mirror of
https://github.com/Pixinn/rogue-like.git
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94 lines
3.0 KiB
Python
94 lines
3.0 KiB
Python
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# Copyright (C) 2019 Christophe Meneboeuf <christophe@xtof.info>
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#
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# This program is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program. If not, see <http://www.gnu.org/licenses/>.
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#
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from bresenham import bresenham
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from PIL import Image, ImageDraw
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import os
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SIZE_GRID = 10
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SIZE_TILE = 64
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WIDTH_WORLD = 64
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x_player = int(SIZE_GRID/2)
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y_player = int(SIZE_GRID/2)
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Im = Image.new('RGB',(SIZE_GRID*SIZE_TILE,SIZE_GRID*SIZE_TILE),(255,255,255))
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Draw = ImageDraw.Draw(Im)
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# fills a rectangle with the given color
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def fill_rect(x,y,color):
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Draw.rectangle([SIZE_TILE*x,SIZE_TILE*y,
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SIZE_TILE*x+SIZE_TILE-1,SIZE_TILE*y+SIZE_TILE-1],
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outline = (0,0,128),
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fill = color)
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if __name__=="__main__":
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rays = []
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y = 0
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for x in range(0,SIZE_GRID-1):
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rays.append(list(bresenham(x_player,y_player,x,y)))
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x = SIZE_GRID-1
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for y in range(0,SIZE_GRID-1):
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rays.append(list(bresenham(x_player,y_player,x,y)))
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y = SIZE_GRID-1
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for x in range(SIZE_GRID-1,0,-1):
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rays.append(list(bresenham(x_player,y_player,x,y)))
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x = 0
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for y in range(SIZE_GRID-1,0,-1):
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rays.append(list(bresenham(x_player,y_player,x,y)))
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# create the grid
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for x in range(0,SIZE_GRID):
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for y in range(0,SIZE_GRID):
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fill_rect(x,y,(255,255,255))
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# fill the player
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fill_rect(x_player,y_player,(0,255,0))
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# fill the rays
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nb_cells = 0
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rgb = 0
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for ray in rays:
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for tile in ray[1:]:
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fill_rect(tile[0], tile[1], (rgb,rgb,rgb))
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nb_cells += 1
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rgb += int(200 / len(rays))
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# print rays
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# [[len(ray), offset_view, offset_world]]
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# offset_world: offset in the world from the 1st tile viewed
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str_ray = "; Nb rays: {}\n".format(len(rays))
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str_ray += "; A ray: length (nb_tiles), offset_from_view_in_world_low, offset_from_view_in_world_high, offset_view\nRays:\n"
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for ray in rays:
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str_ray += ".byte " + str(len(ray)-1)
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for tile in ray[1:]:
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offset_view = tile[0] + SIZE_GRID*tile[1]
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offset_world = (tile[0] + WIDTH_WORLD*tile[1])
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offset_world_low = offset_world & 0xFF
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offset_world_high = (offset_world >> 8) & 0xFF
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str_ray += ", " + str(offset_world_low) + ", " + str(offset_world_high) + ", " + str(offset_view)
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str_ray += "\n"
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print(str_ray)
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Im.show()
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