> For the complete documentation index, see [llms.txt](https://docs.perfectcs2.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.perfectcs2.com/exemplos/mira.md).

# Mira personalizada

Desenha uma mira no centro da tela, com estilo, tamanho, espaço, cor e contorno. Mostra:

* uma opção com cor (`ui.toggle` com `color`);
* opções bloqueadas conforme outra (`:enabled` dentro de `:callback`);
* desenho com `render.rect_filled` e `render.circle_filled`.

Salve como `crosshair.lua` na pasta de scripts e ligue na aba **Scripts**.

```lua
-- @name Custom Crosshair
-- @author perfect
-- @version 1.0
-- @description Draws a crosshair with size, gap, color and outline.

ui.group("Crosshair", "Lines at the center of the screen")
local enabled = ui.toggle("Enabled", "Draw the crosshair", true, color(255, 255, 255))
local style   = ui.combo("Style", "Shape of the crosshair", { "Cross", "Dot", "T-Shape" })
local size    = ui.slider("Size", "Length of each line", 2, 20, 6, "%.0f px")
local gap     = ui.slider_int("Gap", "Space in the middle", 0, 10, 3, "%d px")
local outline = ui.toggle("Outline", "Dark border around the lines", true)

-- Size and gap don't apply to the dot.
local function refresh()
    local dot = style:get() == "Dot"
    size:enabled(not dot, "Not used by the Dot style")
    gap:enabled(not dot, "Not used by the Dot style")
end
style:callback(refresh)
refresh()

local function bar(x, y, w, h, clr)
    if outline:get() then
        render.rect_filled(x - 1, y - 1, w + 2, h + 2, color(0, 0, 0, 200))
    end
    render.rect_filled(x, y, w, h, clr)
end

callbacks.add("draw", function()
    local on, clr = enabled:get()
    if not on then return end

    local w, h = render.screen_size()
    local cx, cy = math.floor(w / 2), math.floor(h / 2)
    local length, space = size:get(), gap:get()

    if style:get() == "Dot" then
        if outline:get() then render.circle_filled(cx, cy, 3.5, color(0, 0, 0, 200)) end
        render.circle_filled(cx, cy, 2.5, clr)
        return
    end

    if style:get() == "Cross" then
        bar(cx - 1, cy - space - length, 2, length, clr) -- top
    end
    bar(cx - 1, cy + space, 2, length, clr)              -- bottom
    bar(cx - space - length, cy - 1, length, 2, clr)     -- left
    bar(cx + space, cy - 1, length, 2, clr)              -- right
end)
```

Com o estilo **Dot**, o tamanho e o espaço ficam apagados no menu, com a explicação ao passar o mouse.


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