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fix a crash in Screen when read or paint tile indices are negative

develop
Myk Taylor 2023-01-10 19:05:04 -08:00
parent 1cf4604e6c
commit 353117d484
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1 changed files with 2 additions and 2 deletions
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4
library/modules/Screen.cpp
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@ -208,7 +208,7 @@ static bool doSetTile(const Pen &pen, int x, int y, bool map)
bool Screen::paintTile(const Pen &pen, int x, int y, bool map)
{
if (!gps || !pen.valid()) return false;
if (!gps || !pen.valid() || x < 0 || y < 0) return false;
doSetTile(pen, x, y, map);
return true;
@ -301,7 +301,7 @@ static Pen doGetTile(int x, int y, bool map)
Pen Screen::readTile(int x, int y, bool map)
{
if (!gps) return Pen(0,0,0,-1);
if (!gps || x < 0 || y < 0) return Pen(0,0,0,-1);
return doGetTile(x, y, map);
}