public static PaintContext.TerrainTile Make(Terrain terrain, int tileOriginPixelsX, int tileOriginPixelsY, RectInt pixelRect, int targetTextureWidth, int targetTextureHeight)
{
PaintContext.TerrainTile terrainTile = new PaintContext.TerrainTile
{
terrain = terrain,
gatherEnable = true,
scatterEnable = true,
tileOriginPixels = new Vector2Int(tileOriginPixelsX, tileOriginPixelsY),
clippedTerrainPixels = new RectInt
{
x = Mathf.Max(0, pixelRect.x - tileOriginPixelsX),
y = Mathf.Max(0, pixelRect.y - tileOriginPixelsY),
xMax = Mathf.Min(targetTextureWidth, pixelRect.xMax - tileOriginPixelsX),
yMax = Mathf.Min(targetTextureHeight, pixelRect.yMax - tileOriginPixelsY)
}
};
terrainTile.clippedPCPixels = new RectInt(terrainTile.clippedTerrainPixels.x + terrainTile.tileOriginPixels.x - pixelRect.x, terrainTile.clippedTerrainPixels.y + terrainTile.tileOriginPixels.y - pixelRect.y, terrainTile.clippedTerrainPixels.width, terrainTile.clippedTerrainPixels.height);
bool flag = terrainTile.clippedTerrainPixels.width == 0 || terrainTile.clippedTerrainPixels.height == 0;
if (flag)
{
terrainTile.gatherEnable = false;
terrainTile.scatterEnable = false;
UnityEngine.Debug.LogError("PaintContext.ClipTerrainTiles found 0 content rect");
}
return(terrainTile);
}
private static void OnTerrainPainted(PaintContext.TerrainTile tile, ToolAction action)
{
for (int i = 0; i < s_PaintedTerrain.Count; ++i)
{
if (tile.terrain == s_PaintedTerrain[i].terrain)
{
s_PaintedTerrain[i].action |= action;
return;
}
}
s_PaintedTerrain.Add(new PaintedTerrain {
terrain = tile.terrain, action = action
});
}
internal void FindTerrainTiles()
{
m_TerrainTiles = new List <PaintContext.TerrainTile>();
Terrain left = originTerrain.leftNeighbor;
Terrain right = originTerrain.rightNeighbor;
Terrain top = originTerrain.topNeighbor;
Terrain bottom = originTerrain.bottomNeighbor;
bool wantLeft = (pixelRect.x < 0);
bool wantRight = (pixelRect.xMax > (targetTextureWidth - 1));
bool wantTop = (pixelRect.yMax > (targetTextureHeight - 1));
bool wantBottom = (pixelRect.y < 0);
if (wantLeft && wantRight)
{
Debug.LogWarning("PaintContext pixelRect is too large! It should touch a maximum of 2 Terrains horizontally.");
wantRight = false;
}
if (wantTop && wantBottom)
{
Debug.LogWarning("PaintContext pixelRect is too large! It should touch a maximum of 2 Terrains vertically.");
wantBottom = false;
}
// add center tile
TerrainTile tile = new TerrainTile(originTerrain, 0, 0);
m_TerrainTiles.Add(tile);
// add horizontal and vertical neighbors
Terrain horiz = null;
Terrain vert = null;
Terrain cornerTerrain = null;
int horizTileDelta = 0; // how many tiles to move horizontally
int vertTileDelta = 0; // how many tiles to move vertically
if (wantLeft)
{
horizTileDelta = -1;
horiz = left;
}
else if (wantRight)
{
horizTileDelta = 1;
horiz = right;
}
if (wantTop)
{
vertTileDelta = 1;
vert = top;
}
else if (wantBottom)
{
vertTileDelta = -1;
vert = bottom;
}
if (horiz)
{
tile = new TerrainTile(horiz, horizTileDelta * (targetTextureWidth - 1), 0);
m_TerrainTiles.Add(tile);
// add corner, if we have a link
if (wantTop && horiz.topNeighbor)
{
cornerTerrain = horiz.topNeighbor;
}
else if (wantBottom && horiz.bottomNeighbor)
{
cornerTerrain = horiz.bottomNeighbor;
}
}
if (vert)
{
tile = new PaintContext.TerrainTile(vert, 0, vertTileDelta * (targetTextureHeight - 1));
m_TerrainTiles.Add(tile);
// add corner, if we have a link
if (wantLeft && vert.leftNeighbor)
{
cornerTerrain = vert.leftNeighbor;
}
else if (wantRight && vert.rightNeighbor)
{
cornerTerrain = vert.rightNeighbor;
}
}
if (cornerTerrain != null)
{
tile = new TerrainTile(cornerTerrain, horizTileDelta * (targetTextureWidth - 1), vertTileDelta * (targetTextureHeight - 1));
m_TerrainTiles.Add(tile);
}
}
internal void FindTerrainTiles()
{
m_TerrainTiles = new List <PaintContext.TerrainTile>();
Terrain left = originTerrain.leftNeighbor;
Terrain right = originTerrain.rightNeighbor;
Terrain top = originTerrain.topNeighbor;
Terrain bottom = originTerrain.bottomNeighbor;
bool wantLeft = (pixelRect.x < 0);
bool wantRight = (pixelRect.xMax > (targetTextureWidth - 1));
bool wantTop = (pixelRect.yMax > (targetTextureHeight - 1));
bool wantBottom = (pixelRect.y < 0);
if (wantLeft && wantRight)
{
Debug.LogWarning("PaintContext pixelRect is too large! It should touch a maximum of 2 Terrains horizontally.");
wantRight = false;
}
if (wantTop && wantBottom)
{
Debug.LogWarning("PaintContext pixelRect is too large! It should touch a maximum of 2 Terrains vertically.");
wantBottom = false;
}
// add center tile
TerrainTile tile = new TerrainTile(originTerrain, new RectInt(0, 0, targetTextureWidth, targetTextureHeight));
tile.readOffset = Vector2Int.zero;
tile.writeOffset = Vector2Int.zero;
m_TerrainTiles.Add(tile);
// add horizontal and vertical neighbors
Terrain horiz = null;
Terrain vert = null;
Terrain cornerTerrain = null;
int xBias = 0;
int yBias = 0;
int xReadBias = 0;
int yReadBias = 0;
int xWriteBias = 0;
int yWriteBias = 0;
if (wantLeft)
{
xBias = -1;
xReadBias = -1;
xWriteBias = 1;
horiz = left;
}
else if (wantRight)
{
xBias = 1;
xReadBias = 1;
xWriteBias = -1;
horiz = right;
}
if (wantTop)
{
yBias = 1;
yReadBias = 1;
yWriteBias = -1;
vert = top;
}
else if (wantBottom)
{
yBias = -1;
yReadBias = -1;
yWriteBias = 1;
vert = bottom;
}
if (horiz)
{
tile = new TerrainTile(horiz, new RectInt(xBias * targetTextureWidth, 0, targetTextureWidth, targetTextureHeight));
tile.readOffset = new Vector2Int(xReadBias, 0);
tile.writeOffset = new Vector2Int(xWriteBias, 0);
m_TerrainTiles.Add(tile);
// add corner, if we have a link
if (wantTop && horiz.topNeighbor)
{
cornerTerrain = horiz.topNeighbor;
}
else if (wantBottom && horiz.bottomNeighbor)
{
cornerTerrain = horiz.bottomNeighbor;
}
}
if (vert)
{
tile = new PaintContext.TerrainTile(vert, new RectInt(0, yBias * targetTextureHeight, targetTextureWidth, targetTextureHeight));
tile.readOffset = new Vector2Int(0, yReadBias);
tile.writeOffset = new Vector2Int(0, yWriteBias);
m_TerrainTiles.Add(tile);
// add corner, if we have a link
if (wantLeft && vert.leftNeighbor)
{
cornerTerrain = vert.leftNeighbor;
}
else if (wantRight && vert.rightNeighbor)
{
cornerTerrain = vert.rightNeighbor;
}
}
if (cornerTerrain != null)
{
tile = new TerrainTile(cornerTerrain, new RectInt(xBias * targetTextureWidth, yBias * targetTextureHeight, targetTextureWidth, targetTextureHeight));
tile.readOffset = new Vector2Int(xReadBias, yReadBias);
tile.writeOffset = new Vector2Int(xWriteBias, yWriteBias);
m_TerrainTiles.Add(tile);
}
}