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mirror of https://github.com/OpenDiablo2/OpenDiablo2 synced 2024-11-07 10:47:19 -05:00
OpenDiablo2/d2render/AnimatedEntity.go
2019-11-10 03:36:53 -05:00

219 lines
7.2 KiB
Go

package d2render
import (
"fmt"
"image"
"strings"
"time"
"github.com/OpenDiablo2/OpenDiablo2/d2helper"
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2interface"
"github.com/OpenDiablo2/OpenDiablo2/d2common/d2enum"
"github.com/OpenDiablo2/OpenDiablo2/d2common"
"github.com/OpenDiablo2/OpenDiablo2/d2data"
"github.com/OpenDiablo2/OpenDiablo2/d2data/datadict"
"github.com/hajimehoshi/ebiten"
)
var DccLayerNames = []string{"HD", "TR", "LG", "RA", "LA", "RH", "LH", "SH", "S1", "S2", "S3", "S4", "S5", "S6", "S7", "S8"}
// AnimatedEntity represents an entity on the map that can be animated
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]*d2data.DCC
Cof *d2data.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 d2data.Object
}
// CreateAnimatedEntity creates an instance of AnimatedEntity
func CreateAnimatedEntity(object d2data.Object, fileProvider d2interface.FileProvider, palette d2enum.PaletteType) *AnimatedEntity {
result := &AnimatedEntity{
base: object.Lookup.Base,
token: object.Lookup.Token,
object: object,
palette: palette,
}
result.dccLayers = make(map[string]*d2data.DCC)
result.LocationX = float64(object.X) / 5
result.LocationY = float64(object.Y) / 5
return result
}
// DirectionLookup is used to decode the direction offset indexes
var DirectionLookup = []int{3, 15, 4, 8, 0, 9, 5, 10, 1, 11, 6, 12, 2, 13, 7, 14}
// SetMode changes the graphical mode of this animated entity
func (v *AnimatedEntity) SetMode(animationMode, weaponClass string, direction int, provider d2interface.FileProvider) {
cofPath := fmt.Sprintf("%s/%s/Cof/%s%s%s.Cof", v.base, v.token, v.token, animationMode, weaponClass)
v.Cof = d2data.LoadCof(cofPath, provider)
v.animationMode = animationMode
v.weaponClass = weaponClass
v.direction = direction
if v.direction >= v.Cof.NumberOfDirections {
v.direction = v.Cof.NumberOfDirections - 1
}
v.frames = make(map[string][]*ebiten.Image)
v.frameLocations = make(map[string][]d2common.Rectangle)
v.dccLayers = make(map[string]*d2data.DCC)
for _, cofLayer := range v.Cof.CofLayers {
layerName := DccLayerNames[cofLayer.Type]
v.dccLayers[layerName] = v.LoadLayer(layerName, provider)
if v.dccLayers[layerName] == nil {
continue
}
v.cacheFrames(layerName)
}
}
func (v *AnimatedEntity) LoadLayer(layer string, fileProvider d2interface.FileProvider) *d2data.DCC {
layerName := "tr"
switch strings.ToUpper(layer) {
case "HD": // Head
layerName = v.object.Lookup.HD
case "TR": // Torso
layerName = v.object.Lookup.TR
case "LG": // Legs
layerName = v.object.Lookup.LG
case "RA": // RightArm
layerName = v.object.Lookup.RA
case "LA": // LeftArm
layerName = v.object.Lookup.LA
case "RH": // RightHand
layerName = v.object.Lookup.RH
case "LH": // LeftHand
layerName = v.object.Lookup.LH
case "SH": // Shield
layerName = v.object.Lookup.SH
case "S1": // Special1
layerName = v.object.Lookup.S1
case "S2": // Special2
layerName = v.object.Lookup.S2
case "S3": // Special3
layerName = v.object.Lookup.S3
case "S4": // Special4
layerName = v.object.Lookup.S4
case "S5": // Special5
layerName = v.object.Lookup.S5
case "S6": // Special6
layerName = v.object.Lookup.S6
case "S7": // Special7
layerName = v.object.Lookup.S7
case "S8": // Special8
layerName = v.object.Lookup.S8
}
if len(layerName) == 0 {
return nil
}
dccPath := fmt.Sprintf("%s/%s/%s/%s%s%s%s%s.dcc", v.base, v.token, layer, v.token, layer, layerName, v.animationMode, v.weaponClass)
return d2data.LoadDCC(dccPath, fileProvider)
}
// Render draws this animated entity onto the target
func (v *AnimatedEntity) Render(target *ebiten.Image, offsetX, offsetY int) {
for v.lastFrameTime.Add(time.Millisecond * time.Duration(v.animationSpeed)).Before(time.Now()) {
v.lastFrameTime = v.lastFrameTime.Add(time.Millisecond * time.Duration(v.animationSpeed))
v.currentFrame++
if v.currentFrame >= v.framesToAnimate {
v.currentFrame = 0
}
}
for idx := 0; idx < v.Cof.NumberOfLayers; idx++ {
priority := v.Cof.Priority[v.direction][v.currentFrame][idx]
if int(priority) >= len(DccLayerNames) {
continue
}
frameName := DccLayerNames[priority]
if v.frames[frameName] == nil {
continue
}
// 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))
target.DrawImage(v.frames[frameName][v.currentFrame], opts)
}
}
func (v *AnimatedEntity) cacheFrames(layerName string) {
dcc := v.dccLayers[layerName]
v.currentFrame = 0
animationData := d2data.AnimationData[strings.ToLower(v.token+v.animationMode+v.weaponClass)][0]
v.animationSpeed = int(1000.0 / ((float64(animationData.AnimationSpeed) * 25.0) / 256.0))
v.framesToAnimate = animationData.FramesPerDirection
v.lastFrameTime = time.Now()
minX := int32(10000)
minY := int32(10000)
maxX := int32(-10000)
maxY := int32(-10000)
for _, layer := range dcc.Directions {
minX = d2helper.MinInt32(minX, int32(layer.Box.Left))
minY = d2helper.MinInt32(minY, int32(layer.Box.Top))
maxX = d2helper.MaxInt32(maxX, int32(layer.Box.Right()))
maxY = d2helper.MaxInt32(maxY, int32(layer.Box.Bottom()))
}
frameW := maxX - minX
frameH := maxY - minY
v.frames[layerName] = make([]*ebiten.Image, v.framesToAnimate)
v.frameLocations[layerName] = make([]d2common.Rectangle, v.framesToAnimate)
for frameIndex := range v.frames[layerName] {
v.frames[layerName][frameIndex], _ = ebiten.NewImage(int(frameW), int(frameH), ebiten.FilterNearest)
for layerIdx := 0; layerIdx < v.Cof.NumberOfLayers; layerIdx++ {
transparency := byte(255)
if v.Cof.CofLayers[layerIdx].Transparent {
transparency = byte(128)
}
direction := dcc.Directions[v.direction]
frame := direction.Frames[frameIndex]
img := image.NewRGBA(image.Rect(0, 0, int(frameW), int(frameH)))
for y := 0; y < direction.Box.Height; y++ {
for x := 0; x < direction.Box.Width; x++ {
paletteIndex := frame.PixelData[x+(y*direction.Box.Width)]
if paletteIndex == 0 {
continue
}
color := datadict.Palettes[v.palette].Colors[paletteIndex]
actualX := x + direction.Box.Left - int(minX)
actualY := y + direction.Box.Top - int(minY)
img.Pix[(actualX*4)+(actualY*int(frameW)*4)] = color.R
img.Pix[(actualX*4)+(actualY*int(frameW)*4)+1] = color.G
img.Pix[(actualX*4)+(actualY*int(frameW)*4)+2] = color.B
img.Pix[(actualX*4)+(actualY*int(frameW)*4)+3] = transparency
}
}
newImage, _ := ebiten.NewImageFromImage(img, ebiten.FilterNearest)
img = nil
v.frames[layerName][frameIndex] = newImage
v.frameLocations[layerName][frameIndex] = d2common.Rectangle{
Left: int(minX),
Top: int(minY),
Width: int(frameW),
Height: int(frameH),
}
}
}
}