func displayPickUpChoice() []entity.ID {
var str *C.char
C.clear()
C.move(0, 0)
str = C.CString("Pick up what?\n")
C.addstr(str)
C.free(unsafe.Pointer(str))
px, py := currentLevel.EntityLocation(player.EntityID())
itemsAvailable := currentLevel.ItemsAt(px, py)
for i, eid := range itemsAvailable {
C.addch(C.chtype(inventoryChar(byte(i))))
str = C.CString(" - ")
C.addstr(str)
C.free(unsafe.Pointer(str))
str = C.CString(currentLevel.EntityByID(eid).EntityName())
C.addstr(str)
C.free(unsafe.Pointer(str))
}
itemsChosen := make([]bool, len(itemsAvailable))
for {
ch := C.getch()
if ch == C.KEY_ENTER || ch == ' ' || ch == '\n' {
break
}
if ch > C.int(255) {
continue
}
if i := inventoryIndex(byte(ch)); (int(i) < len(itemsChosen)) &&
(i != 255) {
if itemsChosen[i] {
itemsChosen[i] = false
C.mvaddch(C.int(i+1), 2, C.chtype('-'))
} else {
itemsChosen[i] = true
C.mvaddch(C.int(i+1), 2, C.chtype('+'))
}
}
}
result := make([]entity.ID, 0, len(itemsAvailable))
for i, v := range itemsChosen {
if v {
result = append(result, itemsAvailable[i])
}
}
return result
}
func drawSymbol(x, y int, s symbol.Symbol) {
cx, cy := C.int(x), C.int(y)
switch s {
case symbol.Blank:
C.mvaddch(cy, cx, ' ')
case symbol.Floor:
C.mvaddch(cy, cx, '.')
case symbol.HWall:
C.mvaddch(cy, cx, '-')
case symbol.VWall:
C.mvaddch(cy, cx, '|')
case symbol.Rock:
C.mvaddch(cy, cx, '#')
case symbol.Player:
C.mvaddch(cy, cx, '@')
case symbol.Stone:
C.mvaddch(cy, cx, '*')
default:
C.mvaddch(cy, cx, '\000')
}
}
func Mvaddch(y, x int, ch rune) {
C.mvaddch(C.int(y), C.int(x), C.chtype(ch))
}