115 lines
2.7 KiB
Lua
115 lines
2.7 KiB
Lua
love.graphics.setNewFont(45)
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love.keyboard.setKeyRepeat(true)
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local Circle = require("Circle")
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local circles = {}
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local spots = {}
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local notification_message = "Notification"
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local notification_transparency = 0
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local total = 3
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local speed = 5
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function love.load()
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local stencil_data = love.image.newImageData("stencil.png")
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local w, h = stencil_data:getDimensions()
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love.window.setMode(w, h)
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for x = 0, w - 1 do
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for y = 0, h - 1 do
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local r, g, b = stencil_data:getPixel(x, y)
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local brigthness = (r + g + b) / 3
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if brigthness > 0.9 then table.insert(spots, {x, y}) end
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end
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end
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end
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local function dist(x1, y1, x2, y2)
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return ((x1 - x2) ^ 2 + (y1 - y2) ^ 2) ^ 0.5
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end
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local function isInCircle(x, y)
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for _, circle in ipairs(circles) do
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local d = dist(circle.x, circle.y, x, y)
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if d < circle.r then return true end
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end
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end
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local function areCirclesOverlapping(circle1, circle2)
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local d = dist(circle1.x, circle1.y, circle2.x, circle2.y)
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if d - 2 < circle1.r + circle2.r then return true end
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end
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local function isCircleOverlapping(circle)
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for _, other_circle in ipairs(circles) do
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if other_circle ~= circle and areCirclesOverlapping(circle, other_circle) then
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return true
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end
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end
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end
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local function createCircle()
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local w, h = love.graphics.getDimensions()
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-- local x = love.math.random(0, w)
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-- local y = love.math.random(0, h)
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local index = love.math.random(1, #spots)
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local x = spots[index][1]
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local y = spots[index][2]
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if isInCircle(x, y) then return end
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return Circle:new(x, y)
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end
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local function showNotification(msg)
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notification_transparency = 1
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notification_message = msg
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end
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function love.keypressed(key)
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if key == "space" then
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showNotification("Reset")
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circles = {}
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elseif key == "e" then
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showNotification("Increase speed")
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speed = speed * 1.2
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elseif key == "q" then
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showNotification("Decrease speed")
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speed = speed * 0.8
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elseif key == "d" then
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showNotification("Increase density")
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total = total * 1.2
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elseif key == "a" then
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showNotification("Decrease density")
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total = total * 0.8
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end
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end
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function love.update(dt)
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notification_transparency = notification_transparency * dt * 59
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for _ = 1, total do
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local c = createCircle()
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if c then table.insert(circles, c) end
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end
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for _, circle in ipairs(circles) do
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if circle.growing then
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if isCircleOverlapping(circle) then circle.growing = false end
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if circle:edges() then circle.growing = false end
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end
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circle:grow(speed * dt)
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end
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end
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function love.draw()
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love.graphics.setColor(1, 1, 1)
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for _, circle in ipairs(circles) do circle:draw() end
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love.graphics.setColor(0.8, 0.1, 0.1, notification_transparency)
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love.graphics.print(notification_message, 10, 10)
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end
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