112 lines
4.4 KiB
C++
112 lines
4.4 KiB
C++
#pragma once
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#include <extra2d/core/color.h>
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#include <extra2d/core/math_types.h>
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#include <extra2d/scene/node.h>
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#include <vector>
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namespace extra2d {
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// ============================================================================
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// 形状类型
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// ============================================================================
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enum class ShapeType { Point, Line, Rect, Circle, Triangle, Polygon };
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// ============================================================================
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// 形状节点 - 用于绘制几何形状
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// 注意：ShapeNode 继承自 Node，使用 SharedPtr 因为需要 enable_shared_from_this
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// ============================================================================
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class ShapeNode : public Node {
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public:
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ShapeNode();
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~ShapeNode() override = default;
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// ------------------------------------------------------------------------
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// 静态创建方法
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// ------------------------------------------------------------------------
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static SharedPtr<ShapeNode> create();
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// 点
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static SharedPtr<ShapeNode> createPoint(const Vec2 &pos, const Color &color);
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// 线
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static SharedPtr<ShapeNode> createLine(const Vec2 &start, const Vec2 &end,
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const Color &color,
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float width = 1.0f);
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// 矩形
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static SharedPtr<ShapeNode> createRect(const Rect &rect, const Color &color,
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float width = 1.0f);
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static SharedPtr<ShapeNode> createFilledRect(const Rect &rect,
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const Color &color);
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// 圆形
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static SharedPtr<ShapeNode> createCircle(const Vec2 ¢er, float radius,
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const Color &color,
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int segments = 32,
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float width = 1.0f);
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static SharedPtr<ShapeNode> createFilledCircle(const Vec2 ¢er,
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float radius,
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const Color &color,
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int segments = 32);
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// 三角形
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static SharedPtr<ShapeNode> createTriangle(const Vec2 &p1, const Vec2 &p2,
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const Vec2 &p3, const Color &color,
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float width = 1.0f);
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static SharedPtr<ShapeNode> createFilledTriangle(const Vec2 &p1,
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const Vec2 &p2,
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const Vec2 &p3,
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const Color &color);
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// 多边形
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static SharedPtr<ShapeNode> createPolygon(const std::vector<Vec2> &points,
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const Color &color,
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float width = 1.0f);
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static SharedPtr<ShapeNode>
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createFilledPolygon(const std::vector<Vec2> &points, const Color &color);
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// ------------------------------------------------------------------------
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// 属性设置
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// ------------------------------------------------------------------------
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void setShapeType(ShapeType type) { shapeType_ = type; }
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ShapeType getShapeType() const { return shapeType_; }
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void setColor(const Color &color) { color_ = color; }
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Color getColor() const { return color_; }
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void setFilled(bool filled) { filled_ = filled; }
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bool isFilled() const { return filled_; }
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void setLineWidth(float width) { lineWidth_ = width; }
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float getLineWidth() const { return lineWidth_; }
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void setSegments(int segments) { segments_ = segments; }
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int getSegments() const { return segments_; }
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// ------------------------------------------------------------------------
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// 点设置
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// ------------------------------------------------------------------------
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void setPoints(const std::vector<Vec2> &points);
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const std::vector<Vec2> &getPoints() const { return points_; }
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void addPoint(const Vec2 &point);
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void clearPoints();
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Rect getBounds() const override;
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protected:
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void onDraw(RenderBackend &renderer) override;
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void generateRenderCommand(std::vector<RenderCommand> &commands,
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int zOrder) override;
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private:
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ShapeType shapeType_ = ShapeType::Rect;
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Color color_ = Colors::White;
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bool filled_ = false;
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float lineWidth_ = 1.0f;
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int segments_ = 32;
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std::vector<Vec2> points_;
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};
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} // namespace extra2d
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