Adding modding folder with a hacked build.

modding/hacked/editor/textures/SetTextureBitmapCommand.go

@@ -0,0 +1,50 @@
+package textures
+
+import (
+	"fmt"
+
+	"github.com/inkyblackness/hacked/ss1/resource"
+	"github.com/inkyblackness/hacked/ss1/world"
+	"github.com/inkyblackness/hacked/ss1/world/ids"
+)
+
+type setTextureBitmapCommand struct {
+	model *viewModel
+
+	textureIndex int
+	id           resource.ID
+
+	oldData []byte
+	newData []byte
+}
+
+func (command setTextureBitmapCommand) Do(modder world.Modder) error {
+	return command.perform(modder, command.newData)
+}
+
+func (command setTextureBitmapCommand) Undo(modder world.Modder) error {
+	return command.perform(modder, command.oldData)
+}
+
+func (command setTextureBitmapCommand) perform(modder world.Modder, data []byte) error {
+	info, existing := ids.Info(command.id)
+	if !existing {
+		panic(fmt.Sprintf("unknown identifier for bitmap resource: %v", command.id))
+	}
+	resourceID := command.id
+	blockIndex := command.textureIndex
+	if !info.List {
+		resourceID = resourceID.Plus(blockIndex)
+		blockIndex = 0
+	}
+
+	if (len(data) > 0) || info.List {
+		modder.SetResourceBlock(resource.LangAny, resourceID, blockIndex, data)
+	} else {
+		modder.DelResource(resource.LangAny, resourceID)
+	}
+
+	command.model.restoreFocus = true
+	command.model.currentIndex = command.textureIndex
+	return nil
+}