private void Update()
{
if (canDraw)
{
// Need to keep track of dragging to make sure lerping isn't done between penup/pendown
if (Input.GetMouseButtonUp(0))
{
isDragging = false;
}
if (Input.GetMouseButton(0))
{
Ray ray = Camera.main.ScreenPointToRay(Input.mousePosition);
RaycastHit hit;
if (Physics.Raycast(ray, out hit))
{
var pallet = hit.collider.GetComponent <LobbyCanvas>();
if (pallet != null)
{
// Check to make sure the canvas was clicked
Renderer rend = hit.transform.GetComponent <Renderer>();
MeshCollider meshCollider = hit.collider as MeshCollider;
if (rend == null || rend.sharedMaterial == null || rend.sharedMaterial.mainTexture == null || meshCollider == null)
{
return;
}
Texture2D tex = rend.material.mainTexture as Texture2D;
Vector2 pixelUV = hit.textureCoord;
pixelUV.x *= tex.width;
pixelUV.y *= tex.height;
if (!isDragging)
{
prevPos = pixelUV;
}
else
{
// ColorBetween behavior
// Get the distance from start to finish
float distance = Vector2.Distance(prevPos, pixelUV);
Vector2 direction = (prevPos - pixelUV).normalized;
Vector2 cur_position = prevPos;
// Calculate how many times we should interpolate between prevPos and pixelUV based on the amount of time that has passed since the last update
float lerp_steps = 1 / distance * LobbyCanvas.BRUSH_SIZE;
for (float lerp = 0; lerp <= 1; lerp += lerp_steps)
{
cur_position = Vector2.Lerp(prevPos, pixelUV, lerp);
lobbyCanvas.BrushAreaWithColor(cur_position, ServerInfo.PLAYER_COLOR_PRESETS[ServerInfo.playerNum - 1]);
if (networkObject != null)
{
networkObject.SendRpc(RPC_DRAW, Receivers.AllBuffered, ServerInfo.playerNum, cur_position);
}
}
}
lobbyCanvas.BrushAreaWithColor(pixelUV, ServerInfo.PLAYER_COLOR_PRESETS[ServerInfo.playerNum - 1]);
if (networkObject != null)
{
networkObject.SendRpc(RPC_DRAW, Receivers.AllBuffered, ServerInfo.playerNum, pixelUV);
}
prevPos = pixelUV;
isDragging = true;
}
}
}
}
}