Implemented multilayer handling

cmd/server.go

@@ -23,7 +23,7 @@ gosl.json for configuration (Port/Address, Level)
 	//	Run:
 }
 
-const ClientOffset = 10
+const ClientOffset = 0
 
 type goslClient struct {
 	con *net.TCPConn

data/level.go

@@ -4,7 +4,7 @@ import (
 	"encoding/gob"
 	"log"
 	"os"
-	//"sort"
+	"sort"
 )
 
 type directionType int
@@ -41,6 +41,7 @@ type Level struct {
 	Name   string
 	FPS    int
 	Layers map[string]*Layer
+	lorder []zString // ordered key list (by z index)
 }
 
 //func (lvl *Level) AddLayer(z int, l *Layer) {
@@ -100,8 +101,31 @@ func (lvl *Level) Width() (max int) {
 	return
 }
 
+// Implement Sorter
+type zString struct {
+	id string
+	z  int
+}
+type ByZ []zString
+
+func (a ByZ) Len() int           { return 1 }
+func (a ByZ) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }
+func (a ByZ) Less(i, j int) bool { return a[i].z < a[j].z }
+
+func (lvl *Level) initOrder() {
+	if lvl.lorder == nil {
+		lvl.lorder = []zString{}
+		for k, v := range lvl.Layers {
+			lvl.lorder = append(lvl.lorder, zString{k, v.Z})
+		}
+		sort.Sort(ByZ(lvl.lorder))
+		sort.Reverse(ByZ(lvl.lorder))
+	}
+}
+
 //testcomment
 func (lvl *Level) GetFrame(o, w, maxW, frameNo int) (ret *Frame) {
+	lvl.initOrder()
 	h := lvl.Height()
 
 	ret = &Frame{
@@ -116,8 +140,10 @@ func (lvl *Level) GetFrame(o, w, maxW, frameNo int) (ret *Frame) {
 		ret.Data = append(ret.Data, mdata[y*w:(y+1)*w])
 	}
 
-	for _, layer := range lvl.Layers {
-		if layer.Z == 0 {
+	for zli, zl := range lvl.lorder {
+		layer := lvl.Layers[zl.id]
+		//for _, layer := range lvl.Layers {
+		//if layer.Z == 0 {
 		for row := 0; row < h; row++ {
 			//ret.Data = append(ret.Data, []rune{})
 
@@ -151,15 +177,17 @@ func (lvl *Level) GetFrame(o, w, maxW, frameNo int) (ret *Frame) {
 					if 0 < ro && ro < len(r) && string(r[ro]) != layer.T {
 						ret.Data[row][col] = r[ro]
 					} else {
+						if zli == 0 {
 							ret.Data[row][col] = rune(' ')
 						}
 					}
+				}
 				//for col := 0
 				//log.Println(len(layer.Frames[f][row]))
 				//ret.Data[row] = append(ret.Data[row], (layer.Frames[f][row][off%w:])...)
 			}
 		}
-		}
+		//}
 	}
 
 	return

levels/locoworld/Manifest.json

@@ -5,10 +5,16 @@
     "locomotive": {
       "Z-Index": 0,
       "Direction": 4,
-      "Speed": 1,
+      "Speed": 3,
       "Repeat": false,
       "Transparent": "•"
+    },
+    "ground": {
+      "Z-Index": 1,
+      "Direction": 6,
+      "Speed": 1,
+      "Repeat": true,
+      "Transparent": "ä"
     }
-
   }
 }

levels/locoworld/ground/1.frame

@@ -0,0 +1,11 @@
+
+
+
+
+
+
+
+
+
+
+=====================--=================-==============--======-===========-====