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Exposed the alpha corner values and implemented into the Sprite Batch.

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This commit is contained in:
Richard Davey 2017-07-25 22:28:02 +01:00
parent aac61e5b57
commit 848ba127ab
3 changed files with 138 additions and 17 deletions
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2
v3/src/checksum.js
View file

@ -1,4 +1,4 @@
var CHECKSUM = {
build: 'ac7c3390-712c-11e7-94b3-cb219d37da47'
build: '3e2c85e0-717f-11e7-aefb-f1890390432e'
};
module.exports = CHECKSUM;

127
v3/src/gameobjects/components/Alpha.js
View file

@ -9,6 +9,37 @@ var Alpha = {
_alpha: 1,
_alphaTL: 1,
_alphaTR: 1,
_alphaBL: 1,
_alphaBR: 1,
clearAlpha: function ()
{
return this.setAlpha(1);
},
setAlpha: function (topLeft, topRight, bottomLeft, bottomRight)
{
if (topLeft === undefined) { topLeft = 1; }
// Treat as if there is only one alpha value for the whole Game Object
if (topRight === undefined)
{
this.alpha = topLeft;
}
else
{
this._alphaTL = Clamp(topLeft, 0, 1);
this._alphaTR = Clamp(topRight, 0, 1);
this._alphaBL = Clamp(bottomLeft, 0, 1);
this._alphaBR = Clamp(bottomRight, 0, 1);
}
return this;
},
// Global Alpha value. If changed this adjusts all alpha properties (topLeft, topRight, etc)
alpha: {
get: function ()
@ -18,9 +49,15 @@ var Alpha = {
set: function (value)
{
this._alpha = Clamp(value, 0, 1);
var v = Clamp(value, 0, 1);
if (this._alpha === 0)
this._alpha = v;
this._alphaTL = v;
this._alphaTR = v;
this._alphaBL = v;
this._alphaBR = v;
if (v === 0)
{
this.renderFlags &= ~_FLAG;
}
@ -32,11 +69,89 @@ var Alpha = {
},
setAlpha: function (value)
{
this.alpha = value;
// Adjusts the alpha value of the top-left vertex (WebGL only)
alphaTopLeft: {
get: function ()
{
return this._alphaTL;
},
set: function (value)
{
var v = Clamp(value, 0, 1);
this._alphaTL = v
if (v !== 0)
{
this.renderFlags |= _FLAG;
}
}
},
alphaTopRight: {
get: function ()
{
return this._alphaTR;
},
set: function (value)
{
var v = Clamp(value, 0, 1);
this._alphaTR = v
if (v !== 0)
{
this.renderFlags |= _FLAG;
}
}
},
alphaBottomLeft: {
get: function ()
{
return this._alphaBL;
},
set: function (value)
{
var v = Clamp(value, 0, 1);
this._alphaBL = v
if (v !== 0)
{
this.renderFlags |= _FLAG;
}
}
},
alphaBottomRight: {
get: function ()
{
return this._alphaBR;
},
set: function (value)
{
var v = Clamp(value, 0, 1);
this._alphaBR = v
if (v !== 0)
{
this.renderFlags |= _FLAG;
}
}
return this;
}
};

26
v3/src/renderer/webgl/renderers/spritebatch/SpriteBatch.js
View file

@ -461,7 +461,10 @@ var SpriteBatch = new Class({
var cameraMatrix = camera.matrix.matrix;
var mva, mvb, mvc, mvd, mve, mvf, tx0, ty0, tx1, ty1, tx2, ty2, tx3, ty3;
var sra, srb, src, srd, sre, srf, cma, cmb, cmc, cmd, cme, cmf;
var alpha = gameObject.alpha;
var alphaTL = gameObject._alphaTL;
var alphaTR = gameObject._alphaTR;
var alphaBL = gameObject._alphaBL;
var alphaBR = gameObject._alphaBR;
var tintTL = gameObject._tintTL;
var tintTR = gameObject._tintTR;
var tintBL = gameObject._tintBL;
@ -511,7 +514,7 @@ var SpriteBatch = new Class({
vertexBufferObjectF32[vertexOffset++] = 0;
vertexBufferObjectF32[vertexOffset++] = 0;
vertexBufferObjectU32[vertexOffset++] = tintTL;
vertexBufferObjectF32[vertexOffset++] = alpha;
vertexBufferObjectF32[vertexOffset++] = alphaTL;
// Bottom Left
vertexBufferObjectF32[vertexOffset++] = tx1;
@ -519,7 +522,7 @@ var SpriteBatch = new Class({
vertexBufferObjectF32[vertexOffset++] = 0;
vertexBufferObjectF32[vertexOffset++] = 1;
vertexBufferObjectU32[vertexOffset++] = tintBL;
vertexBufferObjectF32[vertexOffset++] = alpha;
vertexBufferObjectF32[vertexOffset++] = alphaBL;
// Bottom Right
vertexBufferObjectF32[vertexOffset++] = tx2;
@ -527,7 +530,7 @@ var SpriteBatch = new Class({
vertexBufferObjectF32[vertexOffset++] = 1;
vertexBufferObjectF32[vertexOffset++] = 1;
vertexBufferObjectU32[vertexOffset++] = tintBR;
vertexBufferObjectF32[vertexOffset++] = alpha;
vertexBufferObjectF32[vertexOffset++] = alphaBR;
// Top Right
vertexBufferObjectF32[vertexOffset++] = tx3;
@ -535,7 +538,7 @@ var SpriteBatch = new Class({
vertexBufferObjectF32[vertexOffset++] = 1;
vertexBufferObjectF32[vertexOffset++] = 0;
vertexBufferObjectU32[vertexOffset++] = tintTR;
vertexBufferObjectF32[vertexOffset++] = alpha;
vertexBufferObjectF32[vertexOffset++] = alphaTR;
},
addSprite: function (gameObject, camera)
@ -565,7 +568,10 @@ var SpriteBatch = new Class({
var cameraMatrix = camera.matrix.matrix;
var mva, mvb, mvc, mvd, mve, mvf, tx0, ty0, tx1, ty1, tx2, ty2, tx3, ty3;
var sra, srb, src, srd, sre, srf, cma, cmb, cmc, cmd, cme, cmf;
var alpha = gameObject.alpha;
var alphaTL = gameObject._alphaTL;
var alphaTR = gameObject._alphaTR;
var alphaBL = gameObject._alphaBL;
var alphaBR = gameObject._alphaBR;
var tintTL = gameObject._tintTL;
var tintTR = gameObject._tintTR;
var tintBL = gameObject._tintBL;
@ -615,7 +621,7 @@ var SpriteBatch = new Class({
vertexBufferObjectF32[vertexOffset++] = uvs.x0;
vertexBufferObjectF32[vertexOffset++] = uvs.y0;
vertexBufferObjectU32[vertexOffset++] = tintTL;
vertexBufferObjectF32[vertexOffset++] = alpha;
vertexBufferObjectF32[vertexOffset++] = alphaTL;
// Bottom Left
vertexBufferObjectF32[vertexOffset++] = tx1;
@ -623,7 +629,7 @@ var SpriteBatch = new Class({
vertexBufferObjectF32[vertexOffset++] = uvs.x1;
vertexBufferObjectF32[vertexOffset++] = uvs.y1;
vertexBufferObjectU32[vertexOffset++] = tintBL;
vertexBufferObjectF32[vertexOffset++] = alpha;
vertexBufferObjectF32[vertexOffset++] = alphaBL;
// Bottom Right
vertexBufferObjectF32[vertexOffset++] = tx2;
@ -631,7 +637,7 @@ var SpriteBatch = new Class({
vertexBufferObjectF32[vertexOffset++] = uvs.x2;
vertexBufferObjectF32[vertexOffset++] = uvs.y2;
vertexBufferObjectU32[vertexOffset++] = tintBR;
vertexBufferObjectF32[vertexOffset++] = alpha;
vertexBufferObjectF32[vertexOffset++] = alphaBR;
// Top Right
vertexBufferObjectF32[vertexOffset++] = tx3;
@ -639,7 +645,7 @@ var SpriteBatch = new Class({
vertexBufferObjectF32[vertexOffset++] = uvs.x3;
vertexBufferObjectF32[vertexOffset++] = uvs.y3;
vertexBufferObjectU32[vertexOffset++] = tintTR;
vertexBufferObjectF32[vertexOffset++] = alpha;
vertexBufferObjectF32[vertexOffset++] = alphaTR;
}
});