Support for multiple fonts

# Conflicts:
#	CMakeLists.txt

CMakeLists.txt

@@ -9,59 +9,88 @@ if (PROJECT_SOURCE_DIR STREQUAL PROJECT_BINARY_DIR)
 endif()
 
 set(CMAKE_CXX_STANDARD 20)
-if (WIN32)
-    set(CMAKE_CXX_FLAGS "-municode")
-endif(WIN32)
-
 set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")
 
-
 # Enable Package Managers
 include(cmake/CPM.cmake)
 
 CPMAddPackage(
         NAME J3ML
-        URL https://git.redacted.cc/josh/j3ml/archive/Prerelease-18.zip
+        URL https://git.redacted.cc/josh/j3ml/archive/Release-2.2.zip
 )
 
 CPMAddPackage(
         NAME ReWindow
-        URL https://git.redacted.cc/Redacted/ReWindow/archive/vA0.2.14.zip
+        URL https://git.redacted.cc/Redacted/ReWindow/archive/Prerelease-3.zip
 )
 
 CPMAddPackage(
         NAME GLAD
-        URL https://git.redacted.cc/Redacted/glad/archive/v2.1.zip
+        URL https://git.redacted.cc/Redacted/glad/archive/v2.1ext_mt.zip
 )
 
+CPMAddPackage(
+        NAME jlog
+        URL https://git.redacted.cc/josh/jlog/Prerelease-9.zip
+)
+
+CPMAddPackage(
+        NAME Event
+        URL https://git.redacted.cc/josh/Event/archive/Release-6.zip
+)
+if (WIN32)
+    #CPMAddPackage(
+            #NAME harfbuzz
+            #URL https://github.com/harfbuzz/harfbuzz/archive/refs/tags/9.0.0.zip
+    #)
+
+    CPMAddPackage(
+            NAME freetype
+            URL https://github.com/freetype/freetype/archive/refs/tags/VER-2-13-2.zip
+    )
+endif()
+
+file(COPY "assets" DESTINATION "${PROJECT_BINARY_DIR}")
+file(GLOB_RECURSE ASSETS  "assets/*")
 file(GLOB_RECURSE HEADERS "include/*.h" "include/*.hpp")
 file(GLOB_RECURSE SOURCES "src/*.c"     "src/*.cpp"    )
-file(GLOB_RECURSE ASSETS  "content/*")
-
-add_library(JGL SHARED ${SOURCES}
-        include/JGL/JGL.h
-        src/JGL/JGL.cpp
-        include/LearnOpenGL/Shader.h
-        include/LearnOpenGL/Texture2D.h
-        include/JGL/Color3.h
-        include/JGL/Colors.h
-        include/JGL/Color4.h
-        )
-set_target_properties(JGL PROPERTIES LINKER_LANGUAGE CXX)
 
 find_package(OpenGL REQUIRED)
-find_package(GLUT REQUIRED)
-find_package(Freetype REQUIRED)
+
+if (UNIX AND NOT APPLE)
+    find_package(Freetype REQUIRED)
+    add_library(JGL SHARED ${SOURCES})
+endif()
+
+if (WIN32)
+    add_library(JGL STATIC ${SOURCES})
+endif()
+
+set_target_properties(JGL PROPERTIES LINKER_LANGUAGE CXX)
+
+target_include_directories(JGL PUBLIC
+        ${PROJECT_SOURCE_DIR}/include
+        ${OPENGL_INCLUDE_DIRS}
+        ${J3ML_SOURCE_DIR}/include
+        ${Event_SOURCE_DIR}/include
+        ${ReWindow_SOURCE_DIR}/include
+        ${glad_SOURCE_DIR}/include
+        ${jlog_SOURCE_DIR}/include
+)
 
 add_executable(JGL_Demo main.cpp)
-set_target_properties(JGL_Demo PROPERTIES LINK_FLAGS "-Wl,-rpath,./lib")
-include_directories(${PROJECT_SOURCE_DIR}/include)
-include_directories(${OPENGL_INCLUDE_DIRS})
-include_directories(${GLUT_INCLUDE_DIRS})
-include_directories(${J3ML_SOURCE_DIR}/include)
-include_directories(${ReWindow_SOURCE_DIR}/include)
-include_directories(${glad_SOURCE_DIR}/include)
+#set_target_properties(JGL_Demo PROPERTIES LINK_FLAGS "-Wl,-rpath,./lib")
 
-target_link_libraries(JGL PRIVATE ${FREETYPE_LIBRARIES})
-target_include_directories(JGL PRIVATE ${FREETYPE_INCLUDE_DIRS})
-target_link_libraries(JGL_Demo PUBLIC JGL ${OPENGL_LIBRARIES} ${GLUT_LIBRARIES} J3ML ReWindowLibrary GLEW glad)
+if (UNIX AND NOT APPLE)
+    target_include_directories(JGL PRIVATE ${FREETYPE_INCLUDE_DIRS})
+    target_link_libraries(JGL PRIVATE ${FREETYPE_LIBRARIES})
+    target_link_libraries(JGL PUBLIC ${OPENGL_LIBRARIES} J3ML ReWindowLibrary glad jlog Event)
+endif()
+
+if (WIN32)
+    target_include_directories(JGL PRIVATE ${freetype_SOURCE_DIR}/include)
+    target_link_libraries(JGL PRIVATE freetype)
+    target_link_libraries(JGL PUBLIC ${OPENGL_LIBRARIES} J3ML ReWindowLibrary glad jlog Event)
+endif()
+
+target_link_libraries(JGL_Demo PUBLIC JGL)

include/JGL/JGL.h

@@ -3,14 +3,15 @@
 //
 #pragma once
 
-#include <J3ML/LinearAlgebra.h>
-#include <J3ML/LinearAlgebra/Vector2.h>
-#include <J3ML/LinearAlgebra/Vector3.h>
 #include <string>
 #include <iostream>
 #include <JGL/Color3.h>
+#include <J3ML/LinearAlgebra.h>
+#include <J3ML/LinearAlgebra/Vector2.h>
+#include <J3ML/LinearAlgebra/Vector3.h>
 #include <J3ML/Geometry/Sphere.h>
-
+#include <J3ML/Geometry/Capsule.h>
+#include <J3ML/Geometry/TriangleMesh.h>
 // OpenGL Wrapper for rendering 2D graphics primitives in both a 2D and 3D context
 namespace JGL {
 
@@ -22,6 +23,10 @@ namespace JGL {
     using J3ML::LinearAlgebra::Quaternion;
 
     using J3ML::Geometry::Sphere;
+    using J3ML::Geometry::OBB;
+    using J3ML::Geometry::Capsule;
+    using J3ML::Geometry::TriangleMesh;
+    using J3ML::Geometry::Plane;
 
     struct HSV {
         float hue;
@@ -44,26 +49,26 @@ namespace JGL {
     };
 
     bool InitTextEngine();
-
+    int LoadFont(const std::string& font_path);
+    void UnloadFont(int font_index);
     // TODO: implement correct coloring
-    using J3ML::u32;
-    void RenderText(std::string text, float x, float y, float scale, u32 size = 16);
 
     namespace J2D {
-        void DrawPixel2D(const Color3& color, const Vector2 &coordinates);
-        void DrawPixel2D(const Color3& color, float x, float y);
-        void DrawLine2D(const Color3& color, const Vector2 &A, const Vector2 &B, float thickness = 1);
-        void DrawLine2D(const Color3& color, float x, float y, float w, float h, float thickness = 1);
+        void DrawPixel2D(const Color3 &color, const Vector2 &coordinates);
+        void DrawPixel2D(const Color3 &color, float x, float y);
+        void DrawLine2D(const Color3 &color, const Vector2 &A, const Vector2 &B, float thickness = 1);
+        void DrawLine2D(const Color3 &color, float x, float y, float w, float h, float thickness = 1);
         void DrawCubicBezierCurve2D();
-        void OutlineCircle2D(const Color3& color, const Vector2& center, float radius, int subdivisions, float thickness = 1);
-        void FillCircle2D(const Color3& color, const Vector2& center, float radius, int subdivisions);
-        void OutlineTriangle2D();
-        void FillTriangle2D(const Color3& color, const Triangle2D& tri);
+        void OutlineCircle2D(const Color3 &color, const Vector2 &center, float radius, int subdivisions,
+                             float thickness = 1);
+        void FillCircle2D(const Color3 &color, const Vector2 &center, float radius, int subdivisions);
+        void OutlineTriangle2D(const Color3 &color, const Triangle2D &tri);
+        void FillTriangle2D(const Color3 &color, const Triangle2D &tri);
         void FillTexturedTriangle2D();
         void FillTexturedPolygon2D();
         void DrawSprite2D();
         void DrawPartialSprite2D();
-        void DrawString2D();
+        void DrawString2D(const Color3& color, std::string text, float x, float y, float scale, u32 size, unsigned int font_index);
         void FillRect2D(const Color3 &color, const Vector2 &pos, const Vector2 &size);
         void OutlineRect2D       ( const Color3& color, const Vector2& pos, const Vector2& size, float thickness = 1);
         void FillRoundedRect2D   (const Color3& color, const Vector2& pos, const Vector2& size, float radius);
@@ -74,12 +79,15 @@ namespace JGL {
     }
     namespace J3D {
         void DrawLine3D(const Color3& color, const Vector3 &A, const Vector3 &B, float thickness = 1);
-        void FillSphere3D();
-        void WireframeSphere3D(const Sphere& sphere)
-        {
-
-        }
-        void DrawString3D(const Color3& color, const std::string& text, const Vector3& pos, float scale, u32 size = 12);
+        void FillSphere3D(const Color3& color, const Sphere& sphere);
+        void WireframeSphere3D(const Color3& color, const Sphere& sphere, float thickness = 1);
+        void FillOBB3D(const Color3& color, const OBB& obb);
+        void WireframeOBB3D(const Color3& color, const OBB& obb, float thickness = 1);
+        void FillCapsule3D(const Color3& color, const Capsule& capsule);
+        void WireframeCapsule3D(const Color3& color, const Capsule& cap, float thickness = 1);
+        void FillTriangleMesh3D(const Color3& color, const TriangleMesh& mesh);
+        void WireframeTriangleMesh3D(const Color3& color, const TriangleMesh& mesh, float thickness = 1);
+        void DrawString3D(const Color3& color, const std::string& text, const Vector3& pos, float scale, u32 size, unsigned int font_index);
 
         void DrawMatrixGizmo     (const Matrix3x3&, const Vector3&);
         void DrawMatrixGizmo     (const Matrix4x4&);

include/LearnOpenGL/Shader.h

@@ -1,58 +0,0 @@
-#pragma once
-
-// LearnOpenGL::Shader
-// OpenGL Shader Class Wrapper
-// Updated by dawsh
-// https://learnopengl.com/code_viewer_gh.php?code=includes/learnopengl/shader.h
-
-#include <filesystem>
-#include <string>
-#include <iostream>
-#include <fstream>
-#include <glad/glad.h>
-#include <J3ML/LinearAlgebra/Vector2.h>
-#include <J3ML/LinearAlgebra/Vector3.h>
-#include <J3ML/LinearAlgebra/Vector4.h>
-#include <J3ML/LinearAlgebra/Matrix2x2.h>
-#include <J3ML/LinearAlgebra/Matrix3x3.h>
-#include <J3ML/LinearAlgebra/Matrix4x4.h>
-
-namespace LearnOpenGL {
-    using J3ML::LinearAlgebra::Vector2;
-    using J3ML::LinearAlgebra::Vector3;
-    using J3ML::LinearAlgebra::Vector4;
-    using J3ML::LinearAlgebra::Matrix2x2;
-    using J3ML::LinearAlgebra::Matrix3x3;
-    using J3ML::LinearAlgebra::Matrix4x4;
-
-    class Shader
-    {
-    public:
-        unsigned int ID{};
-
-        Shader();
-        Shader(std::filesystem::path vertexProgramPath, std::filesystem::path fragmentProgramPath);
-        Shader(std::string vertexProgramSrc, std::string fragmentProgramSrc);
-
-        void use();
-        // Utility uniform functions
-        void setBool(const std::string& name, bool value) const;
-        void setInt(const std::string& name, int value) const;
-        void setFloat(const std::string& name, float value) const;
-        void setVec2(const std::string& name, const Vector2& value) const;
-        void setVec2(const std::string& name, float x, float y) const;
-        void setVec3(const std::string& name, const Vector3& value) const;
-        void setVec3(const std::string& name, float x, float y, float z) const;
-        void setVec4(const std::string& name, const Vector4& value) const;
-        void setVec4(const std::string& name, float x, float y, float z, float w) const;
-        void setMat2(const std::string& name, const Matrix2x2 &mat) const;
-        void setMat3(const std::string& name, const Matrix3x3 &mat) const;
-        void setMat4(const std::string& name, const Matrix4x4 &mat) const;
-
-        GLint getAttribute(const std::string& name) const;
-        GLint getUniform(const std::string& name) const;
-
-    private:
-        void checkCompileErrors(GLuint shader, std::string type);
-    };
-}

include/LearnOpenGL/Texture2D.h

@@ -1,23 +0,0 @@
-#pragma once
-
-namespace {
-    // Texture2D is able to store and configure a texture in OpenGL
-    // It also hosts utility functions for easy management.
-    class Texture2D {
-    public:
-        unsigned int ID; // ID of the texture object
-        unsigned int Width, Height;
-        unsigned int InternalFormat;
-        unsigned int ImageFormat;
-        unsigned int WrapS;
-        unsigned int WrapT;
-        unsigned int Filter_Min;
-        unsigned int Filter_Max;
-
-        Texture2D();
-
-        void Generate(unsigned int width, unsigned int height, unsigned char *data);
-
-        void Bind() const;
-    };
-}

main.cpp

@@ -1,18 +1,11 @@
-//#include <GL/glew.h>
 #include <glad/glad.h>
 #include <JGL/JGL.h>
 #include <rewindow/types/window.h>
-#include <iostream>
-#include <LearnOpenGL/Shader.h>
 #include <JGL/Colors.h>
 #include <J3ML/LinearAlgebra/Vector2.h>
 
 using J3ML::LinearAlgebra::Vector2;
 
-#if defined(_WIN32) || defined(_WIN64)
-#include <windows.h>
-#endif
-
 struct Character
 {
     unsigned int TextureID; // ID handle of the glyph texture
@@ -23,21 +16,6 @@ struct Character
 
 std::map<char, Character> Characters;
 GLuint VAO, VBO;
-const std::string vertexShader = "attribute vec4 coord;\n"
-                                 "varying vec2 texpos;\n"
-                                 "\n"
-                                 "void main(void) {\n"
-                                 "  gl_Position = vec4(coord.xy, 0, 1);\n"
-                                 "  texpos = coord.zw;\n"
-                                 "}\n"
-                                 "";
-const std::string fragmentShader = "varying vec2 texpos;\n"
-                                   "uniform sampler2D tex;\n"
-                                   "uniform vec4 color;\n"
-                                   "\n"
-                                   "void main(void) {\n"
-                                   "  gl_FragColor = vec4(1, 1, 1, texture2D(tex, texpos).a) * color;\n"
-                                   "}";
 
 using J3ML::LinearAlgebra::Matrix4x4;
 
@@ -48,12 +26,16 @@ struct point {
     GLfloat t;
 };
 
+int FreeSans;
+int Jupiteroid;
+
 class JGLDemoWindow : public ReWindow::RWindow
 {
 public:
-    LearnOpenGL::Shader shader;
 
-    JGLDemoWindow() : ReWindow::RWindow()
+    JGLDemoWindow() : ReWindow::RWindow() {}
+    JGLDemoWindow(const std::string& title, int width, int height) :
+            ReWindow::RWindow(title, width, height)
     {
 
     }
@@ -64,24 +46,30 @@ public:
 
         glMatrixMode(GL_PROJECTION);
         glLoadIdentity();
-        glOrtho(0, 1024, 768, 0, -1, 1);
+        glOrtho(0, getSize().x, getSize().y, 0, -1, 1);
         glMatrixMode(GL_MODELVIEW);
 
         glPixelStorei(GL_UNPACK_ALIGNMENT, 1);
 
-        //glEnable(GL_CULL_FACE);
+        glEnable(GL_CULL_FACE);
         glEnable(GL_BLEND);
         glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
         glEnable(GL_TEXTURE_2D);
 
-        JGL::InitTextEngine();
+         JGL::InitTextEngine();
+         FreeSans = JGL::LoadFont("assets/fonts/FreeSans.ttf");
+         Jupiteroid = JGL::LoadFont("assets/fonts/Jupiteroid.ttf");
     }
 
 
-    void display()
-    {
+    void display() {
         glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
 
+        glMatrixMode(GL_PROJECTION);
+        glLoadIdentity();
+        glOrtho(0, getSize().x, getSize().y, 0, -1, 1);
+        glMatrixMode(GL_MODELVIEW);
+
         JGL::J2D::FillRect2D(JGL::Colors::Blue, {32, 32}, {100.5, 100.5});
         JGL::J2D::FillRect2D(JGL::Colors::Blue, {32, 32}, {100.5, 100.5});
 
@@ -92,15 +80,13 @@ public:
                         {105, 100}
                 };
         JGL::J2D::FillTriangle2D(JGL::Colors::Yellow, tri);
-
-
-        JGL::J3D::DrawString3D(JGL::Colors::White, "JGL Sample Text", {1, -120, 0.5f}, 2.f);
-        JGL::RenderText("William J. Tomasine II ", 0.f, -120.f, 1.f);
-
         JGL::J2D::DrawLine2D(JGL::Colors::Greens::DarkGreen, {10, 10}, {200, 300});
         JGL::J3D::DrawLine3D(JGL::Colors::Red, {0,0,0}, {1,0,0});
         JGL::J3D::DrawLine3D(JGL::Colors::Red, {0,0,0}, {1,0,0});
 
+        JGL::J3D::DrawString3D(JGL::Colors::Red, "JGL Sample Text", {1, -32, 0.5f}, 1.f, 32, FreeSans);
+        JGL::J2D::DrawString2D(JGL::Colors::Green, "Jupiteroid Font", 0.f, -48.f, 1.f, 16, Jupiteroid);
+
         //glFlush();
     }
 
@@ -117,11 +103,11 @@ public:
 
 int main(int argc, char** argv)
 {
-    auto* window = new JGLDemoWindow();
-
-    window->init(RenderingAPI::OPENGL, "Window", 1280, 720, false);
+    auto* window = new JGLDemoWindow("JGL Demo Window", 1280, 720);
+    window->setRenderer(RenderingAPI::OPENGL);
+    window->Open();
     window->initGL();
-    window->setResizable(true);
+    window->setResizable(false);
     while (window->isAlive())
     {
         window->pollEvents();

src/JGL.cpp

@@ -2,102 +2,63 @@
 // Created by dawsh on 1/17/24.
 //
 
+#include <vector>
 #include <glad/glad.h>
 #include <JGL/JGL.h>
-#include <GL/glut.h>
-#include <J3ML/LinearAlgebra/Transform2D.h>
-#include <rewindow/types/window.h>
-#include <freetype2/ft2build.h>
-#include FT_FREETYPE_H
-#include "JGL/Color3.h"
-#include <iostream>
-
+#include <JGL/Color3.h>
+#if __linux__
+    #include <freetype2/ft2build.h>
+    #include FT_FREETYPE_H
+#endif
+#if _WIN32
+    #include <ft2build.h>
+    #include FT_FREETYPE_H
+#endif
 
 GLuint program;
-GLuint texture;
-
 namespace JGL
 {
-
-    FT_Face face;
     FT_Library ft;
 
+    struct Font {
+        int index = 0;
+        FT_Face face;
+    };
+
+    std::vector<Font> faces;
+
     using namespace J3ML;
-
     bool InitTextEngine() {
-        constexpr u32 default_font_size = 16;
         if (FT_Init_FreeType(&ft))
-        {
-            std::cout << "Error::FREETYPE: " << std::endl;
-            return false;
-        }
-
-        if (FT_New_Face(ft, "content/FreeSans.ttf", 0, &face))
-        {
-            std::cout << "Error::FREETYPE: Failed to load font!" << std::endl;
-            return false;
-        }
-
-        return true;
+            return true;
+        return false;
     }
 
-    void RenderText(std::string text, float x, float y, float scale, u32 text_size) {
-        glUseProgram(0); // Fixed-function pipeline.
-        glColor3f(1.0f, 1.0f, 1.0f);
-
-        FT_Set_Pixel_Sizes(face, 0, text_size);
-
-        const char* c;
-        for (c = text.c_str(); *c; c++)
-        {
-            if (FT_Load_Char(face, *c, FT_LOAD_RENDER))
-                continue;
-
-            FT_GlyphSlot g = face->glyph;
-
-            glActiveTexture(GL_TEXTURE0);
-            glGenTextures(1, &texture);
-            glBindTexture(GL_TEXTURE_2D, texture);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
-            glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
-            glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, g->bitmap.width, g->bitmap.rows, 0, GL_ALPHA, GL_UNSIGNED_BYTE, g->bitmap.buffer);
-
-            float x2 = x + g->bitmap_left * scale;
-            float y2 = -y - g->bitmap_top * scale; // Adjust y-coordinate
-            float w = g->bitmap.width * scale;
-            float h = g->bitmap.rows * scale;
-
-            glBegin(GL_TRIANGLES);
-
-                glTexCoord2f(0, 0);
-                glVertex2f(x2, y2);
-
-                glTexCoord2f(0, 1);
-                glVertex2f(x2, y2 + h);
-
-                glTexCoord2f(1, 1);
-                glVertex2f(x2 + w, y2 + h);
-
-                glTexCoord2f(0, 0);
-                glVertex2f(x2, y2);
-
-                glTexCoord2f(1, 1);
-                glVertex2f(x2 + w, y2 + h);
-
-                glTexCoord2f(1, 0);
-                glVertex2f(x2 + w, y2);
-
-            glEnd();
-
-            x += (g->advance.x >> 6) * scale;
-            y += (g->advance.y >> 6) * scale;
-
+    int LoadFont(const std::string &font_path) {
+        if (ft == nullptr)
+            return -1;
+        Font font;
+        if (FT_New_Face(ft, font_path.c_str(), 0, &font.face)) {
+            std::cout << "Error::FREETYPE: Failed to load font!" << std::endl;
+            return -1;
         }
-        glBindTexture(GL_TEXTURE_2D, 0); // Unbind texture
+
+        unsigned int newIndex = 0;
+            for (const auto& f : faces)
+                if (f.index >= newIndex)
+                    newIndex = f.index + 1;
+        font.index = newIndex;
+        faces.push_back(font);
+
+        std::cout << "Loaded font from " << font_path << " with index " << newIndex << std::endl;
+        return newIndex;
+    }
+
+    void UnloadFont(int font_index) {
+        for (int i = 0; i < faces.size(); i++)
+            if (faces[i].index == font_index)
+                FT_Done_Face(faces[i].face),
+                faces.erase(faces.begin() + i);
     }
 
     namespace J2D
@@ -189,6 +150,16 @@ namespace JGL
             glEnd();
         }
 
+        void OutlineTriangle2D(const Color3& color, const Triangle2D& tri)
+        {
+            glBegin(GL_LINE_LOOP);
+            glColor3f(color.r/255.f, color.g/255.f, color.b/255.f);
+            glVertex2f(tri.A.x, tri.A.y);
+            glVertex2f(tri.B.x, tri.B.y);
+            glVertex2f(tri.C.x, tri.C.y);
+            glEnd();
+        }
+
         void FillTriangle2D(const Color3& color, const Triangle2D& tri)
         {
             glBegin(GL_LINE_LOOP);
@@ -198,6 +169,85 @@ namespace JGL
             glVertex2f(tri.C.x, tri.C.y);
             glEnd();
         }
+
+        void DrawString2D(const Color3& color, std::string text, float x, float y, float scale, u32 size, unsigned int font_index) {
+            glUseProgram(0); // Fixed-function pipeline.
+
+            Font font{};
+            for (const auto& f : faces)
+                if (f.index == font_index)
+                    font = f;
+            if (font.face == NULL) {
+                std::cout << "null font" << std::endl;
+                return;
+            }
+
+            GLfloat currentColor[4];
+            glGetFloatv(GL_CURRENT_COLOR, currentColor);
+
+            glColor3f(color.r/255.f, color.g/255.f, color.b/255.f);
+
+            FT_Set_Pixel_Sizes(font.face, 0, size);
+
+            std::vector<GLuint> textures(text.length());
+            for (int i = 0; i < text.length(); i++)
+            {
+                if (FT_Load_Char(font.face, text.c_str()[i], FT_LOAD_RENDER))
+                    continue;
+
+                FT_GlyphSlot g = font.face->glyph;
+                glEnable(GL_BLEND);
+                glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
+                glActiveTexture(GL_TEXTURE0);
+                glEnable(GL_TEXTURE_2D);
+                glGenTextures(1, &textures.at(i));
+                glBindTexture(GL_TEXTURE_2D, textures[i]);
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_BASE_LEVEL, 0);
+                glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAX_LEVEL, 0);
+                glTexImage2D(GL_TEXTURE_2D, 0, GL_ALPHA, g->bitmap.width, g->bitmap.rows, 0, GL_ALPHA, GL_UNSIGNED_BYTE, g->bitmap.buffer);
+
+                float x2 = x + g->bitmap_left * scale;
+                float y2 = -y - g->bitmap_top * scale; // Adjust y-coordinate
+                float w = g->bitmap.width * scale;
+                float h = g->bitmap.rows * scale;
+
+                glBegin(GL_TRIANGLES);
+
+                glTexCoord2f(0, 0);
+                glVertex2f(x2, y2);
+
+                glTexCoord2f(0, 1);
+                glVertex2f(x2, y2 + h);
+
+                glTexCoord2f(1, 1);
+                glVertex2f(x2 + w, y2 + h);
+
+                glTexCoord2f(0, 0);
+                glVertex2f(x2, y2);
+
+                glTexCoord2f(1, 1);
+                glVertex2f(x2 + w, y2 + h);
+
+                glTexCoord2f(1, 0);
+                glVertex2f(x2 + w, y2);
+
+                glEnd();
+
+                x += (g->advance.x >> 6) * scale;
+                y += (g->advance.y >> 6) * scale;
+            }
+            for (unsigned int& texture : textures)
+                glDeleteTextures(1, &texture);
+
+            glDisable(GL_TEXTURE_2D);
+            glDisable(GL_BLEND);
+            glBindTexture(GL_TEXTURE_2D, 0); // Unbind texture
+            glColor4f(currentColor[0], currentColor[1], currentColor[2], currentColor[3]); //Set draw color back to whatever it was before.
+        }
     }
 
 
@@ -205,7 +255,6 @@ namespace JGL
     {
         void DrawLine3D(const Color3& color, const Vector3& A, const Vector3& B, float thickness)
         {
-
             glBegin(GL_LINES);
             glLineWidth(thickness);
             glColor3f(color.r/255.f, color.g/255.f, color.b/255.f);
@@ -214,27 +263,42 @@ namespace JGL
             glEnd();
         }
 
-        void DrawString3D(const Color3& color, const std::string& text, const Vector3& pos, float scale, u32 size)
+        void DrawString3D(const Color3& color, const std::string& text, const Vector3& pos, float scale, u32 size, unsigned int font_index)
         {
             float x = pos.x;
             float y = pos.y;
             float z = pos.z;
+            GLfloat currentColor[4];
+             std::vector<GLuint> textures(text.length());;
+            glGetFloatv(GL_CURRENT_COLOR, currentColor);
             glUseProgram(0); // Fixed-function pipeline.
-            glColor3f(1.0f, 1.0f, 1.0f);
+            glColor4f(color.r, color.g, color.b, 1.0f);
 
-            FT_Set_Pixel_Sizes(face, 0, size);
+            Font font;
+            for (auto& f : faces)
+                if (f.index == font_index)
+                    font = f;
+            if (font.face == NULL) {
+                std::cout << "null font" << std::endl;
+                return;
+            }
 
-            const char* c;
-            for (c = text.c_str(); *c; c++)
+
+            FT_Set_Pixel_Sizes(font.face, 0, size);
+
+            //for (c = text.c_str(); *c; c++)
+            for (int i = 0; i < text.length(); i++)
             {
-                if (FT_Load_Char(face, *c, FT_LOAD_RENDER))
+                if (FT_Load_Char(font.face, text.c_str()[i], FT_LOAD_RENDER))
                     continue;
 
-                FT_GlyphSlot g = face->glyph;
-
+                FT_GlyphSlot g = font.face->glyph;
+                glEnable(GL_BLEND);
+                glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
                 glActiveTexture(GL_TEXTURE0);
-                glGenTextures(1, &texture);
-                glBindTexture(GL_TEXTURE_2D, texture);
+                glEnable(GL_TEXTURE_2D);
+                glGenTextures(1, &textures.at(i));
+                glBindTexture(GL_TEXTURE_2D, textures[i]);
                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
                 glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
@@ -275,7 +339,14 @@ namespace JGL
                 y += (g->advance.y >> 6) * scale;
 
             }
+
+            for (unsigned int& texture : textures)
+                glDeleteTextures(1, &texture);
+
+            glDisable(GL_TEXTURE_2D);
+            glDisable(GL_BLEND);
             glBindTexture(GL_TEXTURE_2D, 0); // Unbind texture
+            glColor4f(currentColor[0], currentColor[1], currentColor[2], currentColor[3]); //Set draw color back to whatever it was before.
         }
 
     }

src/LearnOpenGL/Shader.cpp

@@ -1,209 +0,0 @@
-#include <LearnOpenGL/Shader.h>
-
-
-
-
-
-namespace LearnOpenGL
-{
-
-    Shader::Shader(std::filesystem::path vertexProgramPath, std::filesystem::path fragmentProgramPath) {
-        std::string vertexCode;
-        std::string fragmentCode;
-        std::string geometryCode;
-        std::ifstream vShaderFile;
-        std::ifstream fShaderFile;
-        std::ifstream gShaderFile;
-
-        vShaderFile.exceptions(std::ifstream::failbit | std::ifstream::badbit);
-        vShaderFile.exceptions(std::ifstream::failbit | std::ifstream::badbit);
-        vShaderFile.exceptions(std::ifstream::failbit | std::ifstream::badbit);
-
-        try { // Open Files
-            vShaderFile.open(vertexProgramPath);
-            fShaderFile.open(fragmentProgramPath);
-            std::stringstream vShaderStream, fShaderStream;
-            // read file's buffer contents into streams
-            vShaderStream << vShaderFile.rdbuf();
-            fShaderStream << fShaderFile.rdbuf();
-            // close file handlers
-            vShaderFile.close();
-            fShaderFile.close();
-            // convert stream into string
-            vertexCode = vShaderStream.str();
-            fragmentCode = fShaderStream.str();
-            if (false)
-            {
-                gShaderFile.open("");
-                std::stringstream gShaderStream;
-                gShaderStream << gShaderFile.rdbuf();
-                gShaderFile.close();
-                geometryCode = gShaderStream.str();
-            }
-        } catch (std::ifstream::failure& e) {
-            std::cout << "ERROR::SHADER::FILE_NOT_SUCCESSFULLY_READ: " << e.what() << std::endl;
-        }
-        const char* vShaderCode = vertexCode.c_str();
-        const char* fShaderCode = fragmentCode.c_str();
-        // 2. Compile shaders
-        unsigned int vertex, fragment;
-        // vertex shader
-        vertex = glCreateShader(GL_VERTEX_SHADER);
-        glShaderSource(vertex, 1, &vShaderCode, NULL);
-        glCompileShader(vertex);
-        checkCompileErrors(vertex, "VERTEX");
-        // fragment shader
-        fragment = glCreateShader(GL_FRAGMENT_SHADER);
-        glShaderSource(fragment, 1, &fShaderCode, NULL);
-        glCompileShader(fragment);
-        checkCompileErrors(fragment, "FRAGMENT");
-        // if geometry shader is given, compile geometry shader
-        unsigned int geometry;
-        if (false)
-        {
-            //const char * gShaderCode = geometryCode.c_str();
-            //geometry = glCreateShader(GL_GEOMETRY_SHADER);
-            //glShaderSource(geometry, 1, &gShaderCode, NULL);
-            //glCompileShader(geometry);
-            //checkCompileErrors(geometry, "GEOMETRY");
-        }
-        // shader Program
-        ID = glCreateProgram();
-        glAttachShader(ID, vertex);
-        glAttachShader(ID, fragment);
-        if (false) // geometryPath != nullptr)
-            glAttachShader(ID, geometry);
-        glLinkProgram(ID);
-        checkCompileErrors(ID, "PROGRAM");
-        // delete the shaders as they're linked into our program now and are no longer necessary
-        glDeleteShader(vertex);
-        glDeleteShader(fragment);
-        if (false) //geometryPath != nullptr)
-            glDeleteShader(geometry);
-    }
-
-    Shader::Shader(std::string vertexProgramSrc, std::string fragmentProgramSrc) {
-
-        std::string geometryCode;
-
-        const char* vShaderCode = vertexProgramSrc.c_str();
-        const char* fShaderCode = fragmentProgramSrc.c_str();
-        // 2. Compile shaders
-        unsigned int vertex, fragment;
-        // vertex shader
-        vertex = glCreateShader(GL_VERTEX_SHADER);
-        glShaderSource(vertex, 1, &vShaderCode, NULL);
-        glCompileShader(vertex);
-        checkCompileErrors(vertex, "VERTEX");
-        // fragment shader
-        fragment = glCreateShader(GL_FRAGMENT_SHADER);
-        glShaderSource(fragment, 1, &fShaderCode, NULL);
-        glCompileShader(fragment);
-        checkCompileErrors(fragment, "FRAGMENT");
-        // if geometry shader is given, compile geometry shader
-        unsigned int geometry;
-        if (false)
-        {
-            //const char * gShaderCode = geometryCode.c_str();
-            //geometry = glCreateShader(GL_GEOMETRY_SHADER);
-            //glShaderSource(geometry, 1, &gShaderCode, NULL);
-            //glCompileShader(geometry);
-            //checkCompileErrors(geometry, "GEOMETRY");
-        }
-        // shader Program
-        ID = glCreateProgram();
-        glAttachShader(ID, vertex);
-        glAttachShader(ID, fragment);
-        if (false) // geometryPath != nullptr)
-            glAttachShader(ID, geometry);
-        glLinkProgram(ID);
-        checkCompileErrors(ID, "PROGRAM");
-        // delete the shaders as they're linked into our program now and are no longer necessary
-        glDeleteShader(vertex);
-        glDeleteShader(fragment);
-        if (false) //geometryPath != nullptr)
-            glDeleteShader(geometry);
-    }
-
-    void Shader::use() {
-        glUseProgram(ID);
-    }
-
-    GLint Shader::getAttribute(const std::string& name) const
-    {
-        return glGetAttribLocation(ID, name.c_str());
-    }
-
-    GLint Shader::getUniform(const std::string &name) const {
-        return glGetUniformLocation(ID, name.c_str());
-    }
-
-    void Shader::setBool(const std::string &name, bool value) const {
-        glUniform1i(glGetUniformLocation(ID, name.c_str()), (int)value);
-    }
-
-    void Shader::setInt(const std::string &name, int value) const {
-        glUniform1i(glGetUniformLocation(ID, name.c_str()), value);
-    }
-
-    void Shader::setFloat(const std::string &name, float value) const {
-        glUniform1f(glGetUniformLocation(ID, name.c_str()), value);
-    }
-
-    void Shader::setVec2(const std::string &name, const Vector2 &value) const {
-        glUniform2f(glGetUniformLocation(ID, name.c_str()), value.x, value.y);
-    }
-
-    void Shader::setVec2(const std::string &name, float x, float y) const {
-        glUniform2f(glGetUniformLocation(ID, name.c_str()), x, y);
-    }
-
-    void Shader::setVec3(const std::string &name, const Vector3 &value) const {
-        glUniform3f(glGetUniformLocation(ID, name.c_str()), value.x, value.y, value.z);
-    }
-
-    void Shader::setVec3(const std::string &name, float x, float y, float z) const {
-        glUniform3f(glGetUniformLocation(ID, name.c_str()), x, y, z);
-    }
-
-    void Shader::setVec4(const std::string &name, const Vector4 &value) const {
-        glUniform4f(glGetUniformLocation(ID, name.c_str()), value.x, value.y, value.z, value.w);
-    }
-
-    void Shader::setVec4(const std::string &name, float x, float y, float z, float w) const {
-        glUniform4f(glGetUniformLocation(ID, name.c_str()), x, y, z, w);
-    }
-
-    void Shader::setMat2(const std::string &name, const Matrix2x2 &mat) const {
-        //glUniformMatrix2fv(glGetUniformLocation(ID, name.c_str()), 1, GL_FALSE, &mat.At(0, 0));
-    }
-
-    void Shader::setMat3(const std::string &name, const Matrix3x3 &mat) const {
-        //glUniformMatrix3fv(glGetUniformLocation(ID, name.c_str()), 1, GL_FALSE, &mat.At(0, 0));
-    }
-
-    void Shader::setMat4(const std::string &name, const Matrix4x4 &mat) const {
-        //glUniformMatrix4fv(glGetUniformLocation(ID, name.c_str()), 1, GL_FALSE, &mat.At(0, 0));
-    }
-
-    void Shader::checkCompileErrors(GLuint shader, std::string type) {
-        GLint success;
-        GLchar infoLog[1024];
-        if (type != "PROGRAM") {
-            glGetShaderiv(shader, GL_COMPILE_STATUS, &success);
-            if (!success) {
-                glGetShaderInfoLog(shader, 1024, NULL, infoLog);
-                std::cout << "ERROR::SHADER_COMPILATION_ERROR of type: " << type << "\n" << infoLog << std::endl;
-            }
-        } else {
-            glGetProgramiv(shader, GL_LINK_STATUS, &success);
-            if (!success)
-            {
-                glGetProgramInfoLog(shader, 1024, NULL, infoLog);
-                std::cout << "ERROR::PROGRAM_LINKING_ERROR of type: " << type << "\n" << infoLog << std::endl;
-            }
-        }
-    }
-
-    Shader::Shader() {}
-}

src/LearnOpenGL/Texture2D.cpp

@@ -1,29 +0,0 @@
-#include <LearnOpenGL/Texture2D.h>
-#include <glad/glad.h>
-#include <GL/glut.h>
-
-Texture2D::Texture2D()
-        : Width(0), Height(0), InternalFormat(GL_RGB), ImageFormat(GL_RGB), WrapS(GL_REPEAT), WrapT(GL_REPEAT),
-          Filter_Min(GL_LINEAR), Filter_Max(GL_LINEAR) {
-    glGenTextures(1, &this->ID);
-}
-
-void Texture2D::Generate(unsigned int width, unsigned int height, unsigned char *data) {
-    this->Width = width;
-    this->Height = height;
-    glBindTexture(GL_TEXTURE_2D, this->ID);
-    glTexImage2D(GL_TEXTURE_2D, 0, this->InternalFormat, width, height, 0, this->ImageFormat, GL_UNSIGNED_BYTE,
-                 data);
-    // set Texture wrap and filter modes
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, this->WrapS);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, this->WrapT);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, this->Filter_Min);
-    glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, this->Filter_Max);
-
-    glBindTexture(GL_TEXTURE_2D, 0);
-}
-
-void Texture2D::Bind() const
-{
-    glBindTexture(GL_TEXTURE_2D, this->ID);
-}