VertexEffect.cpp
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/******************************************************************************
* Spine Runtimes License Agreement
* Last updated May 1, 2019. Replaces all prior versions.
*
* Copyright (c) 2013-2019, Esoteric Software LLC
*
* Integration of the Spine Runtimes into software or otherwise creating
* derivative works of the Spine Runtimes is permitted under the terms and
* conditions of Section 2 of the Spine Editor License Agreement:
* http://esotericsoftware.com/spine-editor-license
*
* Otherwise, it is permitted to integrate the Spine Runtimes into software
* or otherwise create derivative works of the Spine Runtimes (collectively,
* "Products"), provided that each user of the Products must obtain their own
* Spine Editor license and redistribution of the Products in any form must
* include this license and copyright notice.
*
* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE LLC "AS IS" AND ANY EXPRESS
* OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN
* NO EVENT SHALL ESOTERIC SOFTWARE LLC BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS
* INTERRUPTION, OR LOSS OF USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#ifdef SPINE_UE4
#include "SpinePluginPrivatePCH.h"
#endif
#include <spine/VertexEffect.h>
#include <spine/MathUtil.h>
#include <spine/Skeleton.h>
using namespace spine;
JitterVertexEffect::JitterVertexEffect(float jitterX, float jitterY): _jitterX(jitterX), _jitterY(jitterY) {
}
void JitterVertexEffect::begin(Skeleton &skeleton) {
SP_UNUSED(skeleton);
}
void JitterVertexEffect::transform(float &x, float &y, float &u, float &v, Color &light, Color &dark) {
SP_UNUSED(u);
SP_UNUSED(v);
SP_UNUSED(light);
SP_UNUSED(dark);
float jitterX = _jitterX;
float jitterY = _jitterY;
x += MathUtil::randomTriangular(-jitterX, jitterX);
y += MathUtil::randomTriangular(-jitterX, jitterY);
}
void JitterVertexEffect::end() {
}
void JitterVertexEffect::setJitterX(float jitterX) {
_jitterX = jitterX;
}
float JitterVertexEffect::getJitterX() {
return _jitterX;
}
void JitterVertexEffect::setJitterY(float jitterY) {
_jitterY = jitterY;
}
float JitterVertexEffect::getJitterY() {
return _jitterY;
}
SwirlVertexEffect::SwirlVertexEffect(float radius, Interpolation &interpolation):
_centerX(0),
_centerY(0),
_radius(radius),
_angle(0),
_worldX(0),
_worldY(0),
_interpolation(interpolation) {
}
void SwirlVertexEffect::begin(Skeleton &skeleton) {
_worldX = skeleton.getX() + _centerX;
_worldY = skeleton.getY() + _centerY;
}
void SwirlVertexEffect::transform(float &positionX, float &positionY, float &u, float &v, Color &light, Color &dark) {
SP_UNUSED(u);
SP_UNUSED(v);
SP_UNUSED(light);
SP_UNUSED(dark);
float x = positionX - _worldX;
float y = positionY - _worldY;
float dist = (float)MathUtil::sqrt(x * x + y * y);
if (dist < _radius) {
float theta = _interpolation.interpolate(0, _angle, (_radius - dist) / _radius);
float cos = MathUtil::cos(theta), sin = MathUtil::sin(theta);
positionX = cos * x - sin * y + _worldX;
positionY = sin * x + cos * y + _worldY;
}
}
void SwirlVertexEffect::end() {
}
void SwirlVertexEffect::setCenterX(float centerX) {
_centerX = centerX;
}
float SwirlVertexEffect::getCenterX() {
return _centerX;
}
void SwirlVertexEffect::setCenterY(float centerY) {
_centerY = centerY;
}
float SwirlVertexEffect::getCenterY() {
return _centerY;
}
void SwirlVertexEffect::setRadius(float radius) {
_radius = radius;
}
float SwirlVertexEffect::getRadius() {
return _radius;
}
void SwirlVertexEffect::setAngle(float angle) {
_angle = angle * MathUtil::Deg_Rad;
}
float SwirlVertexEffect::getAngle() {
return _angle;
}
void SwirlVertexEffect::setWorldX(float worldX) {
_worldX = worldX;
}
float SwirlVertexEffect::getWorldX() {
return _worldX;
}
void SwirlVertexEffect::setWorldY(float worldY) {
_worldY = worldY;
}
float SwirlVertexEffect::getWorldY() {
return _worldY;
}