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@@ -382,37 +382,37 @@ end
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---@param origin Vec2
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---@return Array<Vec2>
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function UTIL.GetTangentHullPointsFromOrigin(hull, origin)
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local function cross(o, a, b)
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return (a.x - o.x) * (b.y - o.y) - (a.y - o.y) * (b.x - o.x)
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local function orientation(a, b, c)
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-- Returns >0 if c is to the left of ab, <0 if to the right, 0 if colinear
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return (b.x - a.x) * (c.y - a.y) - (b.y - a.y) * (c.x - a.x)
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end
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local n = #hull
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if n == 0 then return {} end
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if n == 1 then return { hull[1] } end
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local left, right = nil, nil
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for i = 1, n do
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local prev = hull[(i - 2 + n) % n + 1]
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local curr = hull[i]
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local next = hull[(i % n) + 1]
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local cp1 = cross(origin, curr, prev)
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local cp2 = cross(origin, curr, next)
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-- Tangent if the cross products have different signs or one is zero
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if cp1 * cp2 <= 0 then
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if not left then
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left = curr
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else
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right = curr
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-- Find left tangent: the hull point where all other points are to the right of the line from origin to that point
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local function findTangent(isLeft)
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local best = 1
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for i = 2, n do
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local o = orientation(origin, hull[best], hull[i])
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if (isLeft and o < 0) or (not isLeft and o > 0) then
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best = i
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end
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end
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return hull[best]
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end
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local result = {}
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if left then table.insert(result, left) end
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if right and right ~= left then table.insert(result, right) end
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return result
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local leftTangent = findTangent(true)
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local rightTangent = findTangent(false)
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-- If tangents are the same (can happen if origin is colinear), only return one
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if leftTangent.x == rightTangent.x and leftTangent.y == rightTangent.y then
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return { leftTangent }
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else
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return { leftTangent, rightTangent }
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end
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end
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end
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@@ -1089,7 +1089,6 @@ do -- INIT DCS_UTIL
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end
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functionString = functionString .. "{0,1,0,1}, {0,1,0,1}, " .. lineStyle .. ")"
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env.info(functionString)
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---@diagnostic disable-next-line: deprecated
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local f, err = loadstring(functionString)
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if f then
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@@ -1118,6 +1117,25 @@ do -- INIT DCS_UTIL
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return drawID
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end
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---@param start Vec3
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---@param finish Vec3
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---@param lineColor DrawColor
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---@param lineStyle LineType
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function DCS_UTIL.DrawLine(start, finish, lineColor, lineStyle)
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if lineStyle == nil then lineStyle = 4 end
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drawID = drawID + 1
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local lineColorMapped = {
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lineColor.r or 0,
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lineColor.g or 0,
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lineColor.b or 0,
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lineColor.a or 1
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}
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trigger.action.lineToAll(-1, drawID, start, finish, lineColorMapped, lineStyle)
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return drawID
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end
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local _markID = 200
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@@ -92,6 +92,8 @@ function BattleManager:Update()
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return math.random(4, 10) -- Return a random interval between 5 and 10 seconds for the next update
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end
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local drawID = 8633
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---@private
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---@param groups Array<SpearheadGroup>
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---@param targetGroups Array<SpearheadGroup>
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@@ -124,11 +126,22 @@ function BattleManager:LetUnitsShoot(groups, targetGroups)
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radius = 1,
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expendQty = qty,
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weaponType = ammo,
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expendQtyEnabled = true,
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counterbattaryRadius = math.random(5, 10)
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expendQtyEnabled = true
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}
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}
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---- DEBUG ONLY!!
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--- DRAWS THE SHOOTING LINE
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-- do
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-- local color = {r = 1, g = 0, b = 0, a = 1}
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-- if unit:getCoalition() == 2 then
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-- color = {r = 0, g = 0, b = 1, a = 1}
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-- end
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-- Spearhead.DcsUtil.DrawLine(unitPos, {x = point.x, y = 0, z = point.y}, color, 1)
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-- end
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self._logger:debug("Red unit " .. unit:getName() .. " will shoot " .. qty .. " rounds at point: " .. tostring(point))
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local controller = unit:getController()
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@@ -211,7 +224,35 @@ function BattleManager:GetRandomPoint(origin, groups)
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local hull = Spearhead.Util.randomFromList(hulls) --[[@as Array<Vec2>]]
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local enlargedHull = Spearhead.Util.enlargeConvexHull(hull, 25)
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local shootPoints = Spearhead.Util.GetTangentHullPointsFromOrigin(enlargedHull, origin)
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---- DEBUG ONLY!!
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---- DRAWS the hulls of the units
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-- for _, drawHull in pairs(hulls) do
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-- ---@type SpearheadTriggerZone
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-- local zone = {
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-- name = "temp",
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-- zone_type = "Polygon",
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-- radius = 0,
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-- verts = drawHull,
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-- location = { x=drawHull[1].x, y=drawHull[1].y },
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-- }
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-- Spearhead.DcsUtil.DrawZone(zone, {r =0, g= 1, b =0, a = 0.5} ,{r =0, g= 1, b =0, a = 0}, 1)
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-- local enlarged = Spearhead.Util.enlargeConvexHull(drawHull, 25)
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-- local enlargedZone = {
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-- name = "temp_enlarged",
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-- zone_type = "Polygon",
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-- radius = 0,
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-- verts = enlarged,
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-- location = { x=enlarged[1].x, y=enlarged[1].y },
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-- }
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-- Spearhead.DcsUtil.DrawZone(enlargedZone, {r =0, g= 0, b =1, a = 0.5} ,{r =0, g= 1, b =0, a = 0}, 1)
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-- end
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return Spearhead.Util.randomFromList(shootPoints) --[[@as Vec2]]
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end
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