void Start()
{
IMap map = null;
if (mapGameObject != null)
{
map = UnityEngineHelper.GetInterface <IMap>(mapGameObject);
}
if (map == null)
{
Debug.LogError("MapMesh needs a reference to a game object containing at least one component that implements IMap");
return;
}
if (!map.Finished())
{
Debug.LogError("MapMesh script can only execute after the component that implements IMap (Configure execution order that in Edit > Project Settings > Script Execution Order)");
return;
}
int width = Mathf.CeilToInt(map.GetWidth() * samplingScale),
height = Mathf.CeilToInt(map.GetHeight() * samplingScale);
Texture2D mapTexture = new Texture2D(width, height, TextureFormat.RGB24, true);
Color[] pixels = new Color[width * height];
ColorGradient gradient = new ColorGradient(colors);
int y = (invertY) ? height - 1 : 0;
Func <int, bool> yCompare, xCompare;
Func <int, int> yMove, xMove;
if (invertY)
{
yCompare = (a) => a >= 0;
yMove = (a) => a - 1;
}
else
{
yCompare = (a) => a < height;
yMove = (a) => a + 1;
}
if (invertX)
{
xCompare = (a) => a >= 0;
xMove = (a) => a - 1;
}
else
{
xCompare = (a) => a < width;
xMove = (a) => a + 1;
}
for (int p = 0; yCompare(y); y = yMove(y))
{
float wY = y / samplingScale + map.GetMinY();
int x = (invertX) ? width - 1 : 0;
for (; xCompare(x); x = xMove(x), p++)
{
float wX = x / samplingScale + map.GetMinX();
Color pixel = new Color();
gradient.GetColorAtValue(map.GetNormalizedValue(wX, wY), ref pixel);
pixels[p] = pixel;
}
}
mapTexture.SetPixels(pixels);
mapTexture.Apply(true);
GameObject mapGO = new GameObject("Map");
Mesh mesh = new Mesh();
mesh.vertices = new Vector3[]
{
new Vector3(map.GetMinX(), map.GetMaxY(), z),
new Vector3(map.GetMaxX(), map.GetMaxY(), z),
new Vector3(map.GetMaxX(), map.GetMinY(), z),
new Vector3(map.GetMinX(), map.GetMinY(), z)
};
mesh.triangles = new int[]
{
0, 1, 2,
0, 2, 3
};
mesh.uv = new Vector2[]
{
new Vector2(1, 1),
new Vector2(0, 1),
new Vector2(0, 0),
new Vector2(1, 0)
};
mesh.normals = new Vector3[]
{
Vector3.back,
Vector3.back,
Vector3.back,
Vector3.back
};
mapGO.AddComponent <MeshFilter>().mesh = mesh;
Material material = new Material(Shader.Find("Unlit/Texture"));
material.SetTexture("_MainTex", mapTexture);
mapGO.AddComponent <MeshRenderer>().material = material;
mapGO.transform.parent = transform;
mapGO.transform.localRotation = Quaternion.identity;
}
