90 lines
1.9 KiB
Go
90 lines
1.9 KiB
Go
package game
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import (
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"fmt"
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"image"
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"math/rand"
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"drjosh.dev/gurgle/engine"
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"drjosh.dev/gurgle/geom"
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)
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var _ interface {
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engine.Scanner
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engine.Prepper
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engine.Updater
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} = &Bubble{}
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type Bubble struct {
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Life int
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Sprite engine.Sprite
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game *engine.Game
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}
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func NewBubble(pos geom.Int3) *Bubble {
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return &Bubble{
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Life: 60,
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Sprite: engine.Sprite{
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Actor: engine.Actor{
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Pos: pos,
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Bounds: geom.Box{
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Min: geom.Pt3(-4, -4, -4),
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Max: geom.Pt3(4, 4, 4),
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},
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},
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DrawOffset: image.Pt(-4, -4),
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Sheet: engine.Sheet{
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AnimDefs: map[string]*engine.AnimDef{
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"bubble": {
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Steps: []engine.AnimStep{
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{Cell: 0, Duration: 5},
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{Cell: 1, Duration: 15},
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{Cell: 2, Duration: 20},
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{Cell: 3, Duration: 15},
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{Cell: 4, Duration: 3},
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{Cell: 5, Duration: 2},
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},
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OneShot: true,
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},
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},
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CellSize: image.Pt(8, 8),
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Src: engine.ImageRef{Path: "assets/bubble.png"},
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},
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},
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}
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}
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func (b *Bubble) Scan(visit func(interface{}) error) error {
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return visit(&b.Sprite)
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}
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func (b *Bubble) String() string {
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return fmt.Sprintf("Bubble@%v", b.Sprite.Actor.Pos)
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}
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func (b *Bubble) Prepare(g *engine.Game) error {
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b.game = g
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return nil
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}
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func (b *Bubble) Update() error {
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b.Life--
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if b.Life <= 0 {
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b.game.PathUnregister(b)
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}
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if true {
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// not using MoveX/MoveY/... because collisions are unnecessary -
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// this is an effect particle; if it overlaps a solid, who cares
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b.Sprite.Actor.Pos = b.Sprite.Actor.Pos.Add(geom.Pt3(
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//lint:ignore SA4000 one random minus another is not always zero...
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rand.Intn(3)-1, -1, rand.Intn(2)-rand.Intn(2),
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))
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} else {
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b.Sprite.Actor.MoveX(float64(rand.Intn(3)-1), nil)
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b.Sprite.Actor.MoveY(-1, nil)
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//lint:ignore SA4000 one random minus another is not always zero...
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b.Sprite.Actor.MoveZ(float64(rand.Intn(2)-rand.Intn(2)), nil)
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}
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return nil
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}
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