// Generate random point in polygon
public static GTAVector RandPointInPoly(GTALocation x)
{
float maxX = float.MinValue;
float maxY = float.MinValue;
float minX = float.MaxValue;
float minY = float.MaxValue;
float avgZ = 0f;
foreach (GTAVector v in x.ROI)
{
maxX = Math.Max(maxX, v.X);
maxY = Math.Max(maxY, v.Y);
minX = Math.Min(minX, v.X);
minY = Math.Min(minY, v.Y);
avgZ += v.Z;
}
avgZ /= x.ROI.Count;
avgZ += 0.5f;
while (true)
{
GTAVector v = new GTAVector(random.NextFloat(minX, maxX), random.NextFloat(minY, maxY), avgZ);
if (PointInPoly(x, v))
{
return(v);
}
}
}
public static GTAVector Lerp(GTAVector from, GTAVector to, float by)
{
var x = from.X * (1 - by) + to.X * by;
var y = from.Y * (1 - by) + to.Y * by;
var z = from.Z * (1 - by) + to.Z * by;
return(new GTAVector(x, y, z));
}
public static bool PointInPoly(GTALocation loc, GTAVector v)
{
int max_point = loc.ROI.Count - 1;
float total_angle = GetAngle(loc.ROI[max_point].X, loc.ROI[max_point].Y, v.X, v.Y, loc.ROI[0].X, loc.ROI[0].Y);
for (int i = 0; i < max_point; i++)
{
total_angle += GetAngle(
loc.ROI[i].X, loc.ROI[i].Y,
v.X, v.Y,
loc.ROI[i + 1].X, loc.ROI[i + 1].Y);
}
return(Math.Abs(total_angle) > 1);
}
public static void Draw3DLine(GTAVector iniPos, GTAVector finPos, byte col_r = 255, byte col_g = 255, byte col_b = 255, byte col_a = 255)
{
Function.Call(Hash.DRAW_LINE, new InputArgument[]
{
iniPos.X,
iniPos.Y,
iniPos.Z,
finPos.X,
finPos.Y,
finPos.Z,
(int)col_r,
(int)col_g,
(int)col_b,
(int)col_a
});
}
public static float PolygonArea(List <GTAVector> ROI)
{
int count = ROI.Count;
GTAVector[] pts = new GTAVector[count + 1];
ROI.CopyTo(pts, 0);
pts[count] = ROI[0];
double area = 0;
for (int i = 0; i < count; i++)
{
area +=
(pts[i + 1].X - pts[i].X) *
(pts[i + 1].Y + pts[i].Y) / 2;
}
return((float)Math.Abs(area));
}
public static Vector2 Convert3dTo2d(GTAVector pos, out bool success)
{
OutputArgument tmpResX = new OutputArgument();
OutputArgument tmpResY = new OutputArgument();
success = Function.Call <bool>(Hash.GET_SCREEN_COORD_FROM_WORLD_COORD, (InputArgument)pos.X, (InputArgument)pos.Y, (InputArgument)pos.Z, (InputArgument)tmpResX, (InputArgument)tmpResY);
if (success)
{
Vector2 v2;
v2.X = tmpResX.GetResult <float>();
v2.Y = tmpResY.GetResult <float>();
return(v2);
}
else
{
return(new Vector2(-1f, -1f));
}
}
public static double EuclideanDistance(GTAVector p1, GTAVector p2)
{
return(Math.Sqrt(Math.Pow(p1.X - p2.X, 2) + Math.Pow(p1.Y - p2.Y, 2)));
}
public GTABoundingBox(Entity e)
{
var dim = new GTAVector();
var e1 = new GTAVector();
var e2 = new GTAVector();
var e3 = new GTAVector();
var e4 = new GTAVector();
var e5 = new GTAVector();
var e6 = new GTAVector();
var e7 = new GTAVector();
var e8 = new GTAVector();
(var gmin, var gmax) = e.Model.Dimensions;
var rightVector = e.ForwardVector;
var upVector = e.UpVector;
var forwardVector = e.RightVector;
var position = e.Position;
//Calculate siZe
dim.X = 0.5f * (gmax.X - gmin.X);
dim.Y = 0.5f * (gmax.Y - gmin.Y);
dim.Z = 0.5f * (gmax.Z - gmin.Z);
e1.X = position.X - dim.Y * rightVector.X - dim.X * forwardVector.X - dim.Z * upVector.X;
e1.Y = position.Y - dim.Y * rightVector.Y - dim.X * forwardVector.Y - dim.Z * upVector.Y;
e1.Z = position.Z - dim.Y * rightVector.Z - dim.X * forwardVector.Z - dim.Z * upVector.Z;
e2.X = e1.X + 2 * dim.Y * rightVector.X;
e2.Y = e1.Y + 2 * dim.Y * rightVector.Y;
e2.Z = e1.Z + 2 * dim.Y * rightVector.Z;
e3.X = e2.X + 2 * dim.Z * upVector.X;
e3.Y = e2.Y + 2 * dim.Z * upVector.Y;
e3.Z = e2.Z + 2 * dim.Z * upVector.Z;
e4.X = e1.X + 2 * dim.Z * upVector.X;
e4.Y = e1.Y + 2 * dim.Z * upVector.Y;
e4.Z = e1.Z + 2 * dim.Z * upVector.Z;
e5.X = position.X + dim.Y * rightVector.X + dim.X * forwardVector.X + dim.Z * upVector.X;
e5.Y = position.Y + dim.Y * rightVector.Y + dim.X * forwardVector.Y + dim.Z * upVector.Y;
e5.Z = position.Z + dim.Y * rightVector.Z + dim.X * forwardVector.Z + dim.Z * upVector.Z;
e6.X = e5.X - 2 * dim.Y * rightVector.X;
e6.Y = e5.Y - 2 * dim.Y * rightVector.Y;
e6.Z = e5.Z - 2 * dim.Y * rightVector.Z;
e7.X = e6.X - 2 * dim.Z * upVector.X;
e7.Y = e6.Y - 2 * dim.Z * upVector.Y;
e7.Z = e6.Z - 2 * dim.Z * upVector.Z;
e8.X = e5.X - 2 * dim.Z * upVector.X;
e8.Y = e5.Y - 2 * dim.Z * upVector.Y;
e8.Z = e5.Z - 2 * dim.Z * upVector.Z;
CornerPoints = new GTAVector[] { e1, e2, e3, e4, e5, e6, e7, e8 };
foreach (GTAVector v in CornerPoints)
{
x_max = Math.Max(x_max, v.X);
x_min = Math.Min(x_min, v.X);
y_max = Math.Max(y_max, v.Y);
y_min = Math.Min(y_min, v.Y);
z_max = Math.Max(z_max, v.Z);
z_min = Math.Min(z_min, v.Z);
}
}
public bool Contains(GTAVector p)
{
return((p.X <= x_max && p.X >= x_min) && (p.Y <= y_max && p.Y >= y_min) && (p.Z <= z_max && p.Z >= z_min));
}
