92 lines
1.8 KiB
Go
92 lines
1.8 KiB
Go
// Package cursor handles custom mouse cursor sprite images.
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package cursor
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import (
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"git.kirsle.net/SketchyMaze/doodle/pkg/balance"
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"git.kirsle.net/SketchyMaze/doodle/pkg/log"
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"git.kirsle.net/SketchyMaze/doodle/pkg/native"
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"git.kirsle.net/SketchyMaze/doodle/pkg/shmem"
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"git.kirsle.net/SketchyMaze/doodle/pkg/sprites"
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"git.kirsle.net/go/render"
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"git.kirsle.net/go/ui"
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)
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type Cursor struct {
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Filename string
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Sprite *ui.Image
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Offset render.Point
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}
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// Current selected cursor to draw on screen.
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var Current *Cursor
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// NoCursor hides the cursor entirely.
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var NoCursor = &Cursor{}
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// Draw the cursor on screen. NOTE: Does not draw on touchscreen devices.
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func Draw(e render.Engine) {
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if native.IsTouchScreenMode {
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return
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}
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if Current == nil {
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Current = NewPointer(e)
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}
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if Current.Sprite != nil {
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Current.Sprite.Present(e, shmem.Cursor)
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}
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}
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// NewPointer initializes the default pointer cursor.
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func NewPointer(e render.Engine) *Cursor {
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if pointer != nil {
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return pointer
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}
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img, err := sprites.LoadImage(e, balance.CursorIcon)
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if err != nil {
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log.Error("NewPointer: %s", err)
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}
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return &Cursor{
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Filename: balance.CursorIcon,
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Sprite: img,
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}
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}
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// NewPencil initializes the pencil cursor.
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func NewPencil(e render.Engine) *Cursor {
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if pencil != nil {
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return pencil
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}
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img, err := sprites.LoadImage(e, balance.PencilIcon)
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if err != nil {
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log.Error("NewPencil: %s", err)
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}
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return &Cursor{
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Filename: balance.PencilIcon,
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Sprite: img,
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}
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}
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// NewFlood initializes the Flood cursor.
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func NewFlood(e render.Engine) *Cursor {
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if pencil != nil {
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return pencil
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}
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img, err := sprites.LoadImage(e, balance.FloodCursor)
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if err != nil {
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log.Error("NewFlood: %s", err)
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}
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return &Cursor{
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Filename: balance.FloodCursor,
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Sprite: img,
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}
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}
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// Cached singletons of the cursors.
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var (
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pointer *Cursor
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pencil *Cursor
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flood *Cursor
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)
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