1 files changed, 82 insertions, 0 deletions
diff --git a/themes/src/summer/summer_theme.cpp b/themes/src/summer/summer_theme.cpp
new file mode 100644
index 0000000..6935ad1
--- /dev/null
+++ b/themes/src/summer/summer_theme.cpp
@@ -0,0 +1,82 @@
+#include "summer_theme.h"
+#include "../renderer_2d.h"
+#include "../list.h"
+#include "../mathlib.h"
+#include "../shaders/sun_frag.h"
+#include "../shaders/sun_vert.h"
+#include <vector>
+
+SummerTheme::SummerTheme(WebglContext* context)
+{
+    renderer.load(context);
+    load(context);
+}
+
+SummerTheme::~SummerTheme()
+{
+    unload();
+}
+
+void SummerTheme::load(WebglContext* context) {
+    renderer.load(context, shader_sun_vert, shader_sun_frag);
+	renderer.clearColor = Vector4(0, 181, 286, 255.f).toNormalizedColor();
+	sun.sectors = 180;
+	sun.radius = renderer.context->width / 4.f;
+	sun.load(&renderer);
+}
+
+void SummerTheme::update(f32 dtSeconds) {
+	sun.update(dtSeconds);
+}
+
+void SummerTheme::render() {
+    renderer.render();
+	sun.render(&renderer);
+}
+
+void SummerTheme::unload() {
+	sun.unload();
+}
+
+void Sun::load(Renderer2d* renderer) {
+	matte::List<Vertex2D> vertices;
+	matte::List<u32> indices;
+	Vector4 sunColor = Vector4(249, 215, 28, 255).toNormalizedColor();
+	vertices.add({ Vector2(0, 0), sunColor, Mat4x4() });
+
+    f32 radiansPerSector = (2.f * PI) / sectors;
+	for (i32 i = 0; i <= sectors; i++) {
+		f32 radians = radiansPerSector * i;
+		f32 cosAngle = cosf(radians);
+		f32 sinAngle = sinf(radians);
+		Vector2 vertex = Vector2(radius * cosAngle, radius * sinAngle);
+		vertices.add({ vertex, sunColor, Mat4x4() });
+
+		u32 first = i;
+		u32 second = 0;
+		u32 third = i + 1;
+		indices.add(first);
+		indices.add(second);
+		indices.add(third);
+	}
+	
+	mesh.load(&vertices.data[0], vertices.numElements, &indices.data[0], indices.numElements, renderer);
+	mesh.model = Mat4x4().translateByVec2(Vector2(renderer->context->width / 2.f, renderer->context->height / 2.f));
+	vertices.deallocate();
+	indices.deallocate();
+}
+
+void Sun::update(f32 dtSeconds) {
+
+}
+
+void Sun::render(Renderer2d* renderer) {
+	setShaderMat4(renderer->uniforms.model, mesh.model);
+	glBindVertexArray(mesh.vao);
+    glDrawElements(GL_TRIANGLES, mesh.numIndices, GL_UNSIGNED_INT, 0);
+    glBindVertexArray(0);
+}
+
+void Sun::unload() {
+	mesh.unload();
+}