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authorchai <chaifix@163.com>2021-12-13 00:07:19 +0800
committerchai <chaifix@163.com>2021-12-13 00:07:19 +0800
commit60cbbdec07ab7a5636eac5b3c024ae44e937f4d4 (patch)
treeb2c7b0a868f18159dbc43d8954e1bd7668549a88 /Client/ThirdParty/Box2D/include/box2d/b2_draw.h
+init
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+// MIT License
+
+// Copyright (c) 2019 Erin Catto
+
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+#ifndef B2_DRAW_H
+#define B2_DRAW_H
+
+#include "b2_api.h"
+#include "b2_math.h"
+
+/// Color for debug drawing. Each value has the range [0,1].
+struct B2_API b2Color
+{
+ b2Color() {}
+ b2Color(float rIn, float gIn, float bIn, float aIn = 1.0f)
+ {
+ r = rIn; g = gIn; b = bIn; a = aIn;
+ }
+
+ void Set(float rIn, float gIn, float bIn, float aIn = 1.0f)
+ {
+ r = rIn; g = gIn; b = bIn; a = aIn;
+ }
+
+ float r, g, b, a;
+};
+
+/// Implement and register this class with a b2World to provide debug drawing of physics
+/// entities in your game.
+class B2_API b2Draw
+{
+public:
+ b2Draw();
+
+ virtual ~b2Draw() {}
+
+ enum
+ {
+ e_shapeBit = 0x0001, ///< draw shapes
+ e_jointBit = 0x0002, ///< draw joint connections
+ e_aabbBit = 0x0004, ///< draw axis aligned bounding boxes
+ e_pairBit = 0x0008, ///< draw broad-phase pairs
+ e_centerOfMassBit = 0x0010 ///< draw center of mass frame
+ };
+
+ /// Set the drawing flags.
+ void SetFlags(uint32 flags);
+
+ /// Get the drawing flags.
+ uint32 GetFlags() const;
+
+ /// Append flags to the current flags.
+ void AppendFlags(uint32 flags);
+
+ /// Clear flags from the current flags.
+ void ClearFlags(uint32 flags);
+
+ /// Draw a closed polygon provided in CCW order.
+ virtual void DrawPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color) = 0;
+
+ /// Draw a solid closed polygon provided in CCW order.
+ virtual void DrawSolidPolygon(const b2Vec2* vertices, int32 vertexCount, const b2Color& color) = 0;
+
+ /// Draw a circle.
+ virtual void DrawCircle(const b2Vec2& center, float radius, const b2Color& color) = 0;
+
+ /// Draw a solid circle.
+ virtual void DrawSolidCircle(const b2Vec2& center, float radius, const b2Vec2& axis, const b2Color& color) = 0;
+
+ /// Draw a line segment.
+ virtual void DrawSegment(const b2Vec2& p1, const b2Vec2& p2, const b2Color& color) = 0;
+
+ /// Draw a transform. Choose your own length scale.
+ /// @param xf a transform.
+ virtual void DrawTransform(const b2Transform& xf) = 0;
+
+ /// Draw a point.
+ virtual void DrawPoint(const b2Vec2& p, float size, const b2Color& color) = 0;
+
+protected:
+ uint32 m_drawFlags;
+};
+
+#endif