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Made sure the bounding box coordinates stay in reasonable ranges.

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git-svn-id: svn://svn.cc65.org/cc65/trunk@4250 b7a2c559-68d2-44c3-8de9-860c34a00d81
This commit is contained in:
ol.sc
2009-09-27 22:33:12 +00:00
parent d55fb5217e
commit 72f1b11545
1 changed files with 8 additions and 4 deletions
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12
samples/mousedemo.c
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@@ -57,6 +57,10 @@ static const unsigned char MouseSprite[64] = {
#endif /* __C64__ or __C128__ */ #endif /* __C64__ or __C128__ */
#define max(a,b) (((a) > (b)) ? (a) : (b))
#define min(a,b) (((a) < (b)) ? (a) : (b))
static void CheckError (const char* S, unsigned char Error) static void CheckError (const char* S, unsigned char Error)
{ {
@@ -182,10 +186,10 @@ int main (void)
mouse_setbox (&full_box); mouse_setbox (&full_box);
} else { } else {
Jailed = 1; Jailed = 1;
small_box.minx = info.pos.x - 10; small_box.minx = max (info.pos.x - 10, full_box.minx);
small_box.miny = info.pos.y - 10; small_box.miny = max (info.pos.y - 10, full_box.miny);
small_box.maxx = info.pos.x + 10; small_box.maxx = min (info.pos.x + 10, full_box.maxx);
small_box.maxy = info.pos.y + 10; small_box.maxy = min (info.pos.y + 10, full_box.maxy);
mouse_setbox (&small_box); mouse_setbox (&small_box);
} }
ShowState (Jailed, Invisible); ShowState (Jailed, Invisible);