Exemplo n.º 1
0
        public void AddSelectedNode(Node node)
        {
            if (MaxSelectedNodeCount <= SelectedNodeCount) return;

            selectedNodes[SelectedNodeCount++] = new SelectedNode
            {
                X = node.X,
                Y = node.Y,
                MinHeight = node.MinHeight,
                MaxHeight = node.MaxHeight,
                Size = node.Size,
                Level = node.Level
            };
        }
Exemplo n.º 2
0
        public Node(int x, int y, int size, ref CreateDescription createDescription)
        {
            this.x = x;
            this.y = y;
            this.size = size;

            if (size == createDescription.Settings.LeafNodeSize)
            {
                int limitX = Math.Min(createDescription.HeightMap.Width, x + size + 1);
                int limitY = Math.Min(createDescription.HeightMap.Height, y + size + 1);

                // this is a leaf node.
                createDescription.HeightMap.GetAreaMinMaxHeight(x, y, limitX - x, limitY - y, out minHeight, out maxHeight);
            }
            else
            {
                int childSize = size / 2;

                childTopLeft = new Node(x, y, childSize, ref createDescription);
                minHeight = childTopLeft.minHeight;
                maxHeight = childTopLeft.maxHeight;

                if (x + childSize < createDescription.HeightMap.Width - 1)
                {
                    childTopRight = new Node(x + childSize, y, childSize, ref createDescription);
                    minHeight = MathHelper.Min(minHeight, childTopRight.minHeight);
                    maxHeight = MathHelper.Max(maxHeight, childTopRight.maxHeight);
                }

                if (y + childSize < createDescription.HeightMap.Height - 1)
                {
                    childBottomLeft = new Node(x, y + childSize, childSize, ref createDescription);
                    minHeight = MathHelper.Min(minHeight, childBottomLeft.minHeight);
                    maxHeight = MathHelper.Max(maxHeight, childBottomLeft.maxHeight);
                }

                if (x + childSize < createDescription.HeightMap.Width - 1 &&
                    y + childSize < createDescription.HeightMap.Height - 1)
                {
                    childBottomRight = new Node(x + childSize, y + childSize, childSize, ref createDescription);
                    minHeight = MathHelper.Min(minHeight, childBottomRight.minHeight);
                    maxHeight = MathHelper.Max(maxHeight, childBottomRight.maxHeight);
                }

                level = childTopLeft.level + 1;
            }
        }
Exemplo n.º 3
0
        public void Build(ref CreateDescription createDescription)
        {
            var topNodeSize = createDescription.Settings.LeafNodeSize;
            for (int i = 1; i < createDescription.Settings.LevelCount; i++)
                topNodeSize *= 2;

            topNodeCountX = (int) Math.Ceiling((createDescription.HeightMap.Width - 1) / (float) topNodeSize);
            topNodeCountY = (int) Math.Ceiling((createDescription.HeightMap.Height - 1) / (float) topNodeSize);

            topNodes = new Node[topNodeCountX, topNodeCountY];
            for (int y = 0; y < topNodeCountY; y++)
            {
                for (int x = 0; x < topNodeCountX; x++)
                {
                    topNodes[x, y] = new Node(x * topNodeSize, y * topNodeSize, topNodeSize, ref createDescription);
                }
            }
        }