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#include "WebglContext.h"
#include "MainLoop.h"
#include "Renderer2d.h"
#include "mathlib.h"
#include "theme.h"
#include "types.h"
#include "summer/SummerTheme.h"
#include "autumn/AutumnTheme.hpp"
#include "spring/SpringTheme.hpp"
#include "winter/WinterTheme.hpp"
#include <cstdio>
#include <emscripten/fetch.h>
void load(Theme theme);
void unload();
void update(f32 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);
EM_BOOL selectSpring(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData);
EM_BOOL selectSummer(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData);
WebglContext context;
Renderer2d renderer2d;
MainLoop mainLoop;
ThemeType type;
Theme* active_theme;
AutumnTheme* autumnTheme;
WinterTheme* winterTheme;
SpringTheme* springTheme;
SummerTheme* summerTheme;
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);
emscripten_set_click_callback("#theme_button_spring", NULL, false, selectSpring);
emscripten_set_click_callback("#theme_button_summer", NULL, false, selectSummer);
return 0;
}
// -- Scene loading, updating, and unloading logic
void load(ThemeType theme) {
if (type == theme) {
printf("This theme is already active.\n");
return;
}
unload(); // Try and unload before we load, so that we start fresh
type = theme;
mainLoop.run(update);
switch (type) {
case ThemeType::Autumn:
renderer2d.load(&context);
active_theme = new AutumnTheme(&renderer2d);
break;
case ThemeType::Winter:
renderer2d.load(&context);
active_theme = new WinterTheme(&renderer2d);
break;
case ThemeType::Spring:
active_theme = new SpringTheme(&context);
break;
case ThemeType::Summer:
active_theme = new SummerTheme(&renderer2d, &context);
break;
default:
break;
}
}
void update(f32 dtSeconds, void* userData) {
active_theme->update(dtSeconds);
active_theme->render();
}
void unload() {
delete active_theme;
type = ThemeType::Default;
if (mainLoop.isRunning) {
mainLoop.stop();
renderer2d.unload();
}
}
// -- HTML5 callbacks
EM_BOOL selectNone(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData) {
printf("Default theme selected\n");
unload();
return true;
}
EM_BOOL selectAutumn(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData) {
printf("Autumn theme selected\n");
load(ThemeType::Autumn);
return true;
}
EM_BOOL selectWinter(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData) {
printf("Winter theme selected\n");
load(ThemeType::Winter);
return true;
}
EM_BOOL selectSpring(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData) {
printf("Spring theme selected\n");
load(ThemeType::Spring);
return true;
}
EM_BOOL selectSummer(int eventType, const EmscriptenMouseEvent* mouseEvent, void* userData) {
printf("Summer theme selected\n");
load(ThemeType::Summer);
return true;
}
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