public void PopulateAsHollowCone(float radius, float height, LCC3Tessellation angleAndHeightDivs)
{
uint numAngularDivs = Math.Max(angleAndHeightDivs.X, 3);
uint numHeightDivs = Math.Max(angleAndHeightDivs.Y, 1);
float radiusHeightRatio = radius / height;
float angularDivSpan = (float)(Math.PI * 2) / numAngularDivs;
float heightDivSpan = height / numHeightDivs;
float radialDivSpan = radius / numHeightDivs;
float texAngularDivSpan = 1.0f / numAngularDivs;
float texHeightDivSpan = 1.0f / numHeightDivs;
uint vertexCount = (numAngularDivs + 1) * (numHeightDivs + 1);
uint triangleCount = 2 * numAngularDivs * numHeightDivs - numAngularDivs;
this.EnsureVertexContent();
this.AllocatedVertexCapacity = vertexCount;
this.AllocatedVertexIndexCapacity = (triangleCount * 3);
uint vIdx = 0;
uint iIdx = 0;
for (uint ia = 0; ia <= numAngularDivs; ia++)
{
float angle = angularDivSpan * ia;
float ca = (float)-Math.Cos(angle);
float sa = (float)-Math.Sin(angle);
LCC3Vector vtxNormal = new LCC3Vector(sa, radiusHeightRatio, ca).NormalizedVector();
for (uint ih = 0; ih <= numHeightDivs; ih++, vIdx++)
{
float vtxRadius = radius - (radialDivSpan * ih);
float vtxHt = heightDivSpan * ih;
LCC3Vector vtxLoc = new LCC3Vector(vtxRadius * sa, vtxHt, vtxRadius * ca);
this.SetVertexLocationAtIndex(vtxLoc,vIdx);
this.SetNormalAtIndex(vtxNormal, vIdx);
CCTex2F texCoord = new CCTex2F(texAngularDivSpan * ia, (1.0f - texHeightDivSpan * ih));
this.SetVertexTexCoord2FAtIndex(texCoord, vIdx);
if (ia < numAngularDivs && ih < numHeightDivs)
{
this.SetVertexIndexAtIndex( vIdx, iIdx++);
this.SetVertexIndexAtIndex((vIdx + numHeightDivs + 1),iIdx++);
this.SetVertexIndexAtIndex((vIdx + numHeightDivs + 2),iIdx++);
if (ih < numHeightDivs - 1)
{
this.SetVertexIndexAtIndex((vIdx + numHeightDivs + 2), iIdx++);
this.SetVertexIndexAtIndex((vIdx + 1), iIdx++);
this.SetVertexIndexAtIndex(vIdx, iIdx++);
}
}
}
}
}
protected CCTex2F TextureCoordFromAlphaPoint(CCPoint alpha)
{
var ret = new CCTex2F(0.0f, 0.0f);
if (m_pSprite == null)
{
return(ret);
}
CCV3F_C4B_T2F_Quad quad = m_pSprite.Quad;
var min = new CCPoint(quad.BottomLeft.TexCoords.U, quad.BottomLeft.TexCoords.V);
var max = new CCPoint(quad.TopRight.TexCoords.U, quad.TopRight.TexCoords.V);
// Fix bug #1303 so that progress timer handles sprite frame texture rotation
if (m_pSprite.IsTextureRectRotated)
{
float tmp = alpha.X;
alpha.X = alpha.Y;
alpha.Y = tmp;
}
return(new CCTex2F(min.X * (1f - alpha.X) + max.X * alpha.X, min.Y * (1f - alpha.Y) + max.Y * alpha.Y));
}
public static CCTex2F Tex2(float u, float v)
{
CCTex2F t = new CCTex2F(u, v);
return(t);
}
public CCV2F_C4F_T2F()
{
Vertices = new CCVertex2F();
Colors = new CCColor4F();
TexCoords = new CCTex2F();
}
public CCV2F_C4F_T2F()
{
Vertices = new CCVertex2F();
Colors = new CCColor4F();
TexCoords = new CCTex2F();
}
public static CCTex2F Tex2(float u, float v)
{
CCTex2F t = new CCTex2F(u, v);
return t;
}
protected CCTex2F TextureCoordFromAlphaPoint(CCPoint alpha)
{
var ret = new CCTex2F(0.0f, 0.0f);
if (m_pSprite == null)
{
return ret;
}
CCV3F_C4B_T2F_Quad quad = m_pSprite.Quad;
var min = new CCPoint(quad.BottomLeft.TexCoords.U, quad.BottomLeft.TexCoords.V);
var max = new CCPoint(quad.TopRight.TexCoords.U, quad.TopRight.TexCoords.V);
// Fix bug #1303 so that progress timer handles sprite frame texture rotation
if (m_pSprite.IsTextureRectRotated)
{
float tmp = alpha.X;
alpha.X = alpha.Y;
alpha.Y = tmp;
}
return new CCTex2F(min.X * (1f - alpha.X) + max.X * alpha.X, min.Y * (1f - alpha.Y) + max.Y * alpha.Y);
}
public void SetTexCoord2FAtIndex(CCTex2F tex2F, uint index)
{
_vertices[(int)index] = tex2F;
}
public void SetVertexTexCoord2FAtIndex(CCTex2F texCoord, uint index)
{
_vertexTexCoords.SetTexCoord2FAtIndex(texCoord, index);
}