TreD/point.lua at main · CalebSlot/TreD · GitHub

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local vector = require("vector")

Point = {}


Point.__index = Point


function Point:new(vX,vY,vZ)
      local point = {}
      setmetatable(point, Point)
      point.X = vX or 0
      point.Y = vY or 0
      point.Z = vZ or 0
      point.c = nil
      return point
end
function Point:clone()
    local p = Point:new()
    p:setX(self.X)
    p:setY(self.Y)
    p:setZ(self.Z)
    return p
end
function Point:setX(val)
 self.X = val
end
function Point:setY(val)
 self.Y = val
end
function Point:setZ(val)
 self.Z = val
end
function Point:getX()
 return self.X
end
function Point:getY()
 return self.Y
end
function Point:getZ()
 return self.Z
end
function Point:add(x,y,z)
  self.X = self.X + x
  self.Y = self.Y + y
  self.Z = self.Z + z
end
function Point:sub(x,y,z)
  self.X = self.X - x
  self.Y = self.Y - y
  self.Z = self.Z - z
end
function Point:mul(x,y,z)
  self.X = self.X * x
  self.Y = self.Y * y
  self.Z = self.Z * z
end
function Point:translate(translationVector)
  local p = Point:new()
  p:add(self.X,self.Y,self.Z)
  p:add(translationVector:getX(),translationVector:getY(),translationVector:getZ())
  return p
end

function Point:mid(endPoint)
  local p = Point:new()
  local diff = endPoint - self
  p:setX(self.X + diff:getX() / 2)
  p:setY(self.Y + diff:getY() / 2)
  return p
end

function Point:toString()
    return "X" .. self.X .. "Y" .. self.Y .. "Z" .. self.Z
end
--overload +
function Point.__add(this, that)
 local v = vector:new()
 v:addUpdate(this.X,this.Y,this.Z)
 v:addUpdate(that.X,that.Y,that.Z)
 return v
end
--overload -
function Point.__sub(this, that)
 local v = vector:new()
 v:addUpdate(this.X,this.Y,this.Z)
 v:subUpdate(that.X,that.Y,that.Z)
 return v
end
function Point.__mul(this, that)
 local p = this:clone()
 p:mul(that:getX(),that:getY(),that:getZ())
 return p
end
function Point:translate(vector)
  return self * vector
end
function Point:toCircle(radius,color)
  if(self.c ~=nil)
  then
    display.remove(self.c)
  end
  self.c = display.newCircle(self.X,self.Y,radius)
  self.c:setFillColor(unpack(color))

end

function Point:Test()

local p = Point:new()
p:setX(5)
print(p:toString())
p:add(1,2,3)
print(p:toString())
p:sub(1,2,3)
print(p:toString())

p2 = Point:new()
p2:setX(5)
p2:setY(6)
p2:setZ(7)

v3 = p + p2

print(v3:toString())
v3 = v3 - p2

print(v3:toString())

v3 = p + p2
print(v3:toString())
print("mul")
print(p:toString())
print(v3:toString())
print(v3:magn())
p1 = p:clone()
p  = p * v3
p1 = p1:translate(v3)
print(p:toString())
print(p1:toString())
end

return Point