58 lines
1.6 KiB
Go
58 lines
1.6 KiB
Go
package d2mapentity
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import (
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"math"
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"github.com/OpenDiablo2/OpenDiablo2/d2common/d2math/d2vector"
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"github.com/OpenDiablo2/OpenDiablo2/d2core/d2records"
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)
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// CastOverlay is an animated entity representing a projectile that is a result of a skill cast.
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type CastOverlay struct {
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*AnimatedEntity
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record *d2records.OverlayRecord
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playLoop bool
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onDoneFunc func()
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}
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// ID returns the overlay uuid
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func (co *CastOverlay) ID() string {
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return co.AnimatedEntity.uuid
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}
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// GetPosition returns the position of the overlay
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func (co *CastOverlay) GetPosition() d2vector.Position {
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return co.AnimatedEntity.Position
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}
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// GetVelocity returns the velocity vector of the overlay
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func (co *CastOverlay) GetVelocity() d2vector.Vector {
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return co.AnimatedEntity.velocity
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}
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// SetRadians adjusts the entity target based on it's range, rotating it's
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// current destination by the value of angle in radians.
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func (co *CastOverlay) SetRadians(angle float64, done func()) {
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rads := float64(co.record.Height2)
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x := co.Position.X() + (rads * math.Cos(angle))
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y := co.Position.Y() + (rads * math.Sin(angle))
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co.setTarget(d2vector.NewPosition(x, y), done)
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}
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// SetOnDoneFunc changes the handler func that gets called when the overlay finishes playing.
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func (co *CastOverlay) SetOnDoneFunc(onDoneFunc func()) {
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co.onDoneFunc = onDoneFunc
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}
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// Advance is called once per frame and processes a single game tick.
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func (co *CastOverlay) Advance(tickTime float64) {
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co.Step(tickTime)
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co.AnimatedEntity.Advance(tickTime)
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if !co.playLoop && co.AnimatedEntity.animation.GetPlayedCount() >= 1 {
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co.onDoneFunc()
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}
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}
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