shapes

package

v0.0.0-...-cddb420 Latest Latest Go to latest Published: May 29, 2022 License: Apache-2.0 Imports: 10 Imported by: 0

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Valid go.mod file
Redistributable license
Tagged version
Stable version
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Repository

github.com/schleising/GoOpenGL

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Open Source Insights

Documentation ¶

Index ¶

Constants
func LoadImage(filename string, imageChan chan ImageMessage)
type Colour
type ImageMessage
type Point
type Rectangle
- func NewRectangle(x, y float32, width, height int) *Rectangle
type TexCoord
type Texture
- func CreateTextureFromImageRgba(rgba *image.RGBA) *Texture
- func NewTexture(filename string, imageChan chan ImageMessage) (*Texture, error)
- func (t *Texture) SetTexCoords(containerWidth, containerHeight int)
type Vertex

Constants ¶

View Source

const (
	PointLen    = 3
	ColourLen   = 4
	TexCoordLen = 2

	PointSize    = PointLen * float32Size
	ColourSize   = ColourLen * float32Size
	TexCoordSize = TexCoordLen * float32Size

	VertexSize = PointSize + ColourSize + TexCoordSize
)

View Source

const (
	NumVertices = 4
)

Variables ¶

This section is empty.

Functions ¶

func LoadImage ¶

func LoadImage(filename string, imageChan chan ImageMessage)

Types ¶

type Colour ¶

type Colour struct {
	R float32
	G float32
	B float32
	A float32
}

type ImageMessage ¶

type ImageMessage struct {
	Filename string
	Rgba     *image.RGBA
}

type Point ¶

type Point struct {
	X float32
	Y float32
	Z float32
}

type Rectangle ¶

type Rectangle struct {
	Handle uint32
	// contains filtered or unexported fields
}

func NewRectangle ¶

func NewRectangle(x, y float32, width, height int) *Rectangle

func (*Rectangle) ClickInRect ¶

func (r *Rectangle) ClickInRect(x, y float32) bool

func (*Rectangle) Draw ¶

func (r *Rectangle) Draw(program uint32)

func (*Rectangle) MakeVao ¶

func (r *Rectangle) MakeVao() uint32

func (*Rectangle) Pos ¶

func (r *Rectangle) Pos() (float32, float32)

func (*Rectangle) RequestTexture ¶

func (r *Rectangle) RequestTexture(filename string, imageChan chan ImageMessage)

func (*Rectangle) Scale ¶

func (r *Rectangle) Scale(scale float32)

func (*Rectangle) SetDefaultTexture ¶

func (r *Rectangle) SetDefaultTexture()

func (*Rectangle) SetTexCoords ¶

func (r *Rectangle) SetTexCoords(texture *Texture)

func (*Rectangle) Size ¶

func (r *Rectangle) Size() (int, int)

func (*Rectangle) UpdateXPos ¶

func (r *Rectangle) UpdateXPos(dx float32)

func (*Rectangle) UpdateYPos ¶

func (r *Rectangle) UpdateYPos(dy float32)

type TexCoord ¶

type TexCoord struct {
	S float32
	T float32
}

type Texture ¶

type Texture struct {
	Handle    uint32
	Width     int
	Height    int
	TexCoords []TexCoord
}

var (
	DefaultTexture *Texture
)

func CreateTextureFromImageRgba ¶

func CreateTextureFromImageRgba(rgba *image.RGBA) *Texture

func NewTexture ¶

func NewTexture(filename string, imageChan chan ImageMessage) (*Texture, error)

func (*Texture) SetTexCoords ¶

func (t *Texture) SetTexCoords(containerWidth, containerHeight int)

type Vertex ¶

type Vertex struct {
	Point    Point
	Colour   Colour
	TexCoord TexCoord
}

Source Files ¶

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