mirror of https://github.com/axmolengine/axmol.git
131 lines
5.2 KiB
C
131 lines
5.2 KiB
C
/******************************************************************************
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* Spine Runtimes Software License v2.5
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*
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* Copyright (c) 2013-2016, Esoteric Software
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* All rights reserved.
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*
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* You are granted a perpetual, non-exclusive, non-sublicensable, and
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* non-transferable license to use, install, execute, and perform the Spine
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* Runtimes software and derivative works solely for personal or internal
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* use. Without the written permission of Esoteric Software (see Section 2 of
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* the Spine Software License Agreement), you may not (a) modify, translate,
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* adapt, or develop new applications using the Spine Runtimes or otherwise
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* create derivative works or improvements of the Spine Runtimes or (b) remove,
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* delete, alter, or obscure any trademarks or any copyright, trademark, patent,
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* or other intellectual property or proprietary rights notices on or in the
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* Software, including any copy thereof. Redistributions in binary or source
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* form must include this license and terms.
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*
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* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
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* USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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#include <spine/RegionAttachment.h>
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#include <spine/extension.h>
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typedef enum {
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BLX = 0, BLY, ULX, ULY, URX, URY, BRX, BRY
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} spVertexIndex;
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void _spRegionAttachment_dispose (spAttachment* attachment) {
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spRegionAttachment* self = SUB_CAST(spRegionAttachment, attachment);
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_spAttachment_deinit(attachment);
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FREE(self->path);
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FREE(self);
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}
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spRegionAttachment* spRegionAttachment_create (const char* name) {
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spRegionAttachment* self = NEW(spRegionAttachment);
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self->scaleX = 1;
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self->scaleY = 1;
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spColor_setFromFloats(&self->color, 1, 1, 1, 1);
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_spAttachment_init(SUPER(self), name, SP_ATTACHMENT_REGION, _spRegionAttachment_dispose);
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return self;
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}
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void spRegionAttachment_setUVs (spRegionAttachment* self, float u, float v, float u2, float v2, int/*bool*/rotate) {
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if (rotate) {
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self->uvs[URX] = u;
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self->uvs[URY] = v2;
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self->uvs[BRX] = u;
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self->uvs[BRY] = v;
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self->uvs[BLX] = u2;
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self->uvs[BLY] = v;
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self->uvs[ULX] = u2;
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self->uvs[ULY] = v2;
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} else {
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self->uvs[ULX] = u;
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self->uvs[ULY] = v2;
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self->uvs[URX] = u;
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self->uvs[URY] = v;
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self->uvs[BRX] = u2;
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self->uvs[BRY] = v;
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self->uvs[BLX] = u2;
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self->uvs[BLY] = v2;
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}
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}
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void spRegionAttachment_updateOffset (spRegionAttachment* self) {
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float regionScaleX = self->width / self->regionOriginalWidth * self->scaleX;
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float regionScaleY = self->height / self->regionOriginalHeight * self->scaleY;
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float localX = -self->width / 2 * self->scaleX + self->regionOffsetX * regionScaleX;
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float localY = -self->height / 2 * self->scaleY + self->regionOffsetY * regionScaleY;
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float localX2 = localX + self->regionWidth * regionScaleX;
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float localY2 = localY + self->regionHeight * regionScaleY;
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float radians = self->rotation * DEG_RAD;
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float cosine = COS(radians), sine = SIN(radians);
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float localXCos = localX * cosine + self->x;
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float localXSin = localX * sine;
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float localYCos = localY * cosine + self->y;
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float localYSin = localY * sine;
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float localX2Cos = localX2 * cosine + self->x;
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float localX2Sin = localX2 * sine;
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float localY2Cos = localY2 * cosine + self->y;
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float localY2Sin = localY2 * sine;
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self->offset[BLX] = localXCos - localYSin;
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self->offset[BLY] = localYCos + localXSin;
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self->offset[ULX] = localXCos - localY2Sin;
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self->offset[ULY] = localY2Cos + localXSin;
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self->offset[URX] = localX2Cos - localY2Sin;
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self->offset[URY] = localY2Cos + localX2Sin;
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self->offset[BRX] = localX2Cos - localYSin;
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self->offset[BRY] = localYCos + localX2Sin;
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}
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void spRegionAttachment_computeWorldVertices (spRegionAttachment* self, spBone* bone, float* vertices, int offset, int stride) {
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const float* offsets = self->offset;
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float x = bone->worldX, y = bone->worldY;
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float offsetX, offsetY;
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offsetX = offsets[BRX];
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offsetY = offsets[BRY];
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vertices[offset] = offsetX * bone->a + offsetY * bone->b + x; /* br */
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vertices[offset + 1] = offsetX * bone->c + offsetY * bone->d + y;
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offset += stride;
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offsetX = offsets[BLX];
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offsetY = offsets[BLY];
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vertices[offset] = offsetX * bone->a + offsetY * bone->b + x; /* bl */
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vertices[offset + 1] = offsetX * bone->c + offsetY * bone->d + y;
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offset += stride;
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offsetX = offsets[ULX];
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offsetY = offsets[ULY];
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vertices[offset] = offsetX * bone->a + offsetY * bone->b + x; /* ul */
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vertices[offset + 1] = offsetX * bone->c + offsetY * bone->d + y;
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offset += stride;
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offsetX = offsets[URX];
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offsetY = offsets[URY];
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vertices[offset] = offsetX * bone->a + offsetY * bone->b + x; /* ur */
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vertices[offset + 1] = offsetX * bone->c + offsetY * bone->d + y;
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}
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