shape

Documentation

Index

• func DrawParallaxBuffers(numObjects int, camPos mgl32.Vec3, ...)
• func GetParallaxBuffers(arr []ParallaxRect) (parallaxPositionBuffer, parallaxTranslationBuffer, ... gl.Buffer)
• type OrbitingRect
  • func NewOrbitingRect(rect entity.Entity, c *color.NRGBA, orbitCenter mgl32.Vec2, ...) *OrbitingRect
  • func (r *OrbitingRect) DrawOrbit()
  • func (r *OrbitingRect) Update()
• type ParallaxRect
  • func GenParallaxRects(target camera.CameraI, count int, ...) []ParallaxRect
• type Shape

Functions

func DrawParallaxBuffers

func DrawParallaxBuffers(numObjects int, camPos mgl32.Vec3, parallaxPositionBuffer, parallaxTranslationBuffer, parallaxTranslationRatioBuffer, parallaxAngleBuffer, parallaxScaleBuffer, parallaxColorBuffer gl.Buffer)

func GetParallaxBuffers

func GetParallaxBuffers(arr []ParallaxRect) (parallaxPositionBuffer, parallaxTranslationBuffer, parallaxTranslationRatioBuffer, parallaxAngleBuffer, parallaxScaleBuffer, parallaxColorBuffer gl.Buffer)

Types

type OrbitingRect

type OrbitingRect struct {
	model.Model
	// contains filtered or unexported fields
}

func NewOrbitingRect

func NewOrbitingRect(rect entity.Entity, c *color.NRGBA, orbitCenter mgl32.Vec2, orbitRadius float32, orbitTarget entity.Target, revolutionSpeed, rotateSpeed int64) *OrbitingRect

func (*OrbitingRect) DrawOrbit

func (r *OrbitingRect) DrawOrbit()

func (*OrbitingRect) Update

func (r *OrbitingRect) Update()

type ParallaxRect

type ParallaxRect struct {
	model.Model
	Target camera.CameraI
	// Essentially, how this object moves in comparison to the camera.
	// 1 is the same speed. 0.2 is 20% of camera speed.
	// The larger the number, the further away the object appears to be. For example, a ratio of 0.95 means the object
	// barely move when the camera moves - just like something that's very far away.
	// Negative numbers will make it move in the opposite direction, which isn't recommended.
	TranslationRatio float32
}

func GenParallaxRects

func GenParallaxRects(target camera.CameraI, count int, minWidth, maxWidth, minSpeedRatio, maxSpeedRatio float32) []ParallaxRect

type Shape

type Shape interface {
	// Draw draws an outline of a Shape using line segments.
	DrawWireframe()
	// DrawFilled draws a filled in Shape using triangles.
	DrawFilled()
	// SetCenter sets the Shape to the specified position.
	SetCenter(x, y float32)
	// ModifyCenter moves the Shape by the specified amount.
	ModifyCenter(x, y float32)
	// Center is a point about which all actions, like rotation, are defined.
	// TODO: Consider the ability to modify the center point for rotating.
	Position() mgl32.Vec3
}