com.saltosion.gladiator.input.InputHandler.java Source code

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Here is the source code for com.saltosion.gladiator.input.InputHandler.java

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/**
 * GladiatorBrawler is a 2D swordfighting game.
 * Copyright (C) 2015 Jeasonfire/Allexit
 *
 * 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 3 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/>.
 */
package com.saltosion.gladiator.input;

import java.util.HashMap;

import com.badlogic.gdx.Input.Keys;
import com.badlogic.gdx.InputProcessor;
import com.badlogic.gdx.graphics.g2d.Sprite;
import com.badlogic.gdx.utils.Array;
import com.saltosion.gladiator.gui.nodes.GUINode;
import com.saltosion.gladiator.gui.properties.ImageProperty;
import com.saltosion.gladiator.gui.properties.InteractiveProperty;
import com.saltosion.gladiator.systems.RenderingSystem;
import com.saltosion.gladiator.util.AppUtil;
import com.saltosion.gladiator.util.Global;
import com.saltosion.gladiator.util.Log;
import com.saltosion.gladiator.util.Name;

public class InputHandler implements InputProcessor {

    public HashMap<Integer, String> keys = new HashMap<Integer, String>();

    private final Array<String> hoveredUIElements = new Array<String>();
    private final HashMap<String, Boolean> activatedInputs = new HashMap<String, Boolean>();

    public InputHandler() {
        addInput(Keys.A, Name.MOVE_LEFT, false);
        addInput(Keys.D, Name.MOVE_RIGHT, false);
        addInput(Keys.SPACE, Name.JUMP, false);
        addInput(Keys.LEFT, Name.SWING_LEFT, false);
        addInput(Keys.RIGHT, Name.SWING_RIGHT, false);
        addInput(Keys.UP, Name.SWING_UP, false);
        addInput(Keys.DOWN, Name.SWING_DOWN, false);
        addInput(Keys.F2, Name.DEBUG, true);
        addInput(Keys.ESCAPE, Name.SKIP_INTRO, false);
        addInput(Keys.F3, Name.NEXT_LEVEL, false);
    }

    private void addInput(int key, String action, boolean activated) {
        keys.put(key, action);
        activatedInputs.put(action, activated);
    }

    public void setInputEnabled(String action, boolean enabled) {
        activatedInputs.put(action, enabled);
    }

    @Override
    public boolean keyDown(int keycode) {
        if (!keys.containsKey(keycode)) {
            return false;
        }
        if (!activatedInputs.get(keys.get(keycode))) {
            return false;
        }
        String actionName = keys.get(keycode);
        return InputReceivers.getReceiver(actionName).pressed();
    }

    @Override
    public boolean keyUp(int keycode) {
        if (!keys.containsKey(keycode)) {
            return false;
        }
        if (!activatedInputs.get(keys.get(keycode))) {
            return false;
        }
        String actionName = keys.get(keycode);
        return InputReceivers.getReceiver(actionName).released();
    }

    @Override
    public boolean keyTyped(char character) {
        return false;
    }

    @Override
    public boolean touchDown(int screenX, int screenY, int pointer, int button) {
        for (String id : hoveredUIElements) {
            GUINode node = AppUtil.guiManager.getNode(id);

            if (node instanceof InteractiveProperty) {
                ((InteractiveProperty) node).pressed(screenX, screenY, button);
            } else {
                Log.error("Attempted to call 'pressed' on a non-interactive node!");
            }
        }
        return true;
    }

    @Override
    public boolean touchUp(int screenX, int screenY, int pointer, int button) {
        for (String id : hoveredUIElements) {
            GUINode node = AppUtil.guiManager.getNode(id);

            if (node instanceof InteractiveProperty) {
                ((InteractiveProperty) node).released(screenX, screenY, button);
            } else {
                Log.error("Attempted to call 'released' on a non-interactive node!");
            }
        }
        return true;
    }

    @Override
    public boolean touchDragged(int screenX, int screenY, int pointer) {
        return false;
    }

    @Override
    public boolean mouseMoved(int screenX, int screenY) {
        RenderingSystem rs = AppUtil.engine.getSystem(RenderingSystem.class);

        float x = (float) (screenX) / rs.screenWidth;
        float y = 1 - (float) (screenY) / rs.screenHeight;

        for (GUINode node : AppUtil.guiManager.getAllRecursiveChildren(AppUtil.guiManager.getRootNode())) {
            if (node instanceof ImageProperty) {
                Sprite s = ((ImageProperty) node).getImage();
                float height = (s.getHeight() * Global.SPRITE_SCALE) / AppUtil.VPHEIGHT_CONST;
                float width = (s.getWidth() * Global.SPRITE_SCALE) / (AppUtil.VPHEIGHT_CONST * rs.aspectratio);
                float x0 = node.getPosition().x - width / 2;
                float x1 = node.getPosition().x + width / 2;
                float y0 = node.getPosition().y - height / 2;
                float y1 = node.getPosition().y + height / 2;
                x += 0.0065f;
                if (node instanceof InteractiveProperty) {
                    InteractiveProperty interactiveNode = (InteractiveProperty) node;

                    if (x >= x0 && x <= x1 && y >= y0 && y <= y1) {
                        if (hoveredUIElements.contains(node.getID(), false)) {
                            continue;
                        }
                        hoveredUIElements.add(node.getID());
                        interactiveNode.mouseEnter(screenX, screenY);
                    } else {
                        if (!hoveredUIElements.contains(node.getID(), false)) {
                            continue;
                        }
                        hoveredUIElements.removeValue(node.getID(), false);
                        interactiveNode.mouseLeave(screenX, screenY);
                    }
                }
            }
        }
        return true;
    }

    @Override
    public boolean scrolled(int amount) {
        return false;
    }

}