More scrolling and dialog alignment fixes.

src/main/java/noppes/npcs/client/gui/player/GuiDialogInteract.java

@@ -37,36 +37,35 @@ public class GuiDialogInteract extends GuiNPCInterface implements IGuiClose
     private int selected = 0;
     private List<TextBlockClient> lineBlocks = new ArrayList<TextBlockClient>();
     private List<Integer> options = new ArrayList<Integer>();
-    private int rowStart = 0;
-    private int rowTotal = 0;
+    private int totalRows = 0;
 
 	private ScaledResolution scaledResolution;
 
-	private int renderDialogType = 1; //0 - Instant (classic), 1 - Gradual
 	private String gradualText = "";
 	private int currentBlock = 0;
 	private int currentLine = 0;
 	private int gradualTextTime = 0;
 	private static int gradualTextSpeed = 10;
-
-	private boolean showPreviousBlocks = true;
-
-	private int dialogWidth = 500;
-	private int dialogHeight = 200;
 	private int dialogTextBottom = 0;
 
-	private int textOffsetX, textOffsetY;
-	private int titleOffsetX, titleOffsetY;
-
-	private int optionSpaceX, optionSpaceY;
-	private int optionOffsetX, optionOffsetY;
-
 	private int scrollY;
 	private ResourceLocation wheel;
 	private ResourceLocation[] wheelparts;
 	private ResourceLocation indicator;
 	
 	private boolean isGrabbed = false;
+
+	private int renderDialogType = 0; //0 - Instant (classic), 1 - Gradual
+	private boolean showPreviousBlocks = true;
+
+	private int dialogWidth = 500;
+	private int dialogHeight = 200;
+
+	private int textOffsetX, textOffsetY;
+	private int titleOffsetX, titleOffsetY;
+
+	private int optionSpaceX, optionSpaceY;
+	private int optionOffsetX, optionOffsetY;
 	
     public GuiDialogInteract(EntityNPCInterface npc, Dialog dialog){
     	super(npc);
@@ -248,7 +247,7 @@ public class GuiDialogInteract extends GuiNPCInterface implements IGuiClose
     private int selectedY = 0;
     private void drawWheel(){
     	int yoffset = scaledResolution.getScaledHeight() - 50 + optionOffsetY;
-		dialogTextBottom = yoffset - 100;
+		//dialogTextBottom = yoffset - 100;
         GL11.glColor4f(1, 1, 1, 1);
         mc.renderEngine.bindTexture(wheel);
         drawTexturedModalRect((width/2) - 31 + optionOffsetX, yoffset, 0, 0, 63, 40);
@@ -303,7 +302,7 @@ public class GuiDialogInteract extends GuiNPCInterface implements IGuiClose
     }
     private void drawLinedOptions(int j){
         int offset = scaledResolution.getScaledHeight() - (options.size() + 2) * ClientProxy.Font.height() + optionOffsetY - options.size() * optionSpaceY;
-		dialogTextBottom = offset - 100;
+		//dialogTextBottom = offset - 100;
         if(j >= offset){
         	int selected = options.size() - (j - offset + optionSpaceY) / (ClientProxy.Font.height() + optionSpaceY);
 	        if(selected < options.size())
@@ -328,9 +327,10 @@ public class GuiDialogInteract extends GuiNPCInterface implements IGuiClose
     }
 
 	private void drawDialogString(String text, int left, int color, int count, boolean mainDialogText){
-		int height = count - rowStart;
-		int y = (height * ClientProxy.Font.height()) + dialogTextBottom + scrollY;
-		if (y < dialogTextBottom - dialogHeight || y > dialogTextBottom + ClientProxy.Font.height() * 8) {
+		int height = count - totalRows;
+		int midScreen = scaledResolution.getScaledHeight() / 2;
+		int y = (height * ClientProxy.Font.height()) + midScreen + scrollY;
+		if (y < midScreen - dialogHeight || y > midScreen - ClientProxy.Font.height()) {
 			return;
 		}
 
@@ -377,7 +377,7 @@ public class GuiDialogInteract extends GuiNPCInterface implements IGuiClose
 			gradualTextSpeed++;
 		}
 
-		if (i == mc.gameSettings.keyBindBack.getKeyCode() || i == 201 && scrollY < rowStart * ClientProxy.Font.height()) {//Page up
+		if (i == mc.gameSettings.keyBindBack.getKeyCode() || i == 201 && scrollY < (totalRows - 2) * ClientProxy.Font.height()) {//Page up
 			scrollY += ClientProxy.Font.height() * 2;
 		}
 		if (i == mc.gameSettings.keyBindBack.getKeyCode() || i == 209 && scrollY > 0) {//Page down
@@ -462,25 +462,21 @@ public class GuiDialogInteract extends GuiNPCInterface implements IGuiClose
 		currentLine = 0;
 		gradualTextTime = 0;
 
-		 for(int slot:dialog.options.keySet()){
+		for(int slot:dialog.options.keySet()){
 			DialogOption option = dialog.options.get(slot);
 			if(option == null || option.optionType == EnumOptionType.Disabled)
 				continue;
 			options.add(slot);
-		 }
-		 calculateRowHeight();
+		}
+		calculateRowHeight();
 		 
-		 grabMouse(dialog.showWheel);
+		grabMouse(dialog.showWheel);
 	}
 	private void calculateRowHeight(){
-        rowTotal = 0;
+		totalRows = 0;
         for(TextBlockClient block : lineBlocks){
-        	rowTotal += block.lines.size() + 1;
+			totalRows += block.lines.size() + 1;
         }
-
-        rowStart = rowTotal;
-        if(rowStart < 0)
-        	rowStart = 0;
 	}
 
 	@Override