/// <summary>
/// Fill Vertex Buffers for Sprites
/// </summary>
/// <param name="i"></param>
/// <param name="generationSettings"></param>
/// <param name="textInfo"></param>
public static void FillSpriteVertexBuffers(int i, TextGenerationSettings generationSettings, TextInfo textInfo)
{
int materialIndex = textInfo.textElementInfo[i].materialReferenceIndex;
int indexX4 = textInfo.meshInfo[materialIndex].vertexCount;
TextElementInfo[] textElementInfoArray = textInfo.textElementInfo;
textInfo.textElementInfo[i].vertexIndex = indexX4;
// Handle potential axis inversion
if (generationSettings.inverseYAxis)
{
Vector3 axisOffset;
axisOffset.x = 0;
axisOffset.y = generationSettings.screenRect.y + generationSettings.screenRect.height;
axisOffset.z = 0;
Vector3 position = textElementInfoArray[i].vertexBottomLeft.position;
position.y *= -1;
textInfo.meshInfo[materialIndex].vertices[0 + indexX4] = position + axisOffset;
position = textElementInfoArray[i].vertexTopLeft.position;
position.y *= -1;
textInfo.meshInfo[materialIndex].vertices[1 + indexX4] = position + axisOffset;
position = textElementInfoArray[i].vertexTopRight.position;
position.y *= -1;
textInfo.meshInfo[materialIndex].vertices[2 + indexX4] = position + axisOffset;
position = textElementInfoArray[i].vertexBottomRight.position;
position.y *= -1;
textInfo.meshInfo[materialIndex].vertices[3 + indexX4] = position + axisOffset;
}
else
{
textInfo.meshInfo[materialIndex].vertices[0 + indexX4] = textElementInfoArray[i].vertexBottomLeft.position;
textInfo.meshInfo[materialIndex].vertices[1 + indexX4] = textElementInfoArray[i].vertexTopLeft.position;
textInfo.meshInfo[materialIndex].vertices[2 + indexX4] = textElementInfoArray[i].vertexTopRight.position;
textInfo.meshInfo[materialIndex].vertices[3 + indexX4] = textElementInfoArray[i].vertexBottomRight.position;
}
// Setup UVS0
textInfo.meshInfo[materialIndex].uvs0[0 + indexX4] = textElementInfoArray[i].vertexBottomLeft.uv;
textInfo.meshInfo[materialIndex].uvs0[1 + indexX4] = textElementInfoArray[i].vertexTopLeft.uv;
textInfo.meshInfo[materialIndex].uvs0[2 + indexX4] = textElementInfoArray[i].vertexTopRight.uv;
textInfo.meshInfo[materialIndex].uvs0[3 + indexX4] = textElementInfoArray[i].vertexBottomRight.uv;
// Setup UVS2
textInfo.meshInfo[materialIndex].uvs2[0 + indexX4] = textElementInfoArray[i].vertexBottomLeft.uv2;
textInfo.meshInfo[materialIndex].uvs2[1 + indexX4] = textElementInfoArray[i].vertexTopLeft.uv2;
textInfo.meshInfo[materialIndex].uvs2[2 + indexX4] = textElementInfoArray[i].vertexTopRight.uv2;
textInfo.meshInfo[materialIndex].uvs2[3 + indexX4] = textElementInfoArray[i].vertexBottomRight.uv2;
// setup Vertex Colors
textInfo.meshInfo[materialIndex].colors32[0 + indexX4] = textElementInfoArray[i].vertexBottomLeft.color;
textInfo.meshInfo[materialIndex].colors32[1 + indexX4] = textElementInfoArray[i].vertexTopLeft.color;
textInfo.meshInfo[materialIndex].colors32[2 + indexX4] = textElementInfoArray[i].vertexTopRight.color;
textInfo.meshInfo[materialIndex].colors32[3 + indexX4] = textElementInfoArray[i].vertexBottomRight.color;
textInfo.meshInfo[materialIndex].vertexCount = indexX4 + 4;
}
// Function to offset vertices position to account for line spacing changes.
public static void AdjustLineOffset(int startIndex, int endIndex, float offset, TextInfo textInfo)
{
Vector3 vertexOffset = new Vector3(0, offset, 0);
for (int i = startIndex; i <= endIndex; i++)
{
textInfo.textElementInfo[i].bottomLeft -= vertexOffset;
textInfo.textElementInfo[i].topLeft -= vertexOffset;
textInfo.textElementInfo[i].topRight -= vertexOffset;
textInfo.textElementInfo[i].bottomRight -= vertexOffset;
textInfo.textElementInfo[i].ascender -= vertexOffset.y;
textInfo.textElementInfo[i].baseLine -= vertexOffset.y;
textInfo.textElementInfo[i].descender -= vertexOffset.y;
if (textInfo.textElementInfo[i].isVisible)
{
textInfo.textElementInfo[i].vertexBottomLeft.position -= vertexOffset;
textInfo.textElementInfo[i].vertexTopLeft.position -= vertexOffset;
textInfo.textElementInfo[i].vertexTopRight.position -= vertexOffset;
textInfo.textElementInfo[i].vertexBottomRight.position -= vertexOffset;
}
}
}
/// <summary>
/// Store vertex attributes into the appropriate TMP_MeshInfo.
/// </summary>
/// <param name="i"></param>
/// <param name="generationSettings"></param>
/// <param name="textInfo"></param>
public static void FillCharacterVertexBuffers(int i, TextGenerationSettings generationSettings, TextInfo textInfo)
{
int materialIndex = textInfo.textElementInfo[i].materialReferenceIndex;
int indexX4 = textInfo.meshInfo[materialIndex].vertexCount;
// Check to make sure our current mesh buffer allocations can hold these new Quads.
if (indexX4 >= textInfo.meshInfo[materialIndex].vertices.Length)
{
textInfo.meshInfo[materialIndex].ResizeMeshInfo(Mathf.NextPowerOfTwo((indexX4 + 4) / 4));
}
TextElementInfo[] textElementInfoArray = textInfo.textElementInfo;
textInfo.textElementInfo[i].vertexIndex = indexX4;
// Setup Vertices for Characters
if (generationSettings.inverseYAxis)
{
Vector3 axisOffset;
axisOffset.x = 0;
axisOffset.y = generationSettings.screenRect.y + generationSettings.screenRect.height;
axisOffset.z = 0;
Vector3 position = textElementInfoArray[i].vertexBottomLeft.position;
position.y *= -1;
textInfo.meshInfo[materialIndex].vertices[0 + indexX4] = position + axisOffset;
position = textElementInfoArray[i].vertexTopLeft.position;
position.y *= -1;
textInfo.meshInfo[materialIndex].vertices[1 + indexX4] = position + axisOffset;
position = textElementInfoArray[i].vertexTopRight.position;
position.y *= -1;
textInfo.meshInfo[materialIndex].vertices[2 + indexX4] = position + axisOffset;
position = textElementInfoArray[i].vertexBottomRight.position;
position.y *= -1;
textInfo.meshInfo[materialIndex].vertices[3 + indexX4] = position + axisOffset;
}
else
{
textInfo.meshInfo[materialIndex].vertices[0 + indexX4] = textElementInfoArray[i].vertexBottomLeft.position;
textInfo.meshInfo[materialIndex].vertices[1 + indexX4] = textElementInfoArray[i].vertexTopLeft.position;
textInfo.meshInfo[materialIndex].vertices[2 + indexX4] = textElementInfoArray[i].vertexTopRight.position;
textInfo.meshInfo[materialIndex].vertices[3 + indexX4] = textElementInfoArray[i].vertexBottomRight.position;
}
// Setup UVS0
textInfo.meshInfo[materialIndex].uvs0[0 + indexX4] = textElementInfoArray[i].vertexBottomLeft.uv;
textInfo.meshInfo[materialIndex].uvs0[1 + indexX4] = textElementInfoArray[i].vertexTopLeft.uv;
textInfo.meshInfo[materialIndex].uvs0[2 + indexX4] = textElementInfoArray[i].vertexTopRight.uv;
textInfo.meshInfo[materialIndex].uvs0[3 + indexX4] = textElementInfoArray[i].vertexBottomRight.uv;
// Setup UVS2
textInfo.meshInfo[materialIndex].uvs2[0 + indexX4] = textElementInfoArray[i].vertexBottomLeft.uv2;
textInfo.meshInfo[materialIndex].uvs2[1 + indexX4] = textElementInfoArray[i].vertexTopLeft.uv2;
textInfo.meshInfo[materialIndex].uvs2[2 + indexX4] = textElementInfoArray[i].vertexTopRight.uv2;
textInfo.meshInfo[materialIndex].uvs2[3 + indexX4] = textElementInfoArray[i].vertexBottomRight.uv2;
// setup Vertex Colors
textInfo.meshInfo[materialIndex].colors32[0 + indexX4] = textElementInfoArray[i].vertexBottomLeft.color;
textInfo.meshInfo[materialIndex].colors32[1 + indexX4] = textElementInfoArray[i].vertexTopLeft.color;
textInfo.meshInfo[materialIndex].colors32[2 + indexX4] = textElementInfoArray[i].vertexTopRight.color;
textInfo.meshInfo[materialIndex].colors32[3 + indexX4] = textElementInfoArray[i].vertexBottomRight.color;
textInfo.meshInfo[materialIndex].vertexCount = indexX4 + 4;
}