mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2026-02-19 16:26:40 +08:00
102 lines
4.1 KiB
C
102 lines
4.1 KiB
C
/******************************************************************************
|
|
* Spine Runtimes Software License
|
|
* Version 2.1
|
|
*
|
|
* Copyright (c) 2013, Esoteric Software
|
|
* All rights reserved.
|
|
*
|
|
* You are granted a perpetual, non-exclusive, non-sublicensable and
|
|
* non-transferable license to install, execute and perform the Spine Runtimes
|
|
* Software (the "Software") solely for internal use. Without the written
|
|
* permission of Esoteric Software (typically granted by licensing Spine), you
|
|
* may not (a) modify, translate, adapt or otherwise create derivative works,
|
|
* improvements of the Software or develop new applications using the Software
|
|
* or (b) remove, delete, alter or obscure any trademarks or any copyright,
|
|
* trademark, patent or other intellectual property or proprietary rights
|
|
* notices on or in the Software, including any copy thereof. Redistributions
|
|
* in binary or source form must include this license and terms.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "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 SOFTARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
|
|
* OR BUSINESS INTERRUPTION) 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.
|
|
*****************************************************************************/
|
|
|
|
#include <spine/Bone.h>
|
|
#include <spine/extension.h>
|
|
|
|
static int yDown;
|
|
|
|
void spBone_setYDown (int value) {
|
|
yDown = value;
|
|
}
|
|
|
|
spBone* spBone_create (spBoneData* data, spBone* parent) {
|
|
spBone* self = NEW(spBone);
|
|
CONST_CAST(spBoneData*, self->data) = data;
|
|
CONST_CAST(spBone*, self->parent) = parent;
|
|
spBone_setToSetupPose(self);
|
|
return self;
|
|
}
|
|
|
|
void spBone_dispose (spBone* self) {
|
|
FREE(self);
|
|
}
|
|
|
|
void spBone_setToSetupPose (spBone* self) {
|
|
self->x = self->data->x;
|
|
self->y = self->data->y;
|
|
self->rotation = self->data->rotation;
|
|
self->scaleX = self->data->scaleX;
|
|
self->scaleY = self->data->scaleY;
|
|
}
|
|
|
|
void spBone_updateWorldTransform (spBone* self, int flipX, int flipY) {
|
|
float radians, cosine, sine;
|
|
if (self->parent) {
|
|
CONST_CAST(float, self->worldX) = self->x * self->parent->m00 + self->y * self->parent->m01 + self->parent->worldX;
|
|
CONST_CAST(float, self->worldY) = self->x * self->parent->m10 + self->y * self->parent->m11 + self->parent->worldY;
|
|
if (self->data->inheritScale) {
|
|
CONST_CAST(float, self->worldScaleX) = self->parent->worldScaleX * self->scaleX;
|
|
CONST_CAST(float, self->worldScaleY) = self->parent->worldScaleY * self->scaleY;
|
|
} else {
|
|
CONST_CAST(float, self->worldScaleX) = self->scaleX;
|
|
CONST_CAST(float, self->worldScaleY) = self->scaleY;
|
|
}
|
|
CONST_CAST(float, self->worldRotation) =
|
|
self->data->inheritRotation ? self->parent->worldRotation + self->rotation : self->rotation;
|
|
} else {
|
|
CONST_CAST(float, self->worldX) = flipX ? -self->x : self->x;
|
|
CONST_CAST(float, self->worldY) = flipY != yDown ? -self->y : self->y;
|
|
CONST_CAST(float, self->worldScaleX) = self->scaleX;
|
|
CONST_CAST(float, self->worldScaleY) = self->scaleY;
|
|
CONST_CAST(float, self->worldRotation) = self->rotation;
|
|
}
|
|
radians = (float)(self->worldRotation * 3.1415926535897932385 / 180);
|
|
#ifdef __STDC_VERSION__
|
|
cosine = cosf(radians);
|
|
sine = sinf(radians);
|
|
#else
|
|
cosine = (float)cos(radians);
|
|
sine = (float)sin(radians);
|
|
#endif
|
|
CONST_CAST(float, self->m00) = cosine * self->worldScaleX;
|
|
CONST_CAST(float, self->m10) = sine * self->worldScaleX;
|
|
CONST_CAST(float, self->m01) = -sine * self->worldScaleY;
|
|
CONST_CAST(float, self->m11) = cosine * self->worldScaleY;
|
|
if (flipX) {
|
|
CONST_CAST(float, self->m00) = -self->m00;
|
|
CONST_CAST(float, self->m01) = -self->m01;
|
|
}
|
|
if (flipY != yDown) {
|
|
CONST_CAST(float, self->m10) = -self->m10;
|
|
CONST_CAST(float, self->m11) = -self->m11;
|
|
}
|
|
}
|