108 lines
2.6 KiB
Python
108 lines
2.6 KiB
Python
import curses
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import math
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from utils import CHUNK_HEIGHT, CHUNK_WIDTH, chunkx, chunky, inchunkx, inchunky, Position
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import sys
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class Map():
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"""
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A map which displays chunks and a cursor on the screen.
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Allows for user to modify chunks in an intuitive way.
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"""
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def __init__(self, width, height, chunkpool):
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self.worldx = 0
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self.worldy = 0
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self.cursorx = 0
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self.cursory = 0
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self.chunkpreload = 0
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self.chunkpool = chunkpool
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self._pad = curses.newpad(5, 5)
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self.resize(width, height)
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def draw(self):
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with self.chunkpool as pool:
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for x in range(chunkx(self.width) + 1):
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for y in range(chunky(self.height) + 1):
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chunk = pool.get(x+chunkx(self.worldx), y+chunky(self.worldy))
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if chunk:
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chunk.draw_to(x*CHUNK_WIDTH, y*CHUNK_HEIGHT, self._pad)
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else:
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self.draw_empty_to(x*CHUNK_WIDTH, y*CHUNK_HEIGHT)
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# set cursor position in world
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self._pad.move(
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self.cursory - chunky(self.worldy)*CHUNK_HEIGHT,
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self.cursorx - chunkx(self.worldx)*CHUNK_WIDTH
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)
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self._pad.noutrefresh(inchunky(self.worldy), inchunkx(self.worldx), 0, 0, self.height-1, self.width-1)
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def draw_empty_to(self, x, y):
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if curses.has_colors():
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curses.init_pair(1, curses.COLOR_WHITE, curses.COLOR_WHITE)
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for dy in range(CHUNK_HEIGHT):
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self._pad.addstr(y+dy, x, " "*CHUNK_WIDTH, curses.color_pair(1))
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else:
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for dy in range(CHUNK_HEIGHT):
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s = "."*(CHUNK_WIDTH)
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self._pad.addstr(y+dy, x, s)
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def resize(self, width, height):
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self.width = width
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self.height = height
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self._pad.resize(
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(chunky(height) + 1)*CHUNK_HEIGHT,
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(chunkx(width) + 1)*CHUNK_WIDTH + 1 # workaround for addwstr issue when drawing
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)
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with self.chunkpool as pool:
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pool.load_list(self.visible_chunk_coords())
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def visible_chunk_coords(self):
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coords = []
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xstart = chunkx(self.worldx) - self.chunkpreload
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ystart = chunky(self.worldy) - self.chunkpreload
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xend = xstart + chunkx(self.width) + 1 + 2*self.chunkpreload
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yend = ystart + chunky(self.height) + 1 + 2*self.chunkpreload
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for x in range(xstart, xend):
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for y in range(ystart, yend):
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coords.append(Position(x, y))
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return coords
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def write(self, char):
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pass
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def move_cursor(self, dx, dy):
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pass
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def scroll(self, dx, dy):
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pass
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class ChunkMap():
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"""
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A map that shows which chunks are currently loaded.
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Might show additional details too (i.e. if a chunk has been modified).
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"""
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def __init__(self, chunkpool):
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self.cpool = chunkpool
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#
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# def draw(self):
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# pass
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#
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# def resize(self, size):
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# pass
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#
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def move(self, x, y, corner):
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pass
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def toggle(self):
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pass
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