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Merge branch 'lighting' into 'master' 

Lighting

Closes #27

See merge request ynerant/squirrel-battle!34
This commit is contained in:
ynerant 2021-01-08 02:01:13 +01:00
parent 00a4dec6a4 478a655751
commit da47731faf
8 changed files with 260 additions and 25 deletions
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1
.gitignore vendored
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@ -3,6 +3,7 @@
env/
venv/
local/
.coverage
.pytest_cache/

41
squirrelbattle/assets/example_map_3.txt Normal file
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@ -0,0 +1,41 @@
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19
squirrelbattle/display/mapdisplay.py
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@ -22,16 +22,21 @@ class MapDisplay(Display):
self.pack.tile_width * self.map.width + 1)
def update_pad(self) -> None:
self.pad.resize(500, 500)
for i in range(self.map.height):
for j in range(self.map.width):
self.addstr(self.pad, i, j * self.pack.tile_width,
self.map.tiles[i][j].char(self.pack),
*self.map.tiles[i][j].color(self.pack))
for j in range(len(self.map.tiles)):
for i in range(len(self.map.tiles[j])):
if not self.map.seen_tiles[j][i]:
continue
fg, bg = self.map.tiles[j][i].visible_color(self.pack) if \
self.map.visibility[j][i] else \
self.map.tiles[j][i].hidden_color(self.pack)
self.addstr(self.pad, j, self.pack.tile_width * i,
self.map.tiles[j][i].char(self.pack), fg, bg)
for e in self.map.entities:
if self.map.visibility[e.y][e.x]:
self.addstr(self.pad, e.y, self.pack.tile_width * e.x,
self.pack[e.name.upper()],
self.pack.entity_fg_color, self.pack.entity_bg_color)
self.pack.entity_fg_color,
self.pack.entity_bg_color)
# Display Path map for debug purposes
# from squirrelbattle.entities.player import Player

22
squirrelbattle/display/texturepack.py
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@ -2,7 +2,7 @@
# SPDX-License-Identifier: GPL-3.0-or-later
import curses
from typing import Any
from typing import Any, Union, Tuple
class TexturePack:
@ -13,10 +13,11 @@ class TexturePack:
name: str
tile_width: int
tile_fg_color: int
tile_bg_color: int
entity_fg_color: int
entity_bg_color: int
tile_fg_color: Union[int, Tuple[int, int, int]]
tile_fg_visible_color: Union[int, Tuple[int, int, int]]
tile_bg_color: Union[int, Tuple[int, int, int]]
entity_fg_color: Union[int, Tuple[int, int, int]]
entity_bg_color: Union[int, Tuple[int, int, int]]
BODY_SNATCH_POTION: str
BOMB: str
@ -58,9 +59,10 @@ class TexturePack:
TexturePack.ASCII_PACK = TexturePack(
name="ascii",
tile_width=1,
tile_fg_visible_color=(1000, 1000, 1000),
tile_fg_color=curses.COLOR_WHITE,
tile_bg_color=curses.COLOR_BLACK,
entity_fg_color=curses.COLOR_WHITE,
entity_fg_color=(1000, 1000, 1000),
entity_bg_color=curses.COLOR_BLACK,
BODY_SNATCH_POTION='S',
@ -86,17 +88,19 @@ TexturePack.ASCII_PACK = TexturePack(
TexturePack.SQUIRREL_PACK = TexturePack(
name="squirrel",
tile_width=2,
tile_fg_visible_color=(1000, 1000, 1000),
tile_fg_color=curses.COLOR_WHITE,
tile_bg_color=curses.COLOR_BLACK,
entity_fg_color=curses.COLOR_WHITE,
entity_bg_color=curses.COLOR_WHITE,
entity_fg_color=(1000, 1000, 1000),
entity_bg_color=(1000, 1000, 1000),
BODY_SNATCH_POTION='🔀',
BOMB='💣',
EMPTY=' ',
EXPLOSION='💥',
FLOOR='██',
LADDER=('🪜', curses.COLOR_WHITE, curses.COLOR_WHITE),
LADDER=('🪜', curses.COLOR_WHITE, (1000, 1000, 1000),
curses.COLOR_WHITE, (1000, 1000, 1000)),
HAZELNUT='🌰',
HEART='💜',
HEDGEHOG='🦔',

4
squirrelbattle/entities/player.py
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@ -17,7 +17,7 @@ class Player(InventoryHolder, FightingEntity):
strength: int = 5, intelligence: int = 1, charisma: int = 1,
dexterity: int = 1, constitution: int = 1, level: int = 1,
current_xp: int = 0, max_xp: int = 10, inventory: list = None,
hazel: int = 42, *args, **kwargs) \
hazel: int = 42, vision: int = 5, *args, **kwargs) \
-> None:
super().__init__(name=name, maxhealth=maxhealth, strength=strength,
intelligence=intelligence, charisma=charisma,
@ -28,6 +28,7 @@ class Player(InventoryHolder, FightingEntity):
self.inventory = self.translate_inventory(inventory or [])
self.paths = dict()
self.hazel = hazel
self.vision = vision
def move(self, y: int, x: int) -> None:
"""
@ -38,6 +39,7 @@ class Player(InventoryHolder, FightingEntity):
self.map.currenty = y
self.map.currentx = x
self.recalculate_paths()
self.map.compute_visibility(self.y, self.x, self.vision)
def level_up(self) -> None:
"""

172
squirrelbattle/interfaces.py
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@ -2,7 +2,7 @@
# SPDX-License-Identifier: GPL-3.0-or-later
from enum import Enum, auto
from math import sqrt
from math import ceil, sqrt
from random import choice, randint
from typing import List, Optional, Any, Dict, Tuple
from queue import PriorityQueue
@ -32,6 +32,34 @@ class Logs:
self.messages = []
class Slope():
X: int
Y: int
def __init__(self, y: int, x: int) -> None:
self.Y = y
self.X = x
def compare(self, other: "Slope") -> int:
y, x = other.Y, other.X
return self.Y * x - self.X * y
def __lt__(self, other: "Slope") -> bool:
return self.compare(other) < 0
def __eq__(self, other: "Slope") -> bool:
return self.compare(other) == 0
def __gt__(self, other: "Slope") -> bool:
return self.compare(other) > 0
def __le__(self, other: "Slope") -> bool:
return self.compare(other) <= 0
def __ge__(self, other: "Slope") -> bool:
return self.compare(other) >= 0
class Map:
"""
The Map object represents a with its width, height
@ -43,6 +71,8 @@ class Map:
start_y: int
start_x: int
tiles: List[List["Tile"]]
visibility: List[List[bool]]
seen_tiles: List[List[bool]]
entities: List["Entity"]
logs: Logs
# coordinates of the point that should be
@ -58,6 +88,10 @@ class Map:
self.start_y = start_y
self.start_x = start_x
self.tiles = tiles
self.visibility = [[False for _ in range(len(tiles[0]))]
for _ in range(len(tiles))]
self.seen_tiles = [[False for _ in range(len(tiles[0]))]
for _ in range(len(tiles))]
self.entities = []
self.logs = Logs()
@ -147,7 +181,8 @@ class Map:
"""
Puts randomly {count} entities on the map, only on empty ground tiles.
"""
for ignored in range(count):
for _ignored in range(count):
y, x = 0, 0
while True:
y, x = randint(0, self.height - 1), randint(0, self.width - 1)
tile = self.tiles[y][x]
@ -157,6 +192,126 @@ class Map:
entity.move(y, x)
self.add_entity(entity)
def compute_visibility(self, y: int, x: int, max_range: int) -> None:
"""
Sets the visible tiles to be the ones visible by an entity at point
(y, x), using a twaked shadow casting algorithm
"""
for line in self.visibility:
for i in range(len(line)):
line[i] = False
self.set_visible(0, 0, 0, (y, x))
for octant in range(8):
self.compute_visibility_octant(octant, (y, x), max_range, 1,
Slope(1, 1), Slope(0, 1))
def crop_top_visibility(self, octant: int, origin: Tuple[int, int],
x: int, top: Slope) -> int:
if top.X == 1:
top_y = x
else:
top_y = ceil(((x * 2 - 1) * top.Y + top.X) / (top.X * 2))
if self.is_wall(top_y, x, octant, origin):
top_y += top >= Slope(top_y * 2 + 1, x * 2) and not \
self.is_wall(top_y + 1, x, octant, origin)
else:
ax = x * 2
ax += self.is_wall(top_y + 1, x + 1, octant, origin)
top_y += top > Slope(top_y * 2 + 1, ax)
return top_y
def crop_bottom_visibility(self, octant: int, origin: Tuple[int, int],
x: int, bottom: Slope) -> int:
if bottom.Y == 0:
bottom_y = 0
else:
bottom_y = ceil(((x * 2 - 1) * bottom.Y + bottom.X)
/ (bottom.X * 2))
bottom_y += bottom >= Slope(bottom_y * 2 + 1, x * 2) and \
self.is_wall(bottom_y, x, octant, origin) and \
not self.is_wall(bottom_y + 1, x, octant, origin)
return bottom_y
def compute_visibility_octant(self, octant: int, origin: Tuple[int, int],
max_range: int, distance: int, top: Slope,
bottom: Slope) -> None:
for x in range(distance, max_range + 1):
top_y = self.crop_top_visibility(octant, origin, x, top)
bottom_y = self.crop_bottom_visibility(octant, origin, x, bottom)
was_opaque = -1
for y in range(top_y, bottom_y - 1, -1):
if x + y > max_range:
continue
is_opaque = self.is_wall(y, x, octant, origin)
is_visible = is_opaque\
or ((y != top_y or top > Slope(y * 4 - 1, x * 4 + 1))
and (y != bottom_y
or bottom < Slope(y * 4 + 1, x * 4 - 1)))
# is_visible = is_opaque\
# or ((y != top_y or top >= Slope(y, x))
# and (y != bottom_y or bottom <= Slope(y, x)))
if is_visible:
self.set_visible(y, x, octant, origin)
if x == max_range:
continue
if is_opaque and was_opaque == 0:
nx, ny = x * 2, y * 2 + 1
nx -= self.is_wall(y + 1, x, octant, origin)
if top > Slope(ny, nx):
if y == bottom_y:
bottom = Slope(ny, nx)
break
else:
self.compute_visibility_octant(
octant, origin, max_range, x + 1, top,
Slope(ny, nx))
elif y == bottom_y: # pragma: no cover
return
elif not is_opaque and was_opaque == 1:
nx, ny = x * 2, y * 2 + 1
nx += self.is_wall(y + 1, x + 1, octant, origin)
if bottom >= Slope(ny, nx): # pragma: no cover
return
top = Slope(ny, nx)
was_opaque = is_opaque
if was_opaque != 0:
break
@staticmethod
def translate_coord(y: int, x: int, octant: int,
origin: Tuple[int, int]) -> Tuple[int, int]:
ny, nx = origin
if octant == 0:
return ny - y, nx + x
elif octant == 1:
return ny - x, nx + y
elif octant == 2:
return ny - x, nx - y
elif octant == 3:
return ny - y, nx - x
elif octant == 4:
return ny + y, nx - x
elif octant == 5:
return ny + x, nx - y
elif octant == 6:
return ny + x, nx + y
elif octant == 7:
return ny + y, nx + x
def is_wall(self, y: int, x: int, octant: int,
origin: Tuple[int, int]) -> bool:
y, x = self.translate_coord(y, x, octant, origin)
return 0 <= y < len(self.tiles) and 0 <= x < len(self.tiles[0]) and \
self.tiles[y][x].is_wall()
def set_visible(self, y: int, x: int, octant: int,
origin: Tuple[int, int]) -> None:
y, x = self.translate_coord(y, x, octant, origin)
if 0 <= y < len(self.tiles) and 0 <= x < len(self.tiles[0]):
self.visibility[y][x] = True
self.seen_tiles[y][x] = True
def tick(self, p: Any) -> None:
"""
Triggers all entity events.
@ -228,12 +383,21 @@ class Tile(Enum):
val = getattr(pack, self.name)
return val[0] if isinstance(val, tuple) else val
def color(self, pack: TexturePack) -> Tuple[int, int]:
def visible_color(self, pack: TexturePack) -> Tuple[int, int]:
"""
Retrieve the tuple (fg_color, bg_color) of the current Tile
if it is visible.
"""
val = getattr(pack, self.name)
return (val[2], val[4]) if isinstance(val, tuple) else \
(pack.tile_fg_visible_color, pack.tile_bg_color)
def hidden_color(self, pack: TexturePack) -> Tuple[int, int]:
"""
Retrieve the tuple (fg_color, bg_color) of the current Tile.
"""
val = getattr(pack, self.name)
return (val[1], val[2]) if isinstance(val, tuple) else \
return (val[1], val[3]) if isinstance(val, tuple) else \
(pack.tile_fg_color, pack.tile_bg_color)
def is_wall(self) -> bool:

2
squirrelbattle/tests/entities_test.py
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@ -175,7 +175,7 @@ class TestEntities(unittest.TestCase):
self.assertEqual(item.y, 42)
self.assertEqual(item.x, 42)
# Wait for the explosion
for ignored in range(5):
for _ignored in range(5):
item.act(self.map)
self.assertTrue(hedgehog.dead)
self.assertTrue(teddy_bear.dead)

20
squirrelbattle/tests/interfaces_test.py
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@ -4,7 +4,7 @@
import unittest
from squirrelbattle.display.texturepack import TexturePack
from squirrelbattle.interfaces import Map, Tile
from squirrelbattle.interfaces import Map, Tile, Slope
from squirrelbattle.resources import ResourceManager
@ -37,3 +37,21 @@ class TestInterfaces(unittest.TestCase):
self.assertFalse(Tile.WALL.can_walk())
self.assertFalse(Tile.EMPTY.can_walk())
self.assertRaises(ValueError, Tile.from_ascii_char, 'unknown')
def test_slope(self) -> None:
"""
Test good behaviour of slopes (basically vectors, compared according to
the determinant)
"""
a = Slope(1, 1)
b = Slope(0, 1)
self.assertTrue(b < a)
self.assertTrue(b <= a)
self.assertTrue(a <= a)
self.assertTrue(a == a)
self.assertTrue(a > b)
self.assertTrue(a >= b)
# def test_visibility(self) -> None:
# m = Map.load(ResourceManager.get_asset_path("example_map_3.txt"))
# m.compute_visibility(1, 1, 50)