blame: source/code/puzzle_editor/PuzzleEditorState.cpp

/*

===========================================================================

blockattack - Block Attack - Rise of the Blocks

Copyright (C) 2005-2025 Poul Sander

This program is free software: you can redistribute it and/or modify

it under the terms of the GNU General Public License as published by

the Free Software Foundation, either version 2 of the License, or

(at your option) any later version.

This program is distributed in the hope that it will be useful,

but WITHOUT ANY WARRANTY; without even the implied warranty of

MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

GNU General Public License for more details.

You should have received a copy of the GNU General Public License

along with this program.  If not, see http://www.gnu.org/licenses/

Source information and contacts persons can be found at

https://blockattack.net

===========================================================================

*/

#include "PuzzleEditorState.hpp"

#include "imgui.h"

#include "backends/imgui_impl_sdl2.h"

#include "backends/imgui_impl_sdlrenderer2.h"

#include "../sago/SagoMisc.hpp"

#include "../puzzlehandler.hpp"

PuzzleEditorState::PuzzleEditorState() {

	this->window_resize = sago::SagoLogicalResize(BOARD_WIDTH+5, BOARD_HEIGHT+5);

}

bool PuzzleEditorState::IsActive() {

	return isActive;

}

void PuzzleEditorState::ProcessInput(const SDL_Event& event, bool& processed) {

	ImGui_ImplSDL2_ProcessEvent(&event);

}

void PuzzleEditorState::Init() {

	this->selected_file = "";

	this->puzzle_files = sago::GetFileList("puzzles");

}

void PuzzleEditorState::SelectFile(const std::string& file) {

	this->selected_file = file;

	PuzzleSetName(file);

	LoadPuzzleStages();

}

static void LogicalToPhysical(const sago::SagoLogicalResize& resize, ImVec2& inout) {

	int inx = inout.x;

	int iny = inout.y;

	int outx = inout.x;

	int outy = inout.y;

	resize.LogicalToPhysical(inx, iny, outx, outy);

	inout.x = outx;

	inout.y = outy;

}

static void ImGuiWritePartOfTexture(SDL_Texture* texture, int topx, int topy, int tex_w, int tex_h, int w, int h) {

	float sprite_w = tex_w;

	float sprite_h = tex_h;

	float topxf = topx;

	float topyf = topy;

	ImVec2 uv0 = ImVec2(topxf / tex_w, topyf / tex_h);

	ImVec2 uv1 = ImVec2((topxf + sprite_w) / tex_w, (topyf + sprite_h) / tex_h);

	ImGui::Image((ImTextureID)(intptr_t)texture, ImVec2((float)w, (float)h), uv0, uv1);

}

static void DrawBrick(int brick, int x, int y, int width, int height) {

	if (brick < 0 || brick > 6) {

		return;

	}

	sago::SagoSprite& sprite = globalData.bricks[brick];

	ImGui::SetCursorScreenPos({ static_cast<float>(x), static_cast<float>(y) });

	ImGuiWritePartOfTexture(sprite.GetTextureHandler().get(), sprite.GetImageCord().x, sprite.GetImageCord().y, sprite.GetWidth(), sprite.GetHeight(), width, height);

}

void PuzzleEditorState::Draw(SDL_Renderer* target) {

	DrawBackground(target);

	ImGui::Begin("Board area");

	ImGui::BeginChild("Test");

	ImVec2 p = ImGui::GetCursorScreenPos();

	ImVec2 size = ImGui::GetContentRegionAvail();

	int xoffset = p.x;

	int yoffset = p.y;

	int height = BOARD_HEIGHT;

	int width = BOARD_WIDTH;

	window_resize.SetPhysicalSize(size.x, size.y);

	int brick_size = 50;

	window_resize.LogicalToPhysical(&brick_size, nullptr);

	brick_size -= window_resize.GetLeftMargin();

	for (int i=0; i < 6; ++i) {

		for (int j=0; j < 12; ++j) {

			ImVec2 p1(i*50.0f, (11-j)*50.0f);

			LogicalToPhysical(window_resize, p1);

			p1.x += xoffset;

			p1.y += yoffset;

			int brick = PuzzleGetBrick(this->selected_puzzle, i, j);

			DrawBrick(brick, static_cast<int>(p1.x), static_cast<int>(p1.y), brick_size, brick_size);

		}

	}

	for (int i=0; i <= 6;++i) {

		ImVec2 p1(i*50.0f, 0);

		ImVec2 p2(i*50.0f, height);

		LogicalToPhysical(window_resize, p1);

		LogicalToPhysical(window_resize, p2);

		p1.x += xoffset;

		p1.y += yoffset;

		p2.x += xoffset;

		p2.y += yoffset;

		ImGui::GetWindowDrawList()->AddLine(p1, p2, IM_COL32(255, 0, 0, 100));

	}

	for (int i=0; i <= 12;++i) {

		ImVec2 p1(0,i*50.0f);

		ImVec2 p2(width, i*50.0f);

		LogicalToPhysical(window_resize, p1);

		LogicalToPhysical(window_resize, p2);

		p1.x += xoffset;

		p1.y += yoffset;

		p2.x += xoffset;

		p2.y += yoffset;

		ImGui::GetWindowDrawList()->AddLine(p1, p2, IM_COL32(255, 0, 0, 100));

	}

	ImGui::EndChild();

	ImGui::End();

	ImGui::Begin("File list", nullptr, ImGuiWindowFlags_NoCollapse);

	for (const auto& file : this->puzzle_files) {

		if (ImGui::Selectable(file.c_str(), this->selected_file == file)) {

			SelectFile(file);

		}

	}

	ImGui::End();

	ImGui::Begin("Puzzles in file");

	int puzzle_count = PuzzleGetNumberOfPuzzles();

	for (int i = 0; i < puzzle_count; ++i) {

		if (ImGui::Selectable(std::to_string(i).c_str(), this->selected_puzzle == i)) {

			this->selected_puzzle = i;

		}

	}

	ImGui::End();

}

void PuzzleEditorState::Update() {

}