image path helper functions

konstructor/layout.render.go

@@ -8,13 +8,18 @@ import (
 )
 
 type Render struct {
-	Image   string
-	Width   int
-	Height  int
-	Visible bool
+	Image       string
+	Width       int
+	Height      int
+	Visible     bool
+	cachedImage image.Image
 }
 
 func (ro *Render) GetImage() image.Image {
+	if ro.cachedImage != nil {
+		return ro.cachedImage
+	}
+
 	file, err := ioutil.ReadFile(ro.Image)
 	if err != nil {
 		log.Fatal(err)
@@ -24,5 +29,6 @@ func (ro *Render) GetImage() image.Image {
 	if err != nil {
 		log.Fatal(err)
 	}
+	ro.cachedImage = img
 	return img
 }

konstructor/object.go

@@ -0,0 +1,21 @@
+package konstructor
+
+type ObjectType string
+
+const (
+	ItemObjectType     ObjectType = "item"
+	NPCObjectType      ObjectType = "npc"
+	PlatformObjectType ObjectType = "platform"
+)
+
+type ObjectDirectoryMap map[ObjectType]string
+
+var ObjectDirectories = ObjectDirectoryMap{
+	ItemObjectType:     "items",
+	NPCObjectType:      "npcs",
+	PlatformObjectType: "platforms",
+}
+
+func GetObjectDirectory(name ObjectType) string {
+	return "assets/images/" + ObjectDirectories[name] + "/"
+}

konstructor/object.item.go

@@ -14,3 +14,7 @@ type Item struct {
 	Type     ItemType
 	Position Position
 }
+
+func GetItemTypeImagePath(name ItemTypeMapKey) string {
+	return GetObjectDirectory(ItemObjectType) + string(name) + ".png"
+}

konstructor/object.npc.go

@@ -14,3 +14,7 @@ type NPC struct {
 	Type     NPCType
 	Position Position
 }
+
+func GetNPCTypeImagePath(name NPCTypeMapKey) string {
+	return GetObjectDirectory(NPCObjectType) + string(name) + ".png"
+}

konstructor/object.platform.go

@@ -14,3 +14,7 @@ type Platform struct {
 	Type     PlatformType
 	Position Position
 }
+
+func GetPlatformTypeImagePath(name PlatformTypeMapKey) string {
+	return GetObjectDirectory(PlatformObjectType) + string(name) + ".png"
+}

konstructor/screen.playground.go

@@ -1,5 +1,7 @@
 package konstructor
 
+type PlaygroundID string
+
 type Position struct {
 	X int
 	Y int
@@ -7,6 +9,7 @@ type Position struct {
 }
 
 type Playground struct {
+	ID        PlaygroundID
 	Render    Render
 	Platforms []Platform
 	NPCs      []NPC
@@ -18,3 +21,7 @@ type Level struct {
 	Name        string
 	Playgrounds []Playground
 }
+
+func GetPlaygroundImagePath(name PlaygroundID) string {
+	return "assets/images/playgrounds/" + string(name) + ".png"
+}