local RESISTENCE = 0.99
local SPEED = 100

local hotspots = {}

function generate_hotspots (nr, mindist)
	local mindist = mindist * mindist
	while nr>0 do
		local x, y = 50+math.random(700), 50+math.random(500)
		for _, o_spot in ipairs(hotspots) do
			if math.pow(o_spot.x-x, 2) + math.pow(o_spot.y-y, 2) < mindist then
				x = 0
			end
		end
		if x ~= 0 then
			table.insert(hotspots, {x=x, y=y})
			nr = nr - 1
		end
	end
end

local player = {
	x = 400,
	y = 300,
	dx = 0,
	dy = 0,

	fisk = 0
}

local hint = {
	text = "Move with WASD\nFish with SPACEBAR",
	time = 10,
}

function update_player (dt)
	local ddy = love.keyboard.isDown("w") and -1 or love.keyboard.isDown("s") and 1 or 0
	local ddx = love.keyboard.isDown("a") and -1 or love.keyboard.isDown("d") and 1 or 0

	if ddx ~= 0 and ddy ~= 0 then
		ddx, ddy = ddx*math.sqrt(2), ddy*math.sqrt(2)
	end

	player.dx, player.dy = player.dx*RESISTENCE + SPEED*ddx*dt, player.dy*RESISTENCE + SPEED*ddy*dt

	player.x, player.y = player.x + player.dx * dt, player.y + player.dy * dt

	if player.rocket then
		player.rocket = player.rocket - dt * 500
	end
end

function draw_player (x,y)
	local py = player.rocket and y + math.min(0, player.rocket) or y
	local PLAYER_POLY = {
		x-30, py+20,
		x+20, py+20,
		x+30, py,
		x+10, py,
		x+10, py-20,
		x,    py-20,
		x,    py,
		x-30, py,
	}
	love.graphics.polygon('fill', PLAYER_POLY)

	if player.rocket then
		local ROCKET_POLY = {
			x,    y+20-30 + player.rocket,
			x-10, y+20-10 + player.rocket,
			x-20, y+20+40 + player.rocket,
			x-5,  y+20+20 + player.rocket,
			x-2,  y+20+30 + player.rocket,
			x+2,  y+20+37 + player.rocket,
			x+5,  y+20+20 + player.rocket,
			x+20, y+20+40 + player.rocket,
			x+10, y+20-10 + player.rocket,
		}
		love.graphics.polygon('fill', ROCKET_POLY)
	end
end

generate_hotspots(5, 100)
love.graphics.setBackgroundColor(100/256, 100/256, 200/256)

function love.update (dt)
	update_player(dt)
	hint.time = hint.time - dt
	if hint.time <= 0 and hint.func then
		hint.func()
	end
	if not hint.active then
		for index, spot in ipairs(hotspots) do
			if math.pow(spot.x-player.x, 2) + math.pow(spot.y-player.y, 2) < 50 then
				hint = {text="Woo, wee! You're close to a FISH!", time=0.1, target = index}
			end
		end
	end
end

local function activate_rocket_3 ()
	require "main2"
end

local function activate_rocket_2 ()
	hint = {text="", time=5, func=activate_rocket_3}
	player.rocket = 500
end

function love.keypressed (key)
	if key == "space" and not hint.target and hint.time <= 0 then
		hint = {text="You try to FISH, but there's no FISH", time=1}
	elseif key == "space" and hint.target and not hint.active then
		hint.text = "FISH! FISH!"
		hint.active = 10
		hint.time = 10
		player.dx, player.dy = 0, 0
	elseif key == "space" and hint.target and hint.active then
		hint.active = hint.active - 1
		if hint.active <= 0 then
			table.remove(hotspots, hint.target)
			hint = {text="Fuck yeah! You've got a FISH!", time=5}
			player.fisk = player.fisk + 1
			if #hotspots == 0 then
				hint = {text="Fucking fuck yeah! You've got ALL of the FISH!\nBut what now? O_o", time=5, func=activate_rocket_2}
			end
		end
	end
end

function love.draw ()
	draw_player(player.x, player.y)
	love.graphics.print("Fisk: "..player.fisk, 10, 10)

	if hint.time > 0 then
		love.graphics.printf(hint.text, 300, 100, 200, "center")
	end

	for _, spot in ipairs(hotspots) do
		love.graphics.circle("fill", spot.x, spot.y, 10)
	end
end