272 lines
9.6 KiB
Python
272 lines
9.6 KiB
Python
from __future__ import annotations
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from .coordinate import Coordinate, DistanceAlgorithm
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from .types import Numeric
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from enum import Enum
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from heapq import heappop, heappush
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from typing import Any, Dict, List, Union
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OFF = False
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ON = True
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class GridTransformation(Enum):
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# Rotations always take the axis to rotate around as if it were the z-axis and then rotate clockwise
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# Counter-Rotations likewise, just anti-clockwise
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# 3D-only OPs have a number > 10
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ROTATE_Z = 3
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ROTATE_X = 11
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ROTATE_Y = 12
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COUNTER_ROTATE_X = 14
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COUNTER_ROTATE_Y = 15
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COUNTER_ROTATE_Z = 7
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FLIP_X = 4
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FLIP_Y = 5
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FLIP_Z = 13
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# Handy aliases
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FLIP_HORIZONTALLY = 5
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FLIP_VERTICALLY = 4
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ROTATE_RIGHT = 3
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ROTATE_LEFT = 7
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class Grid:
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def __init__(self, default=False):
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self.__default = default
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self.__grid = {}
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self.minX = 0
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self.minY = 0
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self.maxX = 0
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self.maxY = 0
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self.minZ = 0
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self.maxZ = 0
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self.mode3D = False
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def __trackBoundaries(self, pos: Coordinate):
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self.minX = min(pos.x, self.minX)
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self.minY = min(pos.y, self.minY)
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self.maxX = max(pos.x, self.maxX)
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self.maxY = max(pos.y, self.maxY)
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if self.mode3D:
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self.minZ = min(pos.z, self.minZ)
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self.maxZ = max(pos.z, self.maxZ)
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def rangeX(self):
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return range(self.minX, self.maxX + 1)
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def rangeY(self):
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return range(self.minY, self.maxY + 1)
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def rangeZ(self):
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return range(self.minZ, self.maxZ + 1)
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def toggle(self, pos: Coordinate):
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if pos in self.__grid:
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del self.__grid[pos]
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else:
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self.__trackBoundaries(pos)
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self.__grid[pos] = not self.__default
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def set(self, pos: Coordinate, value: Any = True) -> Any:
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if pos.z is not None:
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self.mode3D = True
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if (value == self.__default) and pos in self.__grid:
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del self.__grid[pos]
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elif value != self.__default:
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self.__trackBoundaries(pos)
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self.__grid[pos] = value
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return value
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def add(self, pos: Coordinate, value: Numeric = 1) -> Numeric:
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return self.set(pos, self.get(pos) + value)
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def sub(self, pos: Coordinate, value: Numeric = 1) -> Numeric:
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return self.set(pos, self.get(pos) - value)
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def mul(self, pos: Coordinate, value: Numeric = 1) -> Numeric:
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return self.set(pos, self.get(pos) * value)
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def div(self, pos: Coordinate, value: Numeric = 1) -> Numeric:
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return self.set(pos, self.get(pos) / value)
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def get(self, pos: Coordinate) -> Any:
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return self.__grid.get(pos, self.__default)
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def getOnCount(self) -> int:
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return len(self.__grid)
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def isSet(self, pos: Coordinate) -> bool:
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return pos in self.__grid
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def getCorners(self) -> List[Coordinate]:
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if not self.mode3D:
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return [
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Coordinate(self.minX, self.minY),
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Coordinate(self.minX, self.maxY),
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Coordinate(self.maxX, self.minY),
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Coordinate(self.maxX, self.maxY),
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]
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else:
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return [
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Coordinate(self.minX, self.minY, self.minZ),
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Coordinate(self.minX, self.minY, self.maxZ),
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Coordinate(self.minX, self.maxY, self.minZ),
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Coordinate(self.minX, self.maxY, self.maxZ),
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Coordinate(self.maxX, self.minY, self.minZ),
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Coordinate(self.maxX, self.minY, self.maxZ),
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Coordinate(self.maxX, self.maxY, self.minZ),
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Coordinate(self.maxX, self.maxY, self.maxZ),
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]
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def isCorner(self, pos: Coordinate) -> bool:
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return pos in self.getCorners()
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def isWithinBoundaries(self, pos: Coordinate) -> bool:
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if self.mode3D:
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return self.minX <= pos.x <= self.maxX and self.minY <= pos.y <= self.maxY \
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and self.minZ <= pos.z <= self.maxZ
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else:
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return self.minX <= pos.x <= self.maxX and self.minY <= pos.y <= self.maxY
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def getActiveCells(self, x: int = None, y: int = None) -> List[Coordinate]:
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if x:
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return [c for c in self.__grid.keys() if c.x == x]
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elif y:
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return [c for c in self.__grid.keys() if c.y == y]
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else:
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return list(self.__grid.keys())
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def getSum(self, includeNegative: bool = True) -> Numeric:
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grid_sum = 0
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for value in self.__grid.values():
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if includeNegative or value > 0:
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grid_sum += value
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return grid_sum
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def getNeighboursOf(self, pos: Coordinate, includeDefault: bool = False, includeDiagonal: bool = True) \
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-> List[Coordinate]:
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neighbours = pos.getNeighbours(
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includeDiagonal=includeDiagonal,
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minX=self.minX, minY=self.minY, minZ=self.minZ,
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maxX=self.maxX, maxY=self.maxY, maxZ=self.maxZ
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)
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if includeDefault:
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return neighbours
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else:
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return [x for x in neighbours if x in self.__grid]
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def getNeighbourSum(self, pos: Coordinate, includeNegative: bool = True, includeDiagonal: bool = True) -> Numeric:
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neighbour_sum = 0
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for neighbour in self.getNeighboursOf(pos, includeDefault=includeDiagonal):
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if includeNegative or self.get(neighbour) > 0:
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neighbour_sum += self.get(neighbour)
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return neighbour_sum
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def flip(self, c1: Coordinate, c2: Coordinate):
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buf = self.get(c1)
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self.set(c1, self.get(c2))
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self.set(c2, buf)
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def transform(self, mode: GridTransformation):
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if mode.value > 10 and not self.mode3D:
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raise ValueError("Operation not possible in 2D space", mode)
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coords = self.__grid
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self.__grid, self.minX, self.maxX, self.minY, self.maxY, self.minZ, self.maxZ = {}, 0, 0, 0, 0, 0, 0
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if mode == GridTransformation.ROTATE_X:
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for c, v in coords.items():
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self.set(Coordinate(c.x, -c.z, c.y), v)
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elif mode == GridTransformation.ROTATE_Y:
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for c, v in coords.items():
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self.set(Coordinate(-c.z, c.y, c.x), v)
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elif mode == GridTransformation.ROTATE_Z:
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for c, v in coords.items():
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self.set(Coordinate(c.y, -c.x, c.z), v)
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elif mode == GridTransformation.COUNTER_ROTATE_X:
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for c, v in coords.items():
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self.set(Coordinate(c.x, c.z, -c.y), v)
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elif mode == GridTransformation.COUNTER_ROTATE_Y:
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for c, v in coords.items():
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self.set(Coordinate(c.z, c.y, -c.x), v)
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elif mode == GridTransformation.COUNTER_ROTATE_Z:
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for c, v in coords.items():
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self.set(Coordinate(-c.y, c.x, c.z), v)
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elif mode == GridTransformation.FLIP_X:
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for c, v in coords.items():
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self.set(Coordinate(-c.x, c.y, c.z), v)
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elif mode == GridTransformation.FLIP_Y:
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for c, v in coords.items():
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self.set(Coordinate(c.x, -c.y, c.z), v)
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elif mode == GridTransformation.FLIP_Z:
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for c, v in coords.items():
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self.set(Coordinate(c.x, c.y, -c.z), v)
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else:
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raise NotImplementedError(mode)
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def getPath(self, pos_from: Coordinate, pos_to: Coordinate, includeDiagonal: bool, walls: List[Any] = None,
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weighted: bool = False) -> Union[None, List[Coordinate]]:
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f_costs = []
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if walls is None:
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walls = [self.__default]
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openNodes: Dict[Coordinate, tuple] = {}
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closedNodes: Dict[Coordinate, tuple] = {}
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openNodes[pos_from] = (0, pos_from.getDistanceTo(pos_to), None)
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heappush(f_costs, (0, pos_from))
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while f_costs:
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_, currentCoord = heappop(f_costs)
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if currentCoord not in openNodes:
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continue
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currentNode = openNodes[currentCoord]
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closedNodes[currentCoord] = currentNode
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del openNodes[currentCoord]
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if currentCoord == pos_to:
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break
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for neighbour in self.getNeighboursOf(currentCoord, True, includeDiagonal):
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if self.get(neighbour) in walls or neighbour in closedNodes:
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continue
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if weighted:
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neighbourDist = self.get(neighbour)
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elif not includeDiagonal:
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neighbourDist = 1
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else:
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neighbourDist = currentCoord.getDistanceTo(neighbour, DistanceAlgorithm.MANHATTAN, includeDiagonal)
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targetDist = neighbour.getDistanceTo(pos_to)
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f_cost = targetDist + neighbourDist + currentNode[1]
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if neighbour not in openNodes or f_cost < openNodes[neighbour][0]:
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openNodes[neighbour] = (f_cost, currentNode[1] + neighbourDist, currentCoord)
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heappush(f_costs, (f_cost, neighbour))
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if pos_to not in closedNodes:
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return None
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else:
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currentNode = closedNodes[pos_to]
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pathCoords = [pos_to]
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while currentNode[2]:
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pathCoords.append(currentNode[2])
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currentNode = closedNodes[currentNode[2]]
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return pathCoords
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def print(self, spacer: str = "", true_char: str = None):
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for y in range(self.minY, self.maxY + 1):
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for x in range(self.minX, self.maxX + 1):
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if true_char:
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print(true_char if self.get(Coordinate(x, y)) else " ", end="")
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else:
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print(self.get(Coordinate(x, y)), end="")
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print(spacer, end="")
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print()
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