going-rogue/roguebasin/geometry.py
Eryn Wells 4f6d04456c Add some basic geometry primitives
Point, Vector, Size, and Rect. These are modeled on the CoreGraphics types.
2022-04-30 21:59:33 -07:00

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1.5 KiB
Python

#!/usr/bin/env python3
# Eryn Wells <eryn@erynwells.me>
class Point:
__slots__ = ('x', 'y')
def __init__(self, x: int = 0, y: int = 0):
self.x = x
self.y = y
def __str__(self):
return f'(x:{self.x}, y:{self.y})'
def __repr__(self):
return f'Point({self.x}, {self.y})'
class Vector:
__slots__ = ('dx', 'dy')
def __init__(self, dx: int = 0, dy: int = 0):
self.dx = dx
self.dy = dy
def __str__(self):
return f'(δx:{self.x}, δy:{self.y})'
def __repr__(self):
return f'Vector({self.x}, {self.y})'
class Size:
__slots__ = ('width', 'height')
def __init__(self, width: int = 0, height: int = 0):
self.width = width
self.height = height
def __str__(self):
return f'(w:{self.width}, h:{self.height})'
def __repr__(self):
return f'Size({self.width}, {self.height})'
class Rect:
__slots__ = ('origin', 'size')
def __init__(self, x: int = 0, y: int = 0, w: int = 0, h: int = 0):
'''
Construct a new rectangle.
'''
self.origin = Point(x, y)
self.size = Size(w, h)
@property
def max_x(self) -> int:
return self.origin.x + self.size.width
@property
def max_y(self) -> int:
return self.origin.y + self.size.height
def __str__(self):
return f'({self.origin}, {self.size})'
def __repr__(self):
return f'Rect({self.origin.x}, {self.origin.y}, {self.size.width}, {self.size.height})'