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Code Issues Releases Wiki Activity

Place objects according to sub-cell (#165)

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This commit is contained in:
Ziemas 2019-11-14 02:31:47 +01:00 committed by Tim Sarbin
parent f2ac62bf18
commit e2bee09469
1 changed files with 30 additions and 18 deletions
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48
d2render/animated_entity.go
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@ -4,6 +4,7 @@ import (
"fmt"
"image"
"log"
"math"
"strings"
"time"
@ -33,22 +34,23 @@ type AnimatedEntity struct {
// LocationX represents the tile X position of the entity
LocationX float64
// LocationY represents the tile Y position of the entity
LocationY float64
dccLayers map[string]d2dcc.DCC
Cof *d2cof.COF
palette d2enum.PaletteType
base string
token string
animationMode string
weaponClass string
lastFrameTime time.Time
framesToAnimate int
animationSpeed int
direction int
currentFrame int
frames map[string][]*ebiten.Image
frameLocations map[string][]d2common.Rectangle
object *d2datadict.ObjectLookupRecord
subcellX, subcellY float64 // Subcell coordinates within the current tile
LocationY float64
dccLayers map[string]d2dcc.DCC
Cof *d2cof.COF
palette d2enum.PaletteType
base string
token string
animationMode string
weaponClass string
lastFrameTime time.Time
framesToAnimate int
animationSpeed int
direction int
currentFrame int
frames map[string][]*ebiten.Image
frameLocations map[string][]d2common.Rectangle
object *d2datadict.ObjectLookupRecord
}
// CreateAnimatedEntity creates an instance of AnimatedEntity
@ -62,6 +64,10 @@ func CreateAnimatedEntity(x, y int32, object *d2datadict.ObjectLookupRecord, fil
result.dccLayers = make(map[string]d2dcc.DCC)
result.LocationX = float64(x) / 5
result.LocationY = float64(y) / 5
result.subcellX = 1 + math.Mod(float64(x), 5)
result.subcellY = 1 + math.Mod(float64(y), 5)
return result
}
@ -155,10 +161,16 @@ func (v *AnimatedEntity) Render(target *ebiten.Image, offsetX, offsetY int) {
if v.frames[frameName] == nil {
continue
}
// TODO: Probably not pixel perfect, should render from center of sub-tile?
// Location within the current tile
localX := (v.subcellX - v.subcellY) * 16
localY := (v.subcellX + v.subcellY) * 8
// TODO: Transparency op maybe, but it'l murder batch calls
opts := &ebiten.DrawImageOptions{}
opts.GeoM.Translate(float64(v.frameLocations[frameName][v.currentFrame].Left+offsetX),
float64(v.frameLocations[frameName][v.currentFrame].Top+offsetY+40))
opts.GeoM.Translate(float64(v.frameLocations[frameName][v.currentFrame].Left+offsetX)+localX,
float64(v.frameLocations[frameName][v.currentFrame].Top+offsetY)+localY)
if err := target.DrawImage(v.frames[frameName][v.currentFrame], opts); err != nil {
log.Panic(err.Error())
}