tic80-stuff/fireworks.lua

-- title:  fireworks test
-- author: pixelbath
-- desc:   description
-- script: lua

t=0
color_fuse = {12,4}
colors = {
	{3,2,1},
	{7,6,5},
	{11,10,9},
	{15,14,13},
}

seeds = {}

function add_firework_seed(xpos)
	table.insert(seeds, {
		vel_y = -1 + (math.random() * -1),
		startx = math.random(240),
		color = math.random(3)+1,
		x = xpos, y = 136,
	})
end

function fireworks_update()
	local delete_seeds = {}
	for i = 1, #seeds do
		local this_seed = seeds[i]
		
		this_seed.vel_y = this_seed.vel_y + 0.012
		this_seed.y = this_seed.y + this_seed.vel_y

		pix(this_seed.x, this_seed.y, this_seed.color)

		-- reaching the apex
		if this_seed.vel_y > -0.1 then
			if math.random() > 10 * math.abs(this_seed.vel_y) then
				spawn_explosion(this_seed.x, this_seed.y, this_seed.color)
				table.insert(delete_seeds, i)
			end
		end
	end
	for i = #delete_seeds, 1, -1 do
		table.remove(seeds, delete_seeds[i])
	end
end

function spawn_explosion(xpos, ypos, color)

end

add_firework_seed(50)

function TIC()

	if btn(0) then y=y-1 end
	if btn(1) then y=y+1 end
	if btn(2) then x=x-1 end
	if btn(3) then x=x+1 end

	cls(0)
	fireworks_update()
	t=t+1
end

-- <WAVES>
-- 000:00000000ffffffff00000000ffffffff
-- 001:0123456789abcdeffedcba9876543210
-- 002:0123456789abcdef0123456789abcdef
-- </WAVES>

-- <SFX>
-- 000:000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000304000000000
-- </SFX>

-- <PALETTE>
-- 000:1a1c2c610018da3038fa484ceec2612cce50108540083c2404366f042c79045dda1085fff4f4f42c0038690071a508b2
-- </PALETTE>