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Fix variable naming from r to phi in shadow calculation function

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This commit is contained in:
PeaAshMeter 2026-01-04 02:23:52 +03:00
parent 03070cfff7
commit cd5c844c52
1 changed files with 16 additions and 14 deletions
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30
lib/character/behaviors/shadowcaster.lua
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@ -16,32 +16,34 @@ local function makeGradientMesh(w, h, topColor, bottomColor)
return mesh return mesh
end end
local function getFakeShadow(r) --- @param phi number угол, под которым падает свет
--- @return boolean, number: рисуем ли тень * её прозрачность
local function getFakeShadow(phi)
local pi = math.pi local pi = math.pi
if r <= pi / 4 then if phi <= pi / 4 then
-- 1 -- 1
return false, 1 return false, 1
end end
if r <= pi / 2 then if phi <= pi / 2 then
-- 2 -- 2
return true, 1 - (r - pi / 4) / (pi / 4) return true, 1 - (phi - pi / 4) / (pi / 4)
end end
if r <= 3 * pi / 4 then if phi <= 3 * pi / 4 then
-- 3 -- 3
return true, (r - pi / 2) / (pi / 4) return true, (phi - pi / 2) / (pi / 4)
end end
if r <= 5 * pi / 4 then if phi <= 5 * pi / 4 then
-- 4 -- 4
return false, 1 return false, 1
end end
if r <= 3 * pi / 2 then if phi <= 3 * pi / 2 then
-- 5 -- 5
return true, 1 - (r - 5 * pi / 4) / (pi / 4) return true, 1 - (phi - 5 * pi / 4) / (pi / 4)
end end
if r <= 7 * pi / 4 then if phi <= 7 * pi / 4 then
-- 6 -- 6
return true, (r - 3 * pi / 2) / (pi / 4) return true, (phi - 3 * pi / 2) / (pi / 4)
end end
-- 1 -- 1
return false, 1 return false, 1
@ -67,10 +69,10 @@ function behavior:draw()
return return
end end
local r = love.timer.getTime() % (2 * math.pi) local phi = love.timer.getTime() % (2 * math.pi)
local drawFakeShadow, opacity = getFakeShadow(r) local drawFakeShadow, opacity = getFakeShadow(phi)
local nangle = (math.pi + r) % (2 * math.pi) local nangle = (math.pi + phi) % (2 * math.pi)
love.graphics.rotate(nangle) love.graphics.rotate(nangle)
love.graphics.setColor(0, 0, 0, math.min(opacity * opacity, 0.5)) love.graphics.setColor(0, 0, 0, math.min(opacity * opacity, 0.5))