switching to cmake; alyson setup

alyson/src/alyson.cpp

@@ -0,0 +1,43 @@
+
+#include <alyson.hpp>
+#include <raylib.h>
+#include <iostream>
+#include <string>
+#include <rlyson.h>
+
+#define WINDOW_TITLE "Alyson Engine"
+
+int main(int argc, char *argv[]) {
+
+    SetTargetFPS(60);
+
+    InitWindow(900, 500, WINDOW_TITLE " -- 900x500");
+
+    
+    Texture2D logo = LoadTexture(MANGLE_RES_PATH("Raylib_logo.png"));
+
+    std::cout << "alyson: init" << std::endl;
+
+    int g = init();
+    if(g != 0) {
+        std::cout << "alyson: init failed with error code " << g << std::endl;
+        return g;
+    }
+
+    while (!WindowShouldClose()) {
+        if (IsWindowResized()) {
+            SetWindowTitle((std::string(WINDOW_TITLE) + " -- " + std::to_string(GetScreenWidth()) + "x" + std::to_string(GetScreenHeight())).c_str());
+        }
+
+        BeginDrawing();
+            DrawTexture(logo, GetScreenWidth() / 2 - logo.width / 2, GetScreenHeight() / 2 - logo.height / 2, WHITE);
+            DrawTextFull(GetFontDefault(), WINDOW_TITLE, { GetScreenWidth() / 2.f, GetScreenHeight() - 60.f }, TEXT_ORIENTATION_CENTER, 40.f, 0.f, 0.f, WHITE);
+
+            ClearBackground(RAYWHITE);
+        EndDrawing();
+    }
+
+    UnloadTexture(logo);
+    CloseWindow();
+    return 0;
+}

alyson/src/rlyson.c

@@ -0,0 +1,28 @@
+#include <rlyson.h>
+
+void DrawTextFull(
+    Font                font,
+    const char          *text,
+    Vector2             origin,
+    text_orientation_t  orientation, 
+    float               fontSize, 
+    float               spacing, 
+    float               lineSpacing, 
+    Color               tint
+    ) 
+{
+    Vector2 textSize = MeasureTextEx(font, text, fontSize, spacing);
+
+    switch (orientation) {
+    case TEXT_ORIENTATION_LEFT:
+        origin.x -= textSize.x;
+        break;
+    case TEXT_ORIENTATION_RIGHT:
+        origin.x += textSize.x;
+        break;
+    case TEXT_ORIENTATION_CENTER:
+        origin.x -= textSize.x / 2;
+        break;
+    }
+    DrawTextPro(font, text, textSize, origin, 0, spacing, lineSpacing, tint);
+}