1 files changed, 130 insertions, 0 deletions
diff --git a/sample3.cpp b/sample3.cpp
new file mode 100644
index 0000000..70c1e13
--- /dev/null
+++ b/sample3.cpp
@@ -0,0 +1,130 @@
+#include "graphics.h"
+#include <cmath>
+#include <vector>
+#include <cstdlib>
+
+struct Vec3 {
+    float x, y, z;
+};
+
+Vec3 rotateX(const Vec3& v, float angle) {
+    float c = std::cos(angle);
+    float s = std::sin(angle);
+    return { v.x, v.y * c - v.z * s, v.y * s + v.z * c };
+}
+
+Vec3 rotateY(const Vec3& v, float angle) {
+    float c = std::cos(angle);
+    float s = std::sin(angle);
+    return { v.x * c + v.z * s, v.y, -v.x * s + v.z * c };
+}
+
+Vec3 rotateZ(const Vec3& v, float angle) {
+    float c = std::cos(angle);
+    float s = std::sin(angle);
+    return { v.x * c - v.y * s, v.x * s + v.y * c, v.z };
+}
+
+void project(const Vec3& v, int& x2d, int& y2d, float width, float height, float zoom) {
+    float distance = 4.0f;
+    float z = v.z + distance;
+    float factor = zoom / z;
+
+    x2d = static_cast<int>(v.x * factor + width / 2);
+    y2d = static_cast<int>(v.y * factor + height / 2);
+}
+
+struct Star {
+    float x, y, z;
+};
+
+int main() {
+    const int width = 800;
+    const int height = 600;
+
+    WindowHandle* window = createWindow("DEMOSCENE CUBE", width, height);
+    if (!window) return -1;
+
+    std::vector<Vec3> vertices = {
+        {-1,-1,-1},{1,-1,-1},{1,1,-1},{-1,1,-1},
+        {-1,-1,1},{1,-1,1},{1,1,1},{-1,1,1}
+    };
+
+    std::vector<std::pair<int,int>> edges = {
+        {0,1},{1,2},{2,3},{3,0},
+        {4,5},{5,6},{6,7},{7,4},
+        {0,4},{1,5},{2,6},{3,7}
+    };
+
+    // Starfield
+    const int starCount = 300;
+    std::vector<Star> stars;
+    for (int i = 0; i < starCount; ++i) {
+        stars.push_back({
+            ((rand() % 200) - 100) / 10.0f,
+            ((rand() % 200) - 100) / 10.0f,
+            (rand() % 100) / 10.0f
+        });
+    }
+
+    float time = 0.0f;
+
+    while (!windowShouldClose(window)) {
+        pollEvents(window);
+
+        // Pulsing background
+        int bg = static_cast<int>((std::sin(time * 0.5f) + 1.0f) * 20);
+        clearScreen(window, Color(bg, 0, bg + 20));
+
+        // --- STARFIELD ---
+        for (auto& star : stars) {
+            star.z -= 0.05f;
+            if (star.z <= 0.1f)
+                star.z = 10.0f;
+
+            int sx = static_cast<int>((star.x / star.z) * 200 + width/2);
+            int sy = static_cast<int>((star.y / star.z) * 200 + height/2);
+
+            if (sx >= 0 && sx < width && sy >= 0 && sy < height)
+                drawPixel(window, sx, sy, Color(255,255,255));
+        }
+
+        // Color cycling (rainbow)
+        int r = static_cast<int>((std::sin(time) + 1) * 127);
+        int g = static_cast<int>((std::sin(time + 2) + 1) * 127);
+        int b = static_cast<int>((std::sin(time + 4) + 1) * 127);
+
+        float zoom = 150.0f + std::sin(time) * 50.0f;
+
+        // --- MULTI-CUBE EFFECT ---
+        for (int c = 0; c < 3; ++c) {
+
+            float offset = c * 2.5f - 2.5f;
+
+            std::vector<Vec3> transformed;
+
+            for (const auto& v : vertices) {
+                Vec3 r3 = rotateX(v, time + c);
+                r3 = rotateY(r3, time * 0.7f + c);
+                r3 = rotateZ(r3, time * 0.5f);
+                r3.x += offset;
+                transformed.push_back(r3);
+            }
+
+            for (const auto& edge : edges) {
+                int x1, y1, x2, y2;
+                project(transformed[edge.first], x1, y1, width, height, zoom);
+                project(transformed[edge.second], x2, y2, width, height, zoom);
+                drawLine(window, x1, y1, x2, y2, Color(r, g, b));
+            }
+        }
+
+        swapBuffers(window);
+
+        time += 0.02f;
+        delay(16);
+    }
+
+    destroyWindow(window);
+    return 0;
+}