Reduce skill issue in text drawing

TODO.md

@@ -8,14 +8,14 @@
 - [ ] Base Node class
 - [ ] Base UI Node class
 - [ ] Base Audio Playback Node class
-- [ ] Split other sections (renderers, physics)
+- [ ] Split other sections into seperate libraries (renderers, physics)
 ## Audio
 - [ ] OGG and WAV support (do first)
 - [ ] MP3 (later)
 - [ ] Audio playing nodes
 ## Hibis UI (NEED A NAME)
 - [ ] GUI creation
-- [ ] Text Object (rendering via FreeType2)
+- [ ] Text Object (rendering via SDL2_TTF (RSDL) or FreeType2 (EVERYTHING ELSE))
 ## RSDL (2D ONLY)
 - [X] Window creation
 - [X] Renderer creation
@@ -35,4 +35,4 @@
 ## Hibis Physics (NEED A NAME)
 - [ ] Physics Shape creation
 - [ ] Collision via raycasting
-- [ ] Option to *allow* for Physics Shapes to be able to be drawn (on by default, both compile time and run time, turn off at compile time via version(`-version=NoPhysShapeDraw`?))
+- [ ] Option to *allow* for Physics Shapes to be able to be drawn (on by default, both compile time and run time, turn off at compile time via version(`-version=NoPhysShapeDraw`?))

core/source/renderer/renderer.d

@@ -8,7 +8,7 @@ abstract class Renderer {
 	void clearScreen(Color col);
 	void renderCurrent();
 
-	void drawText(Resource resource, string text, IntRect rect, Color color);
+	void drawText(Resource resource, string text, IntVec2 pos, Color color);
 
 	// Pre and Post draw
 	void preDraw();

renderer/rsdl/source/hibis_rsdl.d

@@ -14,6 +14,7 @@ import std.format;
 
 import std.stdio;
 import std.string : toStringz;
+import std.array : split;
 
 /** \class RSDL
 * Renderer implementation using SDL2 Renderer for the Hibis game engine
@@ -79,16 +80,21 @@ class RSDL : Renderer {
 		SDL_RenderPresent(renderer);
 	}
 
-	override void drawText(Resource resource, string text, IntRect rect, Color color) {
+	override void drawText(Resource resource, string text, IntVec2 pos, Color color) {
 		if (Font font = cast(Font)resource) {
 			SDL_Surface* textSurface = TTF_RenderText_Solid(font.loadedFont, cast(const(char)*)toStringz(text), SDL_Color(color.r, color.g, color.b, color.a));
 			SDL_Texture* textTexture = SDL_CreateTextureFromSurface(renderer, textSurface);
 
+			int width = 0;
+			int height = 0;
+
+			TTF_SizeText(font.loadedFont, cast(const(char)*)toStringz(text), &width, &height);
+
 			SDL_Rect textRect;
-			textRect.x = rect.x;
-			textRect.y = rect.y;
-			textRect.w = rect.w;
-			textRect.h = rect.h;
+			textRect.x = pos.x;
+			textRect.y = pos.y;
+			textRect.w = width;
+			textRect.h = height;
 
 			SDL_RenderCopy(renderer, textTexture, null, &textRect);
 

renderer/rsdl/source/resources/font.d

@@ -9,14 +9,43 @@ import std.format : format;
 
 class Font : Resource {
 	this(string path, uint size) {
-		const char* nPath = cast(const(char)*)toStringz(path);
-		loadedFont = TTF_OpenFont(nPath, size);
-		writeln(format("Loaded font at '%s'", path));
+		this.size = size;
+		this.path = path;
+		loadFont();
 	}
 
 	~this() {
 		TTF_CloseFont(loadedFont);
 	}
 
-	public TTF_Font* loadedFont;
+	uint getFontSize() { return size; }
+
+	void setFontSize(uint newSize) {
+		size = newSize;
+		loadFont(true);
+	}
+
+	private void loadFont(bool reload = false) {
+		const char* nPath = cast(const(char)*)toStringz(path);
+
+		// If already loaded, close font
+		if (!(loadedFont is null)) {
+			TTF_CloseFont(loadedFont);
+			loadedFont = null;
+		}
+
+		loadedFont = TTF_OpenFont(nPath, size);
+
+		// Do the message
+		if (!didReload) {
+			writeln(format(reload ? "Reloaded font from '%s'" : "Loaded font at '%s'", path));
+			didReload = reload;
+		}
+	}
+
+	public TTF_Font* loadedFont = null;
+	private uint size;
+	private string path;
+
+	private bool didReload = false;
 }

test/source/app.d

@@ -25,22 +25,36 @@ void main() {
 		Font font = new Font("/usr/share/fonts/noto/NotoSans-Light.ttf", 16);
 	}
 	ubyte red = 0;
-	bool increase = true;
+	bool increaseRed = true;
+	bool increaseSize = true;
+	uint size = 16;
+	uint f = 0;
 
 	logger(LoggingSeverity.Information, "Started Hibis test app! BEHOLD: Colours.");
 	while (renderer.keepOpen) {
 		engine.runNodeProcesses();
 
 		// Colour changing background!
-		if ((red == 255 && increase) || (red == 0 && !increase)) {
-			increase = !increase;
+		if ((red == 255 && increaseRed) || (red == 0 && !increaseRed)) {
+			increaseRed = !increaseRed;
 		}
-		if (increase) red += 1;
+		if (increaseRed) red += 1;
 		else red -= 1;
 
+		f++;
+		if (f == 16) {
+			f = 0;
+			if ((size == 64 && increaseSize) || (size == 16 && !increaseSize)) {
+				increaseSize = !increaseSize;
+			}
+			if (increaseSize) size += 2;
+			else size -= 2;
+			font.setFontSize(size);
+		}
+
 		// Clear screen then sleep for ~16ms
 		renderer.clearScreen(Color(red, 0, 0, 255));
-		renderer.drawText(font, "TEST", IntRect(0, 0, 64, 64), Color(255, 255, 255, 255));
+		renderer.drawText(font, "Testing Text", IntVec2(0, 0), Color(255, 255, 255, 255));
 
 		engine.drawNodes();
 		renderer.renderCurrent();