forked from hkc/cc-stuff
91 lines
3.0 KiB
Lua
91 lines
3.0 KiB
Lua
return function()
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local playerLookVector = nil
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local function updateLookVector()
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-- yaw:
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-- 0 => positive Z
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-- 90 => negative X
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-- pitch:
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-- 0 => forward
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-- 90 => down
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local yawr = math.rad(player.yaw)
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local pitchr = math.rad(player.pitch)
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local cosPitch = math.cos(pitchr)
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local x = cosPitch * -math.sin(yawr)
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local z = cosPitch * math.cos(yawr)
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local y = -math.sin(pitchr)
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playerLookVector = {x, y, z, x = x, y = y, z = z}
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return playerLookVector
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end
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local function dotProduct3(u, v)
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return u.x * v.x + u.y * v.y + u.z * v.z
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end
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local function vec3Scale(k, v)
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return {x = k * v.x, y = k * v.y, z = k * v.z}
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end
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local function vec3Add(u, v)
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return {x = u.x + v.x, y = u.y + v.y, z = u.z + v.z}
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end
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local function toFrontCoords(entity)
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local dotResult = dotProduct3(entity, playerLookVector)
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if dotResult >= 0.0 then
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return {x = entity.x, y = entity.y, z = entity.z, flipped = false}
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end
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local result = vec3Add(entity, vec3Scale(-2 * dotResult, playerLookVector))
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result.flipped = true
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return result
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end
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while _G.player == nil do
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os.sleep(0.05)
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end
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local cache = {}
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while _G._running do
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updateLookVector()
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for id, entry in pairs(cache) do
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if nearbyEntitiesByUUID[id] == nil then
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entry.cube.remove()
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entry.frame.remove()
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cache[id] = nil
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end
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end
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for id, entity in pairs(nearbyEntitiesByUUID) do
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if id ~= player.id then
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if cache[id] == nil then
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cache[id] = {}
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cache[id].cube = canvas3d.addBox(0, 0, 0)
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cache[id].cube.setSize(0.5, 0.5, 0.5)
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cache[id].frame = canvas3d.addFrame({ 0, 0, 0 })
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cache[id].text = cache[id].frame.addText({ 0, 0 }, "")
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end
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local entityFront = toFrontCoords(entity)
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if entityFront.flipped then
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cache[id].cube.setColor(0x004040FF)
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else
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cache[id].cube.setColor(0xFFC0C0FF)
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end
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cache[id].cube.setAlpha(0x20)
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cache[id].cube.setDepthTested(false)
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cache[id].frame.setDepthTested(false)
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cache[id].cube.setPosition(entityFront.x - 0.25, entityFront.y - 0.25, entityFront.z - 0.25)
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cache[id].frame.setPosition(entityFront.x, entityFront.y, entityFront.z)
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cache[id].text.setAlpha(0xFF)
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cache[id].text.setText(entity.name .. "\n" .. textutils.serialize(entity))
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if entityFront.flipped then
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cache[id].text.setColor(0x00FFFFFF)
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else
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cache[id].text.setColor(0xFF0000FF)
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end
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end
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end
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os.sleep(0.05)
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end
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end
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