From 602949f1eb11416a5cbc79bdac9c7234ebd72dd9 Mon Sep 17 00:00:00 2001
From: tkarrass <tkarrass@bitsetter.de>
Date: Sat, 6 Feb 2016 22:08:04 +0100
Subject: [PATCH] Read Frame data

---
 cmd/compile.go                 | 85 +++++++++++++++++++++++++++++++++-
 cmd/server.go                  |  1 -
 levels/locoworld/Manifest.json | 16 ++++++-
 3 files changed, 99 insertions(+), 3 deletions(-)

diff --git a/cmd/compile.go b/cmd/compile.go
index d60e991..bbc79a5 100644
--- a/cmd/compile.go
+++ b/cmd/compile.go
@@ -1,11 +1,52 @@
 package cmd // code.bitsetter.de/fun/gosl/cmd
 
 import (
+	"encoding/json"
+	"fmt"
 	"github.com/spf13/cobra"
+	"io/ioutil"
 	"log"
+
 	"path"
+	"strconv"
+	"strings"
 )
 
+type directionType int
+
+const (
+	DIR_NULL directionType = iota // Undefined direction: NO Motion
+	DIR_SW                        //
+	DIR_S                         //  NW   N   NE
+	DIR_SE                        //     7 8 9
+	DIR_W                         //  W  4 5 6  E
+	DIR_NONE                      //     1 2 3
+	DIR_E                         //  SW   S   SE
+	DIR_NW
+	DIR_N
+	DIR_NE
+)
+
+type Direction interface {
+	Base() directionType
+}
+
+func (i directionType) Base() directionType { return i }
+
+type LayerManifest struct {
+	Z      int           `json:"Z-Index"`
+	D      directionType `json:"Direction"`
+	S      int           `json:"Speed"`
+	T      string        `json:"Transparent"`
+	Frames map[int]([][]rune)
+}
+
+type LevelManifest struct {
+	Name   string
+	FPS    int
+	Layers map[string]*LayerManifest
+}
+
 var (
 	levelDir  string
 	levelFile string
@@ -20,7 +61,6 @@ It's contents contain at least:
   / leveldir
      +-- Manifest.json        Basic level Info
 	 +-- Layer1/              At least one layer dir containing …
-	      +-- Manifest.json    Basic layer Info
 	      +-- 1.Frame          At least one frame
 
 See the example level for further details (which does not exist, yet :p)`,
@@ -36,6 +76,49 @@ func compile(cmd *cobra.Command, args []string) {
 	}
 	log.Println("will compile to", levelFile)
 
+	lvlMan := &LevelManifest{}
+	buf, err := ioutil.ReadFile(levelDir + "/Manifest.json")
+	if err != nil {
+		log.Fatal("Error reading file: ", err)
+	}
+
+	err = json.Unmarshal(buf, lvlMan)
+	if err != nil {
+		log.Fatal("Error reading level manifest: ", err)
+	}
+
+	fmt.Println(lvlMan)
+
+	for k, _ := range lvlMan.Layers {
+		log.Println("Processing layer: ", k)
+		dirlist, derr := ioutil.ReadDir(levelDir + "/" + k)
+		if derr != nil {
+			log.Println("Layer directory error: ", derr)
+		} else {
+			lvlMan.Layers[k].Frames = make(map[int]([][]rune))
+			for _, fi := range dirlist {
+				if path.Ext(fi.Name()) == ".frame" {
+					log.Println(fi.Name())
+					fdata, derr := ioutil.ReadFile(levelDir + "/" + k + "/" + fi.Name())
+					if derr != nil {
+						log.Println("Error reading frame: ", derr)
+					} else {
+						rdata := make([][]rune, 0, 25)
+						for _, line := range strings.Split(string(fdata), "\n") {
+							rdata = append(rdata, []rune(line))
+						}
+						idx, ierr := strconv.Atoi(strings.TrimSuffix(fi.Name(), path.Ext(fi.Name())))
+						if ierr != nil {
+							log.Printf("Invalid Index in Filename: ", ierr)
+						} else {
+							lvlMan.Layers[k].Frames[idx] = rdata
+						}
+					}
+				}
+			}
+		}
+	}
+
 }
 
 func init() {
diff --git a/cmd/server.go b/cmd/server.go
index 0e297b5..ef3d1ad 100644
--- a/cmd/server.go
+++ b/cmd/server.go
@@ -2,7 +2,6 @@ package cmd // code.bitsetter.de/fun/gosl/cmd
 
 import (
 	"encoding/gob"
-	"fmt"
 	"log"
 	"net"
 	"sort"
diff --git a/levels/locoworld/Manifest.json b/levels/locoworld/Manifest.json
index 1241bee..d4a778e 100644
--- a/levels/locoworld/Manifest.json
+++ b/levels/locoworld/Manifest.json
@@ -1,4 +1,18 @@
 { 
   "Name": "The locomotive!",
-  "FPS": 10
+  "FPS": 10,
+  "Layers" : {
+     "locomotive": {
+	 	"Z-Index": 0,
+		"Direction": 6,
+		"Speed": 2,
+		"Transparent": "•"
+	 },
+	 "background": {
+	 	"Z-Index": 1,
+		"Direction": 6,
+		"Speed": 1,
+		"Transparent": "•"
+	 }
+  }
 }