5 files changed, 107 insertions, 4 deletions

diff --git a/themes/Renderer2d.cpp b/themes/Renderer2d.cpp
index 2750557..a58ad86 100644
--- a/themes/Renderer2d.cpp
+++ b/themes/Renderer2d.cpp
@@ -27,12 +27,11 @@ const char* renderer2dFragmentShader =
 EM_BOOL onScreenSizeChanged(int eventType, const EmscriptenUiEvent *uiEvent, void *userData) {
     Renderer2d* renderer = (Renderer2d*)userData;
     
-    renderer->context->width = uiEvent->documentBodyClientWidth;
-    renderer->context->height = uiEvent->documentBodyClientHeight;
-	EMSCRIPTEN_RESULT result = emscripten_set_canvas_element_size( renderer->context->query, renderer->context->width, renderer->context->height);
+	EMSCRIPTEN_RESULT result = emscripten_set_canvas_element_size( renderer->context->query, uiEvent->documentBodyClientWidth, uiEvent->documentBodyClientHeight);
 	if (result != EMSCRIPTEN_RESULT_SUCCESS) {
 		printf("Failed to resize element at query: %s\n", renderer->context->query);
 	}
+	renderer->projection = Mat4x4().getOrthographicMatrix(0, renderer->context->width, 0, renderer->context->height);
 
     return true;
 }
diff --git a/themes/Snowflake.cpp b/themes/Snowflake.cpp
new file mode 100644
index 0000000..54654f0
--- /dev/null
+++ b/themes/Snowflake.cpp
@@ -0,0 +1,26 @@
+#include "Snowflake.h"
+
+void SnowflakeParticleRenderer::load(SnowflakeLoadParameters params, Renderer2d* renderer) {
+	updateData = new SnowflakeUpdateData[maxSnowflakes];
+    renderData = new SnowflakeRenderData[maxSnowflakes];
+	activeIndex = 0;
+
+	for (int32 s = 0; s < maxSnowflakes; s++) {
+		auto ud = &updateData[s];
+		auto rd = &renderData[s];
+
+		ud->velocity = params->flakeV0;
+	}
+}
+
+void SnowflakeParticleRenderer::update(float32 dtSeconds) {
+	
+}
+
+void SnowflakeParticleRenderer::render(Renderer2d* renderer) {
+
+}
+
+void SnowflakeParticleRenderer::unload() {
+
+}
diff --git a/themes/Snowflake.h b/themes/Snowflake.h
new file mode 100644
index 0000000..09b05db
--- /dev/null
+++ b/themes/Snowflake.h
@@ -0,0 +1,36 @@
+#include "types.h"
+#include "mathlib.h"
+
+struct Renderer2d;
+struct SnowflakeUpdateData;
+struct SnowflakeRenderData;
+
+struct SnowflakeLoadParameters {
+	int32 maxSnowflakes = 10000;
+	float32 rateOfSnowfall = 0.1f;
+    Vector3 flakeV0 = { 0, 1, 0 };
+	float32 flakeSize = 5.f;
+	float32 flakeSizeDeviation = 1.f;
+	Vector4 snowColor = { 0.8, 0.8, 0.8, 1.0 };
+};
+
+struct SnowflakeParticleRenderer {
+	int32 activeIndex = 0;
+    Vector3 windSpeed = { 0, 0, 0 };
+	SnowflakeUpdateData* updateData;
+	SnowflakeRenderData* renderData;
+	
+	void load(SnowflakeLoadParameters params, Renderer2d* renderer);o
+	void update(float32 dtSeconds);
+	void render(Renderer2d* renderer);
+	void unload();
+};
+
+struct SnowflakeUpdateData {
+	Vector3 velocity;
+	Vector3 position;
+};
+
+struct SnowflakeRenderData {
+	
+};
diff --git a/themes/dist/output.wasm b/themes/dist/output.wasm
index 329cc80..495ea67 100755
--- a/themes/dist/output.wasm
+++ b/themes/dist/output.wasm
diff --git a/themes/main.cpp b/themes/main.cpp
index 2d63e00..8ca7fc4 100644
--- a/themes/main.cpp
+++ b/themes/main.cpp
@@ -8,7 +8,8 @@
 
 enum Theme {
 	Default = 0,
-    Autumn
+    Autumn,
+	Winter
 };
 
 struct AutumnTheme {
@@ -21,22 +22,32 @@ struct AutumnTheme {
 	void unload();
 };
 
+struct WinterTheme {
+	void load(Renderer2d* renderer);
+	void update(float32 dtSeconds);
+	void render(Renderer2d* renderer);
+	void unload();
+};
+
 void load(Theme theme);
 void unload();
 void update(float32 dtSeconds, void* userData);
 EM_BOOL selectNone(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData);
 EM_BOOL selectAutumn(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData);
+EM_BOOL selectWinter(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData);
 
 WebglContext context;
 Renderer2d renderer;
 MainLoop mainLoop;
 Theme activeTheme = Theme::Default;
 AutumnTheme autumnTheme;
+WinterTheme winterTheme;
 
 int main() {
 	context.init("#theme_canvas");
 	emscripten_set_click_callback("#theme_button_default", NULL, false, selectNone);
 	emscripten_set_click_callback("#theme_button_autumn", NULL, false, selectAutumn);
+	emscripten_set_click_callback("#theme_button_winter", NULL, false, selectWinter);
 	
 	return 0;
 }
@@ -58,6 +69,9 @@ void load(Theme theme) {
 	case Theme::Autumn:
 		autumnTheme.load(&renderer);
 		break;
+	case Theme::Winter:
+		winterTheme.load(&renderer);
+		break;
 	default:
 		break;
 	}
@@ -69,6 +83,9 @@ void update(float32 dtSeconds, void* userData) {
 	case Theme::Autumn:
 		autumnTheme.update(dtSeconds);
 		break;
+	case Theme::Winter:
+		winterTheme.update(dtSeconds);
+		break;
 	default:
 		break;
 	}
@@ -79,6 +96,9 @@ void update(float32 dtSeconds, void* userData) {
 	case Theme::Autumn:
 		autumnTheme.render(&renderer);
 		break;
+	case Theme::Winter:
+		winterTheme.render(&renderer);
+		break;
 	default:
 		break;
 	}
@@ -89,6 +109,9 @@ void unload() {
 	case Theme::Autumn:
 		autumnTheme.unload();
 		break;
+	case Theme::Winter:
+		winterTheme.unload();
+		break;
 	default:
 		break;
 	}
@@ -113,6 +136,12 @@ EM_BOOL selectAutumn(int eventType, const EmscriptenMouseEvent* mouseEvent, void
 	return true;
 }
 
+EM_BOOL selectWinter(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData) {
+	printf("Winter theme selected\n");
+	load(Theme::Winter);
+	return true;
+}
+
 // -- Autumn theme
 void AutumnTheme::load(Renderer2d* renderer) {
     renderer->clearColor = Vector4(252, 210, 153, 255).toNormalizedColor();
@@ -135,3 +164,16 @@ void AutumnTheme::unload()  {
 	leafParticles.unload();
 }
 
+// -- Winter theme
+void WinterTheme::load(Renderer2d* renderer) {
+    renderer->clearColor = Vector4(200, 229, 239, 255).toNormalizedColor();
+}
+
+void WinterTheme::update(float32 dtSeconds) {
+}
+
+void WinterTheme::render(Renderer2d* renderer) {
+}
+
+void WinterTheme::unload()  {
+}