mirror of
https://github.com/OpenDiablo2/OpenDiablo2
synced 2024-06-20 06:05:23 +00:00
894c60f77a
* Fixed NaN on normalize 0 vector. * Tentative implementation in getStepLength. * mapEntity.TileX/Y removed. * Fixed Position and Target not being initialised in createMapEntity. * mapEntity.Position is no longer embedded. * mapEntity.LocationX/Y no longer used outside map_entity.go. * mapEntity.subCellX/Y removed. * mapEntity.LocationX/Y removed. * mapEntity.OffsetX/Y and TargetX/Y removed. * Direction method added to Vector, returns 0-64 direction. * Moved Vector.Direction() to Position.DirectionTo and refactored. * Renamed RenderOffset from SubCell and tested IsZero. * d2math.WrapInt added for use with directions. * Tidied up position and tests. * Refactored d2common.AdjustWithRemainder into d2mapEntity. * Tidying up d2mapEntity. * Final cleanup. * Lint warnings. * Spelling correction.
67 lines
1.8 KiB
Go
67 lines
1.8 KiB
Go
package d2mapentity
|
|
|
|
import (
|
|
"fmt"
|
|
"math"
|
|
|
|
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2data/d2datadict"
|
|
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2enum"
|
|
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2resource"
|
|
"github.com/OpenDiablo2/OpenDiablo2/d2core/d2asset"
|
|
)
|
|
|
|
// Missile is a simple animated entity representing a projectile,
|
|
// such as a spell or arrow.
|
|
type Missile struct {
|
|
*AnimatedEntity
|
|
record *d2datadict.MissileRecord
|
|
}
|
|
|
|
// CreateMissile creates a new Missile and initializes it's animation.
|
|
func CreateMissile(x, y int, record *d2datadict.MissileRecord) (*Missile, error) {
|
|
animation, err := d2asset.LoadAnimation(
|
|
fmt.Sprintf("%s/%s.dcc", d2resource.MissileData, record.Animation.CelFileName),
|
|
d2resource.PaletteUnits,
|
|
)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
if record.Animation.HasSubLoop {
|
|
animation.SetSubLoop(record.Animation.SubStartingFrame, record.Animation.SubEndingFrame)
|
|
}
|
|
|
|
animation.SetEffect(d2enum.DrawEffectModulate)
|
|
// animation.SetPlaySpeed(float64(record.Animation.AnimationSpeed))
|
|
animation.SetPlayLoop(record.Animation.LoopAnimation)
|
|
animation.PlayForward()
|
|
entity := CreateAnimatedEntity(x, y, animation)
|
|
|
|
result := &Missile{
|
|
AnimatedEntity: entity,
|
|
record: record,
|
|
}
|
|
result.Speed = float64(record.Velocity)
|
|
|
|
return result, nil
|
|
}
|
|
|
|
// SetRadians adjusts the entity target based on it's range, rotating it's
|
|
// current destination by the value of angle in radians.
|
|
func (m *Missile) SetRadians(angle float64, done func()) {
|
|
r := float64(m.record.Range)
|
|
|
|
x := m.Position.X() + (r * math.Cos(angle))
|
|
y := m.Position.Y() + (r * math.Sin(angle))
|
|
|
|
m.SetTarget(x, y, done)
|
|
}
|
|
|
|
// Advance is called once per frame and processes a
|
|
// single game tick.
|
|
func (m *Missile) Advance(tickTime float64) {
|
|
// TODO: collision detection
|
|
m.Step(tickTime)
|
|
m.AnimatedEntity.Advance(tickTime)
|
|
}
|