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engines/crab/animation/walkframes.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/animation/walkframes.h"
+
+namespace Crab {
+
+using namespace pyrodactyl::anim;
+using namespace pyrodactyl::people;
+
+//------------------------------------------------------------------------
+// Purpose: Loader Function
+//------------------------------------------------------------------------
+void WalkFrames::load(rapidxml::xml_node<char> *node) {
+	if (nodeValid("stand", node))
+		_set[WT_STAND].load(node->first_node("stand"));
+
+	if (nodeValid("walk", node))
+		_set[WT_WALK].load(node->first_node("walk"));
+
+	if (nodeValid("fight", node))
+		_set[WT_FIGHT].load(node->first_node("fight"));
+
+	if (nodeValid("ko", node))
+		_set[WT_KO].load(node->first_node("ko"));
+}
+
+//------------------------------------------------------------------------
+// Purpose: Used for walking inside levels
+//------------------------------------------------------------------------
+bool WalkFrames::updateClip(Direction d, bool reset) {
+	if (_timer.ticks() > _set[_cur].frames[d].currentFrame()._repeat || reset) {
+		_timer.start();
+		return _set[_cur].frames[d].updateClip();
+	}
+
+	return false;
+}
+
+void WalkFrames::resetClip(Direction d) {
+	_set[_cur].frames[d].reset();
+	_timer.start();
+}
+
+//------------------------------------------------------------------------
+// Purpose: Used inside dialog box
+//------------------------------------------------------------------------
+void WalkFrames::updateClip(WalkAnimType type, Direction d) {
+	if (!_timer.started())
+		_timer.start();
+
+	if (_timer.ticks() > _set[type].frames[d].currentFrame()._repeat) {
+		_set[type].frames[d].updateClip();
+		_timer.start();
+	}
+}
+
+Rect WalkFrames::dialogClip(const PersonState &state) {
+	if (state == PST_FIGHT)
+		return _set[WT_FIGHT].frames[DIRECTION_DOWN].currentFrame()._clip;
+	else if (state == PST_KO)
+		return _set[WT_KO].frames[DIRECTION_DOWN].currentFrame()._clip;
+
+	return _set[WT_STAND].frames[DIRECTION_DOWN].currentFrame()._clip;
+}
+
+void WalkFrames::updateClip(const PersonState &state) {
+	if (state == PST_FIGHT)
+		updateClip(WT_FIGHT, DIRECTION_DOWN);
+	else if (state == PST_KO)
+		updateClip(WT_KO, DIRECTION_DOWN);
+	else
+		updateClip(WT_STAND, DIRECTION_DOWN);
+}
+
+//------------------------------------------------------------------------
+// Purpose: Decide direction and type of animation, return whether it has changed
+//------------------------------------------------------------------------
+bool WalkFrames::type(const Vector2f &vel, Direction &dir, const pyrodactyl::people::PersonState &pst, const bool &firstX) {
+	Direction prevDir = dir;
+	WalkAnimType prevType = _cur;
+
+	if (pst == PST_KO) {
+		_cur = WT_KO;
+	} else if (firstX) {
+		// If we prioritize the X direction, X velocity is checked first for direction and then Y velocity
+		if (vel.x > 0) {
+			dir = DIRECTION_RIGHT;
+			_cur = WT_WALK;
+		} else if (vel.x < 0) {
+			dir = DIRECTION_LEFT;
+			_cur = WT_WALK;
+		} else if (vel.y > 0) {
+			dir = DIRECTION_DOWN;
+			_cur = WT_WALK;
+		} else if (vel.y < 0) {
+			dir = DIRECTION_UP;
+			_cur = WT_WALK;
+		} else {
+			_cur = WT_STAND;
+		}
+	} else {
+		// If we prioritize the Y direction, Y velocity is checked first for direction and then Y velocity
+		if (vel.y > 0) {
+			dir = DIRECTION_DOWN;
+			_cur = WT_WALK;
+		} else if (vel.y < 0) {
+			dir = DIRECTION_UP;
+			_cur = WT_WALK;
+		} else if (vel.x > 0) {
+			dir = DIRECTION_RIGHT;
+			_cur = WT_WALK;
+		} else if (vel.x < 0) {
+			dir = DIRECTION_LEFT;
+			_cur = WT_WALK;
+		} else {
+			_cur = WT_STAND;
+		}
+	}
+
+	if (prevDir != dir || prevType != _cur)
+		return true;
+
+	return false;
+}
+
+} // End of namespace Crab