> 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/caixas.md).

# Caixas nos inimigos

Uma caixa, o nome e a barra de vida em cada inimigo. Mostra:

* `entities.players("enemies")` e os campos de cada jogador;
* `vec3:to_screen()` para passar do mapa para a tela;
* `color:lerp` para a barra ir do vermelho ao verde.

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

```lua
-- @name Enemy Boxes
-- @author perfect
-- @version 1.0
-- @description A box, name and health bar on each enemy.

ui.group("Boxes", "Drawn from the game's player list")
local enabled = ui.toggle("Enabled", "Draw the boxes", true, color(255, 140, 40))
local names   = ui.toggle("Names", "Name above the box", true)
local health  = ui.toggle("Health", "Bar on the left", true)
local visible = ui.toggle("Visible only", "Skip enemies behind walls", false)

local function draw_enemy(enemy, clr)
    local feet_x, feet_y = enemy.origin:to_screen()
    local top_x, top_y = (enemy.head + vec3(0, 0, 8)):to_screen()
    if not feet_x or not top_x then return end

    local h = feet_y - top_y
    local w = h * 0.5
    local x = feet_x - w / 2
    render.rect(x, top_y, w, h, clr, 0, 1.5)

    if names:get() then
        render.text(feet_x, top_y - 16, enemy.name, color(255, 255, 255), { size = 13, align = "center", shadow = true })
    end
    if health:get() then
        local hp = utils.clamp(enemy.health / 100, 0, 1)
        render.rect_filled(x - 5, top_y, 3, h, color(0, 0, 0, 160))
        render.rect_filled(x - 5, top_y + h * (1 - hp), 3, h * hp, color(255, 80, 80):lerp(color(80, 220, 120), hp))
    end
end

callbacks.add("draw", function()
    local on, clr = enabled:get()
    if not on or not engine.is_in_game() then return end
    for _, enemy in ipairs(entities.players("enemies")) do
        if not enemy.dormant and (enemy.visible or not visible:get()) then
            draw_enemy(enemy, clr)
        end
    end
end)
```

A altura da caixa vem da distância na tela entre os pés e um ponto um pouco acima da cabeça, por isso ela diminui com a distância.


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