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Better debug rendering

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This commit is contained in:
Richard Davey 2020-10-09 14:57:07 +01:00
parent 4eb5bbdc8b
commit caa69b673d
2 changed files with 35 additions and 27 deletions
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49
src/gameobjects/mesh/Mesh.js
View file

@ -757,16 +757,30 @@ var Mesh = new Class({
* eventually crashing the browser. This is not done automatically to allow you to debug
* draw multiple Mesh objects to a single Graphics instance.
*
* The Mesh class has a built-in debug rendering callback `Mesh.renderDebugVerts`, however
* The Mesh class has a built-in debug rendering callback `Mesh.renderDebug`, however
* you can also provide your own callback to be used instead. Do this by setting the `callback` parameter.
*
* The callback is invoked _once per render_ and sent the following parameters:
*
* `callback(src, meshLength, verts)`
* `callback(src, faces)`
*
* `src` is the Mesh instance being debugged.
* `meshLength` is the number of mesh vertices in total.
* `verts` is an array of the translated vertex coordinates.
* `faces` is an array of the Faces that were rendered.
*
* You can get the final drawn vertex position from a Face object like this:
*
* ```javascript
* let face = faces[i];
*
* let x0 = face.vertex1.tx;
* let y0 = face.vertex1.ty;
* let x1 = face.vertex2.tx;
* let y1 = face.vertex2.ty;
* let x2 = face.vertex3.tx;
* let y2 = face.vertex3.ty;
*
* graphic.strokeTriangle(x0, y0, x1, y1, x2, y2);
* ```
*
* If using your own callback you do not have to provide a Graphics instance to this method.
*
@ -791,7 +805,7 @@ var Mesh = new Class({
}
else if (!callback)
{
this.debugCallback = this.renderDebugVerts;
this.debugCallback = this.renderDebug;
}
else
{
@ -946,29 +960,30 @@ var Mesh = new Class({
},
/**
* The built-in Mesh vertices debug rendering method.
* The built-in Mesh debug rendering method.
*
* See `Mesh.setDebug` for more details.
*
* @method Phaser.GameObjects.Mesh#renderDebugVerts
* @method Phaser.GameObjects.Mesh#renderDebug
* @since 3.50.0
*
* @param {Phaser.GameObjects.Mesh} src - The Mesh object being rendered.
* @param {integer} meshLength - The number of vertices in the mesh.
* @param {number[]} verts - An array of translated vertex coordinates.
* @param {Phaser.Geom.Mesh.Face[]} faces - An array of Faces.
*/
renderDebugVerts: function (src, meshLength, verts)
renderDebug: function (src, faces)
{
var graphic = src.debugGraphic;
for (var i = 0; i < meshLength; i += 6)
for (var i = 0; i < faces.length; i++)
{
var x0 = verts[i + 0];
var y0 = verts[i + 1];
var x1 = verts[i + 2];
var y1 = verts[i + 3];
var x2 = verts[i + 4];
var y2 = verts[i + 5];
var face = faces[i];
var x0 = face.vertex1.tx;
var y0 = face.vertex1.ty;
var x1 = face.vertex2.tx;
var y1 = face.vertex2.ty;
var x2 = face.vertex3.tx;
var y2 = face.vertex3.ty;
graphic.strokeTriangle(x0, y0, x1, y1, x2, y2);
}

13
src/gameobjects/mesh/MeshWebGLRenderer.js
View file

@ -43,8 +43,8 @@ var MeshWebGLRenderer = function (renderer, src, camera, parentMatrix)
var tintEffect = src.tintFill;
var debugFaces = [];
var debugCallback = src.debugCallback;
var debugVerts = [];
var a = calcMatrix.a;
var b = calcMatrix.b;
@ -85,14 +85,7 @@ var MeshWebGLRenderer = function (renderer, src, camera, parentMatrix)
if (debugCallback)
{
debugVerts.push(
F32[vertexOffset - 20],
F32[vertexOffset - 19],
F32[vertexOffset - 13],
F32[vertexOffset - 12],
F32[vertexOffset - 6],
F32[vertexOffset - 5]
);
debugFaces.push(face);
}
}
@ -100,7 +93,7 @@ var MeshWebGLRenderer = function (renderer, src, camera, parentMatrix)
if (debugCallback)
{
debugCallback.call(src, src, src.vertices.length * 2, debugVerts);
debugCallback.call(src, src, debugFaces);
}
};