37239732ac
- Globe Asset - Spatial Anchors - Photon Implementation - Scripts for Globe Control and Initial Country Colorizing - Script for Reading csv file
89 lines
3.2 KiB
C#
89 lines
3.2 KiB
C#
using UnityEngine;
|
|
using System.Collections;
|
|
|
|
|
|
namespace WPM.PolygonTools {
|
|
public class Line2D {
|
|
public readonly Vector2 P1;
|
|
public readonly Vector2 P2;
|
|
public readonly float sqrMagnitude;
|
|
public readonly double slopeX, slopeY;
|
|
double X1 = 0;
|
|
double X2 = 0;
|
|
double Y1 = 0;
|
|
double Y2 = 0;
|
|
|
|
public Line2D (Vector2 p1, Vector2 p2) {
|
|
P1 = p1;
|
|
P2 = p2;
|
|
X1 = p1.x;
|
|
X2 = p2.x;
|
|
Y1 = p1.y;
|
|
Y2 = p2.y;
|
|
slopeX = X2 - X1;
|
|
slopeY = Y2 - Y1;
|
|
sqrMagnitude = (P2 - P1).sqrMagnitude;
|
|
}
|
|
|
|
public bool intersectsLine (Line2D comparedLine) {
|
|
if (X2 == comparedLine.X1 && Y2 == comparedLine.Y1) {
|
|
return false;
|
|
}
|
|
|
|
if (X1 == comparedLine.X2 && Y1 == comparedLine.Y2) {
|
|
return false;
|
|
}
|
|
|
|
double s, t, w;
|
|
w = slopeX * comparedLine.slopeY - comparedLine.slopeX * slopeY;
|
|
s = (slopeX * (Y1 - comparedLine.Y1) - slopeY * (X1 - comparedLine.X1)) / w;
|
|
t = (comparedLine.slopeX * (Y1 - comparedLine.Y1) - comparedLine.slopeY * (X1 - comparedLine.X1)) / w;
|
|
|
|
if (s >= 0 && s <= 1 && t >= 0 && t <= 1) {
|
|
return true;
|
|
}
|
|
|
|
return false; // No collision
|
|
}
|
|
|
|
// Unoptimized code
|
|
// public bool intersectsLine (Line2D comparedLine)
|
|
// {
|
|
// if (X2 == comparedLine.X1 && Y2 == comparedLine.Y1) {
|
|
// return false;
|
|
// }
|
|
//
|
|
// if (X1 == comparedLine.X2 && Y1 == comparedLine.Y2) {
|
|
// return false;
|
|
// }
|
|
// double firstLineSlopeX, firstLineSlopeY, secondLineSlopeX, secondLineSlopeY;
|
|
//
|
|
// firstLineSlopeX = X2 - X1;
|
|
// firstLineSlopeY = Y2 - Y1;
|
|
// secondLineSlopeX = comparedLine.X2 - comparedLine.X1;
|
|
// secondLineSlopeY = comparedLine.Y2 - comparedLine.Y1;
|
|
//
|
|
// double s, t, w;
|
|
// w = -secondLineSlopeX * firstLineSlopeY + firstLineSlopeX * secondLineSlopeY;
|
|
// s = (-firstLineSlopeY * (X1 - comparedLine.X1) + firstLineSlopeX * (Y1 - comparedLine.Y1 )) / w;
|
|
// t = (secondLineSlopeX * (Y1 - comparedLine.Y1) - secondLineSlopeY * (X1 - comparedLine.X1)) / w;
|
|
// // s = (-firstLineSlopeY * (X1 - comparedLine.X1) + firstLineSlopeX * (Y1 - comparedLine.Y1 )) / (-secondLineSlopeX * firstLineSlopeY + firstLineSlopeX * secondLineSlopeY);
|
|
// // t = (secondLineSlopeX * (Y1 - comparedLine.Y1) - secondLineSlopeY * (X1 - comparedLine.X1)) / (-secondLineSlopeX * firstLineSlopeY + firstLineSlopeX * secondLineSlopeY);
|
|
//
|
|
// if (s >= 0 && s <= 1 && t >= 0 && t <= 1) {
|
|
// return true;
|
|
// }
|
|
//
|
|
// return false; // No collision
|
|
// }
|
|
|
|
public override int GetHashCode () {
|
|
return (X1 * 1000 + X2 * 1000 + Y1 * 1000 + Y2 * 1000).GetHashCode ();
|
|
}
|
|
|
|
public override bool Equals (object obj) {
|
|
return (obj.GetHashCode () == this.GetHashCode ());
|
|
}
|
|
|
|
}
|
|
} |