| 1 | /**************************************************************************/ | 
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| 2 | /*  godot_shape_2d.h                                                      */ | 
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| 3 | /**************************************************************************/ | 
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| 4 | /*                         This file is part of:                          */ | 
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| 5 | /*                             GODOT ENGINE                               */ | 
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| 6 | /*                        https://godotengine.org                         */ | 
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| 7 | /**************************************************************************/ | 
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| 8 | /* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */ | 
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| 9 | /* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur.                  */ | 
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| 10 | /*                                                                        */ | 
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| 11 | /* Permission is hereby granted, free of charge, to any person obtaining  */ | 
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| 12 | /* a copy of this software and associated documentation files (the        */ | 
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| 13 | /* "Software"), to deal in the Software without restriction, including    */ | 
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| 14 | /* without limitation the rights to use, copy, modify, merge, publish,    */ | 
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| 15 | /* distribute, sublicense, and/or sell copies of the Software, and to     */ | 
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| 16 | /* permit persons to whom the Software is furnished to do so, subject to  */ | 
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| 17 | /* the following conditions:                                              */ | 
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| 18 | /*                                                                        */ | 
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| 19 | /* The above copyright notice and this permission notice shall be         */ | 
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| 20 | /* included in all copies or substantial portions of the Software.        */ | 
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| 21 | /*                                                                        */ | 
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| 22 | /* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,        */ | 
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| 23 | /* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF     */ | 
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| 24 | /* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */ | 
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| 25 | /* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY   */ | 
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| 26 | /* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,   */ | 
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| 27 | /* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE      */ | 
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| 28 | /* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.                 */ | 
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| 29 | /**************************************************************************/ | 
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| 30 |  | 
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| 31 | #ifndef GODOT_SHAPE_2D_H | 
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| 32 | #define GODOT_SHAPE_2D_H | 
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| 33 |  | 
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| 34 | #include "servers/physics_server_2d.h" | 
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| 35 |  | 
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| 36 | class GodotShape2D; | 
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| 37 |  | 
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| 38 | class GodotShapeOwner2D { | 
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| 39 | public: | 
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| 40 | virtual void _shape_changed() = 0; | 
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| 41 | virtual void remove_shape(GodotShape2D *p_shape) = 0; | 
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| 42 |  | 
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| 43 | virtual ~GodotShapeOwner2D() {} | 
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| 44 | }; | 
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| 45 |  | 
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| 46 | class GodotShape2D { | 
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| 47 | RID self; | 
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| 48 | Rect2 aabb; | 
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| 49 | bool configured = false; | 
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| 50 | real_t custom_bias = 0.0; | 
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| 51 |  | 
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| 52 | HashMap<GodotShapeOwner2D *, int> owners; | 
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| 53 |  | 
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| 54 | protected: | 
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| 55 | const double segment_is_valid_support_threshold = 0.99998; | 
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| 56 | const double segment_is_valid_support_threshold_lower = | 
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| 57 | Math::sqrt(1.0 - segment_is_valid_support_threshold * segment_is_valid_support_threshold); | 
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| 58 |  | 
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| 59 | void configure(const Rect2 &p_aabb); | 
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| 60 |  | 
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| 61 | public: | 
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| 62 | _FORCE_INLINE_ void set_self(const RID &p_self) { self = p_self; } | 
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| 63 | _FORCE_INLINE_ RID get_self() const { return self; } | 
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| 64 |  | 
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| 65 | virtual PhysicsServer2D::ShapeType get_type() const = 0; | 
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| 66 |  | 
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| 67 | _FORCE_INLINE_ Rect2 get_aabb() const { return aabb; } | 
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| 68 | _FORCE_INLINE_ bool is_configured() const { return configured; } | 
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| 69 |  | 
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| 70 | virtual bool allows_one_way_collision() const { return true; } | 
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| 71 |  | 
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| 72 | virtual bool is_concave() const { return false; } | 
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| 73 |  | 
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| 74 | virtual bool contains_point(const Vector2 &p_point) const = 0; | 
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| 75 |  | 
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| 76 | virtual void project_rangev(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const = 0; | 
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| 77 | virtual void project_range_castv(const Vector2 &p_cast, const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const = 0; | 
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| 78 | virtual Vector2 get_support(const Vector2 &p_normal) const; | 
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| 79 | virtual void get_supports(const Vector2 &p_normal, Vector2 *r_supports, int &r_amount) const = 0; | 
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| 80 |  | 
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| 81 | virtual bool intersect_segment(const Vector2 &p_begin, const Vector2 &p_end, Vector2 &r_point, Vector2 &r_normal) const = 0; | 
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| 82 | virtual real_t get_moment_of_inertia(real_t p_mass, const Size2 &p_scale) const = 0; | 
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| 83 | virtual void set_data(const Variant &p_data) = 0; | 
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| 84 | virtual Variant get_data() const = 0; | 
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| 85 |  | 
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| 86 | _FORCE_INLINE_ void set_custom_bias(real_t p_bias) { custom_bias = p_bias; } | 
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| 87 | _FORCE_INLINE_ real_t get_custom_bias() const { return custom_bias; } | 
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| 88 |  | 
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| 89 | void add_owner(GodotShapeOwner2D *p_owner); | 
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| 90 | void remove_owner(GodotShapeOwner2D *p_owner); | 
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| 91 | bool is_owner(GodotShapeOwner2D *p_owner) const; | 
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| 92 | const HashMap<GodotShapeOwner2D *, int> &get_owners() const; | 
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| 93 |  | 
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| 94 | _FORCE_INLINE_ void get_supports_transformed_cast(const Vector2 &p_cast, const Vector2 &p_normal, const Transform2D &p_xform, Vector2 *r_supports, int &r_amount) const { | 
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| 95 | get_supports(p_xform.basis_xform_inv(p_normal).normalized(), r_supports, r_amount); | 
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| 96 | for (int i = 0; i < r_amount; i++) { | 
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| 97 | r_supports[i] = p_xform.xform(r_supports[i]); | 
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| 98 | } | 
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| 99 |  | 
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| 100 | if (r_amount == 1) { | 
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| 101 | if (Math::abs(p_normal.dot(p_cast.normalized())) < segment_is_valid_support_threshold_lower) { | 
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| 102 | //make line because they are parallel | 
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| 103 | r_amount = 2; | 
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| 104 | r_supports[1] = r_supports[0] + p_cast; | 
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| 105 | } else if (p_cast.dot(p_normal) > 0) { | 
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| 106 | //normal points towards cast, add cast | 
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| 107 | r_supports[0] += p_cast; | 
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| 108 | } | 
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| 109 |  | 
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| 110 | } else { | 
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| 111 | if (Math::abs(p_normal.dot(p_cast.normalized())) < segment_is_valid_support_threshold_lower) { | 
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| 112 | //optimize line and make it larger because they are parallel | 
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| 113 | if ((r_supports[1] - r_supports[0]).dot(p_cast) > 0) { | 
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| 114 | //larger towards 1 | 
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| 115 | r_supports[1] += p_cast; | 
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| 116 | } else { | 
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| 117 | //larger towards 0 | 
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| 118 | r_supports[0] += p_cast; | 
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| 119 | } | 
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| 120 | } else if (p_cast.dot(p_normal) > 0) { | 
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| 121 | //normal points towards cast, add cast | 
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| 122 | r_supports[0] += p_cast; | 
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| 123 | r_supports[1] += p_cast; | 
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| 124 | } | 
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| 125 | } | 
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| 126 | } | 
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| 127 | GodotShape2D() {} | 
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| 128 | virtual ~GodotShape2D(); | 
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| 129 | }; | 
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| 130 |  | 
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| 131 | //let the optimizer do the magic | 
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| 132 | #define DEFAULT_PROJECT_RANGE_CAST                                                                                                                                  \ | 
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| 133 | virtual void project_range_castv(const Vector2 &p_cast, const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const override { \ | 
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| 134 | project_range_cast(p_cast, p_normal, p_transform, r_min, r_max);                                                                                            \ | 
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| 135 | }                                                                                                                                                               \ | 
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| 136 | _FORCE_INLINE_ void project_range_cast(const Vector2 &p_cast, const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const {    \ | 
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| 137 | real_t mina, maxa;                                                                                                                                          \ | 
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| 138 | real_t minb, maxb;                                                                                                                                          \ | 
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| 139 | Transform2D ofsb = p_transform;                                                                                                                             \ | 
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| 140 | ofsb.columns[2] += p_cast;                                                                                                                                  \ | 
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| 141 | project_range(p_normal, p_transform, mina, maxa);                                                                                                           \ | 
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| 142 | project_range(p_normal, ofsb, minb, maxb);                                                                                                                  \ | 
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| 143 | r_min = MIN(mina, minb);                                                                                                                                    \ | 
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| 144 | r_max = MAX(maxa, maxb);                                                                                                                                    \ | 
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| 145 | } | 
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| 146 |  | 
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| 147 | class GodotWorldBoundaryShape2D : public GodotShape2D { | 
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| 148 | Vector2 normal; | 
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| 149 | real_t d = 0.0; | 
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| 150 |  | 
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| 151 | public: | 
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| 152 | _FORCE_INLINE_ Vector2 get_normal() const { return normal; } | 
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| 153 | _FORCE_INLINE_ real_t get_d() const { return d; } | 
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| 154 |  | 
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| 155 | virtual PhysicsServer2D::ShapeType get_type() const override { return PhysicsServer2D::SHAPE_WORLD_BOUNDARY; } | 
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| 156 |  | 
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| 157 | virtual void project_rangev(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const override { project_range(p_normal, p_transform, r_min, r_max); } | 
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| 158 | virtual void get_supports(const Vector2 &p_normal, Vector2 *r_supports, int &r_amount) const override; | 
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| 159 |  | 
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| 160 | virtual bool contains_point(const Vector2 &p_point) const override; | 
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| 161 | virtual bool intersect_segment(const Vector2 &p_begin, const Vector2 &p_end, Vector2 &r_point, Vector2 &r_normal) const override; | 
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| 162 | virtual real_t get_moment_of_inertia(real_t p_mass, const Size2 &p_scale) const override; | 
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| 163 |  | 
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| 164 | virtual void set_data(const Variant &p_data) override; | 
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| 165 | virtual Variant get_data() const override; | 
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| 166 |  | 
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| 167 | _FORCE_INLINE_ void project_range(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const { | 
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| 168 | //real large | 
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| 169 | r_min = -1e10; | 
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| 170 | r_max = 1e10; | 
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| 171 | } | 
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| 172 |  | 
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| 173 | virtual void project_range_castv(const Vector2 &p_cast, const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const override { | 
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| 174 | project_range_cast(p_cast, p_normal, p_transform, r_min, r_max); | 
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| 175 | } | 
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| 176 |  | 
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| 177 | _FORCE_INLINE_ void project_range_cast(const Vector2 &p_cast, const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const { | 
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| 178 | //real large | 
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| 179 | r_min = -1e10; | 
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| 180 | r_max = 1e10; | 
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| 181 | } | 
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| 182 | }; | 
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| 183 |  | 
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| 184 | class GodotSeparationRayShape2D : public GodotShape2D { | 
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| 185 | real_t length = 0.0; | 
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| 186 | bool slide_on_slope = false; | 
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| 187 |  | 
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| 188 | public: | 
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| 189 | _FORCE_INLINE_ real_t get_length() const { return length; } | 
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| 190 | _FORCE_INLINE_ bool get_slide_on_slope() const { return slide_on_slope; } | 
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| 191 |  | 
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| 192 | virtual PhysicsServer2D::ShapeType get_type() const override { return PhysicsServer2D::SHAPE_SEPARATION_RAY; } | 
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| 193 |  | 
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| 194 | virtual bool allows_one_way_collision() const override { return false; } | 
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| 195 |  | 
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| 196 | virtual void project_rangev(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const override { project_range(p_normal, p_transform, r_min, r_max); } | 
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| 197 | virtual void get_supports(const Vector2 &p_normal, Vector2 *r_supports, int &r_amount) const override; | 
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| 198 |  | 
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| 199 | virtual bool contains_point(const Vector2 &p_point) const override; | 
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| 200 | virtual bool intersect_segment(const Vector2 &p_begin, const Vector2 &p_end, Vector2 &r_point, Vector2 &r_normal) const override; | 
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| 201 | virtual real_t get_moment_of_inertia(real_t p_mass, const Size2 &p_scale) const override; | 
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| 202 |  | 
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| 203 | virtual void set_data(const Variant &p_data) override; | 
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| 204 | virtual Variant get_data() const override; | 
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| 205 |  | 
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| 206 | _FORCE_INLINE_ void project_range(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const { | 
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| 207 | //real large | 
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| 208 | r_max = p_normal.dot(p_transform.get_origin()); | 
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| 209 | r_min = p_normal.dot(p_transform.xform(Vector2(0, length))); | 
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| 210 | if (r_max < r_min) { | 
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| 211 | SWAP(r_max, r_min); | 
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| 212 | } | 
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| 213 | } | 
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| 214 |  | 
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| 215 | DEFAULT_PROJECT_RANGE_CAST | 
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| 216 |  | 
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| 217 | _FORCE_INLINE_ GodotSeparationRayShape2D() {} | 
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| 218 | _FORCE_INLINE_ GodotSeparationRayShape2D(real_t p_length) { length = p_length; } | 
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| 219 | }; | 
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| 220 |  | 
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| 221 | class GodotSegmentShape2D : public GodotShape2D { | 
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| 222 | Vector2 a; | 
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| 223 | Vector2 b; | 
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| 224 | Vector2 n; | 
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| 225 |  | 
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| 226 | public: | 
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| 227 | _FORCE_INLINE_ const Vector2 &get_a() const { return a; } | 
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| 228 | _FORCE_INLINE_ const Vector2 &get_b() const { return b; } | 
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| 229 | _FORCE_INLINE_ const Vector2 &get_normal() const { return n; } | 
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| 230 |  | 
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| 231 | virtual PhysicsServer2D::ShapeType get_type() const override { return PhysicsServer2D::SHAPE_SEGMENT; } | 
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| 232 |  | 
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| 233 | _FORCE_INLINE_ Vector2 get_xformed_normal(const Transform2D &p_xform) const { | 
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| 234 | return (p_xform.xform(b) - p_xform.xform(a)).normalized().orthogonal(); | 
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| 235 | } | 
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| 236 | virtual void project_rangev(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const override { project_range(p_normal, p_transform, r_min, r_max); } | 
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| 237 | virtual void get_supports(const Vector2 &p_normal, Vector2 *r_supports, int &r_amount) const override; | 
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| 238 |  | 
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| 239 | virtual bool contains_point(const Vector2 &p_point) const override; | 
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| 240 | virtual bool intersect_segment(const Vector2 &p_begin, const Vector2 &p_end, Vector2 &r_point, Vector2 &r_normal) const override; | 
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| 241 | virtual real_t get_moment_of_inertia(real_t p_mass, const Size2 &p_scale) const override; | 
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| 242 |  | 
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| 243 | virtual void set_data(const Variant &p_data) override; | 
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| 244 | virtual Variant get_data() const override; | 
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| 245 |  | 
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| 246 | _FORCE_INLINE_ void project_range(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const { | 
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| 247 | //real large | 
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| 248 | r_max = p_normal.dot(p_transform.xform(a)); | 
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| 249 | r_min = p_normal.dot(p_transform.xform(b)); | 
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| 250 | if (r_max < r_min) { | 
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| 251 | SWAP(r_max, r_min); | 
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| 252 | } | 
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| 253 | } | 
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| 254 |  | 
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| 255 | DEFAULT_PROJECT_RANGE_CAST | 
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| 256 |  | 
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| 257 | _FORCE_INLINE_ GodotSegmentShape2D() {} | 
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| 258 | _FORCE_INLINE_ GodotSegmentShape2D(const Vector2 &p_a, const Vector2 &p_b, const Vector2 &p_n) { | 
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| 259 | a = p_a; | 
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| 260 | b = p_b; | 
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| 261 | n = p_n; | 
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| 262 | } | 
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| 263 | }; | 
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| 264 |  | 
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| 265 | class GodotCircleShape2D : public GodotShape2D { | 
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| 266 | real_t radius; | 
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| 267 |  | 
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| 268 | public: | 
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| 269 | _FORCE_INLINE_ const real_t &get_radius() const { return radius; } | 
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| 270 |  | 
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| 271 | virtual PhysicsServer2D::ShapeType get_type() const override { return PhysicsServer2D::SHAPE_CIRCLE; } | 
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| 272 |  | 
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| 273 | virtual void project_rangev(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const override { project_range(p_normal, p_transform, r_min, r_max); } | 
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| 274 | virtual void get_supports(const Vector2 &p_normal, Vector2 *r_supports, int &r_amount) const override; | 
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| 275 |  | 
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| 276 | virtual bool contains_point(const Vector2 &p_point) const override; | 
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| 277 | virtual bool intersect_segment(const Vector2 &p_begin, const Vector2 &p_end, Vector2 &r_point, Vector2 &r_normal) const override; | 
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| 278 | virtual real_t get_moment_of_inertia(real_t p_mass, const Size2 &p_scale) const override; | 
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| 279 |  | 
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| 280 | virtual void set_data(const Variant &p_data) override; | 
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| 281 | virtual Variant get_data() const override; | 
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| 282 |  | 
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| 283 | _FORCE_INLINE_ void project_range(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const { | 
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| 284 | //real large | 
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| 285 | real_t d = p_normal.dot(p_transform.get_origin()); | 
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| 286 |  | 
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| 287 | // figure out scale at point | 
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| 288 | Vector2 local_normal = p_transform.basis_xform_inv(p_normal); | 
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| 289 | real_t scale = local_normal.length(); | 
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| 290 |  | 
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| 291 | r_min = d - (radius)*scale; | 
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| 292 | r_max = d + (radius)*scale; | 
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| 293 | } | 
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| 294 |  | 
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| 295 | DEFAULT_PROJECT_RANGE_CAST | 
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| 296 | }; | 
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| 297 |  | 
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| 298 | class GodotRectangleShape2D : public GodotShape2D { | 
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| 299 | Vector2 half_extents; | 
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| 300 |  | 
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| 301 | public: | 
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| 302 | _FORCE_INLINE_ const Vector2 &get_half_extents() const { return half_extents; } | 
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| 303 |  | 
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| 304 | virtual PhysicsServer2D::ShapeType get_type() const override { return PhysicsServer2D::SHAPE_RECTANGLE; } | 
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| 305 |  | 
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| 306 | virtual void project_rangev(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const override { project_range(p_normal, p_transform, r_min, r_max); } | 
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| 307 | virtual void get_supports(const Vector2 &p_normal, Vector2 *r_supports, int &r_amount) const override; | 
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| 308 |  | 
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| 309 | virtual bool contains_point(const Vector2 &p_point) const override; | 
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| 310 | virtual bool intersect_segment(const Vector2 &p_begin, const Vector2 &p_end, Vector2 &r_point, Vector2 &r_normal) const override; | 
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| 311 | virtual real_t get_moment_of_inertia(real_t p_mass, const Size2 &p_scale) const override; | 
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| 312 |  | 
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| 313 | virtual void set_data(const Variant &p_data) override; | 
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| 314 | virtual Variant get_data() const override; | 
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| 315 |  | 
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| 316 | _FORCE_INLINE_ void project_range(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const { | 
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| 317 | // no matter the angle, the box is mirrored anyway | 
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| 318 | r_max = -1e20; | 
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| 319 | r_min = 1e20; | 
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| 320 | for (int i = 0; i < 4; i++) { | 
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| 321 | real_t d = p_normal.dot(p_transform.xform(Vector2(((i & 1) * 2 - 1) * half_extents.x, ((i >> 1) * 2 - 1) * half_extents.y))); | 
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| 322 |  | 
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| 323 | if (d > r_max) { | 
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| 324 | r_max = d; | 
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| 325 | } | 
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| 326 | if (d < r_min) { | 
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| 327 | r_min = d; | 
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| 328 | } | 
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| 329 | } | 
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| 330 | } | 
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| 331 |  | 
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| 332 | _FORCE_INLINE_ Vector2 get_circle_axis(const Transform2D &p_xform, const Transform2D &p_xform_inv, const Vector2 &p_circle) const { | 
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| 333 | Vector2 local_v = p_xform_inv.xform(p_circle); | 
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| 334 |  | 
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| 335 | Vector2 he( | 
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| 336 | (local_v.x < 0) ? -half_extents.x : half_extents.x, | 
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| 337 | (local_v.y < 0) ? -half_extents.y : half_extents.y); | 
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| 338 |  | 
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| 339 | return (p_xform.xform(he) - p_circle).normalized(); | 
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| 340 | } | 
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| 341 |  | 
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| 342 | _FORCE_INLINE_ Vector2 get_box_axis(const Transform2D &p_xform, const Transform2D &p_xform_inv, const GodotRectangleShape2D *p_B, const Transform2D &p_B_xform, const Transform2D &p_B_xform_inv) const { | 
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| 343 | Vector2 a, b; | 
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| 344 |  | 
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| 345 | { | 
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| 346 | Vector2 local_v = p_xform_inv.xform(p_B_xform.get_origin()); | 
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| 347 |  | 
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| 348 | Vector2 he( | 
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| 349 | (local_v.x < 0) ? -half_extents.x : half_extents.x, | 
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| 350 | (local_v.y < 0) ? -half_extents.y : half_extents.y); | 
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| 351 |  | 
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| 352 | a = p_xform.xform(he); | 
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| 353 | } | 
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| 354 | { | 
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| 355 | Vector2 local_v = p_B_xform_inv.xform(p_xform.get_origin()); | 
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| 356 |  | 
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| 357 | Vector2 he( | 
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| 358 | (local_v.x < 0) ? -p_B->half_extents.x : p_B->half_extents.x, | 
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| 359 | (local_v.y < 0) ? -p_B->half_extents.y : p_B->half_extents.y); | 
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| 360 |  | 
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| 361 | b = p_B_xform.xform(he); | 
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| 362 | } | 
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| 363 |  | 
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| 364 | return (a - b).normalized(); | 
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| 365 | } | 
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| 366 |  | 
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| 367 | DEFAULT_PROJECT_RANGE_CAST | 
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| 368 | }; | 
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| 369 |  | 
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| 370 | class GodotCapsuleShape2D : public GodotShape2D { | 
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| 371 | real_t radius = 0.0; | 
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| 372 | real_t height = 0.0; | 
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| 373 |  | 
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| 374 | public: | 
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| 375 | _FORCE_INLINE_ const real_t &get_radius() const { return radius; } | 
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| 376 | _FORCE_INLINE_ const real_t &get_height() const { return height; } | 
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| 377 |  | 
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| 378 | virtual PhysicsServer2D::ShapeType get_type() const override { return PhysicsServer2D::SHAPE_CAPSULE; } | 
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| 379 |  | 
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| 380 | virtual void project_rangev(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const override { project_range(p_normal, p_transform, r_min, r_max); } | 
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| 381 | virtual void get_supports(const Vector2 &p_normal, Vector2 *r_supports, int &r_amount) const override; | 
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| 382 |  | 
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| 383 | virtual bool contains_point(const Vector2 &p_point) const override; | 
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| 384 | virtual bool intersect_segment(const Vector2 &p_begin, const Vector2 &p_end, Vector2 &r_point, Vector2 &r_normal) const override; | 
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| 385 | virtual real_t get_moment_of_inertia(real_t p_mass, const Size2 &p_scale) const override; | 
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| 386 |  | 
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| 387 | virtual void set_data(const Variant &p_data) override; | 
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| 388 | virtual Variant get_data() const override; | 
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| 389 |  | 
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| 390 | _FORCE_INLINE_ void project_range(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const { | 
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| 391 | // no matter the angle, the box is mirrored anyway | 
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| 392 | Vector2 n = p_transform.basis_xform_inv(p_normal).normalized(); | 
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| 393 | real_t h = height * 0.5 - radius; | 
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| 394 |  | 
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| 395 | n *= radius; | 
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| 396 | n.y += (n.y > 0) ? h : -h; | 
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| 397 |  | 
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| 398 | r_max = p_normal.dot(p_transform.xform(n)); | 
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| 399 | r_min = p_normal.dot(p_transform.xform(-n)); | 
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| 400 |  | 
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| 401 | if (r_max < r_min) { | 
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| 402 | SWAP(r_max, r_min); | 
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| 403 | } | 
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| 404 |  | 
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| 405 | //ERR_FAIL_COND( r_max < r_min ); | 
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| 406 | } | 
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| 407 |  | 
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| 408 | DEFAULT_PROJECT_RANGE_CAST | 
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| 409 | }; | 
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| 410 |  | 
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| 411 | class GodotConvexPolygonShape2D : public GodotShape2D { | 
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| 412 | struct Point { | 
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| 413 | Vector2 pos; | 
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| 414 | Vector2 normal; //normal to next segment | 
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| 415 | }; | 
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| 416 |  | 
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| 417 | Point *points = nullptr; | 
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| 418 | int point_count = 0; | 
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| 419 |  | 
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| 420 | public: | 
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| 421 | _FORCE_INLINE_ int get_point_count() const { return point_count; } | 
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| 422 | _FORCE_INLINE_ const Vector2 &get_point(int p_idx) const { return points[p_idx].pos; } | 
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| 423 | _FORCE_INLINE_ const Vector2 &get_segment_normal(int p_idx) const { return points[p_idx].normal; } | 
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| 424 | _FORCE_INLINE_ Vector2 get_xformed_segment_normal(const Transform2D &p_xform, int p_idx) const { | 
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| 425 | Vector2 a = points[p_idx].pos; | 
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| 426 | p_idx++; | 
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| 427 | Vector2 b = points[p_idx == point_count ? 0 : p_idx].pos; | 
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| 428 | return (p_xform.xform(b) - p_xform.xform(a)).normalized().orthogonal(); | 
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| 429 | } | 
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| 430 |  | 
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| 431 | virtual PhysicsServer2D::ShapeType get_type() const override { return PhysicsServer2D::SHAPE_CONVEX_POLYGON; } | 
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| 432 |  | 
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| 433 | virtual void project_rangev(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const override { project_range(p_normal, p_transform, r_min, r_max); } | 
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| 434 | virtual void get_supports(const Vector2 &p_normal, Vector2 *r_supports, int &r_amount) const override; | 
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| 435 |  | 
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| 436 | virtual bool contains_point(const Vector2 &p_point) const override; | 
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| 437 | virtual bool intersect_segment(const Vector2 &p_begin, const Vector2 &p_end, Vector2 &r_point, Vector2 &r_normal) const override; | 
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| 438 | virtual real_t get_moment_of_inertia(real_t p_mass, const Size2 &p_scale) const override; | 
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| 439 |  | 
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| 440 | virtual void set_data(const Variant &p_data) override; | 
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| 441 | virtual Variant get_data() const override; | 
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| 442 |  | 
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| 443 | _FORCE_INLINE_ void project_range(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const { | 
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| 444 | if (!points || point_count <= 0) { | 
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| 445 | r_min = r_max = 0; | 
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| 446 | return; | 
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| 447 | } | 
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| 448 |  | 
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| 449 | r_min = r_max = p_normal.dot(p_transform.xform(points[0].pos)); | 
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| 450 | for (int i = 1; i < point_count; i++) { | 
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| 451 | real_t d = p_normal.dot(p_transform.xform(points[i].pos)); | 
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| 452 | if (d > r_max) { | 
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| 453 | r_max = d; | 
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| 454 | } | 
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| 455 | if (d < r_min) { | 
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| 456 | r_min = d; | 
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| 457 | } | 
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| 458 | } | 
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| 459 | } | 
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| 460 |  | 
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| 461 | DEFAULT_PROJECT_RANGE_CAST | 
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| 462 |  | 
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| 463 | GodotConvexPolygonShape2D() {} | 
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| 464 | ~GodotConvexPolygonShape2D(); | 
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| 465 | }; | 
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| 466 |  | 
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| 467 | class GodotConcaveShape2D : public GodotShape2D { | 
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| 468 | public: | 
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| 469 | virtual bool is_concave() const override { return true; } | 
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| 470 |  | 
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| 471 | // Returns true to stop the query. | 
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| 472 | typedef bool (*QueryCallback)(void *p_userdata, GodotShape2D *p_convex); | 
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| 473 |  | 
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| 474 | virtual void cull(const Rect2 &p_local_aabb, QueryCallback p_callback, void *p_userdata) const = 0; | 
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| 475 | }; | 
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| 476 |  | 
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| 477 | class GodotConcavePolygonShape2D : public GodotConcaveShape2D { | 
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| 478 | struct Segment { | 
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| 479 | int points[2] = {}; | 
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| 480 | }; | 
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| 481 |  | 
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| 482 | Vector<Segment> segments; | 
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| 483 | Vector<Point2> points; | 
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| 484 |  | 
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| 485 | struct BVH { | 
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| 486 | Rect2 aabb; | 
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| 487 | int left = 0, right = 0; | 
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| 488 | }; | 
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| 489 |  | 
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| 490 | Vector<BVH> bvh; | 
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| 491 | int bvh_depth = 0; | 
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| 492 |  | 
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| 493 | struct BVH_CompareX { | 
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| 494 | _FORCE_INLINE_ bool operator()(const BVH &a, const BVH &b) const { | 
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| 495 | return (a.aabb.position.x + a.aabb.size.x * 0.5) < (b.aabb.position.x + b.aabb.size.x * 0.5); | 
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| 496 | } | 
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| 497 | }; | 
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| 498 |  | 
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| 499 | struct BVH_CompareY { | 
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| 500 | _FORCE_INLINE_ bool operator()(const BVH &a, const BVH &b) const { | 
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| 501 | return (a.aabb.position.y + a.aabb.size.y * 0.5) < (b.aabb.position.y + b.aabb.size.y * 0.5); | 
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| 502 | } | 
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| 503 | }; | 
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| 504 |  | 
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| 505 | int _generate_bvh(BVH *p_bvh, int p_len, int p_depth); | 
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| 506 |  | 
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| 507 | public: | 
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| 508 | virtual PhysicsServer2D::ShapeType get_type() const override { return PhysicsServer2D::SHAPE_CONCAVE_POLYGON; } | 
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| 509 |  | 
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| 510 | virtual void project_rangev(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const override { | 
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| 511 | r_min = 0; | 
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| 512 | r_max = 0; | 
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| 513 | ERR_FAIL_MSG( "Unsupported call to project_rangev in GodotConcavePolygonShape2D"); | 
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| 514 | } | 
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| 515 |  | 
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| 516 | void project_range(const Vector2 &p_normal, const Transform2D &p_transform, real_t &r_min, real_t &r_max) const { | 
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| 517 | r_min = 0; | 
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| 518 | r_max = 0; | 
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| 519 | ERR_FAIL_MSG( "Unsupported call to project_range in GodotConcavePolygonShape2D"); | 
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| 520 | } | 
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| 521 |  | 
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| 522 | virtual void get_supports(const Vector2 &p_normal, Vector2 *r_supports, int &r_amount) const override; | 
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| 523 |  | 
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| 524 | virtual bool contains_point(const Vector2 &p_point) const override; | 
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| 525 | virtual bool intersect_segment(const Vector2 &p_begin, const Vector2 &p_end, Vector2 &r_point, Vector2 &r_normal) const override; | 
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| 526 |  | 
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| 527 | virtual real_t get_moment_of_inertia(real_t p_mass, const Size2 &p_scale) const override { return 0; } | 
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| 528 |  | 
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| 529 | virtual void set_data(const Variant &p_data) override; | 
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| 530 | virtual Variant get_data() const override; | 
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| 531 |  | 
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| 532 | virtual void cull(const Rect2 &p_local_aabb, QueryCallback p_callback, void *p_userdata) const override; | 
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| 533 |  | 
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| 534 | DEFAULT_PROJECT_RANGE_CAST | 
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| 535 | }; | 
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| 536 |  | 
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| 537 | #undef DEFAULT_PROJECT_RANGE_CAST | 
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| 538 |  | 
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| 539 | #endif // GODOT_SHAPE_2D_H | 
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| 540 |  | 
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