a', 'b', 0};
+
+odd(struct odd y) {
+ struct odd x = y;
+ printf("%s\n", x.a);
+}
+
+main() {
+ int i;
+ point x, origin = { 0, 0 }, maxpt = { 320, 320 };
+ point pts[] = { -1, -1, 1, 1, 20, 300, 500, 400 };
+ rect screen = makerect(addpoint(maxpt, makepoint(-10, -10)),
+ addpoint(origin, makepoint(10, 10)));
+
+ for (i = 0; i < sizeof pts/sizeof pts[0]; i++) {
+ printf("(%d,%d) is ", pts[i].x,
+ (x = makepoint(pts[i].x, pts[i].y)).y);
+ if (ptinrect(x, screen) == 0)
+ printf("not ");
+ printf("within [%d,%d; %d,%d]\n", screen.pt1.x, screen.pt1.y,
+ screen.pt2.x, screen.pt2.y);
+ }
+ odd(y);
+ exit(0);
+}
+
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