From 152580faf7e7665a04be69b4a0e0538cf39c975c Mon Sep 17 00:00:00 2001
From: rtk0c <mail.tianyig@gmail.com>
Date: Sat, 17 May 2025 17:35:11 -0700
Subject: Interactive buttons

---
 src/sandbox.cpp |  5 -----
 src/ui.cpp      | 16 ++++++++++++++++
 2 files changed, 16 insertions(+), 5 deletions(-)

(limited to 'src')

diff --git a/src/sandbox.cpp b/src/sandbox.cpp
index 85a4850..d0d918c 100644
--- a/src/sandbox.cpp
+++ b/src/sandbox.cpp
@@ -35,11 +35,6 @@ Sandbox::Sandbox(int w, int h)
     , height{ h } //
 {
     memset(_bitmap.data(), 0xff, _bitmap.size() * sizeof(_bitmap[0]));
-    for (int y = 80; y <= 90; ++y) {
-        for (int x = 10; x <= 13; ++x) {
-            set_sand(x, y, Tile{ .so = Tile::SAND });
-        }
-    }
 }
 
 static void simulate_sand_tile(Sandbox& self, int x, int y) {
diff --git a/src/ui.cpp b/src/ui.cpp
index fdb9eee..f356afa 100644
--- a/src/ui.cpp
+++ b/src/ui.cpp
@@ -4,6 +4,14 @@
 
 #include <imgui.h>
 
+static void AddSand(Sandbox& sb) {
+    for (int y = 80; y <= 90; ++y) {
+        for (int x = 10; x <= 13; ++x) {
+            sb.set_sand(x, y, Tile{ .so = Tile::SAND });
+        }
+    }
+}
+
 void ShowEverything() {
     ImGui::Begin("Sandbox");
     constexpr int kWidth = 40;
@@ -13,6 +21,14 @@ void ShowEverything() {
     static OglImage gl;
     sandbox.simulate_step();
     gl.upload(reinterpret_cast<const char*>(sandbox._bitmap.data()), kWidth, kHeight);
+
+    if (ImGui::Button("Reset sandbox")) {
+        sandbox = Sandbox(40, 100);
+    }
+    if (ImGui::Button("Add sand")) {
+        AddSand(sandbox);
+    }
+
     constexpr float kScale = 4.0f;
     constexpr ImVec2 kSize(kWidth * kScale, kHeight * kScale);
     ImGui::Image(gl.as_imgui(), kSize, ImVec2(0, 1), ImVec2(1, 0));
-- 
cgit v1.2.3-70-g09d2