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port to OOP

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41666 2023-10-01 11:43:31 -04:00
parent 7e8b1ad477
commit e33936a86b
15 changed files with 918 additions and 158 deletions
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64
html/lib/object.js Normal file
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@ -0,0 +1,64 @@
export class Object {
constructor(app) {
this.gl = app.gl;
this.app = app;
}
initBuffer(data, draw = this.gl.STATIC_DRAW) {
const buffer = this.gl.createBuffer();
this.gl.bindBuffer(this.gl.ARRAY_BUFFER, buffer);
this.gl.bufferData(this.gl.ARRAY_BUFFER, new Float32Array(data), draw);
return buffer;
}
attachShader(shader) {
this.shader = shader;
this.vertexPosition = shader.location("aVertexPosition");
this.textureCoord = shader.location("aTextureCoord");
this.gl.bindBuffer(this.gl.ARRAY_BUFFER, this.positionBuffer);
this.gl.vertexAttribPointer(
this.vertexPosition,
2,
this.gl.FLOAT,
false,
0,
0
);
this.gl.enableVertexAttribArray(this.vertexPosition);
this.gl.bindBuffer(this.gl.ARRAY_BUFFER, this.textureBuffer);
this.gl.vertexAttribPointer(
this.textureCoord,
2,
this.gl.FLOAT,
false,
0,
0
);
this.gl.enableVertexAttribArray(this.textureCoord);
return this;
}
draw2D() {
this.gl.bindBuffer(this.gl.ARRAY_BUFFER, this.positionBuffer);
this.shader.activate(this.app.projectionMatrix, this.app.modelViewMatrix);
this.gl.drawArrays(
this.gl.TRIANGLE_STRIP,
0,
this.vertexPositions.length / 2
);
}
draw3D() {
this.gl.bindBuffer(this.gl.ARRAY_BUFFER, this.positionBuffer);
this.shader.activate(this.app.projectionMatrix, this.app.modelViewMatrix);
this.gl.drawArrays(
this.gl.TRIANGLE_STRIP,
0,
this.vertexPositions.length / 3
);
}
}