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engines/crab/level/level_collide.cpp

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+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * 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/>.
+ *
+ */
+
+/*
+ * This code is based on the CRAB engine
+ *
+ * Copyright (c) Arvind Raja Yadav
+ *
+ * Licensed under MIT
+ *
+ */
+
+#include "crab/input/cursor.h"
+#include "crab/level/level.h"
+
+namespace Crab {
+
+using namespace TMX;
+using namespace pyrodactyl::stat;
+using namespace pyrodactyl::anim;
+using namespace pyrodactyl::level;
+using namespace pyrodactyl::image;
+using namespace pyrodactyl::people;
+using namespace pyrodactyl::input;
+using namespace pyrodactyl::event;
+using namespace pyrodactyl::music;
+
+//------------------------------------------------------------------------
+// Purpose: See if player clicked on a sprite they are colliding with
+//------------------------------------------------------------------------
+bool Level::containsClick(const Common::String &id, const Common::Event &event) {
+	// If mouse is moved and is hovering on the specified sprite (id), set hover = true
+	if (event.type == Common::EVENT_MOUSEMOVE) {
+		for (auto &i : _objects) {
+			Rect r = i.posRect();
+
+			if (r.contains(g_engine->_mouse->_motion.x + _camera.x, g_engine->_mouse->_motion.y + _camera.y)) {
+				// This is to show the sprite's name on top of their head
+				i._hover = true;
+
+				// This is to update the mouse cursor only if we're in talking range of a sprite
+				if (i.id() == id)
+					g_engine->_mouse->_hover = true;
+			} else
+				i._hover = false;
+		}
+
+		return false;
+	} else if (g_engine->_mouse->pressed()) {
+		for (auto &i : _objects) {
+			if (i.id() == id) {
+				Rect r = i.posRect();
+				if (r.contains(g_engine->_mouse->_button.x + _camera.x, g_engine->_mouse->_button.y + _camera.y)) {
+					g_engine->_mouse->_hover = true;
+					return true;
+				}
+			}
+		}
+	}
+
+	return false;
+}
+
+//------------------------------------------------------------------------
+// Purpose: Find if a layer is visible (used only for objects with layers associated with them)
+//------------------------------------------------------------------------
+bool Level::layerVisible(pyrodactyl::anim::Sprite *obj) {
+	if (obj->_layer < 0)
+		return true;
+
+	if ((uint)obj->_layer < _terrain._layer.size())
+		return _terrain._layer[obj->_layer]._collide;
+
+	return false;
+}
+
+//------------------------------------------------------------------------
+// Purpose: Check if a sprite is colliding with the trigger areas
+// Common::String &id is set to the id of colliding object
+//------------------------------------------------------------------------
+void Level::calcTrigCollide(pyrodactyl::event::Info &info) {
+	for (auto &i : _objects)
+		if (info.personValid(i.id()))
+			_terrain.collideWithTrigger(i.boundRect(), info.personGet(i.id())._trig);
+}
+
+//------------------------------------------------------------------------
+// Purpose: Check if a sprite is colliding with interactive objects
+// Common::String &id is set to the id of colliding object
+//------------------------------------------------------------------------
+bool Level::collidingWithObject(pyrodactyl::event::Info &info, Common::String &id) {
+	// Clip and Bounding rectangle of player
+	Rect pPos = _objects[_playerIndex].posRect(), pBound = _objects[_playerIndex].boundRect();
+
+	uint index = 0;
+	for (auto i = _objects.begin(); i != _objects.end(); ++i, ++index) {
+		if (i->visible() && _playerIndex != index && info.state(i->id()) == PST_NORMAL) {
+			// Clip and bounding rectangles for the NPC sprite
+			Rect iPos = i->posRect(), iBound = i->boundRect();
+
+			if (pPos.collide(iPos) || iPos.contains(pPos) || pBound.collide(iBound) || iBound.contains(pBound)) {
+				id = i->id();
+				return true;
+			}
+		}
+	}
+
+	return false;
+}
+
+//------------------------------------------------------------------------
+// Purpose: Check if a sprite is colliding with non-interactive stuff in the level
+// id is set to the id of colliding object
+//------------------------------------------------------------------------
+bool Level::collidingWithLevel(pyrodactyl::event::Info &info, pyrodactyl::anim::Sprite &s) {
+	_terrain.collideWithNoWalk(s.boundRect(), s._collideData);
+
+	_terrain.collideWithStairs(s.boundRect(), s._velMod);
+
+	if (_terrain.collideWithMusic(s.boundRect(), _music)) {
+		if (_music._track)
+			g_engine->_musicManager->playMusic(_music._id);
+		else
+			g_engine->_musicManager->playEffect(_music._id, _music._loops);
+	}
+
+	// If we are colliding with something, return true
+	return !s._collideData.empty();
+}
+
+} // End of namespace Crab