core

Documentation

Index

• func LoadPNG(path string) (img image.Image, err error)
• func WritePNG(path string, img image.Image) (err error)
• type ArrayBuffer
  • func NewArrayBuffer() (b *ArrayBuffer)
• type Buffer
• type Camera
  • func NewCamera(worldCenter, worldSize mgl32.Vec3, screenSize mgl32.Vec2) (c *Camera, err error)
  • func (c *Camera) ScreenToWorldCoords(screenCoords mgl32.Vec2) mgl32.Vec2
  • func (c *Camera) SetScreenSize(screenSize mgl32.Vec2)
  • func (c *Camera) SetWorldBounds(worldCenter, worldSize mgl32.Vec3) (err error)
  • func (c *Camera) WorldToScreenCoords(pt mgl32.Vec2) mgl32.Vec2
• type Context
  • func NewContext() (context *Context, err error)
  • func (c *Context) Camera(worldCenter, worldSize mgl32.Vec3) (*Camera, error)
  • func (c *Context) Clear()
  • func (c *Context) CreateWindow(w, h int, name string) (err error)
  • func (c *Context) Delete()
  • func (c *Context) SetCursor(val bool)
  • func (c *Context) SetFullscreen(val bool) error
  • func (c *Context) SetResizable(val bool)
  • func (c *Context) SetSwapInterval(val int)
  • func (c *Context) ShouldClose() bool
  • func (c *Context) SwapBuffers()
• type Events
  • func (e Events) Poll()
• type GLBuffer
  • func NewGLBuffer(target uint32) (b *GLBuffer)
  • func (b *GLBuffer) Bind()
  • func (b *GLBuffer) BufferID() uint32
  • func (b *GLBuffer) Delete()
  • func (b *GLBuffer) Size() int
  • func (b *GLBuffer) Upload(data interface{}, size int)
• type Program
  • func NewProgram() *Program
  • func (p *Program) Attrib(name string, stride uintptr) *VertexAttribute
  • func (p *Program) Bind()
  • func (p *Program) Delete()
  • func (p *Program) ID() uint32
  • func (p *Program) Load(vertex, fragment string) (err error)
  • func (p *Program) Unbind()
  • func (p *Program) Uniform(name string) *Uniform
  • func (p *Program) UniformBlock(name string, binding uint32) *UniformBlock
• type Texture
  • func GetTexture(img image.Image, smoothing TextureSmoothing) (texture *Texture, err error)
  • func LoadTexture(path string, smoothing TextureSmoothing) (texture *Texture, err error)
  • func (t *Texture) Bind()
  • func (t *Texture) Delete()
  • func (t *Texture) Unbind()
• type TextureSmoothing
• type Uniform
  • func (u *Uniform) Mat4(m mgl32.Mat4)
• type UniformBlock
  • func (b *UniformBlock) Bind(bufferID uint32, size int)
• type UniformBuffer
  • func NewUniformBuffer() (b *UniformBuffer)
• type VertexAttribute
  • func (a *VertexAttribute) Float(offset uintptr, divisor uint32)
  • func (a *VertexAttribute) Mat4(offset uintptr, divisor uint32)
  • func (a *VertexAttribute) Vec2(offset uintptr, divisor uint32)
  • func (a *VertexAttribute) Vec3(offset uintptr, divisor uint32)
  • func (a *VertexAttribute) Vec4(offset uintptr, divisor uint32)

Functions

func LoadPNG

func LoadPNG(path string) (img image.Image, err error)

func WritePNG

func WritePNG(path string, img image.Image) (err error)

Types

type ArrayBuffer

type ArrayBuffer struct {
	*GLBuffer
}

func NewArrayBuffer

func NewArrayBuffer() (b *ArrayBuffer)

type Buffer

type Buffer interface {
}

type Camera

type Camera struct {
	WorldCenter mgl32.Vec3
	WorldSize   mgl32.Vec3
	ScreenSize  mgl32.Vec2
	PxPerUnit   mgl32.Vec2
	Projection  mgl32.Mat4
	View        mgl32.Mat4
	Inverse     mgl32.Mat4
}

func NewCamera

func NewCamera(worldCenter, worldSize mgl32.Vec3, screenSize mgl32.Vec2) (c *Camera, err error)

func (*Camera) ScreenToWorldCoords

func (c *Camera) ScreenToWorldCoords(screenCoords mgl32.Vec2) mgl32.Vec2

func (*Camera) SetScreenSize

func (c *Camera) SetScreenSize(screenSize mgl32.Vec2)

func (*Camera) SetWorldBounds

func (c *Camera) SetWorldBounds(worldCenter, worldSize mgl32.Vec3) (err error)

func (*Camera) WorldToScreenCoords

func (c *Camera) WorldToScreenCoords(pt mgl32.Vec2) mgl32.Vec2

type Context

type Context struct {
	OpenGLVersion string
	ShaderVersion string

	Events *Events
	// contains filtered or unexported fields
}

func NewContext

func NewContext() (context *Context, err error)

func (*Context) Camera

func (c *Context) Camera(worldCenter, worldSize mgl32.Vec3) (*Camera, error)

func (*Context) Clear

func (c *Context) Clear()

func (*Context) CreateWindow

func (c *Context) CreateWindow(w, h int, name string) (err error)

func (*Context) Delete

func (c *Context) Delete()

func (*Context) SetCursor

func (c *Context) SetCursor(val bool)

func (*Context) SetFullscreen

func (c *Context) SetFullscreen(val bool) error

func (*Context) SetResizable

func (c *Context) SetResizable(val bool)

func (*Context) SetSwapInterval

func (c *Context) SetSwapInterval(val int)

func (*Context) ShouldClose

func (c *Context) ShouldClose() bool

func (*Context) SwapBuffers

func (c *Context) SwapBuffers()

type Events

type Events struct {
	// contains filtered or unexported fields
}

func (Events) Poll

func (e Events) Poll()

type GLBuffer

type GLBuffer struct {
	// contains filtered or unexported fields
}

func NewGLBuffer

func NewGLBuffer(target uint32) (b *GLBuffer)

func (*GLBuffer) Bind

func (b *GLBuffer) Bind()

func (*GLBuffer) BufferID

func (b *GLBuffer) BufferID() uint32

func (*GLBuffer) Delete

func (b *GLBuffer) Delete()

func (*GLBuffer) Size

func (b *GLBuffer) Size() int

func (*GLBuffer) Upload

func (b *GLBuffer) Upload(data interface{}, size int)

type Program

type Program struct {
	// contains filtered or unexported fields
}

func NewProgram

func NewProgram() *Program

func (*Program) Attrib

func (p *Program) Attrib(name string, stride uintptr) *VertexAttribute

func (*Program) Bind

func (p *Program) Bind()

func (*Program) Delete

func (p *Program) Delete()

func (*Program) ID

func (p *Program) ID() uint32

func (*Program) Load

func (p *Program) Load(vertex, fragment string) (err error)

func (*Program) Unbind

func (p *Program) Unbind()

func (*Program) Uniform

func (p *Program) Uniform(name string) *Uniform

func (*Program) UniformBlock

func (p *Program) UniformBlock(name string, binding uint32) *UniformBlock

type Texture

type Texture struct {
	Size         mgl32.Vec2
	OriginalSize mgl32.Vec2
	// contains filtered or unexported fields
}

func GetTexture

func GetTexture(img image.Image, smoothing TextureSmoothing) (texture *Texture, err error)

func LoadTexture

func LoadTexture(path string, smoothing TextureSmoothing) (texture *Texture, err error)

func (*Texture) Bind

func (t *Texture) Bind()

func (*Texture) Delete

func (t *Texture) Delete()

func (*Texture) Unbind

func (t *Texture) Unbind()

type TextureSmoothing

type TextureSmoothing int

const (
	SmoothingNearest TextureSmoothing = gl.NEAREST
	SmoothingLinear  TextureSmoothing = gl.LINEAR
)

type Uniform

type Uniform struct {
	// contains filtered or unexported fields
}

func (*Uniform) Mat4

func (u *Uniform) Mat4(m mgl32.Mat4)

type UniformBlock

type UniformBlock struct {
	// contains filtered or unexported fields
}

func (*UniformBlock) Bind

func (b *UniformBlock) Bind(bufferID uint32, size int)

type UniformBuffer

type UniformBuffer struct {
	*GLBuffer
}

func NewUniformBuffer

func NewUniformBuffer() (b *UniformBuffer)

type VertexAttribute

type VertexAttribute struct {
	// contains filtered or unexported fields
}

func (*VertexAttribute) Float

func (a *VertexAttribute) Float(offset uintptr, divisor uint32)

func (*VertexAttribute) Mat4

func (a *VertexAttribute) Mat4(offset uintptr, divisor uint32)

func (*VertexAttribute) Vec2

func (a *VertexAttribute) Vec2(offset uintptr, divisor uint32)

func (*VertexAttribute) Vec3

func (a *VertexAttribute) Vec3(offset uintptr, divisor uint32)

func (*VertexAttribute) Vec4

func (a *VertexAttribute) Vec4(offset uintptr, divisor uint32)