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Gamedev Framework (gf)
0.3.0
A C++11 framework for 2D games
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Gamedev Framework (gf)
0.3.0
A C++11 framework for 2D games
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Specialized shape representing a convex polygon. More...
#include <gf/Shapes.h>
Public Member Functions | |
| ConvexShape (std::size_t pointCount) | |
| Default constructor. More... | |
| ConvexShape (const Polygon &polygon) | |
| Constructor with a polygon. More... | |
| void | setPointCount (std::size_t pointCount) |
| Set the number of points of the polygon. More... | |
| void | setPoint (std::size_t index, Vector2f point) |
| Get the number of points of the polygon. More... | |
| virtual std::size_t | getPointCount () const override |
| Get the total number of points of the shape. More... | |
| virtual Vector2f | getPoint (std::size_t index) const override |
| Get a point of the shape. More... | |
 Public Member Functions inherited from gf::Shape | |
| Shape () | |
| Default constructor. More... | |
| void | setTexture (const Texture &texture, bool resetRect=false) |
| Change the source texture of the shape. More... | |
| const Texture * | getTexture () const |
| Get the source texture of the shape. More... | |
| void | unsetTexture () |
| Unset the source texture of the shape. More... | |
| void | setTextureRect (const RectF &rect) |
| Set the sub-rectangle of the texture that the shape will display. More... | |
| const RectF & | getTextureRect () const |
| Get the sub-rectangle of the texture displayed by the shape. More... | |
| void | setColor (const Color4f &color) |
| Set the fill color of the shape. More... | |
| const Color4f & | getColor () const |
| Get the fill color of the shape. More... | |
| void | setOutlineColor (const Color4f &color) |
| Set the outline color of the shape. More... | |
| const Color4f & | getOutlineColor () const |
| Get the outline color of the shape. More... | |
| void | setOutlineThickness (float thickness) |
| Set the thickness of the shape's outline. More... | |
| float | getOutlineThickness () const |
| Get the outline thickness of the shape. More... | |
| RectF | getLocalBounds () const |
| Get the local bounding rectangle of the entity. More... | |
| void | setAnchor (Anchor anchor) |
| Set the anchor origin of the entity. More... | |
| VertexBuffer | commitGeometry () const |
| Create a buffer with the current geometry. More... | |
| VertexBuffer | commitOutlineGeometry () const |
| Create a buffer with the current outline geometry. More... | |
| virtual void | draw (RenderTarget &target, RenderStates states) override |
| Draw the object to a render target. More... | |
| Public Member Functions inherited from gf::Transformable | |
| Transformable () | |
| Default constructor. More... | |
| void | setOrigin (Vector2f origin) |
| Set the local origin of the object. More... | |
| Vector2f | getOrigin () const |
| Get the local origin of the object. More... | |
| void | setPosition (Vector2f position) |
| Set the position of the object. More... | |
| Vector2f | getPosition () const |
| Get the position of the object. More... | |
| void | move (Vector2f offset) |
| Move the object by a given offset. More... | |
| void | setRotation (float angle) |
| Set the orientation of the object. More... | |
| float | getRotation () const |
| Get the orientation of the object. More... | |
| void | rotate (float angle) |
| Rotate the object. More... | |
| void | setScale (Vector2f factors) |
| Set the scale factors of the object. More... | |
| void | setScale (float factor) |
| Set the scale factor of the object. More... | |
| Vector2f | getScale () const |
| Get the current scale of the object. More... | |
| void | scale (Vector2f factors) |
| Scale the object. More... | |
| void | scale (float factor) |
| Scale the object. More... | |
| Matrix3f | getTransform () const |
| Get the combined transform of the object. More... | |
| Matrix3f | getInverseTransform () const |
| Get the inverse of the combined transform of the object. More... | |
| Public Member Functions inherited from gf::Drawable | |
| virtual | ~Drawable () |
| Virtual desctructor. More... | |
Additional Inherited Members | |
| Protected Member Functions inherited from gf::Shape | |
| void | updateGeometry () |
| Recompute the internal geometry of the shape. More... | |
| Protected Member Functions inherited from gf::Transformable | |
| void | setOriginFromAnchorAndBounds (Anchor anchor, const RectF &bounds) |
| Set the origin from an anchor and bounds. More... | |
Specialized shape representing a convex polygon.
This class inherits all the functions of gf::Transformable (position, rotation, scale, bounds, ...) as well as the functions of gf::Shape (outline, color, texture, ...).
It is important to keep in mind that a convex shape must always be... convex, otherwise it may not be drawn correctly. Moreover, the points must be defined in order; using a random order would result in an incorrect shape.
Usage example:
| gf::ConvexShape::ConvexShape | ( | std::size_t | pointCount | ) |
Default constructor.
| pointCount | Number of points of the polygon |
| gf::ConvexShape::ConvexShape | ( | const Polygon & | polygon | ) |
Constructor with a polygon.
| polygon | The polygon |
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overridevirtual |
Get a point of the shape.
The returned point is in local coordinates, that is, the shape's transforms (position, rotation, scale) are not taken into account.
The result is undefined if index is out of the valid range.
| index | Index of the point to get, in range \( [0, n-1] \) where \( n \) is the number of points of the shape. |
Implements gf::Shape.
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overridevirtual |
Get the total number of points of the shape.
Implements gf::Shape.
| void gf::ConvexShape::setPoint | ( | std::size_t | index, |
| Vector2f | point | ||
| ) |
Get the number of points of the polygon.
| void gf::ConvexShape::setPointCount | ( | std::size_t | pointCount | ) |
Set the number of points of the polygon.
pointCount must be greater than 2 to define a valid shape.
| pointCount | New number of points of the polygon |
1.8.8