Refactoring:
replace asSet copy by asNewSet (same for IdentitySet)
replace (xxx collect:[]) asSet by (xxx collect:[] as:Set)
replace (xxx select:[]) asSet by (xxx select:[] as:Set)
#define b_moveLeft_width 16
#define b_moveLeft_height 16
static unsigned char b_moveLeft_bits[] = {
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02,
0x00, 0x03, 0x80, 0x03, 0xc0, 0x03, 0x80, 0x03, 0x00, 0x03, 0x00, 0x02,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};