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#include "app.h"
#include "physics.h"
#include "res.h"
#include "ent.h"
#include "game.h"
#include "env.h"
#include "cam.h"
#include "editor.h"
#define RAYGUI_IMPLEMENTATION
#include "raygui.h"
App app = {0};
static void
app_prepare_view(void) {
if (app.scr_tex.texture.width != app.rw ||
app.scr_tex.texture.height != app.rh) {
if (app.scr_tex.id) {
UnloadRenderTexture(app.scr_tex);
}
app.scr_tex = LoadRenderTexture(app.rw, app.rh);
SetTextureFilter(app.scr_tex.texture, TEXTURE_FILTER_POINT);
}
f32 width = MAX(GetScreenWidth(), 1);
f32 height = MAX(GetScreenHeight(), 1);
f32 scale = fminf(
width / app.rw, height / app.rh);
app.scr_rec = (Rect){
.x = (width - app.rw * scale) * 0.5f,
.y = (height - app.rh * scale) * 0.5f,
.width = app.rw * scale,
.height = app.rh * scale,
};
}
Ray
app_screen_ray(Vec2 position, Camera camera) {
position.x = (position.x - app.scr_rec.x) *
app.rw / app.scr_rec.width;
position.y = (position.y - app.scr_rec.y) *
app.rh / app.scr_rec.height;
return GetScreenToWorldRayEx(
position, camera, app.rw, app.rh);
}
Vec2
app_world_to_screen(Vec3 position, Camera camera) {
Vec2 point = GetWorldToScreenEx(
position, camera, app.rw, app.rh);
return (Vec2){
app.scr_rec.x + point.x * app.scr_rec.width / app.rw,
app.scr_rec.y + point.y * app.scr_rec.height / app.rh,
};
}
static void
app_clear_depth(void) {
rlDrawRenderBatchActive();
rlEnableDepthMask();
rlColorMask(false, false, false, false);
rlClearScreenBuffers();
rlColorMask(true, true, true, true);
}
static void
app_init(void) {
SetTraceLogLevel(LOG_WARNING);
SetConfigFlags(
// FLAG_VSYNC_HINT |
FLAG_WINDOW_RESIZABLE);
InitWindow(1280, 720, "Fun Game");
app.rw = GetScreenWidth() / 2;
app.rh = GetScreenHeight() / 2;
SetExitKey(KEY_NULL);
// SetTargetFPS(60);
app.run = true;
FLAG_SET(app.flags, BIT(APP_FLAG_EDIT));
FLAG_SET(app.flags, BIT(APP_FLAG_DEBUG));
physics_init();
res_init();
env_init();
entity_system_init();
game_init();
editor_init();
cam_init();
}
static void
app_exit(void) {
UnloadRenderTexture(app.scr_tex);
editor_exit();
game_exit();
entity_system_exit();
env_exit();
res_exit();
physics_exit();
}
static void
app_loop(void) {
app.run = !WindowShouldClose();
f64 frame_start = GetTime();
app_prepare_view();
entity_system_update();
/* this is some hypothetical bullshit, probably will change */
if (app.mode == APP_MODE_EDIT) {
editor_update();
}
physics_update();
res_update();
env_update();
BeginDrawing();
ClearBackground(BLACK);
BeginTextureMode(app.scr_tex);
ClearBackground(RAYWHITE);
env_draw_sky(main_cam.cam);
BeginMode3D(main_cam.cam);
entity_system_draw_3d();
if (FLAG_CHECK(app.flags, BIT(APP_FLAG_DEBUG)) ||
FLAG_CHECK(app.flags, BIT(APP_FLAG_EDIT))) {
app_clear_depth();
rlEnableDepthTest();
editor_draw_3d();
}
EndMode3D();
EndTextureMode();
DrawTexturePro(app.scr_tex.texture,
(Rect){
0, 0,
(f32)app.scr_tex.texture.width,
-(f32)app.scr_tex.texture.height,
},
app.scr_rec, (Vec2){0}, 0, WHITE);
editor_draw_ui();
// app.frame_time_ms = (GetTime() - frame_start) * 1000.0f;
EndDrawing();
app.frame_time_ms = (GetTime() - frame_start) * 1000.0f;
}
int
main(void) {
app_init();
while (app.run) {
app_loop();
}
app_exit();
return 0;
}
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