public void addVertex(float x, float y, float z, float u, float v)
{
warp_Vertex vert = new warp_Vertex(x, y, z);
vert.setUV(u, v);
addVertex(vert);
}
public warp_Vertex getClone()
{
warp_Vertex newVertex = new warp_Vertex();
newVertex.pos = pos.getClone();
newVertex.n = n.getClone();
newVertex.u = u;
newVertex.v = v;
return(newVertex);
}
public static warp_Object ROTATIONOBJECT(warp_Vector[] path, int sides)
{
int steps = sides + 1;
warp_Object newObject = new warp_Object();
double alpha = 2 * pi / ((double)steps - 1);
float qx, qz;
int nodes = path.GetLength(0);
warp_Vertex vertex = null;
float u, v; // Texture coordinates
for (int j = 0; j < steps; j++)
{
u = (float)(steps - j - 1) / (float)(steps - 1);
for (int i = 0; i < nodes; i++)
{
v = (float)i / (float)(nodes - 1);
qx = (float)(path[i].x * Math.Cos(j * alpha) +
path[i].z * Math.Sin(j * alpha));
qz = (float)(path[i].z * Math.Cos(j * alpha) -
path[i].x * Math.Sin(j * alpha));
vertex = new warp_Vertex(qx, path[i].y, qz);
vertex.u = u;
vertex.v = v;
newObject.addVertex(vertex);
}
}
for (int j = 0; j < steps - 1; j++)
{
for (int i = 0; i < nodes - 1; i++)
{
newObject.addTriangle(i + nodes * j, i + nodes * (j + 1),
i + 1 + nodes * j);
newObject.addTriangle(i + nodes * (j + 1),
i + 1 + nodes * (j + 1),
i + 1 + nodes * j);
}
}
for (int i = 0; i < nodes - 1; i++)
{
newObject.addTriangle(i + nodes * (steps - 1), i,
i + 1 + nodes * (steps - 1));
newObject.addTriangle(i, i + 1, i + 1 + nodes * (steps - 1));
}
return(newObject);
}
public warp_Edge(warp_Vertex v1, warp_Vertex v2)
{
a = v1;
b = v2;
}
public bool equals(warp_Vertex v, float tolerance)
{
return(Math.Abs(warp_Vector.sub(pos, v.pos).length()) < tolerance);
}
public bool equals(warp_Vertex v)
{
return((pos.x == v.pos.x) && (pos.y == v.pos.y) && (pos.z == v.pos.z));
}
public static warp_Object TUBE(warp_Vector[] path, float r, int steps, bool closed)
{
warp_Vector[] circle = new warp_Vector[steps];
float angle;
for (int i = 0; i < steps; i++)
{
angle = 2 * 3.14159265f * (float)i / (float)steps;
circle[i] = new warp_Vector(r * warp_Math.cos(angle),
r * warp_Math.sin(angle), 0f);
}
warp_Object newObject = new warp_Object();
int segments = path.GetLength(0);
warp_Vector forward, up, right;
warp_Matrix frenetmatrix;
warp_Vertex tempvertex;
float relx, rely;
int a, b, c, d;
for (int i = 0; i < segments; i++)
{
// Calculate frenet frame matrix
if (i != segments - 1)
{
forward = warp_Vector.sub(path[i + 1], path[i]);
}
else
{
if (!closed)
{
forward = warp_Vector.sub(path[i], path[i - 1]);
}
else
{
forward = warp_Vector.sub(path[1], path[0]);
}
}
forward.normalize();
up = new warp_Vector(0f, 0f, 1f);
right = warp_Vector.getNormal(forward, up);
up = warp_Vector.getNormal(forward, right);
frenetmatrix = new warp_Matrix(right, up, forward);
frenetmatrix.shift(path[i].x, path[i].y, path[i].z);
// Add nodes
relx = (float)i / (float)(segments - 1);
for (int k = 0; k < steps; k++)
{
rely = (float)k / (float)steps;
tempvertex = new warp_Vertex(circle[k].transform(frenetmatrix));
tempvertex.u = relx;
tempvertex.v = rely;
newObject.addVertex(tempvertex);
}
}
for (int i = 0; i < segments - 1; i++)
{
for (int k = 0; k < steps - 1; k++)
{
a = i * steps + k;
b = a + 1;
c = a + steps;
d = b + steps;
newObject.addTriangle(a, c, b);
newObject.addTriangle(b, c, d);
}
a = (i + 1) * steps - 1;
b = a + 1 - steps;
c = a + steps;
d = b + steps;
newObject.addTriangle(a, c, b);
newObject.addTriangle(b, c, d);
}
return(newObject);
}
public warp_Triangle(warp_Vertex a, warp_Vertex b, warp_Vertex c)
{
p1 = a;
p2 = b;
p3 = c;
}
public void removeVertex(warp_Vertex v)
{
vertexData.Remove(v);
}
public void addVertex(warp_Vertex newVertex)
{
newVertex.parent = this;
vertexData.Add(newVertex);
dirty = true;
}
public void addTriangle(warp_Vertex a, warp_Vertex b, warp_Vertex c)
{
addTriangle(new warp_Triangle(a, b, c));
}
private unsafe void drawLine(warp_Vertex a, warp_Vertex b, int color)
{
warp_Vertex temp;
if ((a.clipcode & b.clipcode) != 0)
{
return;
}
dx = (int)Math.Abs(a.x - b.x);
dy = (int)Math.Abs(a.y - b.y);
dz = 0;
fixed(int *sp = screen.pixels, zB = zBuffer)
{
if (dx > dy)
{
if (a.x > b.x)
{
temp = a;
a = b;
b = temp;
}
if (dx > 0)
{
dz = (b.z - a.z) / dx;
dy = ((b.y - a.y) << 16) / dx;
}
z = a.z;
y = a.y << 16;
for (int x = a.x; x <= b.x; x++)
{
int y2 = y >> 16;
if (warp_Math.inrange(x, 0, width - 1) && warp_Math.inrange(y2, 0, height - 1))
{
offset = y2 * width + x;
if (z < zB[offset])
{
{
sp[offset] = color;
zB[offset] = z;
}
}
}
z += dz;
y += dy;
}
}
else
{
if (a.y > b.y)
{
temp = a;
a = b;
b = temp;
}
if (dy > 0)
{
dz = (b.z - a.z) / dy;
dx = ((b.x - a.x) << 16) / dy;
}
z = a.z;
int x = a.x << 16;
for (y = a.y; y <= b.y; y++)
{
int x2 = x >> 16;
if (warp_Math.inrange(x2, 0, width - 1) && warp_Math.inrange(y, 0, height - 1))
{
offset = y * width + x2;
if (z < zB[offset])
{
{
sp[offset] = color;
zB[offset] = z;
}
}
}
z += dz;
x += dx;
}
}
}
}
public void render(warp_Triangle tri)
{
if (!ready || tri.parent == null)
{
return;
}
if ((mode & W) != 0)
{
drawWireframe(tri, color);
if ((mode & ~W) == 0)
{
return;
}
}
warp_Vertex p1 = tri.p1;
warp_Vertex p2 = tri.p2;
warp_Vertex p3 = tri.p3;
warp_Vertex tempVertex;
if (p1.y > p2.y)
{
tempVertex = p1;
p1 = p2;
p2 = tempVertex;
}
if (p2.y > p3.y)
{
tempVertex = p2;
p2 = p3;
p3 = tempVertex;
}
if (p1.y > p2.y)
{
tempVertex = p1;
p1 = p2;
p2 = tempVertex;
}
if (p1.y >= height)
{
return;
}
if (p3.y < 0)
{
return;
}
if (p1.y == p3.y)
{
return;
}
if (mode == F)
{
int lutID = (int)(tri.n2.x * 127 + 127) + ((int)(tri.n2.y * 127 + 127) << 8);
int c = warp_Color.multiply(color, diffuse[lutID]);
int s = warp_Color.scale(specular[lutID], reflectivity);
currentColor = warp_Color.add(c, s);
}
int x1 = p1.x << 8;
int x2 = p2.x << 8;
int x3 = p3.x << 8;
int y1 = p1.y;
int y2 = p2.y;
int y3 = p3.y;
dy = y2 - y1;
int dy31 = y3 - y1;
float tf = (float)dy / dy31;
int x4 = x1 + (int)((x3 - x1) * tf);
dx = (x4 - x2) >> 8;
if (dx == 0)
{
return;
}
x1 <<= 8;
x2 <<= 8;
x3 <<= 8;
x4 <<= 8;
//temp = (dy21 << 8) / dy31;
int z1 = p1.z;
int z3 = p3.z;
//z4 = z1 + ((z3 - z1) >> 8) * temp;
int z4 = z1 + (int)((z3 - z1) * tf);
int z2 = p2.z;
dz = (z4 - z2) / dx;
int nx1 = p1.nx;
int nx3 = p3.nx;
//nx4 = nx1 + ((nx3 - nx1) >> 8) * temp;
int nx4 = nx1 + (int)((nx3 - nx1) * tf);
int nx2 = p2.nx;
dnx = (nx4 - nx2) / dx;
int ny1 = p1.ny;
int ny3 = p3.ny;
//ny4 = ny1 + ((ny3 - ny1) >> 8) * temp;
int ny4 = ny1 + (int)((ny3 - ny1) * tf);
int ny2 = p2.ny;
dny = (ny4 - ny2) / dx;
float tx1 = p1.tx * tw;
float tx3 = p3.tx * tw;
float tx4 = tx1 + ((tx3 - tx1) * tf);
float tx2 = p2.tx * tw;
dtx = (tx4 - tx2) / dx;
float ty1 = p1.ty * th;
float ty3 = p3.ty * th;
float ty4 = ty1 + ((ty3 - ty1) * tf);
float ty2 = p2.ty * th;
dty = (ty4 - ty2) / dx;
float sw1 = p1.invZ;
float sw3 = p3.invZ;
float sw4 = sw1 + ((sw3 - sw1) * tf);
float sw2 = p2.invZ;
dsw = (sw4 - sw2) / dx;
if (dx < 0)
{
int temp = x2;
x2 = x4;
x4 = temp;
z2 = z4;
tx2 = tx4;
ty2 = ty4;
sw2 = sw4;
nx2 = nx4;
ny2 = ny4;
}
if (y2 >= 0 && dy > 0)
{
dxL = (x2 - x1) / dy;
dxR = (x4 - x1) / dy;
dzBase = (z2 - z1) / dy;
dnxBase = (nx2 - nx1) / dy;
dnyBase = (ny2 - ny1) / dy;
dtxBase = (tx2 - tx1) / dy;
dtyBase = (ty2 - ty1) / dy;
dswBase = (sw2 - sw1) / dy;
xBase = x1;
xMax = x1;
zBase = z1;
nxBase = nx1;
nyBase = ny1;
txBase = tx1;
tyBase = ty1;
swBase = sw1;
if (y1 < 0)
{
xBase -= y1 * dxL;
xMax -= y1 * dxR;
zBase -= y1 * dzBase;
nxBase -= y1 * dnxBase;
nyBase -= y1 * dnyBase;
txBase -= y1 * dtxBase;
tyBase -= y1 * dtyBase;
swBase -= y1 * dswBase;
y1 = 0;
}
if (y2 > height)
{
y2 = height;
}
offset = y1 * width;
for (y = y1; y < y2; y++)
{
renderLine();
}
}
dy = y3 - y2;
if (y2 < height && dy > 0)
{
dxL = (x3 - x2) / dy;
dxR = (x3 - x4) / dy;
dzBase = (z3 - z2) / dy;
dnxBase = (nx3 - nx2) / dy;
dnyBase = (ny3 - ny2) / dy;
dtxBase = (tx3 - tx2) / dy;
dtyBase = (ty3 - ty2) / dy;
dswBase = (sw3 - sw2) / dy;
xBase = x2;
xMax = x4;
zBase = z2;
nxBase = nx2;
nyBase = ny2;
txBase = tx2;
tyBase = ty2;
swBase = sw2;
if (y2 < 0)
{
xBase -= y2 * dxL;
xMax -= y2 * dxR;
zBase -= y2 * dzBase;
nxBase -= y2 * dnxBase;
nyBase -= y2 * dnyBase;
txBase -= y2 * dtxBase;
tyBase -= y2 * dtyBase;
swBase -= y2 * dswBase;
y2 = 0;
}
if (y3 > height)
{
y3 = height;
}
offset = y2 * width;
for (y = y2; y < y3; y++)
{
renderLine();
}
}
}
