public ccQuad2()
{
tl = new ccVertex2F();
tr = new ccVertex2F();
bl = new ccVertex2F();
br = new ccVertex2F();
}
public static ccVertex2F vertex2(float x, float y)
{
ccVertex2F c = new ccVertex2F(x, y);
return c;
}
public ccV2F_C4F_T2F()
{
vertices = new ccVertex2F();
colors = new ccColor4F();
texCoords = new ccTex2F();
}
public ccPointSprite()
{
pos = new ccVertex2F();
color = new ccColor4B();
size = 0.0f;
}
public ccVertex2F(ccVertex2F copy)
{
x = copy.x;
y = copy.y;
}
public static void LineToPolygon(CCPoint[] points, float stroke, ccVertex2F[] vertices, int offset, int nuPoints)
{
nuPoints += offset;
if (nuPoints <= 1)
{
return;
}
stroke *= 0.5f;
int idx;
int nuPointsMinus = nuPoints - 1;
for (int i = offset; i < nuPoints; i++)
{
idx = i * 2;
CCPoint p1 = points[i];
CCPoint perpVector;
if (i == 0)
{
perpVector = CCPointExtension.ccpPerp(CCPointExtension.ccpNormalize(CCPointExtension.ccpSub(p1, points[i + 1])));
}
else if (i == nuPointsMinus)
{
perpVector = CCPointExtension.ccpPerp(CCPointExtension.ccpNormalize(CCPointExtension.ccpSub(points[i - 1], p1)));
}
else
{
CCPoint p2 = points[i + 1];
CCPoint p0 = points[i - 1];
CCPoint p2p1 = CCPointExtension.ccpNormalize(CCPointExtension.ccpSub(p2, p1));
CCPoint p0p1 = CCPointExtension.ccpNormalize(CCPointExtension.ccpSub(p0, p1));
// Calculate angle between vectors
float angle = (float)Math.Acos(CCPointExtension.ccpDot(p2p1, p0p1));
if (angle < ccMacros.CC_DEGREES_TO_RADIANS(70))
{
perpVector = CCPointExtension.ccpPerp(CCPointExtension.ccpNormalize(CCPointExtension.ccpMidpoint(p2p1, p0p1)));
}
else if (angle < ccMacros.CC_DEGREES_TO_RADIANS(170))
{
perpVector = CCPointExtension.ccpNormalize(CCPointExtension.ccpMidpoint(p2p1, p0p1));
}
else
{
perpVector = CCPointExtension.ccpPerp(CCPointExtension.ccpNormalize(CCPointExtension.ccpSub(p2, p0)));
}
}
perpVector = CCPointExtension.ccpMult(perpVector, stroke);
vertices[idx] = new ccVertex2F(p1.x + perpVector.x, p1.y + perpVector.y);
vertices[idx + 1] = new ccVertex2F(p1.x - perpVector.x, p1.y - perpVector.y);
}
// Validate vertexes
offset = (offset == 0) ? 0 : (offset - 1);
for (int i = offset; i < nuPointsMinus; i++)
{
idx = i * 2;
int idx1 = idx + 2;
ccVertex2F p1 = vertices[idx];
ccVertex2F p2 = vertices[idx + 1];
ccVertex2F p3 = vertices[idx1];
ccVertex2F p4 = vertices[idx1 + 1];
float s = 0f;
//BOOL fixVertex = !ccpLineIntersect(ccp(p1.x, p1.y), ccp(p4.x, p4.y), ccp(p2.x, p2.y), ccp(p3.x, p3.y), &s, &t);
bool fixVertex = !LineIntersect(p1.x, p1.y, p4.x, p4.y, p2.x, p2.y, p3.x, p3.y, out s);
if (!fixVertex)
{
if (s < 0.0f || s > 1.0f)
{
fixVertex = true;
}
}
if (fixVertex)
{
vertices[idx1] = p4;
vertices[idx1 + 1] = p3;
}
}
}
