From 85fc1f809f616b0038b986114b468af6b3b3534b Mon Sep 17 00:00:00 2001
From: Kevin Chabowski <kevin@kch42.de>
Date: Thu, 15 Aug 2013 23:22:33 +0200
Subject: Undo will not be implemented at the moment

---
 main.go  |  8 ++++----
 tools.go | 46 ++++++++++++++++------------------------------
 2 files changed, 20 insertions(+), 34 deletions(-)

diff --git a/main.go b/main.go
index 5f68010..ba84bdc 100644
--- a/main.go
+++ b/main.go
@@ -95,7 +95,7 @@ func (g *GUI) mkMenuBar() *gtk.MenuBar {
 	fileMenuItem.SetSubmenu(fileMenu)
 	menubar.Append(fileMenuItem)
 
-	editMenu := gtk.NewMenu()
+	/*editMenu := gtk.NewMenu()
 
 	undo := gtk.NewMenuItemWithLabel("Undo")
 	undo.Connect("activate", g.undo)
@@ -103,7 +103,7 @@ func (g *GUI) mkMenuBar() *gtk.MenuBar {
 
 	editMenuItem := gtk.NewMenuItemWithLabel("Edit")
 	editMenuItem.SetSubmenu(editMenu)
-	menubar.Append(editMenuItem)
+	menubar.Append(editMenuItem)*/
 
 	helpMenu := gtk.NewMenu()
 
@@ -256,9 +256,9 @@ func (g *GUI) showbiomesToggled() {
 	g.mapw.SetShowBiomes(g.showbiomes.GetActive())
 }
 
-func (g *GUI) undo() {
+/*func (g *GUI) undo() {
 	fmt.Println("Undo")
-}
+}*/
 
 func (g *GUI) Show() {
 	g.window.ShowAll()
diff --git a/tools.go b/tools.go
index ffb763a..b75480f 100644
--- a/tools.go
+++ b/tools.go
@@ -4,19 +4,18 @@ import (
 	"github.com/kch42/gomcmap/mcmap"
 )
 
-type BiomeGetter interface {
+type BiomeGetSetter interface {
 	GetBiome(x, z int) (mcmap.Biome, bool)
+	SetBiome(x, z int, bio mcmap.Biome)
 }
 
 type XZPos struct {
 	X, Z int
 }
 
-type Change map[XZPos]mcmap.Biome
-
 type Tool interface {
 	SingleClick() bool // Whether only one click should be performed (true) or the action should be repeated, if the mouse is dragged
-	Do(bio mcmap.Biome, bioget BiomeGetter, x, z int) Change
+	Do(bio mcmap.Biome, biogs BiomeGetSetter, x, z int)
 }
 
 type drawTool struct {
@@ -25,20 +24,17 @@ type drawTool struct {
 
 func (d *drawTool) SingleClick() bool { return false }
 
-func (d *drawTool) Do(bio mcmap.Biome, bioget BiomeGetter, x, z int) Change {
+func (d *drawTool) Do(bio mcmap.Biome, biogs BiomeGetSetter, x, z int) {
 	rad := d.radGetter()
 	if rad <= 0 {
-		return nil
+		return
 	}
 
-	change := make(Change)
 	for xp := x - (rad - 1); xp < x+rad; xp++ {
 		for zp := z - (rad - 1); zp < z+rad; zp++ {
-			change[XZPos{xp, zp}] = bio
+			biogs.SetBiome(xp, zp, bio)
 		}
 	}
-
-	return change
 }
 
 func NewDrawTool(radGetter func() int) *drawTool {
@@ -49,30 +45,20 @@ type fillTool struct{}
 
 func (f *fillTool) SingleClick() bool { return true }
 
-func (f *fillTool) Do(bio mcmap.Biome, bioget BiomeGetter, x, z int) Change {
-	oldbio, ok := bioget.GetBiome(x, z)
-	if !ok {
-		return nil
+func (f *fillTool) Do(bio mcmap.Biome, biogs BiomeGetSetter, x, z int) {
+	if oldbio, ok := biogs.GetBiome(x, z); ok {
+		floodfill(oldbio, bio, biogs, x, z)
 	}
-
-	change := make(Change)
-	floodfill(oldbio, bio, bioget, x, z, change)
-	return change
 }
 
-func floodfill(oldbio, newbio mcmap.Biome, bioget BiomeGetter, x, z int, change Change) {
-	pos := XZPos{x, z}
-	if _, ok := change[pos]; ok {
-		return
-	}
-
-	if bio, ok := bioget.GetBiome(x, z); ok && (bio == oldbio) {
-		change[pos] = newbio
+func floodfill(oldbio, newbio mcmap.Biome, biogs BiomeGetSetter, x, z int) {
+	if bio, ok := biogs.GetBiome(x, z); ok && (bio == oldbio) {
+		biogs.SetBiome(x, z, newbio)
 
-		floodfill(oldbio, newbio, bioget, x-1, z, change)
-		floodfill(oldbio, newbio, bioget, x+1, z, change)
-		floodfill(oldbio, newbio, bioget, x, z-1, change)
-		floodfill(oldbio, newbio, bioget, x, z+1, change)
+		floodfill(oldbio, newbio, biogs, x-1, z)
+		floodfill(oldbio, newbio, biogs, x+1, z)
+		floodfill(oldbio, newbio, biogs, x, z-1)
+		floodfill(oldbio, newbio, biogs, x, z+1)
 	}
 }
 
-- 
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