(svn r11412) -Fix (r11403): animation was not turned on properly.

-Fix (r11410): wrong assumption about random reseeds made the whole thing reseed way too often, making the animation look very ugly.

src/industry_map.h

@@ -169,6 +169,7 @@ static inline void MakeIndustry(TileIndex t, IndustryID index, IndustryGfx gfx)
 	_m[t].m3 = 0;
 	_m[t].m4 = 0;
 	SetIndustryGfx(t, gfx);
+	_me[t].m7 = Random();
 }
 
 /**