Added: Multi-sprite drag, Sprite selection memory between frames, Frame naming

AnimationEditor/AnimationPreview.cs

@@ -20,7 +20,7 @@ namespace AnimationEditor
         public float ZoomLevel { get; set; }
         public Vector3 CameraLocation { get; set; }
 
-        public Sprite EditSprite { get; set; }
+        public List<Sprite> EditSprites { get; set; }
 
         public int PixelGridDisplayLevel { get; set; }
         public int GridSpacing { get; set; }
@@ -142,22 +142,27 @@ namespace AnimationEditor
 
         private void HandleDragging()
         {
-            if (EditSprite != null)
+            if (EditSprites != null && EditSprites.Count > 0)
             {
-                /*create draggable rect spriteRect at 0,0
+                bool hoverFound = false;
-                 *rect is scaled by Zoomlevel to match sprite's onscreen size
+                foreach (Sprite spr in EditSprites)
-                 *rect is then offset to match sprite's offset & origin(multiplied by the zoomlevel)
+                {
-                 *rect is then offset by the camera's location(multiplied by zoomlevel) and the onscreen centerpoint
+                    /*create draggable rect spriteRect at 0,0
-                 *this results in a rect that matches the sprite's onscreen position regardless of pan or zoom
+                     *rect is scaled by Zoomlevel to match sprite's onscreen size
-                 */
+                     *rect is then offset to match sprite's offset & origin(multiplied by the zoomlevel)
-                Rectangle spriteRect = new Rectangle(0, 0, (int)(EditSprite.Bounds.Width * ZoomLevel), (int)(EditSprite.Bounds.Height * ZoomLevel));
+                     *rect is then offset by the camera's location(multiplied by zoomlevel) and the onscreen centerpoint
-                spriteRect.Offset((EditSprite.Offset - EditSprite.Origin) * ZoomLevel + new Vector2(CameraLocation.X, CameraLocation.Y) * ZoomLevel + centerPoint);
+                     *this results in a rect that matches the sprite's onscreen position regardless of pan or zoom
+                     */
+                    Rectangle sprRect = new Rectangle(0, 0, (int)(spr.Bounds.Width * ZoomLevel), (int)(spr.Bounds.Height * ZoomLevel));
+                    sprRect.Offset((spr.Offset - spr.Origin) * ZoomLevel + new Vector2(CameraLocation.X, CameraLocation.Y) * ZoomLevel + centerPoint);
+                    if (sprRect.Contains(mState.Position))
+                    {
+                        hoverFound = true;
+                        break;
+                    }
+                }
 
-                //fix for when detecting the mouse being within Bounds made an uninteractable section appear at the top of screen and allowed interaction below bottom
+                if (hoverFound)
-                Rectangle frame = new Rectangle(Bounds.X, Bounds.Y, Bounds.Width, Bounds.Height);
-                frame.Y = 0;
-
-                if (spriteRect.Contains(mState.Position))
                 {
                     if (!hovering)
                     {
@@ -189,7 +194,10 @@ namespace AnimationEditor
 
                     if (distMoved != Vector2.Zero)
                     {
-                        EditSprite.Offset += distMoved;
+                        foreach(Sprite spr in EditSprites)
+                        {
+                            spr.Offset += distMoved;
+                        }
                         OnSpriteMoved(new EventArgs());
                     }
                 }

AnimationEditor/Form1.Designer.cs

@@ -63,17 +63,19 @@
             this.frameEditorPanel = new System.Windows.Forms.Panel();
             this.frameNameBox = new System.Windows.Forms.TextBox();
             this.frameSpritePanel = new System.Windows.Forms.Panel();
+            this.spritePosPanel = new System.Windows.Forms.Panel();
+            this.frameSpritePositionLabel = new System.Windows.Forms.Label();
+            this.spriteYPosLabel = new System.Windows.Forms.Label();
+            this.spriteXPosLabel = new System.Windows.Forms.Label();
+            this.spriteYPosBox = new System.Windows.Forms.NumericUpDown();
+            this.spriteXPosBox = new System.Windows.Forms.NumericUpDown();
             this.removeSpriteButton = new System.Windows.Forms.Button();
             this.moveSpriteUpButton = new System.Windows.Forms.Button();
             this.moveSpriteDownButton = new System.Windows.Forms.Button();
-            this.frameSpritePositionLabel = new System.Windows.Forms.Label();
             this.frameSpriteListBox = new System.Windows.Forms.ListBox();
-            this.spriteYPosLabel = new System.Windows.Forms.Label();
-            this.spriteXPosLabel = new System.Windows.Forms.Label();
             this.frameSpriteListLabel = new System.Windows.Forms.Label();
+            this.replaceSpriteButton = new System.Windows.Forms.Button();
             this.addSpriteToFrameSpritesButton = new System.Windows.Forms.Button();
-            this.spriteYPosBox = new System.Windows.Forms.NumericUpDown();
-            this.spriteXPosBox = new System.Windows.Forms.NumericUpDown();
             this.importDelayLabel = new System.Windows.Forms.Label();
             this.importValuesLabel = new System.Windows.Forms.Label();
             this.importDelayBox = new System.Windows.Forms.NumericUpDown();
@@ -82,20 +84,20 @@
             this.frameInfoLabel = new System.Windows.Forms.Label();
             this.frameBoxLabel = new System.Windows.Forms.Label();
             this.spriteBoxLabel = new System.Windows.Forms.Label();
+            this.duplicateFrameButton = new System.Windows.Forms.Button();
             this.addEmptyFrameButton = new System.Windows.Forms.Button();
             this.animationPanel = new System.Windows.Forms.Panel();
             this.animationNameLabel = new System.Windows.Forms.Label();
             this.animationLabel = new System.Windows.Forms.Label();
-            this.loadAnimationSetDialog = new System.Windows.Forms.OpenFileDialog();
-            this.duplicateFrameButton = new System.Windows.Forms.Button();
             this.animationPreview = new AnimationEditor.AnimationPreview();
-            this.replaceSpriteButton = new System.Windows.Forms.Button();
+            this.loadAnimationSetDialog = new System.Windows.Forms.OpenFileDialog();
             ((System.ComponentModel.ISupportInitialize)(this.spritePreview)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.frameTrackBar)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.delayInputBox)).BeginInit();
             this.mainMenuStrip.SuspendLayout();
             this.frameEditorPanel.SuspendLayout();
             this.frameSpritePanel.SuspendLayout();
+            this.spritePosPanel.SuspendLayout();
             ((System.ComponentModel.ISupportInitialize)(this.spriteYPosBox)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.spriteXPosBox)).BeginInit();
             ((System.ComponentModel.ISupportInitialize)(this.importDelayBox)).BeginInit();
@@ -430,27 +432,105 @@
             this.frameNameBox.Name = "frameNameBox";
             this.frameNameBox.Size = new System.Drawing.Size(83, 20);
             this.frameNameBox.TabIndex = 25;
+            this.frameNameBox.TextChanged += new System.EventHandler(this.frameNameBox_TextChanged);
             // 
             // frameSpritePanel
             // 
             this.frameSpritePanel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.frameSpritePanel.Controls.Add(this.spritePosPanel);
             this.frameSpritePanel.Controls.Add(this.removeSpriteButton);
             this.frameSpritePanel.Controls.Add(this.moveSpriteUpButton);
             this.frameSpritePanel.Controls.Add(this.moveSpriteDownButton);
-            this.frameSpritePanel.Controls.Add(this.frameSpritePositionLabel);
             this.frameSpritePanel.Controls.Add(this.frameSpriteListBox);
-            this.frameSpritePanel.Controls.Add(this.spriteYPosLabel);
-            this.frameSpritePanel.Controls.Add(this.spriteXPosLabel);
             this.frameSpritePanel.Controls.Add(this.frameSpriteListLabel);
             this.frameSpritePanel.Controls.Add(this.replaceSpriteButton);
             this.frameSpritePanel.Controls.Add(this.addSpriteToFrameSpritesButton);
-            this.frameSpritePanel.Controls.Add(this.spriteYPosBox);
-            this.frameSpritePanel.Controls.Add(this.spriteXPosBox);
             this.frameSpritePanel.Location = new System.Drawing.Point(129, 277);
             this.frameSpritePanel.Name = "frameSpritePanel";
             this.frameSpritePanel.Size = new System.Drawing.Size(161, 126);
             this.frameSpritePanel.TabIndex = 24;
             // 
+            // spritePosPanel
+            // 
+            this.spritePosPanel.Controls.Add(this.frameSpritePositionLabel);
+            this.spritePosPanel.Controls.Add(this.spriteYPosLabel);
+            this.spritePosPanel.Controls.Add(this.spriteXPosLabel);
+            this.spritePosPanel.Controls.Add(this.spriteYPosBox);
+            this.spritePosPanel.Controls.Add(this.spriteXPosBox);
+            this.spritePosPanel.Location = new System.Drawing.Point(32, 81);
+            this.spritePosPanel.Name = "spritePosPanel";
+            this.spritePosPanel.Size = new System.Drawing.Size(128, 44);
+            this.spritePosPanel.TabIndex = 27;
+            // 
+            // frameSpritePositionLabel
+            // 
+            this.frameSpritePositionLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.frameSpritePositionLabel.AutoSize = true;
+            this.frameSpritePositionLabel.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
+            this.frameSpritePositionLabel.Location = new System.Drawing.Point(1, 1);
+            this.frameSpritePositionLabel.Name = "frameSpritePositionLabel";
+            this.frameSpritePositionLabel.Size = new System.Drawing.Size(86, 13);
+            this.frameSpritePositionLabel.TabIndex = 23;
+            this.frameSpritePositionLabel.Text = "Sprite Positon";
+            // 
+            // spriteYPosLabel
+            // 
+            this.spriteYPosLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.spriteYPosLabel.AutoSize = true;
+            this.spriteYPosLabel.Location = new System.Drawing.Point(62, 21);
+            this.spriteYPosLabel.Name = "spriteYPosLabel";
+            this.spriteYPosLabel.Size = new System.Drawing.Size(14, 13);
+            this.spriteYPosLabel.TabIndex = 18;
+            this.spriteYPosLabel.Text = "Y";
+            // 
+            // spriteXPosLabel
+            // 
+            this.spriteXPosLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.spriteXPosLabel.AutoSize = true;
+            this.spriteXPosLabel.Location = new System.Drawing.Point(1, 21);
+            this.spriteXPosLabel.Name = "spriteXPosLabel";
+            this.spriteXPosLabel.Size = new System.Drawing.Size(14, 13);
+            this.spriteXPosLabel.TabIndex = 18;
+            this.spriteXPosLabel.Text = "X";
+            // 
+            // spriteYPosBox
+            // 
+            this.spriteYPosBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.spriteYPosBox.Location = new System.Drawing.Point(77, 19);
+            this.spriteYPosBox.Maximum = new decimal(new int[] {
+            2147483647,
+            0,
+            0,
+            0});
+            this.spriteYPosBox.Minimum = new decimal(new int[] {
+            2147483647,
+            0,
+            0,
+            -2147483648});
+            this.spriteYPosBox.Name = "spriteYPosBox";
+            this.spriteYPosBox.Size = new System.Drawing.Size(43, 20);
+            this.spriteYPosBox.TabIndex = 8;
+            this.spriteYPosBox.ValueChanged += new System.EventHandler(this.spriteYPosBox_ValueChanged);
+            // 
+            // spriteXPosBox
+            // 
+            this.spriteXPosBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.spriteXPosBox.Location = new System.Drawing.Point(16, 19);
+            this.spriteXPosBox.Maximum = new decimal(new int[] {
+            2147483647,
+            0,
+            0,
+            0});
+            this.spriteXPosBox.Minimum = new decimal(new int[] {
+            2147483647,
+            0,
+            0,
+            -2147483648});
+            this.spriteXPosBox.Name = "spriteXPosBox";
+            this.spriteXPosBox.Size = new System.Drawing.Size(43, 20);
+            this.spriteXPosBox.TabIndex = 8;
+            this.spriteXPosBox.ValueChanged += new System.EventHandler(this.spriteXPosBox_ValueChanged);
+            // 
             // removeSpriteButton
             // 
             this.removeSpriteButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
@@ -487,47 +567,17 @@
             this.moveSpriteDownButton.UseVisualStyleBackColor = true;
             this.moveSpriteDownButton.Click += new System.EventHandler(this.moveSpriteDownButton_Click);
             // 
-            // frameSpritePositionLabel
-            // 
-            this.frameSpritePositionLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
-            this.frameSpritePositionLabel.AutoSize = true;
-            this.frameSpritePositionLabel.Font = new System.Drawing.Font("Microsoft Sans Serif", 8.25F, System.Drawing.FontStyle.Bold, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
-            this.frameSpritePositionLabel.Location = new System.Drawing.Point(33, 82);
-            this.frameSpritePositionLabel.Name = "frameSpritePositionLabel";
-            this.frameSpritePositionLabel.Size = new System.Drawing.Size(86, 13);
-            this.frameSpritePositionLabel.TabIndex = 23;
-            this.frameSpritePositionLabel.Text = "Sprite Positon";
-            // 
             // frameSpriteListBox
             // 
             this.frameSpriteListBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
             this.frameSpriteListBox.FormattingEnabled = true;
             this.frameSpriteListBox.Location = new System.Drawing.Point(34, 23);
             this.frameSpriteListBox.Name = "frameSpriteListBox";
+            this.frameSpriteListBox.SelectionMode = System.Windows.Forms.SelectionMode.MultiExtended;
             this.frameSpriteListBox.Size = new System.Drawing.Size(120, 56);
             this.frameSpriteListBox.TabIndex = 22;
             this.frameSpriteListBox.SelectedIndexChanged += new System.EventHandler(this.frameSpriteListBox_SelectedIndexChanged);
             // 
-            // spriteYPosLabel
-            // 
-            this.spriteYPosLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
-            this.spriteYPosLabel.AutoSize = true;
-            this.spriteYPosLabel.Location = new System.Drawing.Point(94, 102);
-            this.spriteYPosLabel.Name = "spriteYPosLabel";
-            this.spriteYPosLabel.Size = new System.Drawing.Size(14, 13);
-            this.spriteYPosLabel.TabIndex = 18;
-            this.spriteYPosLabel.Text = "Y";
-            // 
-            // spriteXPosLabel
-            // 
-            this.spriteXPosLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
-            this.spriteXPosLabel.AutoSize = true;
-            this.spriteXPosLabel.Location = new System.Drawing.Point(33, 102);
-            this.spriteXPosLabel.Name = "spriteXPosLabel";
-            this.spriteXPosLabel.Size = new System.Drawing.Size(14, 13);
-            this.spriteXPosLabel.TabIndex = 18;
-            this.spriteXPosLabel.Text = "X";
-            // 
             // frameSpriteListLabel
             // 
             this.frameSpriteListLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
@@ -539,6 +589,18 @@
             this.frameSpriteListLabel.TabIndex = 16;
             this.frameSpriteListLabel.Text = "Sprites";
             // 
+            // replaceSpriteButton
+            // 
+            this.replaceSpriteButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.replaceSpriteButton.Location = new System.Drawing.Point(1, 56);
+            this.replaceSpriteButton.Name = "replaceSpriteButton";
+            this.replaceSpriteButton.Size = new System.Drawing.Size(27, 23);
+            this.replaceSpriteButton.TabIndex = 5;
+            this.replaceSpriteButton.Text = "@";
+            this.replaceSpriteButton.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
+            this.replaceSpriteButton.UseVisualStyleBackColor = true;
+            this.replaceSpriteButton.Click += new System.EventHandler(this.replaceSpriteButton_Click);
+            // 
             // addSpriteToFrameSpritesButton
             // 
             this.addSpriteToFrameSpritesButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
@@ -550,44 +612,6 @@
             this.addSpriteToFrameSpritesButton.UseVisualStyleBackColor = true;
             this.addSpriteToFrameSpritesButton.Click += new System.EventHandler(this.addSpriteToFrameSpritesButton_Click);
             // 
-            // spriteYPosBox
-            // 
-            this.spriteYPosBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
-            this.spriteYPosBox.Location = new System.Drawing.Point(109, 100);
-            this.spriteYPosBox.Maximum = new decimal(new int[] {
-            2147483647,
-            0,
-            0,
-            0});
-            this.spriteYPosBox.Minimum = new decimal(new int[] {
-            2147483647,
-            0,
-            0,
-            -2147483648});
-            this.spriteYPosBox.Name = "spriteYPosBox";
-            this.spriteYPosBox.Size = new System.Drawing.Size(43, 20);
-            this.spriteYPosBox.TabIndex = 8;
-            this.spriteYPosBox.ValueChanged += new System.EventHandler(this.spriteYPosBox_ValueChanged);
-            // 
-            // spriteXPosBox
-            // 
-            this.spriteXPosBox.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
-            this.spriteXPosBox.Location = new System.Drawing.Point(48, 100);
-            this.spriteXPosBox.Maximum = new decimal(new int[] {
-            2147483647,
-            0,
-            0,
-            0});
-            this.spriteXPosBox.Minimum = new decimal(new int[] {
-            2147483647,
-            0,
-            0,
-            -2147483648});
-            this.spriteXPosBox.Name = "spriteXPosBox";
-            this.spriteXPosBox.Size = new System.Drawing.Size(43, 20);
-            this.spriteXPosBox.TabIndex = 8;
-            this.spriteXPosBox.ValueChanged += new System.EventHandler(this.spriteXPosBox_ValueChanged);
-            // 
             // importDelayLabel
             // 
             this.importDelayLabel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
@@ -669,6 +693,16 @@
             this.spriteBoxLabel.TabIndex = 15;
             this.spriteBoxLabel.Text = "Sprite Selection";
             // 
+            // duplicateFrameButton
+            // 
+            this.duplicateFrameButton.Location = new System.Drawing.Point(130, 18);
+            this.duplicateFrameButton.Name = "duplicateFrameButton";
+            this.duplicateFrameButton.Size = new System.Drawing.Size(27, 23);
+            this.duplicateFrameButton.TabIndex = 12;
+            this.duplicateFrameButton.Text = "++";
+            this.duplicateFrameButton.UseVisualStyleBackColor = true;
+            this.duplicateFrameButton.Click += new System.EventHandler(this.duplicateFrameButton_Click);
+            // 
             // addEmptyFrameButton
             // 
             this.addEmptyFrameButton.Location = new System.Drawing.Point(162, 18);
@@ -719,29 +753,13 @@
             this.animationLabel.TabIndex = 22;
             this.animationLabel.Text = "Animation";
             // 
-            // loadAnimationSetDialog
-            // 
-            this.loadAnimationSetDialog.DefaultExt = "animset";
-            this.loadAnimationSetDialog.FileName = "openFileDialog1";
-            this.loadAnimationSetDialog.Filter = "QUROGames AnimationSet|*.animSet";
-            // 
-            // duplicateFrameButton
-            // 
-            this.duplicateFrameButton.Location = new System.Drawing.Point(130, 18);
-            this.duplicateFrameButton.Name = "duplicateFrameButton";
-            this.duplicateFrameButton.Size = new System.Drawing.Size(27, 23);
-            this.duplicateFrameButton.TabIndex = 12;
-            this.duplicateFrameButton.Text = "++";
-            this.duplicateFrameButton.UseVisualStyleBackColor = true;
-            this.duplicateFrameButton.Click += new System.EventHandler(this.duplicateFrameButton_Click);
-            // 
             // animationPreview
             // 
             this.animationPreview.Anchor = ((System.Windows.Forms.AnchorStyles)((((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Bottom) 
             | System.Windows.Forms.AnchorStyles.Left) 
             | System.Windows.Forms.AnchorStyles.Right)));
             this.animationPreview.BackColor = System.Drawing.SystemColors.ControlDarkDark;
-            this.animationPreview.EditSprite = null;
+            this.animationPreview.EditSprites = null;
             this.animationPreview.GridSpacing = 0;
             this.animationPreview.Location = new System.Drawing.Point(3, 26);
             this.animationPreview.Name = "animationPreview";
@@ -755,17 +773,11 @@
             this.animationPreview.ZoomLevel = 0F;
             this.animationPreview.MouseWheel += new System.Windows.Forms.MouseEventHandler(this.animationPreview_MouseWheel);
             // 
-            // replaceSpriteButton
+            // loadAnimationSetDialog
             // 
-            this.replaceSpriteButton.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Left)));
+            this.loadAnimationSetDialog.DefaultExt = "animset";
-            this.replaceSpriteButton.Location = new System.Drawing.Point(1, 56);
+            this.loadAnimationSetDialog.FileName = "openFileDialog1";
-            this.replaceSpriteButton.Name = "replaceSpriteButton";
+            this.loadAnimationSetDialog.Filter = "QUROGames AnimationSet|*.animSet";
-            this.replaceSpriteButton.Size = new System.Drawing.Size(27, 23);
-            this.replaceSpriteButton.TabIndex = 5;
-            this.replaceSpriteButton.Text = "@";
-            this.replaceSpriteButton.TextAlign = System.Drawing.ContentAlignment.MiddleLeft;
-            this.replaceSpriteButton.UseVisualStyleBackColor = true;
-            this.replaceSpriteButton.Click += new System.EventHandler(this.replaceSpriteButton_Click);
             // 
             // Form1
             // 
@@ -788,6 +800,8 @@
             this.frameEditorPanel.PerformLayout();
             this.frameSpritePanel.ResumeLayout(false);
             this.frameSpritePanel.PerformLayout();
+            this.spritePosPanel.ResumeLayout(false);
+            this.spritePosPanel.PerformLayout();
             ((System.ComponentModel.ISupportInitialize)(this.spriteYPosBox)).EndInit();
             ((System.ComponentModel.ISupportInitialize)(this.spriteXPosBox)).EndInit();
             ((System.ComponentModel.ISupportInitialize)(this.importDelayBox)).EndInit();
@@ -862,6 +876,7 @@
         private System.Windows.Forms.Button moveSpriteDownButton;
         private System.Windows.Forms.Button duplicateFrameButton;
         private System.Windows.Forms.Button replaceSpriteButton;
+        private System.Windows.Forms.Panel spritePosPanel;
     }
 }
 

AnimationEditor/Form1.cs

@@ -41,6 +41,7 @@ namespace AnimationEditor
         private Animation currentAnimation;
         private Frame currentFrame;
 
+        private bool tracking;
         private bool reading;
         private float importDelay = 0;
 
@@ -157,6 +158,39 @@ namespace AnimationEditor
             }
         }
 
+        private void UpdateEnabledControls()
+        {
+            bool singleFrameSelected = frameListBox.SelectedIndices.Count < 2;
+            bool singleSpriteSelected = frameSpriteListBox.SelectedIndices.Count < 2;
+
+            //update per-frame controls
+            frameSpritePanel.Enabled = singleFrameSelected;
+            moveFrameDownButton.Enabled = singleFrameSelected;
+            moveFrameUpButton.Enabled = singleFrameSelected;
+            removeFrameButton.Enabled = singleFrameSelected;
+            duplicateFrameButton.Enabled = singleFrameSelected;
+
+            //update per-sprite controls
+            spritePosPanel.Enabled = singleSpriteSelected;
+            replaceSpriteButton.Enabled = singleSpriteSelected;
+            moveSpriteDownButton.Enabled = singleSpriteSelected;
+            moveSpriteUpButton.Enabled = singleSpriteSelected;
+            removeSpriteButton.Enabled = singleSpriteSelected;
+
+            reading = true;
+            if (!singleSpriteSelected)
+            {
+                spriteXPosBox.Text = "";
+                spriteYPosBox.Text = "";
+            }
+            else
+            {
+                spriteXPosBox.Text = spriteXPosBox.Value.ToString();
+                spriteYPosBox.Text = spriteYPosBox.Value.ToString();
+            }
+            reading = false;
+        }
+
         private void ReadAnimationInfo()
         {
             reading = true;
@@ -184,26 +218,61 @@ namespace AnimationEditor
 
         private void frameListBox_SelectedIndexChanged(object sender, EventArgs e)
         {
+            if(!tracking)
+                UpdateEnabledControls();
             if (frameListBox.SelectedIndices.Count == 1 && frameListBox.SelectedItem != null)
             {
+                //create copy of current frameSprite selection
+                List<int> oldFrameSpriteSelection = new List<int>();
+                foreach (int index in frameSpriteListBox.SelectedIndices)
+                {
+                    oldFrameSpriteSelection.Add(index);
+                }
+
+                //update currentFrame to match selection
                 currentFrame = (Frame)frameListBox.SelectedItem;
+                //update preview and frameTrackBar frame positions
                 if (animationPreview.PreviewSprite != null && !animationPreview.Playing)
                 {
                     animationPreview.PreviewSprite.CurrentFrameIndex = frameListBox.SelectedIndex;
                     frameTrackBar.Value = frameListBox.SelectedIndex;
                 }
-                frameSpritePanel.Enabled = true;
+
+                //update frameSpriteListBox with the current frame's sprites
                 if (currentFrame.Sprites != null)
                     frameSprites = new BindingList<Sprite>(currentFrame.Sprites);
                 else
                     frameSprites = new BindingList<Sprite>();
                 frameSpriteListBox.DataSource = frameSprites;
                 frameSpriteListBox.DisplayMember = "Name";
+
+                //restore old frameSprite selection
+                frameSpriteListBox.SelectedIndices.Clear();
+                foreach(int index in oldFrameSpriteSelection)
+                {
+                    if(index < frameSprites.Count)
+                    {
+                        frameSpriteListBox.SelectedIndex = index;
+                    }
+                }
+
+                //update forms fields to match selected frame's informations
                 UpdateFrameInformation();
             }
             else if (frameListBox.SelectedIndices.Count > 1)
             {
+                //disable frameSpritePanel, as multi frame sprite editing is not yet possible
                 frameSpritePanel.Enabled = false;
+
+                //disable single frame controls
+                moveFrameDownButton.Enabled = false;
+                moveFrameUpButton.Enabled = false;
+                removeFrameButton.Enabled = false;
+                duplicateFrameButton.Enabled = false;
+
+                //disable preview sprite drag+drop functionality
+                if (animationPreview.EditSprites != null)
+                    animationPreview.EditSprites.Clear();
             }
         }
 
@@ -224,7 +293,6 @@ namespace AnimationEditor
             }
         }
 
-
         private void loadSpriteSheetToolStripMenuItem_Click(object sender, EventArgs e)
         {
             if (loadSpriteSheetDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
@@ -315,8 +383,10 @@ namespace AnimationEditor
         {
             if (!animationPreview.Playing)
             {
+                tracking = true;
                 animationPreview.PreviewSprite.CurrentFrameIndex = frameTrackBar.Value;
                 frameListBox_SetSingleSelection(frameTrackBar.Value);
+                tracking = false;
             }
         }
 
@@ -542,10 +612,25 @@ namespace AnimationEditor
 
         private void frameSpriteListBox_SelectedIndexChanged(object sender, EventArgs e)
         {
+            if(!tracking)
+                UpdateEnabledControls();
             if (frameSpriteListBox.SelectedIndex > -1 && frameSpriteListBox.SelectedIndex < frameSprites.Count)
             {
-                animationPreview.EditSprite = frameSprites[frameSpriteListBox.SelectedIndex];
+                //check if animationPreview has initialized EditSprites; do so if not, and if so, clear it
-                ReadSpriteOffset();
+                if (animationPreview.EditSprites == null)
+                    animationPreview.EditSprites = new List<Sprite>();
+                else
+                    animationPreview.EditSprites.Clear();
+                //add selected sprites to EditSprites list
+                foreach(int index in frameSpriteListBox.SelectedIndices)
+                {
+                    if(index < frameSprites.Count)
+                        animationPreview.EditSprites.Add(frameSprites[index]);
+                }
+                if (frameSpriteListBox.SelectedIndices.Count == 1)
+                {
+                    ReadSpriteOffset();
+                }
             }
         }
 
@@ -598,7 +683,36 @@ namespace AnimationEditor
         {
             if (reading)
                 return;
-            currentFrame.Name = frameNameBox.Text;
+
+            bool changed = false;
+
+            foreach(int index in frameListBox.SelectedIndices)
+            {
+                if (frames[index].Name != frameNameBox.Text)
+                {
+                    frames[index].Name = frameNameBox.Text;
+                    changed = true;
+                }
+            }
+
+            if (changed)
+            {
+                //store current frame selection data
+                List<int> selection = new List<int>();
+                foreach (int index in frameListBox.SelectedIndices)
+                {
+                    selection.Add(index);
+                }
+                //refresh list so name changes are reflected in form
+                frames.ResetBindings();
+                //restore selection
+                reading = true;
+                foreach(int index in selection)
+                {
+                    frameListBox.SelectedIndex = index;
+                }
+                reading = false;
+            }
         }
 
         private void moveSpriteDownButton_Click(object sender, EventArgs e)
@@ -642,7 +756,8 @@ namespace AnimationEditor
 
         private void animationPreview_SpriteMoved(object sender, EventArgs e)
         {
-            ReadSpriteOffset();
+            if(frameSpriteListBox.SelectedIndices.Count == 1)
+                ReadSpriteOffset();
         }
 
         private void duplicateFrameButton_Click(object sender, EventArgs e)