1 /*************************************************************************/
2 /*  path_2d.h                                                            */
3 /*************************************************************************/
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5 /*                           GODOT ENGINE                                */
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8 /* Copyright (c) 2007-2019 Juan Linietsky, Ariel Manzur.                 */
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29 /*************************************************************************/
30 #ifndef PATH_2D_H
31 #define PATH_2D_H
32 
33 #include "scene/2d/node_2d.h"
34 #include "scene/resources/curve.h"
35 
36 class Path2D : public Node2D {
37 
38 	OBJ_TYPE(Path2D, Node2D);
39 
40 	Ref<Curve2D> curve;
41 
42 	void _curve_changed();
43 
44 protected:
45 	void _notification(int p_what);
46 	static void _bind_methods();
47 
48 public:
49 	void set_curve(const Ref<Curve2D> &p_curve);
50 	Ref<Curve2D> get_curve() const;
51 
52 	Path2D();
53 };
54 
55 class PathFollow2D : public Node2D {
56 
57 	OBJ_TYPE(PathFollow2D, Node2D);
58 
59 public:
60 private:
61 	Path2D *path;
62 	real_t offset;
63 	real_t h_offset;
64 	real_t v_offset;
65 	real_t lookahead;
66 	bool cubic;
67 	bool loop;
68 	bool rotate;
69 
70 	void _update_transform();
71 
72 protected:
73 	bool _set(const StringName &p_name, const Variant &p_value);
74 	bool _get(const StringName &p_name, Variant &r_ret) const;
75 	void _get_property_list(List<PropertyInfo> *p_list) const;
76 
77 	void _notification(int p_what);
78 	static void _bind_methods();
79 
80 public:
81 	void set_offset(float p_offset);
82 	float get_offset() const;
83 
84 	void set_h_offset(float p_h_offset);
85 	float get_h_offset() const;
86 
87 	void set_v_offset(float p_v_offset);
88 	float get_v_offset() const;
89 
90 	void set_unit_offset(float p_unit_offset);
91 	float get_unit_offset() const;
92 
93 	void set_lookahead(float p_lookahead);
94 	float get_lookahead() const;
95 
96 	void set_loop(bool p_loop);
97 	bool has_loop() const;
98 
99 	void set_rotate(bool p_enabled);
100 	bool is_rotating() const;
101 
102 	void set_cubic_interpolation(bool p_enable);
103 	bool get_cubic_interpolation() const;
104 
105 	String get_configuration_warning() const;
106 
107 	PathFollow2D();
108 };
109 
110 #endif // PATH_2D_H
111