added vt string drawing

Test.java

@@ -41,6 +41,7 @@ public class Test {
 		term.setChar(new Vec2i(0, 0), 0xC9, Color.GREEN);
 		term.setChar(new Vec2i(9, 9), 0xC9, Color.GREEN);
 		term.setChar(new Vec2i(10, 10), 0xC9, Color.GREEN);
+		term.drawHalfString(new Vec2i(11, 11), "AHello world. This is a test.", Color.GREEN);
 
 		while(!window.shouldClose()) {
 			window.tick();

com/danitheskunk/skunkworks/gfx/BaseRenderContext.java

@@ -1,8 +1,8 @@
 package com.danitheskunk.skunkworks.gfx;
 
-import com.danitheskunk.skunkworks.gfx.font.IFont;
 import com.danitheskunk.skunkworks.Recti;
 import com.danitheskunk.skunkworks.Vec2i;
+import com.danitheskunk.skunkworks.gfx.font.IFont;
 import com.danitheskunk.skunkworks.gfx.vt.Terminal;
 
 import java.io.UnsupportedEncodingException;
@@ -60,8 +60,8 @@ abstract public class BaseRenderContext implements IRenderContext {
 
 				drawTexture(pixelPos, fullFont.getTexture(0xdb), bgColor);
 				if(isHalfWidth) {
-					drawTexture(pixelPos, fullFont.getTexture(terminal.getLeftHalfChar(charPos)), fgColor);
+					drawTexture(pixelPos, halfFont.getTexture(terminal.getLeftHalfChar(charPos)), fgColor);
-					drawTexture(Vec2i.add(pixelPos, halfCharSize), fullFont.getTexture(terminal.getRightHalfChar(charPos)), fgColor);
+					drawTexture(new Vec2i(pixelPos.getX() + halfCharSize.getX(), pixelPos.getY()), halfFont.getTexture(terminal.getRightHalfChar(charPos)), fgColor);
 				} else {
 					drawTexture(pixelPos, fullFont.getTexture(terminal.getChar(charPos)), fgColor);
 				}

com/danitheskunk/skunkworks/gfx/vt/Terminal.java

@@ -4,6 +4,9 @@ import com.danitheskunk.skunkworks.Vec2i;
 import com.danitheskunk.skunkworks.gfx.Color;
 import com.danitheskunk.skunkworks.gfx.font.IFont;
 
+import java.io.UnsupportedEncodingException;
+import java.nio.ByteBuffer;
+import java.nio.IntBuffer;
 import java.util.ArrayList;
 import java.util.List;
 
@@ -150,6 +153,74 @@ public class Terminal {
 		return Vec2i.mul(size, fullCharSize);
 	}
 
+	public void drawString(Vec2i pos, String str) {
+		drawString(pos, str, null);
+	}
+
+	public void drawString(Vec2i pos, String str, Color foregroundColor) {
+		drawString(pos, str, foregroundColor, null);
+	}
+
+	public void drawString(Vec2i pos, String str, Color foregroundColor, Color backgroundColor) {
+		IntBuffer buf;
+
+		try {
+			buf = ByteBuffer.wrap(str.getBytes("UTF-32")).asIntBuffer();
+		} catch(UnsupportedEncodingException e) {
+			throw new RuntimeException(e);
+		}
+
+		for(int i = 0; i < str.length(); ++i) {
+			var ch = buf.get(i);
+			var cpos = new Vec2i(pos.getX() + i, pos.getY());
+			if(ch > 0 && ch < 256) {
+				setChar(cpos, ch);
+			}
+			if(foregroundColor != null) {
+				setForegroundColor(cpos, foregroundColor);
+			}
+			if(backgroundColor != null) {
+				setBackgroundColor(cpos, backgroundColor);
+			}
+		}
+	}
+
+	public void drawHalfString(Vec2i pos, String str) {
+		drawHalfString(pos, str, null);
+	}
+
+	public void drawHalfString(Vec2i pos, String str, Color foregroundColor) {
+		drawHalfString(pos, str, foregroundColor, null);
+	}
+
+	public void drawHalfString(Vec2i pos, String str, Color foregroundColor, Color backgroundColor) {
+		IntBuffer buf;
+
+		try {
+			buf = ByteBuffer.wrap(str.getBytes("UTF-32")).asIntBuffer();
+		} catch(UnsupportedEncodingException e) {
+			throw new RuntimeException(e);
+		}
+
+		for(int i = 0; i < str.length(); i += 2) {
+			var ch1 = buf.get(i);
+			var ch2 = i + 1 == str.length() ? 0 : buf.get(i + 1);
+			var cpos = new Vec2i(pos.getX() + i / 2, pos.getY());
+
+			if(ch1 < 0 || ch1 >= 256) ch1 = 0;
+			if(ch2 < 0 || ch2 >= 256) ch2 = 0;
+
+			setHalfChars(cpos, ch1, ch2);
+
+			if(foregroundColor != null) {
+				setForegroundColor(cpos, foregroundColor);
+			}
+			if(backgroundColor != null) {
+				setBackgroundColor(cpos, backgroundColor);
+			}
+		}
+	}
+
 	private class Cell {
 		int fullChar;
 		int secondChar;