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1 module tk.geometry2;
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2
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3 private import std.stdio;
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4 private import std.math;
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5
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6 struct Point2 {
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7 this(in double x, in double y) {
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8 _x = x;
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9 _y = y;
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10 }
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11
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12 Point2 opAdd(in Vector2 v) const {
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13 return Point2(_x + v._x, _y + v._y);
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14 }
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15
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16 Point2 opSub(in Vector2 v) const {
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17 return Point2(_x - v._x, _y - v._y);
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18 }
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19
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20 Vector2 opSub(in Point2 p) const {
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21 return Vector2(_x - p._x, _y - p._y);
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22 }
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23
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24 string toString() /* const */ {
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25 return std.string.format("(%f, %f)", _x, _y);
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26 }
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27
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28 double x() const { return _x; }
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29 double y() const { return _y; }
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30
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31 private {
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32 double _x, _y;
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33 }
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34 }
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35
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36 struct Vector2 {
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37 this(in double x, in double y) {
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38 _x = x;
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39 _y = y;
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40 }
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41
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42 Vector2 opAdd(in Vector2 v) const {
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43 return Vector2(_x + v._x, _y + v._y);
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44 }
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45
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46 Vector2 opSub(in Vector2 v) const {
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47 return Vector2(_x - v._x, _y - v._y);
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48 }
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49
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50 Vector2 opNeg() const {
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51 return Vector2(-_x, -_y);
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52 }
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53
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54 Vector2 opMul_r(double d) const {
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55 return Vector2(d * _x, d * _y);
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56 }
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57
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58 Vector2 opDiv(double d) const {
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59 return Vector2(_x / d, _y / d);
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60 }
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61
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62 double length() const {
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63 return sqrt(_x * _x + _y * _y);
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64 }
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65
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66 string toString() /* const */ {
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67 return std.string.format("[%f, %f]", _x, _y);
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68 }
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69
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70 double x() const { return _x; }
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71 double y() const { return _y; }
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72
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73 private {
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74 double _x, _y;
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75 }
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76 }
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77
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78 struct Rectangle2 {
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79 this(in Point2 position, Vector2 size) {
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80 this(position.x, position.y, size.x, size.y);
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81 }
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82
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83 this(Point2 corner1, Point2 corner2) {
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84 this(corner1.x, corner1.y, corner2.x - corner1.x, corner2.y - corner1.y);
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85 }
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86
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87 // Intersection
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88 Rectangle2 opAnd(in Rectangle2 r) const {
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89 // FIXME
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90 return Rectangle2(3.2, 5.3, 3.2, 2.3);
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91 }
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92
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93 // Union
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94 Rectangle2 opOr(in Rectangle2 r) const {
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95 // FIXME
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96 return Rectangle2(3.2, 5.3, 5.8, 2.1);
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97 }
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98
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99 string toString() {
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100 return std.string.format("{%s, %s}", mPosition, mSize);
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101 }
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102
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103 private {
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104 this(double x, double y, double w, double h) {
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105 if (w < 0.0) { x += w; w = -w; }
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106 if (h < 0.0) { y += h; h = -h; }
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107 mPosition = Point2(x, y);
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108 mSize = Vector2(w, h);
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109 }
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110
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111 Point2 mPosition;
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112 Vector2 mSize;
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113 }
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114 }
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