feat: tile creation + editor panel

1 files changed, 133 insertions, 0 deletions

diff --git a/src/editor.cpp b/src/editor.cpp
new file mode 100644
index 0000000..b78ec2a
--- /dev/null
+++ b/src/editor.cpp
@@ -0,0 +1,133 @@
+#include "editor.hpp"
+
+#include <SFML/Graphics/RenderWindow.hpp>
+#include <SFML/System/Vector2.hpp>
+#include <optional>
+#include <string>
+
+#include "imgui-SFML.h"
+#include "imgui.h"
+#include "nfd.h"
+#include "nfd.hpp"
+#include "tileset.hpp"
+
+namespace silly::editor {
+  void Editor::update(const sf::RenderWindow &window) {
+    if (sf::Mouse::isButtonPressed(sf::Mouse::Button::Left) ||
+        sf::Mouse::isButtonPressed(sf::Mouse::Button::Right)) {
+      sf::Vector2i mousePosition = sf::Mouse::getPosition(window);
+
+      for (int x = 0; x < this->floor.get_width(); x++) {
+        for (int y = 0; y < this->floor.get_height(); y++) {
+          int rx = x * 16, ry = y * 16;
+
+          if ((rx < mousePosition.x && mousePosition.x < rx + 16) &&
+              (ry < mousePosition.y && mousePosition.y < ry + 16)) {
+            sf::Vector2i pos(x, y);
+
+            if (sf::Mouse::isButtonPressed(sf::Mouse::Button::Left)) {
+              this->floor.place_tile(pos);
+            } else if (sf::Mouse::isButtonPressed(sf::Mouse::Button::Right)) {
+              this->floor.remove_tile(pos);
+            }
+          }
+        }
+      }
+    }
+  }
+
+  void Editor::render(const sf::RenderWindow &window) {
+    sf::Vector2u windowSize = window.getSize();
+
+    int width = 400;
+    int height = windowSize.y;
+
+    int x = windowSize.x - width;
+    int y = 0;
+
+    ImGui::SetNextWindowPos(ImVec2(x, y));
+    ImGui::SetNextWindowSize(ImVec2(width, height));
+    ImGui::Begin("Editor", NULL,
+                 ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize |
+                     ImGuiWindowFlags_NoCollapse | ImGuiWindowFlags_NoTitleBar);
+
+    // --- "CREATING A NEW TILE" WINDOW ---
+    if (ImGui::Button("Add tile") && !this->newTileState.has_value()) {
+      this->newTileState =
+          std::make_optional((NewTileState){"", {}, TILE_FLOOR});
+    }
+
+    if (this->newTileState.has_value()) {
+      NewTileState &state = this->newTileState.value();
+
+      ImGui::SetNextWindowPos(
+          ImVec2(windowSize.x / 2.0f - 200, windowSize.y / 2.0f - 250));
+      ImGui::SetNextWindowSize(ImVec2(400, 500));
+      ImGui::Begin("Creating a new tile", NULL,
+                   ImGuiWindowFlags_NoMove | ImGuiWindowFlags_NoResize);
+
+      // -- Tile type --
+      ImGui::Text("Tile type");
+
+      if (ImGui::RadioButton("Floor", state.type == TILE_FLOOR)) {
+        state.type = TILE_FLOOR;
+      }
+
+      ImGui::SameLine();
+
+      if (ImGui::RadioButton("Wall", state.type == TILE_WALL)) {
+        state.type = TILE_WALL;
+      }
+
+      // -- Texture loading --
+      ImGui::Text("2D");
+
+      if (!state.path.empty()) {
+        ImGui::Image(state.texture);
+        ImGui::SameLine();
+      }
+
+      if (ImGui::Button("Load texture file")) {
+        NFD::UniquePath outPath;
+
+        nfdfilteritem_t filterItem[1] = {{"Images", "png"}};
+
+        nfdresult_t result = NFD::OpenDialog(outPath, filterItem, 1);
+        if (result == NFD_OKAY) {
+          state.path = outPath.get();
+          if (!state.texture.loadFromFile(state.path)) {
+            state.path = "";
+          }
+        }
+      }
+
+      // -- Tile preview --
+      if (!state.path.empty()) {
+        for (int y = 0; y <= 5; y++) {
+          for (int x = 0; x <= 10; x++) {
+            ImGui::Image(state.texture);
+
+            if (x < 10) {
+              ImGui::SameLine(0, 0);
+            }
+          }
+        }
+      }
+
+      // -- Tile creation --
+      if (ImGui::Button("Create a new tile")) {
+        this->tileset.add_tile(state.path, state.type);
+        ImGui::SetWindowCollapsed(true);
+      }
+
+      if (ImGui::IsWindowCollapsed()) {
+        ImGui::SetWindowCollapsed(false);
+        this->newTileState = std::nullopt;
+      }
+
+      ImGui::End();
+    }
+
+    ImGui::End();
+  }
+}
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