Set up the intro gamestate; Added opacity and scale controls to UI elements

NFPackCreator/AssetBuild/base/shaders/textFragment.shader

@@ -4,10 +4,11 @@ in vec2 texCoord;
 
 uniform sampler2D text;
 uniform vec3 textColor;
+uniform float opacity;
 
 out vec4 color;
 
 void main() {
 	vec4 temp = vec4(1.0, 1.0, 1.0, texture(text, texCoord).r);
-	color = vec4(textColor.xyz, 1.0) * temp;
+	color = vec4(textColor.xyz, opacity) * temp;
 }

NFPackCreator/AssetBuild/base/shaders/uiTextureFragment.shader

@@ -3,9 +3,12 @@
 in vec2 texCoord;
 
 uniform sampler2D tex;
+uniform float opacity;
 
 out vec4 color;
 
 void main() {
-	color = texture(tex, texCoord);
+	vec3 texColor = texture(tex, texCoord).rgb;
+
+	color = vec4(texColor.rgb, opacity);
 }

NothinFancy/src/Application.cpp

@@ -54,7 +54,7 @@ namespace nf {
 	void Application::addDefaultState(const std::string& stateName) {
 		if (!m_defaultStateAdded) {
 			if (m_states.find(stateName) != m_states.end()) {
-				m_DefaultState = m_states[stateName];
+				m_defaultState = stateName;
 				m_defaultStateAdded = true;
 			}
 			else
@@ -64,6 +64,10 @@ namespace nf {
 			Error("More than one default state defined!");
 	}
 
+	const std::string& Application::getDefaultState() {
+		return m_defaultState;
+	}
+
 	void Application::run() {
 		showWindow(true);
 		m_running = true;
@@ -146,7 +150,6 @@ namespace nf {
 		y = m_mouseDiffY;
 		m_mouseDiffX = 0;
 		m_mouseDiffY = 0;
-		//TODO: Replace with atomic?
 	}
 
 	void Application::registerWindowClass() {
@@ -283,6 +286,7 @@ namespace nf {
 
 	void Application::doStateChange() {
 		m_stateChange = false;
+		//TODO: Do fade in and out here
 		m_currentState->onExit();
 		m_currentState = m_states[m_nextState];
 		m_currentState->onEnter();

NothinFancy/src/Assets.cpp

@@ -116,7 +116,7 @@ namespace nf {
 					curr->numImages++;
 
 					if (curr->numImages == 6) {
-						m_assets[cmName] = curr;
+						m_assets[cmName + (std::string)".cm"] = curr;
 					}
 
 					cubemapCount++;
@@ -175,5 +175,7 @@ namespace nf {
 	AModel* BaseAssets::cylinder;
 	AModel* BaseAssets::torus;
 
+	ATexture* BaseAssets::logo;
+
 	AFont* BaseAssets::defaultFont;
 }

NothinFancy/src/IntroGamestate.cpp

@@ -2,6 +2,7 @@
 
 #include "Application.h"
 #include "Utility.h"
+#include "Input.h"
 
 namespace nf {
 	IntroGamestate::IntroGamestate(Application* app) :
@@ -12,18 +13,36 @@ namespace nf {
 
 	void IntroGamestate::onEnter() {
 		Log("Intro onEnter!");
-		m_counter = 0;
+		logoTex.create(BaseAssets::logo, Vec2(0.0, 0.0));
+		logoTex.centered(true, true);
+		text.create("(C) Grayson Riffe 2021", Vec2(0.01, 0.025), Vec3(0.8));
+		text.setScale(0.6);
 	}
 
-
 	void IntroGamestate::update(double deltaTime) {
-		if (m_counter >= 120) {
-			app->changeState("Main State");
+		if (m_counter >= 240) {
+			app->changeState(app->getDefaultState());
 		}
+
+		static double opacity = 0.0;
+		static double scale = 1.0;
+		logoTex.setOpacity(opacity);
+		logoTex.setScale(scale);
+		text.setOpacity(opacity);
+		if (m_counter >= 20) {
+			opacity += 0.02;
+			scale += 0.002;
+		}
+
 		m_counter++;
+
+		if (app->isInput(NFI_ESCAPE))
+			app->quit();
 	}
 
 	void IntroGamestate::render(Renderer& renderer) {
+		renderer.render(logoTex);
+		renderer.render(text);
 	}
 
 	void IntroGamestate::onExit() {

NothinFancy/src/Renderer/Drawable/Drawable.cpp

@@ -3,7 +3,10 @@
 #include "Utility.h"
 
 namespace nf {
-	Drawable::Drawable() {
+	Drawable::Drawable() :
+		m_vao(nullptr),
+		m_ib(nullptr)
+	{
 
 	}
 

NothinFancy/src/Renderer/Drawable/Text.cpp

@@ -8,28 +8,34 @@
 #include "Shader.h"
 
 namespace nf {
-	Text::Text() {
+	Text::Text() :
+		m_font(nullptr),
+		m_scale(1.0f),
+		m_opacity(1.0f)
+	{
 
 	}
 
-	void Text::create(const std::string& string, const Vec2& position, const Vec3& color, unsigned int size, Asset* font) {
+	void Text::create(const std::string& string, const Vec2& position, const Vec3& color, double opacity, double scale, Asset* font) {
 		m_constructed = true;
 		m_string = string;
 		m_position = position;
 		m_color = color;
-		FT_Library ft;
-		if (FT_Init_FreeType(&ft))
-			Error("Could not initialize FreeType!");
-		FT_Face face;
+		m_scale = (float)scale;
+		m_opacity = (float)opacity;
 		AFont& newFont = *(AFont*)font;
 		if (newFont.alreadyLoaded) {
 			m_font = newFont.loadedFont;
 		}
 		else {
 			m_font = new Font;
+			FT_Library ft;
+			if (FT_Init_FreeType(&ft))
+				Error("Could not initialize FreeType!");
+			FT_Face face;
 			if (FT_New_Memory_Face(ft, (const unsigned char*)newFont.data, newFont.size, 0, &face))
 				Error("Could not load font!");
-			FT_Set_Pixel_Sizes(face, 0, size);
+			FT_Set_Pixel_Sizes(face, 0, 160);
 			for (unsigned char c = 0; c < 128; c++) {
 				FT_Load_Char(face, c, FT_LOAD_RENDER);
 				unsigned int tex;
@@ -61,6 +67,18 @@ namespace nf {
 		m_string = string;
 	}
 
+	void Text::setColor(const Vec3& color) {
+		m_color = color;
+	}
+
+	void Text::setScale(double scale) {
+		m_scale = (float)scale;
+	}
+
+	void Text::setOpacity(double opacity) {
+		m_opacity = (float)opacity;
+	}
+
 	const char* Text::identity() {
 		return "text";
 	}
@@ -75,9 +93,9 @@ namespace nf {
 			float textHeight = 0.0f;
 			for (si = m_string.begin(); si != m_string.end(); si++) {
 				Character& c = m_font->m_characters[*si];
-				textWidth += (c.advance >> 6) * scale;
+				textWidth += (c.advance >> 6) * scale * m_scale;
 				if (c.size.y >= textHeight)
-					textHeight = (float)c.size.y * scale;
+					textHeight = (float)c.size.y * scale * m_scale;
 			}
 			if (m_centeredX)
 				currX = ((float)windowWidth - textWidth) / 2;
@@ -86,12 +104,13 @@ namespace nf {
 		}
 		glm::vec3 color = { m_color.x, m_color.y, m_color.z };
 		shader->setUniform("textColor", color);
+		shader->setUniform("opacity", m_opacity);
 		for (si = m_string.begin(); si != m_string.end(); si++) {
 			Character& c = m_font->m_characters[*si];
-			float x = currX + (float)c.bearing.x * scale;
-			float y = currY - float(c.size.y - c.bearing.y) * scale;
-			float w = (float)c.size.x * scale;
-			float h = (float)c.size.y * scale;
+			float x = currX + (float)c.bearing.x * scale * m_scale;
+			float y = currY - float(c.size.y - c.bearing.y) * scale * m_scale;
+			float w = (float)c.size.x * scale * m_scale;
+			float h = (float)c.size.y * scale * m_scale;
 			float vb[3][4] = {
 				x, y + h,
 				x, y,
@@ -112,7 +131,7 @@ namespace nf {
 			m_vao->setBufferData(0, vb, sizeof(vb));
 			m_vao->setBufferData(1, tc, sizeof(tc));
 			glDrawArrays(GL_TRIANGLES, 0, 6);
-			currX += (c.advance >> 6) * scale;
+			currX += (c.advance >> 6) * scale * m_scale;
 		}
 	}
 

NothinFancy/src/Renderer/Drawable/UITexture.cpp

@@ -4,20 +4,23 @@
 
 #include "Assets.h"
 #include "Texture.h"
+#include "Shader.h"
 
 namespace nf {
 	UITexture::UITexture() :
 		m_texture(nullptr),
-		m_scale(1.0f)
+		m_scale(1.0f),
+		m_opacity(1.0f)
 	{
 
 	}
 
-	void UITexture::create(Asset* textureAsset, const Vec2& position, double scale) {
+	void UITexture::create(Asset* textureAsset, const Vec2& position, double scale, double opacity) {
 		m_constructed = true;
 		ATexture* tex = (ATexture*)textureAsset;
 		m_position = position;
 		m_scale = (float)scale;
+		m_opacity = (float)opacity;
 		if (tex->alreadyLoaded) {
 			m_texture = tex->loadedTexture;
 		}
@@ -39,6 +42,14 @@ namespace nf {
 		return "texture";
 	}
 
+	void UITexture::setScale(double scale) {
+		m_scale = (float)scale;
+	}
+
+	void UITexture::setOpacity(double opacity) {
+		m_opacity = (float)opacity;
+	}
+
 	void UITexture::render(Shader* shader, unsigned int windowWidth, unsigned int windowHeight) {
 		float posX = (float)m_position.x * windowWidth, posY = (float)m_position.y * windowHeight;
 		float scale = windowWidth / 5.0f;
@@ -69,6 +80,7 @@ namespace nf {
 		m_texture->bind();
 		m_vao->setBufferData(0, vb, sizeof(vb));
 		m_vao->setBufferData(1, tc, sizeof(tc));
+		shader->setUniform("opacity", m_opacity);
 		glDrawArrays(GL_TRIANGLES, 0, 6);
 	}
 

NothinFancy/src/Renderer/Renderer.cpp

@@ -82,6 +82,7 @@ namespace nf {
 		BaseAssets::cone = (AModel*)m_baseAP["cone.obj"];
 		BaseAssets::cylinder = (AModel*)m_baseAP["cylinder.obj"];
 		BaseAssets::torus = (AModel*)m_baseAP["torus.obj"];
+		BaseAssets::logo = (ATexture*)m_baseAP["logo.png"];
 		BaseAssets::defaultFont = (AFont*)m_baseAP["default.ttf"];
 	}
 

NothinFancy/src/Renderer/Texture.cpp

@@ -7,7 +7,10 @@
 #include "Utility.h"
 
 namespace nf {
-	Texture::Texture() {
+	Texture::Texture() :
+		m_x(0),
+		m_y(0)
+	{
 		glGenTextures(1, &m_id);
 	}
 

NothinFancy/src/Utility.cpp

@@ -98,7 +98,6 @@ namespace nf {
 	std::string readFile(const std::string& filename) {
 		std::ifstream in;
 		in.open(filename, std::ios::binary);
-		//TODO: Test this change
 		if (!in)
 			Error("File \"" + (std::string)filename + (std::string)"\" could not be read!");
 		std::stringstream ss;

NothinFancy/src/include/Application.h

@@ -20,6 +20,7 @@ namespace nf {
 		Renderer* getRenderer() const;
 		void addState(Gamestate* state, const std::string& stateName);
 		void addDefaultState(const std::string& stateName);
+		const std::string& getDefaultState();
 		void run();
 		void changeState(const std::string& stateName);
 		void showWindow(bool show);
@@ -67,7 +68,7 @@ namespace nf {
 		//Mapped to const char* to be referenced later in the frontend
 		std::unordered_map<std::string, Gamestate*> m_states;
 		Gamestate* m_sIntro;
-		Gamestate* m_DefaultState;
+		std::string m_defaultState;
 		bool m_defaultStateAdded;
 		Gamestate* m_currentState;
 		bool m_stateChange;

NothinFancy/src/include/Assets.h

@@ -7,39 +7,39 @@ namespace nf {
 	struct Font;
 
 	struct Asset {
-		char* data;
+		char* data = nullptr;
 		bool alreadyLoaded = false;
 		virtual ~Asset();
 	};
 
 	struct AModel : Asset {
-		Model* loadedModel;
+		Model* loadedModel = nullptr;
 
 		~AModel() override;
 	};
 
 	struct ATexture : Asset {
-		size_t size;
-		Texture* loadedTexture;
+		size_t size = 0;
+		Texture* loadedTexture = nullptr;
 
 		~ATexture() override;
 	};
 
 	struct ACubemap : Asset {
-		char* frontData;
-		size_t frontSize;
-		char* backData;
-		size_t backSize;
-		char* topData;
-		size_t topSize;
-		char* bottomData;
-		size_t bottomSize;
-		char* leftData;
-		size_t leftSize;
-		char* rightData;
-		size_t rightSize;
+		char* frontData = nullptr;
+		size_t frontSize = 0;
+		char* backData = nullptr;
+		size_t backSize = 0;
+		char* topData = nullptr;
+		size_t topSize = 0;
+		char* bottomData = nullptr;
+		size_t bottomSize = 0;
+		char* leftData = nullptr;
+		size_t leftSize = 0;
+		char* rightData = nullptr;
+		size_t rightSize = 0;
 
-		unsigned int numImages;
+		unsigned int numImages = 0;
 
 		~ACubemap();
 	};
@@ -49,8 +49,8 @@ namespace nf {
 	};
 
 	struct AFont : Asset {
-		size_t size;
-		Font* loadedFont;
+		size_t size = 0;
+		Font* loadedFont = nullptr;
 
 		~AFont() override;
 	};
@@ -76,8 +76,9 @@ namespace nf {
 		static AModel* cylinder;
 		static AModel* torus;
 
+		static ATexture* logo;
+
 		static AFont* defaultFont;
 
-		//static ATexture* logo;
 	};
 }

NothinFancy/src/include/IntroGamestate.h

@@ -1,5 +1,7 @@
 #pragma once
 #include "Gamestate.h"
+#include "UITexture.h"
+#include "Text.h"
 
 namespace nf {
 	class IntroGamestate : public Gamestate {
@@ -14,6 +16,7 @@ namespace nf {
 		void onExit() override;
 	private:
 		int m_counter;
-		//TODO: Flesh out intro gamestate
+		UITexture logoTex;
+		Text text;
 	};
 }

NothinFancy/src/include/NothinFancy.h

@@ -89,6 +89,7 @@ namespace nf {
 		Renderer* getRenderer() const;
 		void addState(Gamestate* state, const std::string& stateName);
 		void addDefaultState(const std::string& stateName);
+		const std::string& getDefaultState();
 		void run();
 		void changeState(const std::string& stateName);
 		void showWindow(bool show);
@@ -136,7 +137,7 @@ namespace nf {
 		//Mapped to const char* to be referenced later in the frontend
 		std::unordered_map<std::string, Gamestate*> m_states;
 		Gamestate* m_sIntro;
-		Gamestate* m_DefaultState;
+		std::string m_defaultState;
 		bool m_defaultStateAdded;
 		Gamestate* m_currentState;
 		bool m_stateChange;

NothinFancy/src/include/Text.h

@@ -7,10 +7,10 @@
 
 namespace nf {
 	struct Character {
-		unsigned int texID;
+		unsigned int texID = 0;
 		Vec2 size;
 		Vec2 bearing;
-		unsigned int advance;
+		unsigned int advance = 0;
 	};
 
 	struct Font {
@@ -21,9 +21,12 @@ namespace nf {
 	public:
 		Text();
 
-		void create(const std::string& string, const Vec2& position, const Vec3& color = {1.0, 1.0, 1.0}, unsigned int size = 160, Asset* font = BaseAssets::defaultFont);
-		void setText(const std::string& string);
+		void create(const std::string& string, const Vec2& position, const Vec3& color = {1.0, 1.0, 1.0}, double opacity = 1.0, double scale = 1.0, Asset* font = BaseAssets::defaultFont);
 		const char* identity() override;
+		void setText(const std::string& string);
+		void setColor(const Vec3& color);
+		void setScale(double scale);
+		void setOpacity(double opacity);
 		void render(Shader* shader, unsigned int windowWidth, unsigned int windowHeight) override;
 
 		~Text();
@@ -31,5 +34,7 @@ namespace nf {
 		std::string m_string;
 		Font* m_font;
 		Vec3 m_color;
+		float m_scale;
+		float m_opacity;
 	};
 }

NothinFancy/src/include/UITexture.h

@@ -10,13 +10,16 @@ namespace nf {
 	public:
 		UITexture();
 
-		void create(Asset* textureAsset, const Vec2& position, double scale = 1.0);
+		void create(Asset* textureAsset, const Vec2& position, double scale = 1.0, double opacity = 1.0 );
 		const char* identity() override;
+		void setScale(double scale);
+		void setOpacity(double opacity);
 		void render(Shader* shader, unsigned int windowWidth, unsigned int windowHeight) override;
 
 		~UITexture();
 	private:
 		Texture* m_texture;
 		float m_scale;
+		float m_opacity;
 	};
 }