1 files changed, 94 insertions, 0 deletions
diff --git a/scene/animation/animation_blend_space2d.h b/scene/animation/animation_blend_space2d.h
new file mode 100644
index 0000000000..582140c97d
--- /dev/null
+++ b/scene/animation/animation_blend_space2d.h
@@ -0,0 +1,94 @@
+#ifndef ANIMATION_BLEND_SPACE2D_H
+#define ANIMATION_BLEND_SPACE2D_H
+
+#include "scene/animation/animation_graph_player.h"
+
+class AnimationNodeBlendSpace2D : public AnimationRootNode {
+    GDCLASS(AnimationNodeBlendSpace2D, AnimationRootNode)
+
+	enum {
+		MAX_BLEND_POINTS = 64
+	};
+
+	struct BlendPoint {
+		Ref<AnimationRootNode> node;
+		Vector2 position;
+	};
+
+	BlendPoint blend_points[MAX_BLEND_POINTS];
+	int blend_points_used;
+
+	struct BlendTriangle {
+		int points[3];
+	};
+
+	Vector<BlendTriangle> triangles;
+
+	Vector2 blend_pos;
+	Vector2 max_space;
+	Vector2 min_space;
+	Vector2 snap;
+	String x_label;
+	String y_label;
+
+	void _add_blend_point(int p_index, const Ref<AnimationRootNode> &p_node);
+	void _set_triangles(const Vector<int> &p_triangles);
+	Vector<int> _get_triangles() const;
+
+	void _blend_triangle(const Vector2 &p_pos, const Vector2 *p_points, float *r_weights);
+
+	bool auto_triangles;
+	bool trianges_dirty;
+
+	void _update_triangles();
+
+protected:
+	virtual void _validate_property(PropertyInfo &property) const;
+	static void _bind_methods();
+
+public:
+	void add_blend_point(const Ref<AnimationRootNode> &p_node, const Vector2 &p_position, int p_at_index = -1);
+	void set_blend_point_position(int p_point, const Vector2 &p_position);
+	void set_blend_point_node(int p_point, const Ref<AnimationRootNode> &p_node);
+	Vector2 get_blend_point_position(int p_point) const;
+	Ref<AnimationRootNode> get_blend_point_node(int p_point) const;
+	void remove_blend_point(int p_point);
+	int get_blend_point_count() const;
+
+	bool has_triangle(int p_x, int p_y, int p_z) const;
+	void add_triangle(int p_x, int p_y, int p_z, int p_at_index = -1);
+	int get_triangle_point(int p_triangle, int p_point);
+	void remove_triangle(int p_triangle);
+	int get_triangle_count() const;
+
+	void set_min_space(const Vector2 &p_min);
+	Vector2 get_min_space() const;
+
+	void set_max_space(const Vector2 &p_max);
+	Vector2 get_max_space() const;
+
+	void set_snap(const Vector2 &p_snap);
+	Vector2 get_snap() const;
+
+	void set_blend_position(const Vector2 &p_pos);
+	Vector2 get_blend_position() const;
+
+	void set_x_label(const String &p_label);
+	String get_x_label() const;
+
+	void set_y_label(const String &p_label);
+	String get_y_label() const;
+
+	virtual float process(float p_time, bool p_seek);
+	virtual String get_caption() const;
+
+	Vector2 get_closest_point(const Vector2 &p_point);
+
+	void set_auto_triangles(bool p_enable);
+	bool get_auto_triangles() const;
+
+    AnimationNodeBlendSpace2D();
+    ~AnimationNodeBlendSpace2D();
+};
+
+#endif // ANIMATION_BLEND_SPACE_H