public int Compare(int a, int b)
{
float tileA = (_tileAStar.Get(a).distance + _tileAStar.Get(a).heuristic *_heuristicWeight);
float tileB = (_tileAStar.Get(b).distance + _tileAStar.Get(b).heuristic *_heuristicWeight);
if (tileA < tileB)
{
return(-1);
}
else if (tileA > tileB)
{
return(1);
}
return(0);
}
public void Render(TileAStar tileAStar, int endX, int endY, int nodeSizeX, int nodeSizeY, Material pathMaterial)
{
List <Vector3> path = new List <Vector3>();
int index = endX + endY * tileAStar.Width;
while (index != -1)
{
path.Add(GetIndexCoords(tileAStar, index, nodeSizeX, nodeSizeY));
index = tileAStar.Get(index).parent;
}
if (path.Count < 2)
{
return;
}
const float cornerSharpness = 0.75f;
_lineRenderer.SetVertexCount(path.Count * 2 - 2);
_lineRenderer.SetPosition(0, path[0]);
for (int i = 1; i < path.Count - 1; ++i)
{
_lineRenderer.SetPosition(2 * i - 1, Vector3.Lerp(path[i - 1], path[i], cornerSharpness));
_lineRenderer.SetPosition(2 * i, Vector3.Lerp(path[i + 1], path[i], cornerSharpness));
}
_lineRenderer.SetPosition(path.Count * 2 - 3, path[path.Count - 1]);
_lineRenderer.sharedMaterial = pathMaterial;
}
public void Render(TileAStar tileAStar, int minX, int minY, int width, int height, int nodeSizeX, int nodeSizeY, float distance, Material atlasMaterial)
{
width = Mathf.Min(width, tileAStar.Width - minX);
height = Mathf.Min(height, tileAStar.Height - minY);
const int maxVerts = 65000;
if (width * height * 4 > maxVerts)
{
Debug.LogError("Render tile dimensions too large: " + width + " * " + height + " = " + (width * height * 4) + " (> " + maxVerts + ")");
return;
}
Vector3[] verts = new Vector3[width * height * 8];
Vector2[] uvs = new Vector2[width * height * 8];
Color32[] colors = new Color32[width * height * 8];
int[] tris = new int[width * height * 6];
int index = 0;
for (int y = minY; y < minY + height; ++y)
{
for (int x = minX; x < minX + width; ++x, ++index)
{
int nodeIndex = x + y * tileAStar.Width;
Color32 c;
if (tileAStar.Get(nodeIndex).distance < 0.0f)
{
c = Color.clear;
}
else if (tileAStar.Get(nodeIndex).distance >= TileAStar.INFINITY)
{
c = new Color(0f, 0.1f, .4f, 1.0f);
}
else
{
float value = Mathf.Clamp01(tileAStar.Get(nodeIndex).distance / distance);
c = new Color(1.0f, value, value, 1.0f);
}
verts[index * 4 + 0] = new Vector3(x, y, 0);
uvs[index * 4 + 0] = new Vector2(0, 0);
colors[index * 4 + 0] = c;
verts[index * 4 + 1] = new Vector3(x, y + 1, 0);
uvs[index * 4 + 1] = new Vector2(0, 1);
colors[index * 4 + 1] = c;
verts[index * 4 + 2] = new Vector3(x + 1, y + 1, 0);
uvs[index * 4 + 2] = new Vector2(1, 1);
colors[index * 4 + 2] = c;
verts[index * 4 + 3] = new Vector3(x + 1, y, 0);
uvs[index * 4 + 3] = new Vector2(1, 0);
colors[index * 4 + 3] = c;
tris[index * 6 + 0] = index * 4 + 0;
tris[index * 6 + 1] = index * 4 + 1;
tris[index * 6 + 2] = index * 4 + 2;
tris[index * 6 + 3] = index * 4 + 2;
tris[index * 6 + 4] = index * 4 + 3;
tris[index * 6 + 5] = index * 4 + 0;
}
}
_mesh.Clear();
_mesh.vertices = verts;
_mesh.uv = uvs;
_mesh.colors32 = colors;
_mesh.triangles = tris;
_meshFilter.sharedMesh = _mesh;
_meshRenderer.sharedMaterial = atlasMaterial;
}