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Additive blending for spine-sfml.

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This commit is contained in:
NathanSweet 2013-09-24 12:00:23 +02:00
parent 63f8e4ddaf
commit 76778031ed
5 changed files with 16 additions and 3 deletions
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1
spine-c/include/spine/SlotData.h
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@ -45,6 +45,7 @@ typedef struct {
const BoneData* const boneData;
const char* const attachmentName;
float r, g, b, a;
int/*bool*/additiveBlending;
} SlotData;
SlotData* SlotData_create (const char* name, BoneData* boneData);

2
spine-c/src/spine/Animation.c
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@ -504,8 +504,6 @@ void AttachmentTimeline_setFrame (AttachmentTimeline* self, int frameIndex, floa
/**/
#include <stdio.h>
void _DrawOrderTimeline_apply (const Timeline* timeline, Skeleton* skeleton, float time, float alpha) {
int i;
int frameIndex;

2
spine-c/src/spine/Json.c
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@ -355,5 +355,5 @@ float Json_getFloat (Json* value, const char* name, float defaultValue) {
int Json_getInt (Json* value, const char* name, int defaultValue) {
value = Json_getItem(value, name);
return value ? (int)value->valueFloat : defaultValue;
return value ? value->valueInt : defaultValue;
}

4
spine-c/src/spine/SkeletonJson.c
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@ -326,6 +326,8 @@ SkeletonData* SkeletonJson_readSkeletonData (SkeletonJson* self, const char* jso
boneData->rotation = Json_getFloat(boneMap, "rotation", 0);
boneData->scaleX = Json_getFloat(boneMap, "scaleX", 1);
boneData->scaleY = Json_getFloat(boneMap, "scaleY", 1);
boneData->inheritScale = Json_getInt(boneMap, "inheritScale", 1);
boneData->inheritRotation = Json_getInt(boneMap, "inheritRotation", 1);
skeletonData->bones[i] = boneData;
++skeletonData->boneCount;
@ -360,6 +362,8 @@ SkeletonData* SkeletonJson_readSkeletonData (SkeletonJson* self, const char* jso
attachmentItem = Json_getItem(slotMap, "attachment");
if (attachmentItem) SlotData_setAttachmentName(slotData, attachmentItem->valueString);
slotData->additiveBlending = Json_getInt(slotMap, "additive", 0);
skeletonData->slots[i] = slotData;
++skeletonData->slotCount;
}

10
spine-sfml/src/spine/spine-sfml.cpp
View File

@ -87,12 +87,22 @@ void SkeletonDrawable::update (float deltaTime) {
void SkeletonDrawable::draw (RenderTarget& target, RenderStates states) const {
vertexArray->clear();
states.blendMode = BlendAlpha;
float vertexPositions[8];
for (int i = 0; i < skeleton->slotCount; ++i) {
Slot* slot = skeleton->drawOrder[i];
Attachment* attachment = slot->attachment;
if (!attachment || attachment->type != ATTACHMENT_REGION) continue;
RegionAttachment* regionAttachment = (RegionAttachment*)attachment;
BlendMode blend = slot->data->additiveBlending ? BlendAdd : BlendAlpha;
if (states.blendMode != blend) {
target.draw(*vertexArray, states);
vertexArray->clear();
states.blendMode = blend;
}
RegionAttachment_computeVertices(regionAttachment, slot->skeleton->x, slot->skeleton->y, slot->bone, vertexPositions);
Uint8 r = skeleton->r * slot->r * 255;