add demo version

.gitignore

@@ -2,6 +2,7 @@
 cmake-build-*
 third_party/*.gz
 build
+build-demo
 wip
 todo.txt
 sdk

CMakeLists.txt

@@ -4,6 +4,11 @@ set(CMAKE_C_STANDARD 99)
 set(CMAKE_CXX_STANDARD 17)
 OPTION(OPENMP "Use OpenMP for thread detection")
 OPTION(STEAM "Steam support")
+OPTION(DEMO "Demo Version")
+
+IF (DEMO)
+  add_compile_definitions(DEMO_VERSION=1)
+ENDIF()
 
 IF (OPENMP)
   find_package(OpenMP REQUIRED)

src/clip_api.cpp

@@ -5,6 +5,12 @@
 #include "img.h"
 
 Image ImageFromClipboard() {
+#ifdef DEMO_VERSION
+  {
+    Image r = {0, 0, 0, 0, 0};
+    return r;
+  }
+#endif
   clip::image img;
   if (!clip::get_image(img)) {
     // std::cout << "Error getting image from clipboard\n";
@@ -51,6 +57,9 @@ Image ImageFromClipboard() {
 }
 
 void ImageToClipboard(Image img) {
+#ifdef DEMO_VERSION
+  return;
+#endif
   clip::image_spec spec;
   spec.width = img.width;
   spec.height = img.height;

src/defs.h

@@ -7,7 +7,7 @@
 #define COLOR_EQ(u, v) \
   (((u).r == (v).r) && ((u).g == (v).g) && ((u).b == (v).b) && ((u).a == (v).a))
 
-#ifndef WEB
+#ifndef DEMO_VERSION
 // Maximum image size is 8k.
 // For images bigger than that, a dedicated exporter/reader is necessary
 // (stb_image blocks at 8k by default)
@@ -38,9 +38,6 @@
 #define rect_start ((Rectangle){16 * 0, 16 * 1, 13, 13})
 #define rect_stop ((Rectangle){16 * 2, 16 * 1, 13, 13})
 
-// Icon of the sandbox challenge for the WEB version, which doesn't have lua.
-#define rect_sandbox ((Rectangle){368, 80, 33, 33})
-
 // Logo of CircuitArtist (for About page)
 #define rect_logo ((Rectangle){160, 80, 158, 67})
 

src/main.c

@@ -4,10 +4,6 @@
 #include <omp.h>
 #endif
 
-#if defined(PLATFORM_WEB)
-#include <emscripten/emscripten.h>
-#endif
-
 #ifdef WIN32
 #ifndef CA_SHOW_CONSOLE
 // This pragma hides the console app terminal in window.
@@ -16,8 +12,6 @@
 #endif
 #endif
 
-static void WebUpdateDrawFrame(void);  // Update and Draw one frame
-
 static Ui _ui = {0};
 
 int main() {
@@ -31,9 +25,6 @@ int main() {
   omp_set_num_threads(nt);
 #endif
 
-#if defined(PLATFORM_WEB)
-  emscripten_set_main_loop(web_update_draw_frame, 0, 1);
-#else
   SetExitKey(0);  // Avoids window closing with escape key
   SetTargetFPS(60);
   SetTraceLogLevel(LOG_ERROR);
@@ -43,10 +34,7 @@ int main() {
       break;
     }
   }
-#endif
   UiUnload(&_ui);
   CloseWindow();
   return 0;
 }
-
-void WebUpdateDrawFrame() { UiUpdateFrame(&_ui); }

src/paint.c

@@ -1121,7 +1121,13 @@ void PaintHandleCameraMovement(Paint* ca) {
   }
 }
 
-bool PaintGetIsDirty(Paint* ca) { return HistGetIsDirty(&ca->h); }
+bool PaintGetIsDirty(Paint* ca) {
+#ifdef DEMO_VERSION
+  return false;
+#else
+  return HistGetIsDirty(&ca->h);
+#endif
+}
 
 Image PaintGetSelBuffer(Paint* ca) { return HistGetSelBuffer(&ca->h); }
 

src/w_about.c

@@ -27,10 +27,6 @@ static void AboutUpdateLayout() {
   int total_w = bw + 2 * 2;
   int x = (sw - total_w) / 2;
   int bh = 9 * 35 * s;
-#ifdef WEB
-  // Making it smaller for the web version
-  bh = 4 * 35 * 2;
-#endif
   int total_h = (bh + 35 * 1 + 35 * 1);
   int pad = 10 * s;
   while (total_h + 2 * pad + 10 > sh) {

src/w_main.c

@@ -150,15 +150,11 @@ void MainInit(Ui* ui) {
   C.header_size = 24 * ui->scale;
   C.bottom_size = 3 * 17 * 1 * ui->scale - 6 * ui->scale;
 
-#ifdef WEB
-  C.btn_challenge.disabled = true;
-  C.btn_tutorial.disabled = true;
-  C.btn_new.disabled = true;
+#ifdef DEMO_VERSION
   C.btn_save.disabled = true;
   C.btn_saveas.disabled = true;
-  C.btn_open.disabled = true;
-  C.btn_exit.disabled = true;
 #endif
+
   PaintLoad(&C.ca);
   LevelOptions* opt = ApiGetLevelOptions();
   if (!opt->startup_image_path) {
@@ -198,17 +194,18 @@ void MainUpdate(Ui* ui) {
 
 void MainUpdateControls(Ui* ui) {
   MainUpdateHud(ui);
-#ifndef WEB
   if (IsKeyPressed(KEY_TAB)) {
     TutorialOpen(ui);
   }
-#endif
   if (IsKeyPressed(KEY_F10)) {
     ui->debug = !ui->debug;
   }
+
+#ifndef DEMO_VERSION
   if (IsKeyPressed(KEY_S) && IsKeyDown(KEY_LEFT_CONTROL)) {
     MainOnSaveClick(ui, false);
   }
+#endif
 
   bool mouse_on_target = MainGetIsCursorInTargeTimage() && ui->hit_count == 0;
   C.mouse_on_target = mouse_on_target;
@@ -376,10 +373,8 @@ void MainUpdateHud(Ui* ui) {
   if (BtnUpdate(&C.btn_clockopt[5], ui)) PaintSetClockSpeed(&C.ca, 5);
 
   if (BtnUpdate(&C.btn_simu, ui)) PaintToggleSimu(&C.ca);
-#ifndef WEB
   if (BtnUpdate(&C.btn_challenge, ui)) LevelsOpen(ui);
   if (BtnUpdate(&C.btn_tutorial, ui)) TutorialOpen(ui);
-#endif
 
   Vector2 pos = GetMousePosition();
   if (RectHover(C.fg_color_rect, pos)) {
@@ -457,6 +452,17 @@ void MainDraw(Ui* ui) {
         sprintf(txt, "Drag to resize");
       }
       FontDrawTexture(txt, 0, 0, WHITE);
+
+#ifdef DEMO_VERSION
+      const char msg1[] = "Max image size in demo version is 512x512";
+      const char msg2[] = "Full version available on Steam.";
+      rlTranslatef(0, -14, 0);
+      FontDrawTexture(msg2, 2, 2, BLACK);
+      FontDrawTexture(msg2, 0, 0, RED);
+      rlTranslatef(0, -14, 0);
+      FontDrawTexture(msg1, 2, 2, BLACK);
+      FontDrawTexture(msg1, 0, 0, RED);
+#endif
       rlPopMatrix();
       EndScissorMode();
     }
@@ -488,7 +494,6 @@ void MainDraw(Ui* ui) {
   bool simu_on = PaintGetMode(&C.ca) == MODE_SIMU;
   BtnDrawIcon(&C.btn_simu, bscale, ui->sprites,
               simu_on ? rect_stop : rect_start);
-#ifndef WEB
   // {
   //   int x = C.btn_challenge.hitbox.x;
   //   int y = C.btn_challenge.hitbox.y - 10 * 2;
@@ -506,10 +511,6 @@ void MainDraw(Ui* ui) {
     sprintf(txt, "Lvl: %s", co->options[cd->ilevel].name);
     BtnDrawText(&C.btn_challenge, bscale, txt);
   }
-
-#else
-  BtnDrawIcon(&C.btn_challenge, bscale, ui->sprites, rect_sandbox);
-#endif
   BtnDrawText(&C.btn_tutorial, bscale, "Tutorial");
 
   bool color_disabled = PaintGetMode(&C.ca) != MODE_EDIT;
@@ -578,13 +579,23 @@ void MainDraw(Ui* ui) {
   if (ui->window == WINDOW_MAIN) {
     BtnDrawLegend(&C.btn_new, bscale, "New Image");
     BtnDrawLegend(&C.btn_open, bscale, "Load Image");
-    BtnDrawLegend(&C.btn_save, bscale, "Save Image (C-S)");
-    BtnDrawLegend(&C.btn_saveas, bscale, "Save Image As...");
     BtnDrawLegend(&C.btn_about, bscale, "About Circuit Artist");
     BtnDrawLegend(&C.btn_exit, bscale, "Exit");
-
     BtnDrawLegend(&C.btn_sel_open, bscale, "Load Selection from Image");
+
+#ifndef DEMO_VERSION
+    BtnDrawLegend(&C.btn_save, bscale, "Save Image (C-S)");
+    BtnDrawLegend(&C.btn_saveas, bscale, "Save Image As...");
     BtnDrawLegend(&C.btn_sel_save, bscale, "Save Selection as Image");
+#else
+    BtnDrawLegend(&C.btn_save, bscale,
+                  "Save Image (C-S)\n`Not available in demo version.`");
+    BtnDrawLegend(&C.btn_saveas, bscale,
+                  "Save Image As...\n`Not available in demo version.`");
+    BtnDrawLegend(&C.btn_sel_save, bscale,
+                  "Save Selection as Image\n`Not available in demo version.`");
+
+#endif
 
     BtnDrawLegend(
         &C.btn_simu, bscale,
@@ -931,9 +942,15 @@ void MainDrawStatusBar(Ui* ui) {
   sprintf(txt, "[level] %s", co->options[cd->ilevel].name);
   FontDrawTextureOutlined(txt, xc, yc7, tc, bg);
 
+#ifndef DEMO_VERSION
   const char* fname = GetFileName(MainGetFilename());
   sprintf(txt, "[img] %s", fname);
   FontDrawTextureOutlined(txt, xc, yc8, tc, bg);
+#else
+  const char* msg = "[Demo] Full version available on Steam.";
+  FontDrawTextureOutlined(msg, xc, yc8, tc, RED);
+#endif
+
   Image img = PaintGetEditImage(&C.ca);
   sprintf(txt, "[img] w: %d h: %d", img.width, img.height);
   FontDrawTextureOutlined(txt, xc, yc9, tc, bg);
@@ -1032,6 +1049,9 @@ void MainUpdateWidgets() {
 
   C.btn_sel_open.disabled = ned;
   C.btn_sel_save.disabled = !has_sel || ned;
+#ifdef DEMO_VERSION
+  C.btn_sel_save.disabled = true;
+#endif
 
   C.btn_rotate.hidden = (tool != TOOL_SEL) || ned;
   C.btn_flipv.hidden = (tool != TOOL_SEL) || ned;