-- title:  survivor
-- author: pixelbath
-- desc:   a game where you try not to die

local t = 0

local p = {
    x = 120, y = 68, hp = 1000,
}
local cam = {
    x = 120, y = 68,
}
local enemies = {}
local drops = {}
function add_drop(x, y, t)
    table.insert(enemies, {
        x = x, y = y, type = t, dc = 0.25,
    })
end

function spawn_enemy(x, y)
    table.insert(enemies, {x=x, y=y,})
end

function kill_enemy(en)
    -- TODO: check drop chance
    if math.random() > en.dc then
        add_drop(en.x, en.y, 0)
    end
    table.remove(enemies, en)
end

function draw_player()
    rect(p.x + cam.x, p.y + cam.y, 8, 8, 5)
end

-- also update here to save a loop
function draw_enemies()
    for k, en in ipairs(enemies) do
        rect(en.x, en.y, 8, 8, 3)

        if en.x > p.x and en.x < p.x + 8 and en.y > p.y and en.y < p.y + 8 then
            p.hp = p.hp - 1
        else
            -- TODO: trig
            en.x = en.x
        end
    end
end

for i=1,30 do
    spawn_enemy(i * 20, 80)
end

function TIC()
    if btn(0) then p.y = p.y - 1 end
    if btn(1) then p.y = p.y + 1 end
    if btn(2) then p.x = p.x - 1 end
    if btn(3) then p.x = p.x + 1 end
    cam.x = 120 - p.x
    cam.y = 68 - p.y

    cls(0)
    draw_player()
    draw_enemies()

    print("hp: "..p.hp)
end

-- <PALETTE>
-- 000:1a1c2c5d275db13e53ef7d57ffcd75a7f07038b76425717929366f3b5dc941a6f673eff7f4f4f494b0c2566c86333c57
-- </PALETTE>