feature: improved summer scene

1 files changed, 43 insertions, 0 deletions

diff --git a/themes/src/summer/sky_model.h b/themes/src/summer/sky_model.h
new file mode 100644
index 0000000..d957f05
--- /dev/null
+++ b/themes/src/summer/sky_model.h
@@ -0,0 +1,43 @@
+#ifndef SKY_MODEL_H
+#define SKY_MODEL_H
+
+#include "../shader.h"
+#include "../types.h"
+
+struct WebglContext;
+
+/// A full-screen sky background. Renders a mid-afternoon gradient (from the
+/// water horizon up to the top of the screen) and sparse, wispy procedural
+/// clouds that shrink toward the horizon. Standalone: owns its own shader and
+/// a two-triangle full-screen quad, drawn before the sun and water.
+class SkyModel {
+public:
+    SkyModel();
+    ~SkyModel();
+
+    void load(WebglContext* context);
+    void update(f32 dtSeconds);
+    void render();
+    void unload();
+
+    /// Screen-space y (0..1) of the water horizon, where the gradient starts.
+    f32 horizon = 0.5f;
+
+private:
+    WebglContext* context = nullptr;
+    Shader shader = 0;
+    u32 vao = 0;
+    u32 vbo = 0;
+    f32 elapsedTime = 0.f;
+
+    struct {
+        i32 position = -1;
+    } attributes;
+
+    struct {
+        i32 time = -1;
+        i32 horizon = -1;
+    } uniforms;
+};
+
+#endif // SKY_MODEL_H