moved the file to it's own package

1 files changed, 0 insertions, 153 deletions

diff --git a/structs/structs.go b/structs/structs.go
deleted file mode 100644
index 12b208f..0000000
--- a/structs/structs.go
+++ /dev/null
@@ -1,153 +0,0 @@
-package structs
-
-// coordinate type storing a position
-type Coord struct {
-	x float64
-	y float64
-}
-
-// newCoord returns a new coordinate using the given values
-func NewCoord(x float64, y float64) Coord {
-	return Coord{x, y}
-}
-
-func (point Coord) insideOf(quadtreeCell *quadtree) bool {
-	// define the bounds
-	var lowerXBound = quadtreeCell.boundary.center.x - quadtreeCell.boundary.halfDimension
-	var upperXBound = quadtreeCell.boundary.center.x + quadtreeCell.boundary.halfDimension
-	var lowerYBound = quadtreeCell.boundary.center.y - quadtreeCell.boundary.halfDimension
-	var upperYBound = quadtreeCell.boundary.center.y + quadtreeCell.boundary.halfDimension
-
-	// if the point is in the right x range
-	if point.x < upperXBound && point.x > lowerXBound {
-
-		// test if the point is in the right y range
-		if point.y < upperYBound && point.y > lowerYBound {
-
-			// the star is within the bounds: return true
-			return true
-		}
-	}
-
-	// the star is outside of the bounds: return false
-	return false
-}
-
-// boundingBox defines a single cell in the quadtree
-type boundingBox struct {
-	center        Coord
-	halfDimension float64
-}
-
-// newBoundingBox returns a new bounding with the given struct elements
-func newBoundingBox(inCenter Coord, inHalfDimension float64) boundingBox {
-	return boundingBox{
-		center:        inCenter,
-		halfDimension: inHalfDimension,
-	}
-}
-
-// quadtree defining the whole quadtree and a node in itself (recursively)
-type quadtree struct {
-	// general information (node capacity, spacial outreach)
-	nodeCapacity int
-	boundary     boundingBox
-
-	// slice storing the star coordinates
-	pointsSlice []Coord
-
-	// the quadtree leaves
-	northWest *quadtree
-	northEast *quadtree
-	southWest *quadtree
-	southEast *quadtree
-
-	depth int
-}
-
-// newQuadtree returns a new quadtree
-func newQuadtree(boundary boundingBox, depth int) *quadtree {
-	return &quadtree{
-		nodeCapacity: 0,
-		boundary:     boundary,
-		pointsSlice:  nil,
-		northWest:    nil,
-		northEast:    nil,
-		southWest:    nil,
-		southEast:    nil,
-		depth:        depth,
-	}
-}
-
-func (quadtree *quadtree) subdivide() {
-
-	// Create the new NorthWest boundingbox
-	var newCellBoundingNorthWest = boundingBox{
-		center: Coord{
-			x: quadtree.boundary.center.x - quadtree.boundary.halfDimension/2,
-			y: quadtree.boundary.center.y + quadtree.boundary.halfDimension/2,
-		},
-		halfDimension: quadtree.boundary.halfDimension / 2,
-	}
-	quadtree.northWest = newQuadtree(newCellBoundingNorthWest, quadtree.depth+1)
-
-	// Create the new NorthWest boundingbox
-	var newCellBoundingNorthEast = boundingBox{
-		center: Coord{
-			x: quadtree.boundary.center.x + quadtree.boundary.halfDimension/2,
-			y: quadtree.boundary.center.y + quadtree.boundary.halfDimension/2,
-		},
-		halfDimension: quadtree.boundary.halfDimension / 2,
-	}
-	quadtree.northEast = newQuadtree(newCellBoundingNorthEast, quadtree.depth+1)
-
-	// Create the new NorthWest boundingbox
-	var newCellBoundingSouthWest = boundingBox{
-		center: Coord{
-			x: quadtree.boundary.center.x - quadtree.boundary.halfDimension/2,
-			y: quadtree.boundary.center.y - quadtree.boundary.halfDimension/2,
-		},
-		halfDimension: quadtree.boundary.halfDimension / 2,
-	}
-	quadtree.southWest = newQuadtree(newCellBoundingSouthWest, quadtree.depth+1)
-
-	// Create the new NorthWest boundingbox
-	var newCellBoundingSouthEast = boundingBox{
-		center: Coord{
-			x: quadtree.boundary.center.x + quadtree.boundary.halfDimension/2,
-			y: quadtree.boundary.center.y - quadtree.boundary.halfDimension/2,
-		},
-		halfDimension: quadtree.boundary.halfDimension / 2,
-	}
-	quadtree.southEast = newQuadtree(newCellBoundingSouthEast, quadtree.depth+1)
-}
-
-// insert inserts the given point into the quadtree the method is applied on
-// it returns an error incase the point is not in bounds
-func (quadtree *quadtree) insert(point Coord) {
-
-	// subdivide the quadtree into four new cells
-	quadtree.subdivide()
-
-	// if the maxDepth is not reached...
-	if quadtree.depth < 4 {
-		// ... test if the given point is inside the one of the cells
-		// and add insert it to that specific cell
-		if point.insideOf(quadtree.northWest) {
-			quadtree.northWest.insert(point)
-		}
-		if point.insideOf(quadtree.northEast) {
-			quadtree.northEast.insert(point)
-		}
-		if point.insideOf(quadtree.southWest) {
-			quadtree.southWest.insert(point)
-		}
-		if point.insideOf(quadtree.southEast) {
-			quadtree.southEast.insert(point)
-		}
-	}
-
-	// if the maximal depth of the tree has been reached:
-	// insert the point into the slice
-	quadtree.pointsSlice = append(quadtree.pointsSlice, point)
-}