66 lines
1.8 KiB
Lua
66 lines
1.8 KiB
Lua
function mix(x, y, a)
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return x * (1 - a) + y * a
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end
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function clamp(a, x, y)
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return math.min(math.max(a, x), y)
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end
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function round(x)
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if x%1 >= 0.5 then return math.ceil(x) end
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return math.floor(x)
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end
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function sum(tbl)
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local sum = 0
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for _,v in ipairs(tbl) do
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sum = sum + v
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end
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return sum/#tbl
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end
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function shrt(num)
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return math.floor(num * 10000) / 10000
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end
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function pointInside(px,py,x,y,w,h)
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return px > x and px < x+w and py > y and py < y+h
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end
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function mouseOverBox(x,y,w,h)
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return pointInside(love.mouse.getX(), love.mouse.getY(), x, y, w, h)
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end
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function stretchto(sprite, x, y, r, sx, sy, ox, oy)
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love.graphics.draw(sprite, x, y, r, sx/sprite:getWidth(), sy/sprite:getHeight(), ox, oy)
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end
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function drawcenteredquad(sprite, quad, x, y, r, sx, sy, ox, oy)
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local sw, sh = quad:getTextureDimensions()
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love.graphics.draw(sprite, quad, x - (sw * (sx or 1))/2, y - (sh * (sy or 1))/2, r, sx, sy, (ox or 0) + sw/2, (oy or 0) + sh/2)
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end
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function drawcentered(sprite, x, y, r, sx, sy, ox, oy)
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love.graphics.draw(sprite, x - (sprite:getWidth() * (sx or 1))/2, y - (sprite:getHeight() * (sy or 1))/2, r, sx, sy, (ox or 0) + sprite:getWidth()/2, (oy or 0) + sprite:getHeight()/2)
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end
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function table.deepcopy(orig)
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local orig_type = type(orig)
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local copy
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if orig_type == 'table' then
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copy = {}
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for orig_key, orig_value in next, orig, nil do
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copy[table.deepcopy(orig_key)] = table.deepcopy(orig_value)
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end
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setmetatable(copy, table.deepcopy(getmetatable(orig)))
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else -- number, string, boolean, etc
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copy = orig
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end
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return copy
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end
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function math.sign(a)
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if a >= 0 then return 1 else return -1 end
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end
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function string.starts(str, start)
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return str:sub(1, #start) == start
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end
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function string.ends(str, ending)
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return ending == "" or str:sub(-#ending) == ending
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end |