/// <summary>
/// Recursivly follows the drawpath instructions in order to render the tiles
/// </summary>
/// <param name="dpi"></param>
/// <param name="oldPosition"></param>
/// <param name="oldNode"></param>
private void HandleDPI(DrawPathInstruction dpi, Vector2Int oldPosition, Node oldNode, bool grayout)
{
//If our map does not have a node in the instruction dir, we cannot render in that dir
//if (oldNode.GetConnectionFromDir(dpi.dir) == null) {
if (oldNode[(int)dpi.dir] < 0) // if this does not point to a node
{
return;
}
Vector2Int position = oldPosition + dpi.dir.offset();
RenderTile tile = renderLayers[dpi.dir.renderLayer()][position.x, position.y];
grayout = grayout || GameManager.gameplay.map.disjoint(oldNode, dpi.dir); // gray-out if disjoint, or previos node was grayed-out
Node node = GameManager.gameplay.map[oldNode[(int)dpi.dir]];
//Draw the node, regarless of if it is null (null node is handled by the drawer)
tile.DrawFullNode(node, dpi.dir, position, grayout);
//If the node is not null, then we continue on with the instructions
if (node != null)
{
//Add it to the list of drawn nodes
if (visibleNodes.Contains(node) == false)
{
visibleNodes.Add(node);
}
//Follow instructions on the next node
foreach (DrawPathInstruction nDpi in dpi.nextInstructions)
{
HandleDPI(nDpi, position, node, grayout);
}
}
}
private void HandleDPI(DrawPathInstruction dpi, Vector2Int oldPosition, Node oldNode)
{
//If our map does not have a node in the instruction dir, we cannot render in that dir
if (oldNode.GetConnectionFromDir(dpi.dir) == null)
{
return;
}
Vector2Int position = oldPosition + dpi.dir.offset();
RenderTile tile = renderLayers[dpi.dir.renderLayer()][position.x, position.y];
Node node = GameManager.instance.map[(int)oldNode.GetConnectionFromDir(dpi.dir)];
//Draw the node, regarless of if it is null (null node is handled by the drawer)
tile.DrawFullNode(node);
//If the node is not null, then we continue on with the instructions
if (node != null)
{
//Add it to the list of drawn nodes
if (visibleNodes.Contains(node) == false)
{
visibleNodes.Add(node);
}
//Follow instructions on the next node
foreach (DrawPathInstruction nDpi in dpi.nextInstructions)
{
HandleDPI(nDpi, position, node);
}
}
}
void Start()
{
center = new Vector2Int(renderMap.dim / 2, renderMap.dim / 2);
drawPathInstructions = new DrawPathInstruction[4];
for (int i = 0; i < 4; i++)
{
Direction dir = (Direction)i;
Direction left = dir.counterclockwise();
Direction right = dir.clockwise();
drawPathInstructions[i] = new DrawPathInstruction(dir, new DrawPathInstruction[] {
new DrawPathInstruction(dir, new DrawPathInstruction[] { new DrawPathInstruction(left, new DrawPathInstruction[] { }), new DrawPathInstruction(right, new DrawPathInstruction[] { }) }),
new DrawPathInstruction(left, new DrawPathInstruction[] { new DrawPathInstruction(dir, new DrawPathInstruction[] { new DrawPathInstruction(left, new DrawPathInstruction[] { }) }) }),
new DrawPathInstruction(right, new DrawPathInstruction[] { new DrawPathInstruction(dir, new DrawPathInstruction[] { new DrawPathInstruction(right, new DrawPathInstruction[] { }) }) }),
});
}
}
// Use this for initialization
public void initialize()
{
center = new Vector2Int(renderMap.dim / 2, renderMap.dim / 2);
// drawPathInstructions does need to be hardcoded, but this algorithm makes it so only 1/4 of it needs to be written, since it is the same pattern in each of the 4 directions
if (drawPathInstructions.Length < 4)
{
drawPathInstructions = new DrawPathInstruction[4];
for (int i = 0; i < 4; i++)
{
Direction dir = (Direction)i;
Direction left = dir.counterclockwise();
Direction right = dir.clockwise();
drawPathInstructions[i] = new DrawPathInstruction(dir, new DrawPathInstruction[] {
new DrawPathInstruction(dir, new DrawPathInstruction[] { new DrawPathInstruction(left, new DrawPathInstruction[] { }), new DrawPathInstruction(right, new DrawPathInstruction[] { }) }),
new DrawPathInstruction(left, new DrawPathInstruction[] { new DrawPathInstruction(dir, new DrawPathInstruction[] { new DrawPathInstruction(left, new DrawPathInstruction[] { }) }) }),
new DrawPathInstruction(right, new DrawPathInstruction[] { new DrawPathInstruction(dir, new DrawPathInstruction[] { new DrawPathInstruction(right, new DrawPathInstruction[] { }) }) }),
});
}
}
}
