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#import "Basic";
#import "Window_Creation";
Simp :: #import "Simp";
Input :: #import "Input";
Unicode :: #import "Unicode";
#load "widget_interface.jai";
#load "menu_app.jai";
#load "apps/example_app.jai";
#load "apps/maze_app.jai";
#load "ui_panel.jai";
#load "debug_overlay.jai";
// Global reference to active app state
active_app: *Widget_State;
// The different apps available
menu_state: Widget_State;
example_state: Widget_State;
maze_state: Widget_State;
window: Window_Type;
window_width : s32 = 1920;
window_height : s32 = 1080;
// silly
FRAMES :: 32_768;
frame_times : [FRAMES] float;
frame_times_sum: float;
frame_times_cursor: int;
FONT_HEIGHT :: 32;
switch_app :: (new_app: *Widget_State) {
active_app = new_app;
}
main :: () {
window = create_window(window_width, window_height, "Jai Sandbox");
Simp.set_render_target(window);
// Initialize all apps
init_menu_app(*menu_state);
init_example_widget(*example_state);
init_maze_app(*maze_state);
text_edit: [..] u8;
held_keys: String_Builder;
if menu_state.init then menu_state.init(*menu_state);
if example_state.init then example_state.init(*example_state);
if maze_state.init then maze_state.init(*maze_state);
the_font := (cast(*Menu_Data) menu_state.data).font;
active_app = *menu_state;
quit := false;
last_time := seconds_since_init();
sub_frames := false;
while !quit {
// FIXME lazy FPS cap
sleep_milliseconds(10);
Input.update_window_events();
for Input.get_window_resizes() {
Simp.update_window(it.window);
if it.window == window {
window_width = it.width;
window_height = it.height;
}
}
for Input.events_this_frame {
if it.type == {
case .QUIT;
quit = true;
case .KEYBOARD;
if it.key_pressed == 0 continue;
// If escape is pressed, toggle back to menu
if it.key_code == .ESCAPE {
if active_app != *menu_state {
switch_app(*menu_state);
} else {
quit = true; // Escape on menu quits
}
}
if it.key_pressed && it.key_code == .BACKSPACE {
// @FixMe this works fine for English characters since most of that character set
// is one-byte in UTF8, but will not work correctly for many other language characters.
if text_edit.count then pop(*text_edit);
}
case .TEXT_INPUT;
value := it.utf32;
str := Unicode.character_utf32_to_utf8(value);
for 0..str.count-1 {
array_add(*text_edit, str[it]);
}
free(str);
}
}
for Input.input_button_states {
if it & .DOWN {
if it_index >= 0x20 && it_index < 0x7F {
value: u8 = cast(u8) it_index;
str: string;
str.data = *value;
str.count = 1;
append(*held_keys, str);
} else {
print_to_builder(*held_keys, "% ", cast(Input.Key_Code) it_index);
}
}
}
held_keys_text := builder_to_string(*held_keys);
defer free(held_keys_text);
now := seconds_since_init();
dt := cast(float)(now - last_time);
last_time = now;
if sub_frames {
frame_times_sum -= frame_times[frame_times_cursor];
}
frame_times_sum += dt;
frame_times[frame_times_cursor] = dt;
frame_times_cursor += 1;
if frame_times_cursor >= FRAMES {
sub_frames = true;
frame_times_cursor = 0;
}
fps := 0.0;
if sub_frames {
fps = FRAMES / frame_times_sum;
} else {
fps = frame_times_cursor / frame_times_sum;
}
text_edit_text: string;
text_edit_text.data = text_edit.data;
text_edit_text.count = text_edit.count;
// Update active app
if active_app && active_app.update {
active_app.update(active_app, dt);
}
ui_occludes := ui_handle_input(active_app);
debug_add_value("UI occludes: %", ui_occludes);
active_app.handle_input(active_app, ui_occludes);
// Render active app
if active_app && active_app.render {
active_app.render(active_app);
}
mouse_x, mouse_y, _ := get_mouse_pointer_position(window, true);
// overlay
debug_add_value("FPS: %", fps);
debug_add_value("frame_times_sum: %", frame_times_sum);
debug_add_value("frame_times_cursor: %", frame_times_cursor);
debug_add_value("Window Size: %, %", window_width, window_height);
debug_add_value("Text Input: %", text_edit_text);
debug_add_value("Held keys: %", held_keys_text);
debug_add_value("mouse_pos: %, %", mouse_x, mouse_y);
// Set up debug overlay elements
render_debug_overlay(the_font);
// Render global UI panels (on top of active app)
ui_render(active_app);
clear_debug_overlay();
finish_frame();
}
if menu_state.shutdown then menu_state.shutdown(*menu_state);
if example_state.shutdown then example_state.shutdown(*example_state);
}
draw_text :: (font: *Simp.Dynamic_Font, color: Vector4, x: int, y: int, fmt: string, args: .. Any) {
assert(font != null);
builder: String_Builder;
print_to_builder(*builder, fmt, ..args);
text := builder_to_string(*builder);
defer free(text);
Simp.draw_text(font, x, y, text, color);
}
finish_frame :: () {
Simp.swap_buffers(window);
}
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