twodcraft/src/main/java/cz/jzitnik/game/ui/Escape.java

package cz.jzitnik.game.ui;

import org.jline.terminal.MouseEvent;
import org.jline.terminal.Terminal;

import cz.jzitnik.game.Game;
import cz.jzitnik.game.sprites.ui.Font;
import cz.jzitnik.game.sprites.ui.Font.*;
import cz.jzitnik.tui.ScreenRenderer;
import lombok.extern.slf4j.Slf4j;

@Slf4j
public class Escape {
    private Game game;
    private int btnWidth;
    private int leftPad;
    private int mainTextHeight;
    private int buttonHeight;
    private int textButtonMargin;

    private boolean[] buttonsHover = { false, false, false };

    public Escape(Game game) {
        this.game = game;
    }

    public void renderSave(StringBuilder buffer, Terminal terminal) {
        var font = game.getGameStates().dependencies.font;
        var savingText = font.line(terminal, "Saving", Size.LARGE, Align.CENTER);

        int top = (terminal.getHeight() - savingText.getHeight()) / 2;

        buffer.append("\n".repeat(top));
        buffer.append(savingText.getData());
    }

    public void renderSaved(StringBuilder buffer, Terminal terminal) {
        var font = game.getGameStates().dependencies.font;
        var savingText = font.line(terminal, "Saved", Size.LARGE, Align.CENTER);

        int top = (terminal.getHeight() - savingText.getHeight()) / 2;

        buffer.append("\n".repeat(top));
        buffer.append(savingText.getData());
    }

    public void render(StringBuilder buffer, Terminal terminal) {
        var font = game.getGameStates().dependencies.font;
        var width = terminal.getWidth();
        var height = terminal.getHeight();

        log.debug("Terminal width: {}", width);
        log.debug("Terminal height: {}", height);

        var twodcraft = font.line(terminal, "2DCraft", Size.LARGE, Align.CENTER);
        buffer.append(twodcraft.getData());
        mainTextHeight = twodcraft.getHeight();

        if (height < 600) {
            textButtonMargin = 15;
        } else if (height < 800) {
            textButtonMargin = 30;
        } else {
            textButtonMargin = 50;
        }

        buffer.append("\n".repeat(textButtonMargin));

        renderButton(buffer, "Continue", width, font, terminal, buttonsHover[0]);
        buffer.append("\n".repeat(textButtonMargin / 2));
        renderButton(buffer, "Options", width, font, terminal, buttonsHover[1]);
        buffer.append("\n".repeat(textButtonMargin / 2));
        renderButton(buffer, "Save and exit", width, font, terminal, buttonsHover[2]);
    }

    public void mouse(MouseEvent mouseEvent, Terminal terminal, ScreenRenderer screenRenderer) {
        int x = mouseEvent.getX();
        int y = mouseEvent.getY();
        var type = mouseEvent.getType();

        int buttonx = x - leftPad;
        int buttony = y - (mainTextHeight + textButtonMargin);
        int margin = textButtonMargin / 2;

        boolean changed = false;

        if (buttonx > 0 && buttonx <= btnWidth) {
            // Continue
            if (buttony > 0 && buttony < buttonHeight) {
                if (type == MouseEvent.Type.Pressed) {
                    game.setWindow(Window.WORLD);
                    screenRenderer.render(game);
                    return;
                }

                if (buttonsHover[0] == false) {
                    buttonsHover[0] = true;
                    changed = true;
                }
            } else if (buttonsHover[0]) {
                buttonsHover[0] = false;
                changed = true;
            }

            // Options
            if (buttony > buttonHeight + margin && buttony < 2 * buttonHeight + margin) {
                if (type == MouseEvent.Type.Pressed) {
                    return;
                }

                if (buttonsHover[1] == false) {
                    buttonsHover[1] = true;
                    changed = true;
                }
            } else if (buttonsHover[1]) {
                buttonsHover[1] = false;
                changed = true;
            }

            // Save and exit
            if (buttony > 2 * (buttonHeight + margin) && buttony < buttonHeight + 2 * (buttonHeight + margin)) {
                if (type == MouseEvent.Type.Pressed) {
                    game.setWindow(Window.SAVE_EXIT);
                    screenRenderer.render(game);

                    // Save game
                    game.getGameStates().dependencies.gameSaver.save(game);

                    game.setWindow(Window.SAVED);
                    screenRenderer.render(game);

                    System.exit(0);
                }

                if (buttonsHover[2] == false) {
                    buttonsHover[2] = true;
                    changed = true;
                }
            } else if (buttonsHover[2]) {
                buttonsHover[2] = false;
                changed = true;
            }
        }

        if (changed) {
            screenRenderer.render(game);
        }
    }

    private void renderButton(StringBuilder buffer, String txt, int width, Font font, Terminal terminal,
            boolean selected) {
        int btnWidth = Math.min(350, (int) (width * (3.0 / 4)));
        this.btnWidth = btnWidth;
        int leftPad = (width - btnWidth) / 2;
        this.leftPad = leftPad;
        log.debug("Button width: {}px ", btnWidth);

        final String color = selected ? "[48;2;70;70;70m" : "[48;2;116;115;113m";

        var text = font.line(terminal, txt, Size.SMALL, Align.CENTER, new Custom.Width(btnWidth - 4),
                new Background(color));
        int btnHeight = text.getHeight() + 4;
        this.buttonHeight = btnHeight;
        var lines = text.getData().split("\n");

        for (int y = 0; y < btnHeight; y++) {
            buffer.append(" ".repeat(leftPad));
            if (y == 0 || y == 1 || y == btnHeight - 1 || y == btnHeight - 2) {
                buffer.append("\033").append(color).append(" ".repeat(btnWidth));
            } else {
                buffer.append("\033").append(color).append(" ".repeat(2));
                buffer.append(lines[y - 2]);
                buffer.append("\033").append(color).append(" ".repeat(2));
            }

            buffer.append("\033[0m\n");
        }
    }

    public void reset() {
        for (int i = 0; i < buttonsHover.length; i++) {
            buttonsHover[i] = false;
        }
    }
}