Havok vForge Draw:Debug线 画法

function OnAfterSceneLoaded(self)
  -- 建立单一关键行为和触摸输入
    Input:SetKeyAsSingleHit(Vision.KEY_SPACE)
  Input:SetKeyAsSingleHit(Vision.KEY_O)
  
  self.map = Input:CreateMap("TouchInput")
  local width, height = Screen:GetViewportSize()
  local hGrid = height * .15
    
  self.map:MapTrigger("Paint", {0,0, width, height}, "CT_TOUCH_DOUBLE_TAP",  { once = true })
  
  self.map:MapTrigger("CurX", "MOUSE", "CT_MOUSE_ABS_DELTA_X", { sensitivity = 1.0f / Screen:GetDeviceDpi() }  )
  self.map:MapTrigger("CurY", "MOUSE", "CT_MOUSE_ABS_DELTA_Y", { sensitivity = 1.0f / Screen:GetDeviceDpi() }  )
  
  if (Application:GetPlatformName() == "ANDROID") or (Application:GetPlatformName() == "IOS") or (Application:GetPlatformName() == "TIZEN") then
    
    self.icons = Game:CreateScreenMask(64, 64, "Samples\Textures\icons\debug.tga")
    self.icons:SetBlending(Vision.BLEND_ALPHA)
    self.icons:SetTargetSize(hGrid, hGrid)
    self.icons:SetPos(width - hGrid, 0)
    
    self.map:MapTrigger("CurX", {0,0, width, height}, "CT_TOUCH_ABS_DELTA_X", { sensitivity = 3.0f / Screen:GetDeviceDpi() } )
    self.map:MapTrigger("CurY", {0,0, width, height}, "CT_TOUCH_ABS_DELTA_Y", { sensitivity = 3.0f / Screen:GetDeviceDpi() } )
    self.map:MapTrigger("Toggle_Debug", { width - hGrid, 0, width, hGrid }, "CT_TOUCH_ANY", {once = true})
  end
    
    -- 启用调试输出
  -- 任何画或输出调用“调试”将被无效时禁用
  Debug:Enable(true)
  Debug:SetupLines(10,10)
  
  -- 记住其他实体
  -- （代替你可以附上一个Lua脚本这个实体了）
  self.path = Game:GetPath("DemoPath")
  Vision.Assert(self.path~=nil)
  
  self.character = Game:GetEntity("DemoEntity")
  Vision.Assert(self.character~=nil)
  
  if Application:IsInEditor() and Application:GetEditorMode()~=Vision.EDITOR_PLAY then
    Debug:PrintLine("Please use 'Play the Game' mode!")
    self:SetThinkFunctionStatus(false)
  elseif (Application:GetPlatformName() == "ANDROID") or (Application:GetPlatformName() == "IOS") or (Application:GetPlatformName() == "TIZEN") then
    Debug:PrintLine("Use touch to move drop point, then double tap to place icon. Tap Debug Icon to Enable/Disable Debugging")
  else
    Debug:PrintLine("Use your mouse and press 'SPACE' or 'O'")
    
    if not Application:IsInEditor() then
      --固定摄像头的光标，否则现场观众将创建自己的鼠标相机
      local cam = Game:GetCamera()
      cam:SetPosition(0,-3750,2800)
      cam:AttachToEntity(self, cam:GetPosition())
      cam:LookAt(self:GetPosition())
    end
  end
end

function OnThink(self)
  local pos = self:GetPosition()
 
  -- 切换调试和渲染
  if Input:IsKeyPressed(Vision.KEY_O) or self.map:GetTrigger("Toggle_Debug")>0 then
    local status = not Debug:IsEnabled()
    Debug:Enable(status)
  end
  
  -- 在地板上盖章 (direction 0,0,-1)
  if Input:IsKeyPressed(Vision.KEY_SPACE) or self.map:GetTrigger("Paint")>0 then
    local dir = Vision.hkvVec3(0,0,-1)
    -- 你也可以使用blend_opaque，blend_additive或blend_multiply为混合模式
    Debug.Draw:Wallmark(pos,dir, "Samples/Textures/havok_vision.tga", Vision.BLEND_ALPHA, 180, 90)
    -- 注：已创建的wallmarks将保持即使调试禁用
  end
  
  -- 根据鼠标的位置改变光标对象的位置
  local deltaX = self.map:GetTrigger("CurX")
  local deltaY = self.map:GetTrigger("CurY")
  
  self:IncPosition(deltaX*200, -deltaY*200, 0)
  
  -- 做一些额外的调试输出
  Debug:PrintAt(pos, "Cursor X: ".. pos.x .." Y: ".. pos.y)

  -- 一些样品绘制接口：
  local color = Vision.V_RGBA_GREEN
    
    Debug.Draw:Line( Vision.hkvVec3(-1000,1000,0), Vision.hkvVec3(1000,-1000,0), color)
  Debug.Draw:Line( Vision.hkvVec3(-1000,-1000,0), Vision.hkvVec3(1000,1000,0), color)

  color = Vision.V_RGBA_RED
  Debug.Draw:Box( Vision.hkvVec3(-1000,1000,0), 50, color)
  Debug.Draw:Box( Vision.hkvVec3(1000,-1000,0), 50, color)
  
  --画线
  color = Vision.V_RGBA_BLUE
  Debug.Draw:Path(self.path, color)
  
  -- 画骨和OBB包围盒
  color = Vision.V_RGBA_YELLOW
  Debug.Draw:BoneBoundingBox(self.character, "skeleton1:Head", color)
  Debug.Draw:OrientedBoundingBox(self.character, color)
  

  -- 在一个特定的位置输出文本
  if self.character ~= nil then
    local warriorPos = self.character:GetPosition()
    Debug:PrintAt(warriorPos, "I'm floating at " .. tostring(warriorPos))
  end
  
  --draw aabbox
  Debug.Draw:BoundingBox(self)   
  
  -- 或者你也可以操纵包围盒在画：
  --[[
  local box = self:GetBoundingBox()
  box.m_vMin = box.m_vMin * 3
  box.m_vMax = box.m_vMax * 3
  Debug.Draw:BoundingBox(box)
  ]]--
  
  -- 或得到的角落
  --[[
  local corners = self:GetBoundingBox():GetCorners()
  for i=1,#corners do
      Debug.Draw:Box(corners[i], 30, Vision.V_RGBA_PURPLE)
  end
  ]]--
end

function OnBeforeSceneUnloaded(self)
  Input:DestroyMap(self.map)
  self.map = nil
  Game:DeleteAllUnrefScreenMasks()
end