240 lines
8.6 KiB
C++
240 lines
8.6 KiB
C++
#include "game/editor/editor.hpp"
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#ifdef _DEBUG
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#include <SDL3/SDL.h>
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#include <algorithm>
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#include "core/input/key_config.hpp"
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#include "core/locale/locale.hpp"
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#include "core/rendering/notification_presets.hpp"
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#include "core/rendering/screen.hpp"
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#include "core/rendering/surface.hpp"
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#include "core/resources/resource_cache.hpp"
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#include "core/system/event_buffer.hpp"
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#include "game/map/tilemap.hpp"
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#include "utils/defaults.hpp"
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#include "utils/defines.hpp"
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namespace {
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// Geometria del TilePicker en espai canvas. `cols × rows_visible` tiles
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// encapsulats dins d'un rectangle amb `PICKER_MARGIN` per vora. Com que
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// el tileset real (p.ex. 32×16 tiles de 16 px = 512×256) no cabria a
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// 1× dins del canvas 336×240, linealitzem els índexs i els repartim
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// en una graella que SÍ cap, amb scroll vertical per veure la resta.
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struct PickerLayout {
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int x{0};
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int y{0};
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int w{0};
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int h{0};
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int cols{0};
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int rows_visible{0};
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int tile_size{0};
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int total_tiles{0};
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int max_scroll{0};
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};
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auto layoutPicker(const Tilemap& tm) -> PickerLayout {
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PickerLayout lay{};
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lay.tile_size = tm.getTileSize();
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const int M = Defaults::Editor::PICKER_MARGIN;
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const int INNER_W = GameCanvas::WIDTH - (2 * M);
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const int INNER_H = GameCanvas::HEIGHT - (2 * M);
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if (lay.tile_size <= 0) { return lay; }
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lay.cols = INNER_W / lay.tile_size;
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lay.rows_visible = INNER_H / lay.tile_size;
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lay.x = M;
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lay.y = M;
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lay.w = lay.cols * lay.tile_size;
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lay.h = lay.rows_visible * lay.tile_size;
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const auto TILESET = Resource::Cache::get().getSurface(tm.getTilesetPath());
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if (TILESET != nullptr) {
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const int TCOLS = TILESET->getWidth() / lay.tile_size;
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const int TROWS = TILESET->getHeight() / lay.tile_size;
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lay.total_tiles = TCOLS * TROWS;
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}
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const int TOTAL_ROWS = (lay.cols > 0) ? ((lay.total_tiles + lay.cols - 1) / lay.cols) : 0;
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lay.max_scroll = std::max(0, TOTAL_ROWS - lay.rows_visible);
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return lay;
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}
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} // namespace
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void Editor::enter() {
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if (active_) { return; }
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active_ = true;
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Notification::notify(Locale::get().text("input.editor_on"));
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}
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// cppcheck-suppress constParameterReference
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// Tilemap& mutable per simetria amb `toggle()` i per futures
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// invalidacions de caches d'edició, encara que `save()` sigui const.
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void Editor::exit(Tilemap& tilemap) {
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if (!active_) { return; }
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active_ = false;
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picker_open_ = false;
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const bool SAVED = tilemap.save(Defaults::Editor::SAVE_PATH);
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Notification::notify(Locale::get().text(SAVED ? "input.editor_off" : "input.editor_save_error"));
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}
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void Editor::toggle(Tilemap& tilemap) {
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if (active_) {
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exit(tilemap);
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} else {
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enter();
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}
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}
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void Editor::update(int /*delta_ms*/, Tilemap& tilemap) {
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if (!active_) { return; }
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// Posició del ratolí en coordenades del canvas (independent del
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// zoom de finestra i del mode d'escalat).
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float mouse_x = 0.0F;
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float mouse_y = 0.0F;
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SDL_GetMouseState(&mouse_x, &mouse_y);
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const auto CP = Screen::get().windowToCanvas(mouse_x, mouse_y);
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const int CX = static_cast<int>(CP.x);
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const int CY = static_cast<int>(CP.y);
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// Consumim tecles pròpies del picker abans que cap altre handler
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// (GlobalInputs) les vegi. ESC només es consumeix si el picker està
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// obert — fora d'ell segueix arribant a GlobalInputs per la seva
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// acció de confirmar-eixida.
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const SDL_Scancode PICKER_SC = KeyConfig::get().scancode("editor_picker");
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for (auto it = EventBuffer::events.begin(); it != EventBuffer::events.end();) {
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bool consumed = false;
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if (it->type == SDL_EVENT_KEY_DOWN) {
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if (PICKER_SC != SDL_SCANCODE_UNKNOWN && it->key.scancode == PICKER_SC) {
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picker_open_ = !picker_open_;
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if (picker_open_) { picker_scroll_ = 0; }
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consumed = true;
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} else if (picker_open_ && it->key.scancode == SDL_SCANCODE_ESCAPE) {
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picker_open_ = false;
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consumed = true;
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}
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}
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if (consumed) {
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it = EventBuffer::events.erase(it);
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} else {
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++it;
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}
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}
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if (picker_open_) {
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updatePicker(tilemap, CX, CY);
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} else {
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updateMap(tilemap, CX, CY);
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}
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}
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void Editor::updateMap(Tilemap& tilemap, int canvas_x, int canvas_y) {
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// Cursor → cel·la del tilemap. Fora del mapa deixem -1/-1 perquè
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// `render()` sàpiga no dibuixar preview i `setTileAt` ignori el clic.
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const int TS = tilemap.getTileSize();
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const int MX = canvas_x - tilemap.getOriginX();
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const int MY = canvas_y - tilemap.getOriginY();
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cursor_col_ = -1;
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cursor_row_ = -1;
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if (TS > 0 && MX >= 0 && MY >= 0) {
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const int C = MX / TS;
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const int R = MY / TS;
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if (C < tilemap.getCols() && R < tilemap.getRows()) {
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cursor_col_ = C;
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cursor_row_ = R;
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}
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}
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for (const auto& ev : EventBuffer::events) {
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if (ev.type != SDL_EVENT_MOUSE_BUTTON_DOWN) { continue; }
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if (ev.button.button == SDL_BUTTON_LEFT) {
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if (brush_ >= 0 && cursor_col_ >= 0 && cursor_row_ >= 0) {
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tilemap.setTileAt(cursor_col_, cursor_row_, brush_);
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}
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} else if (ev.button.button == SDL_BUTTON_RIGHT) {
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brush_ = -1;
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}
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}
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}
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void Editor::updatePicker(const Tilemap& tilemap, int canvas_x, int canvas_y) {
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const auto LAY = layoutPicker(tilemap);
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picker_hover_ = -1;
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if (canvas_x >= LAY.x && canvas_x < LAY.x + LAY.w && canvas_y >= LAY.y && canvas_y < LAY.y + LAY.h && LAY.tile_size > 0) {
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const int VC = (canvas_x - LAY.x) / LAY.tile_size;
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const int VR = (canvas_y - LAY.y) / LAY.tile_size;
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const int IDX = ((picker_scroll_ + VR) * LAY.cols) + VC;
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if (IDX < LAY.total_tiles) { picker_hover_ = IDX; }
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}
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for (const auto& ev : EventBuffer::events) {
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if (ev.type == SDL_EVENT_MOUSE_WHEEL) {
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picker_scroll_ -= static_cast<int>(ev.wheel.y);
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picker_scroll_ = std::clamp(picker_scroll_, 0, LAY.max_scroll);
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} else if (ev.type == SDL_EVENT_MOUSE_BUTTON_DOWN && ev.button.button == SDL_BUTTON_LEFT) {
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if (picker_hover_ >= 0) {
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brush_ = picker_hover_;
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picker_open_ = false;
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}
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}
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}
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}
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void Editor::render(const Tilemap& tilemap) const {
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if (!active_) { return; }
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auto& screen = Screen::get();
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constexpr int W = GameCanvas::WIDTH;
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constexpr int H = GameCanvas::HEIGHT;
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if (picker_open_) {
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renderPicker(tilemap);
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} else if (brush_ >= 0 && cursor_col_ >= 0 && cursor_row_ >= 0) {
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// Preview del brush sota el cursor (només quan el picker és tancat).
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const int PX = tilemap.getOriginX() + (cursor_col_ * tilemap.getTileSize());
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const int PY = tilemap.getOriginY() + (cursor_row_ * tilemap.getTileSize());
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tilemap.renderTilePreview(PX, PY, brush_);
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}
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constexpr auto BORDER = Defaults::Editor::BORDER_ARGB;
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screen.fillRect(0, 0, W, 1, BORDER);
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screen.fillRect(0, H - 1, W, 1, BORDER);
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screen.fillRect(0, 0, 1, H, BORDER);
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screen.fillRect(W - 1, 0, 1, H, BORDER);
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}
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void Editor::renderPicker(const Tilemap& tilemap) const {
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const auto LAY = layoutPicker(tilemap);
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auto& screen = Screen::get();
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screen.fillRect(LAY.x, LAY.y, LAY.w, LAY.h, Defaults::Editor::PICKER_BG_ARGB);
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for (int vr = 0; vr < LAY.rows_visible; ++vr) {
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const int LOGICAL_ROW = picker_scroll_ + vr;
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for (int vc = 0; vc < LAY.cols; ++vc) {
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const int IDX = (LOGICAL_ROW * LAY.cols) + vc;
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if (IDX >= LAY.total_tiles) { break; }
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const int PX = LAY.x + (vc * LAY.tile_size);
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const int PY = LAY.y + (vr * LAY.tile_size);
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tilemap.renderTilePreview(PX, PY, IDX);
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}
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}
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if (picker_hover_ >= 0 && LAY.cols > 0) {
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const int VR = (picker_hover_ / LAY.cols) - picker_scroll_;
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const int VC = picker_hover_ % LAY.cols;
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if (VR >= 0 && VR < LAY.rows_visible) {
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const int PX = LAY.x + (VC * LAY.tile_size);
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const int PY = LAY.y + (VR * LAY.tile_size);
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const int TS = LAY.tile_size;
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constexpr auto C = Defaults::Editor::PICKER_HOVER_ARGB;
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screen.fillRect(PX, PY, TS, 1, C);
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screen.fillRect(PX, PY + TS - 1, TS, 1, C);
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screen.fillRect(PX, PY, 1, TS, C);
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screen.fillRect(PX + TS - 1, PY, 1, TS, C);
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}
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}
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}
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#endif // _DEBUG
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