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import curses
class FieldPad:
def __init__(self, size=(1,1), charSize=1, colours=False):
self.pad = curses.newpad(size[1]+1, (size[0]+1)*charSize)
self.size = size
self.charSize = charSize
self.center = (0, 0)
self.colours = colours
self.changed = False
self.lastView = None
def resize(self, width, height):
self.size = (width, height)
self.pad.resize(height+1, width*self.charSize+1)
def changeCell(self, x, y, char, colour=None, bgcolour=0):
if colour != None and self.colours:
self.pad.addstr(y, x*self.charSize, char, self.colours.get(colour, bgcolour))
else:
self.pad.addstr(y, x*self.charSize, char)
self.changed = True
def setCenter(self, pos):
self.center = pos
def getWidth(self):
return self.size[0]*self.charSize
def getHeight(self):
return self.size[1]
def update(self, screen, x, y, xmax, ymax):
if not self.changed and (x, y, xmax, ymax) == self.lastView or xmax <= x or ymax <= y:
return
self.lastView = (x, y, xmax, ymax)
self.changed = False
width = xmax-x
height = ymax-y
self.pad.noutrefresh(
max(0, min(self.getHeight()-height, self.center[1] - int(height/2))),
max(0, min(self.getWidth()-width, self.center[0]*self.charSize - int(width/2))),
y,
x,
ymax-1,
xmax-1)
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