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Sep 5th, 2015
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  1. Events:Subscribe("ModuleLoad", function()
  2.  
  3.     boxes = {
  4.         ['km07.submarine.eez/key014_02-a.lod']  = {Vector3(-66.16, -41.87, -265.63), Vector3(66.14, 69.94, 255.33)}
  5.     }
  6.    
  7.     -- boxes = {
  8.         -- ['km07.submarine.eez/key014_02-a.lod']   = {Vector3(-45, -42, -280), Vector3(45, 5, 260)}
  9.     -- }
  10.  
  11.     ellipsoids = {}
  12.  
  13.     for model,box in pairs(boxes) do
  14.  
  15.         local a = (box[2].x - box[1].x) / 2
  16.         local b = (box[2].y - box[1].y) / 2
  17.         local c = (box[2].z - box[1].z) / 2
  18.        
  19.         ellipsoids[model] = {a, b, c}
  20.  
  21.     end
  22.    
  23.     Events:Subscribe("Render", Draw)
  24.  
  25. end)
  26.  
  27. function Draw()
  28.  
  29.     for obj in Client:GetStaticObjects() do
  30.    
  31.         if IsValid(obj) and obj:GetModel() == "km07.submarine.eez/key014_02-a.lod" then
  32.        
  33.             -- DrawBoundingCorners(obj, Color.Yellow)
  34.             -- DrawBoundingBoxRelative(obj, Color.Yellow)
  35.             -- DrawBoundingEllipsoidRelative(obj, 20, Color.Cyan)
  36.             -- DrawBoundingBox(obj, Color.Yellow)
  37.  
  38.         end
  39.        
  40.     end
  41.  
  42. end
  43.  
  44. function DrawBoundingCorners(obj, color)
  45.  
  46.     local u, v = obj:GetBoundingBox()
  47.     Render:DrawCircle(Render:WorldToScreen(u), 10, color)
  48.     Render:DrawCircle(Render:WorldToScreen(v), 10, color)
  49.  
  50. end
  51.  
  52. function DrawBoundingBox(obj, color)
  53.  
  54.     local u, v = obj:GetBoundingBox()
  55.  
  56.     local corners = {
  57.         Vector3(u.x, u.y, u.z),
  58.         Vector3(u.x, u.y, v.z),
  59.         Vector3(v.x, u.y, v.z),
  60.         Vector3(v.x, u.y, u.z),
  61.         Vector3(u.x, v.y, u.z),
  62.         Vector3(u.x, v.y, v.z),
  63.         Vector3(v.x, v.y, v.z),
  64.         Vector3(v.x, v.y, u.z),
  65.     }
  66.            
  67.     Render:DrawLine(corners[1], corners[2], color)
  68.     Render:DrawLine(corners[2], corners[3], color)
  69.     Render:DrawLine(corners[3], corners[4], color)
  70.     Render:DrawLine(corners[4], corners[1], color)
  71.    
  72.     Render:DrawLine(corners[1], corners[5], color)
  73.     Render:DrawLine(corners[2], corners[6], color)
  74.     Render:DrawLine(corners[3], corners[7], color)
  75.     Render:DrawLine(corners[4], corners[8], color)
  76.    
  77.     Render:DrawLine(corners[5], corners[6], color)
  78.     Render:DrawLine(corners[6], corners[7], color)
  79.     Render:DrawLine(corners[7], corners[8], color)
  80.     Render:DrawLine(corners[8], corners[5], color)
  81.  
  82. end
  83.  
  84. function DrawBoundingBoxRelative(obj, color)
  85.  
  86.     local model = obj:GetModel()
  87.     local position = obj:GetPosition()
  88.     local angle = obj:GetAngle()
  89.    
  90.     local u = boxes[model][1]
  91.     local v = boxes[model][2]
  92.    
  93.     local corners = {
  94.         position + angle * Vector3(u.x, u.y, u.z),
  95.         position + angle * Vector3(u.x, u.y, v.z),
  96.         position + angle * Vector3(v.x, u.y, v.z),
  97.         position + angle * Vector3(v.x, u.y, u.z),
  98.         position + angle * Vector3(u.x, v.y, u.z),
  99.         position + angle * Vector3(u.x, v.y, v.z),
  100.         position + angle * Vector3(v.x, v.y, v.z),
  101.         position + angle * Vector3(v.x, v.y, u.z),
  102.     }
  103.            
  104.     Render:DrawLine(corners[1], corners[2], color)
  105.     Render:DrawLine(corners[2], corners[3], color)
  106.     Render:DrawLine(corners[3], corners[4], color)
  107.     Render:DrawLine(corners[4], corners[1], color)
  108.    
  109.     Render:DrawLine(corners[1], corners[5], color)
  110.     Render:DrawLine(corners[2], corners[6], color)
  111.     Render:DrawLine(corners[3], corners[7], color)
  112.     Render:DrawLine(corners[4], corners[8], color)
  113.    
  114.     Render:DrawLine(corners[5], corners[6], color)
  115.     Render:DrawLine(corners[6], corners[7], color)
  116.     Render:DrawLine(corners[7], corners[8], color)
  117.     Render:DrawLine(corners[8], corners[5], color)
  118.  
  119. end
  120.  
  121. function DrawBoundingEllipsoidRelative(obj, resolution, color)
  122.  
  123.     local model = obj:GetModel()
  124.     local position = obj:GetPosition()
  125.     local angle = obj:GetAngle()
  126.    
  127.     local u = position + angle * boxes[model][1]
  128.     local v = position + angle * boxes[model][2]
  129.     local origin = math.lerp(u, v, 0.5)
  130.    
  131.     local a = ellipsoids[model][1]
  132.     local b = ellipsoids[model][2]
  133.     local c = ellipsoids[model][3]
  134.    
  135.     local ellipses = {{}, {}, {}}
  136.    
  137.     for theta = 0, (2 * math.pi), (2 * math.pi) / resolution do
  138.    
  139.         table.insert(ellipses[1], origin + angle * Vector3(a * math.cos(theta), b * math.sin(theta), 0))
  140.         table.insert(ellipses[2], origin + angle * Vector3(a * math.cos(theta), 0, c * math.sin(theta)))
  141.         table.insert(ellipses[3], origin + angle * Vector3(0, b * math.sin(theta), c * math.cos(theta)))
  142.        
  143.         for i,u in ipairs(ellipses) do
  144.             for j,v in ipairs(u) do
  145.                 if u[j+1] then Render:DrawLine(v, u[j+1], color) end
  146.             end
  147.         end
  148.        
  149.     end
  150.    
  151. end
  152.  
  153. function PositionIsInsideStaticObject(position, obj)
  154.  
  155.     local model = obj:GetModel()
  156.     local position = vehicle:GetPosition()
  157.     local angle = vehicle:GetAngle()
  158.        
  159.     local u = position + angle * boxes[model][1]
  160.     local v = position + angle * boxes[model][2]
  161.     local origin = math.lerp(u, v, 0.5)
  162.    
  163.     local coord = -angle * (position - origin)
  164.    
  165.     local x_term = (coord.x / ellipsoids[model][1])^2
  166.     local y_term = (coord.y / ellipsoids[model][2])^2
  167.     local z_term = (coord.z / ellipsoids[model][3])^2
  168.    
  169.     if x_term + y_term + z_term > 1 then
  170.         return false
  171.     else
  172.         return true
  173.     end
  174.  
  175. end
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