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src/ecs/UIFontComponent.h

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+/*
+ * UIFontComponent.h
+ *
+ *  Created on: May 14, 2020
+ *      Author: ayoungblood
+ */
+
+#ifndef SRC_ECS_UIFONTCOMPONENT_H_
+#define SRC_ECS_UIFONTCOMPONENT_H_
+
+#define ASCII_START_IDX 32
+#define ASCII_COUNT 96
+#define ASCII_ROW_COUNT 16
+
+#include "Components.h"
+#include "SDL2/SDL.h"
+#include "../assetmgr/AssetManager.h"
+
+class UIFontComponent : public Component
+{
+private:
+//	SDL_Texture * texture;
+
+//	Font dimensions
+	int _LetterWidth;
+	int _LetterHeight;
+
+//	Track current letter on texture
+	SDL_Rect _LetterClips[ASCII_COUNT];
+
+public:
+
+//	SDL_RendererFlip spriteFlip = SDL_FLIP_NONE;
+	SDL_Texture* texture;
+	SDL_Rect srcRect, destRect;
+	Vector2D position;
+
+//	UIFontComponent() = default;
+
+	UIFontComponent(std::string id, int letterW, int letterH, int xpos, int ypos, int scale)
+	{
+		texture = Game::assets->GetTexture(id);
+		srcRect = UIFontComponent::SetCharClips(texture, xpos, ypos);
+
+		position.x = xpos;
+		position.y = ypos;
+
+		destRect.x = xpos;
+		destRect.y = ypos;
+		destRect.w = letterW * scale;
+		destRect.h = letterH * scale;
+	}
+
+	~UIFontComponent()
+	{
+		SDL_DestroyTexture(texture);
+	}
+
+	void update() override
+	{
+
+	}
+
+	void draw() override
+	{
+		TextureManager::Draw(texture, srcRect, destRect, SDL_FLIP_NONE);
+	}
+
+	SDL_Rect SetCharClips(SDL_Texture* fontTex, int x, int y)
+	{
+		SDL_Rect letterClip;
+		for (int i = 0; i < ASCII_COUNT; ++i)
+		{
+			_LetterClips[i].x = x + ((i % ASCII_ROW_COUNT) * _LetterWidth);
+			_LetterClips[i].y = y + ((i / ASCII_ROW_COUNT) * _LetterHeight);
+			_LetterClips[i].w = _LetterWidth;
+			_LetterClips[i].h = _LetterHeight;
+			letterClip = _LetterClips[i];
+		}
+		return letterClip;
+	}
+};
+#endif /* SRC_ECS_UIFONTCOMPONENT_H_ */