Created
July 16, 2011 12:43
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def flood(self, x, y, old, new): | |
seed_pos = (x, y) | |
if old == new: | |
return | |
stack = [] | |
w, h = MAP_W, MAP_H | |
max_x = max_y = 0 | |
min_x = w | |
min_y = h | |
stack.append(seed_pos) | |
iterations = 0 | |
while(stack): | |
iterations += 1 | |
x, y = stack.pop() | |
y1 = y | |
while y1 >= 0 and self.gamemap[x][y1].fval == old: | |
y1 -= 1 | |
y1 += 1 | |
spanLeft = spanRight = False | |
inner_iterations = 0 | |
while(y1 < h and self.gamemap[x][y1].fval == old): | |
inner_iterations += 1 | |
self.gamemap[x][y1].fval = new | |
min_x = min(min_x, x) | |
max_x = max(max_x, x) | |
min_y = min(min_y, y1) | |
max_y = max(max_y, y1) | |
if not spanLeft and x > 0 and self.gamemap[x - 1]\ | |
[y1].fval == old: | |
stack.append((x - 1, y1)) | |
spanLeft = True | |
elif spanLeft and x > 0 and self.gamemap[x - 1]\ | |
[y1].fval != old: | |
spanLeft = False | |
if not spanRight and x < w - 1 and self.gamemap[x + 1]\ | |
[y1].fval == old: | |
stack.append((x + 1, y1)) | |
spanRight = True | |
elif spanRight and x < w - 1 and self.gamemap\ | |
[x + 1][y1].fval != old: | |
spanRight = False | |
y1 += 1 |
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