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powerups.js
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powerups.js
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class Jetpack {
init(gl, pos){
this.pos = pos;
this.rotation = 0
this.texture = loadTexture(gl, './textures/jetpack.jpg');
this.positionBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, this.positionBuffer);
this.positions = [
// Front face
-0.3, -0.3, 0.3,
0.3, -0.3, 0.3,
0.3, 0.3, 0.3,
-0.3, 0.3, 0.3,
// Back face
-0.3, -0.3, -0.3,
0.3, -0.3, -0.3,
0.3, 0.3, -0.3,
-0.3, 0.3, -0.3,
// Top face
-0.3, 0.3, -0.3,
-0.3, 0.3, 0.3,
0.3, 0.3, 0.3,
0.3, 0.3, -0.3,
// Bottom face
-0.3, -0.3, -0.3,
0.3, -0.3, -0.3,
0.3, -0.3, 0.3,
-0.3, -0.3, 0.3,
// Right face
0.3, -0.3, -0.3,
0.3, 0.3, -0.3,
0.3, 0.3, 0.3,
0.3, -0.3, 0.3,
// Left face
-0.3, -0.3, -0.3,
-0.3, 0.3, -0.3,
-0.3, 0.3, 0.3,
-0.3, -0.3, 0.3,
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(this.positions), gl.STATIC_DRAW);
///////////////////////////////
this.normalBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, this.normalBuffer);
this.vertexNormals = [
// Front
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
// Back
0.0, 0.0, -1.0,
0.0, 0.0, -1.0,
0.0, 0.0, -1.0,
0.0, 0.0, -1.0,
// Top
0.0, 1.0, 0.0,
0.0, 1.0, 0.0,
0.0, 1.0, 0.0,
0.0, 1.0, 0.0,
// Bottom
0.0, -1.0, 0.0,
0.0, -1.0, 0.0,
0.0, -1.0, 0.0,
0.0, -1.0, 0.0,
// Right
1.0, 0.0, 0.0,
1.0, 0.0, 0.0,
1.0, 0.0, 0.0,
1.0, 0.0, 0.0,
// Left
-1.0, 0.0, 0.0,
-1.0, 0.0, 0.0,
-1.0, 0.0, 0.0,
-1.0, 0.0, 0.0
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(this.vertexNormals),
gl.STATIC_DRAW);
/////////////////////////////
this.textureCoordBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, this.textureCoordBuffer);
this.textureCoordinates = [
// Front
1.0, 1.0,
0.0, 1.0,
0.0, 0.0,
1.0, 0.0,
// Front
1.0, 1.0,
0.0, 1.0,
0.0, 0.0,
1.0, 0.0,
// Top
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
0.0, 1.0,
// Bottom
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
0.0, 1.0,
// Right
0.0, 1.0,
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
// left
0.0, 1.0,
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(this.textureCoordinates),
gl.STATIC_DRAW);
///////////////////////////////////////////
this.indexBuffer = gl.createBuffer();
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.indexBuffer);
this.indices = [
0, 1, 2, 0, 2, 3, // front
4, 5, 6, 4, 6, 7, // back
8, 9, 10, 8, 10, 11, // top
12, 13, 14, 12, 14, 15, // bottom
16, 17, 18, 16, 18, 19, // right
20, 21, 22, 20, 22, 23, // left
];
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER,
new Uint16Array(this.indices), gl.STATIC_DRAW);
}
draw(gl, deltaTime, projectionMatrix, viewMatrix, programInfo){
var modelMatrix = mat4.create();
// this.pos[2]+=0.1;
mat4.translate(modelMatrix,modelMatrix,this.pos);
this.rotation += Math.PI / (((Math.random()) % 100) + 50)
mat4.rotate(modelMatrix, modelMatrix, this.rotation, [0,1,0]);
var modelViewMatrix = mat4.create();
mat4.multiply(modelViewMatrix, viewMatrix, modelMatrix);
{
const numComponents = 3;
const type = gl.FLOAT;
const normalize = false;
const stride = 0;
const offset = 0;
gl.bindBuffer(gl.ARRAY_BUFFER, this.positionBuffer);
gl.vertexAttribPointer(
programInfo.attribLocations.vertexPosition,
numComponents,
type,
normalize,
stride,
offset);
gl.enableVertexAttribArray(
programInfo.attribLocations.vertexPosition);
}
// Tell WebGL how to pull out the normals from
// the normal buffer into the vertexNormal attribute.
{
const numComponents = 3;
const type = gl.FLOAT;
const normalize = false;
const stride = 0;
const offset = 0;
gl.bindBuffer(gl.ARRAY_BUFFER, this.normalBuffer);
gl.vertexAttribPointer(
programInfo.attribLocations.vertexNormal,
numComponents,
type,
normalize,
stride,
offset);
gl.enableVertexAttribArray(
programInfo.attribLocations.vertexNormal);
}
{
const numComponents = 2;
const type = gl.FLOAT;
const normalize = false;
const stride = 0;
const offset = 0;
gl.bindBuffer(gl.ARRAY_BUFFER, this.textureCoordBuffer);
gl.vertexAttribPointer(
programInfo.attribLocations.textureCoord,
numComponents,
type,
normalize,
stride,
offset);
gl.enableVertexAttribArray(
programInfo.attribLocations.textureCoord);
}
const normalMatrix = mat4.create();
mat4.invert(normalMatrix, modelViewMatrix);
mat4.transpose(normalMatrix, normalMatrix);
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.indexBuffer);
gl.useProgram(programInfo.program);
gl.uniformMatrix4fv(
programInfo.uniformLocations.projectionMatrix,
false,
projectionMatrix);
gl.uniformMatrix4fv(
programInfo.uniformLocations.normalMatrix,
false,
normalMatrix);
gl.uniformMatrix4fv(
programInfo.uniformLocations.modelViewMatrix,
false,
modelViewMatrix);
gl.activeTexture(gl.TEXTURE0);
gl.bindTexture(gl.TEXTURE_2D, this.texture);
gl.uniform1i(programInfo.uniformLocations.uSampler, 0);
{
const vertexCount = 36;
const type = gl.UNSIGNED_SHORT;
const offset = 0;
gl.drawElements(gl.TRIANGLES, vertexCount, type, offset);
}
return gl;
}
}
class Jumper {
init(gl, pos){
this.pos = pos;
this.rotation = 0
this.texture = loadTexture(gl, './textures/jumpers.jpg');
this.positionBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, this.positionBuffer);
this.positions = [
// Front face
-0.25, -0.25, 0.25,
0.25, -0.25, 0.25,
0.25, 0.25, 0.25,
-0.25, 0.25, 0.25,
// Back face
-0.25, -0.25, -0.25,
0.25, -0.25, -0.25,
0.25, 0.25, -0.25,
-0.25, 0.25, -0.25,
// Top face
-0.25, 0.25, -0.25,
-0.25, 0.25, 0.25,
0.25, 0.25, 0.25,
0.25, 0.25, -0.25,
// Bottom face
-0.25, -0.25, -0.25,
0.25, -0.25, -0.25,
0.25, -0.25, 0.25,
-0.25, -0.25, 0.25,
// Right face
0.25, -0.25, -0.25,
0.25, 0.25, -0.25,
0.25, 0.25, 0.25,
0.25, -0.25, 0.25,
// Left face
-0.25, -0.25, -0.25,
-0.25, 0.25, -0.25,
-0.25, 0.25, 0.25,
-0.25, -0.25, 0.25,
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(this.positions), gl.STATIC_DRAW);
///////////////////////////////
this.normalBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, this.normalBuffer);
this.vertexNormals = [
// Front
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
0.0, 0.0, 1.0,
// Back
0.0, 0.0, -1.0,
0.0, 0.0, -1.0,
0.0, 0.0, -1.0,
0.0, 0.0, -1.0,
// Top
0.0, 1.0, 0.0,
0.0, 1.0, 0.0,
0.0, 1.0, 0.0,
0.0, 1.0, 0.0,
// Bottom
0.0, -1.0, 0.0,
0.0, -1.0, 0.0,
0.0, -1.0, 0.0,
0.0, -1.0, 0.0,
// Right
1.0, 0.0, 0.0,
1.0, 0.0, 0.0,
1.0, 0.0, 0.0,
1.0, 0.0, 0.0,
// Left
-1.0, 0.0, 0.0,
-1.0, 0.0, 0.0,
-1.0, 0.0, 0.0,
-1.0, 0.0, 0.0
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(this.vertexNormals),
gl.STATIC_DRAW);
/////////////////////////////
this.textureCoordBuffer = gl.createBuffer();
gl.bindBuffer(gl.ARRAY_BUFFER, this.textureCoordBuffer);
this.textureCoordinates = [
// Front
1.0, 1.0,
0.0, 1.0,
0.0, 0.0,
1.0, 0.0,
// Front
1.0, 1.0,
0.0, 1.0,
0.0, 0.0,
1.0, 0.0,
// Top
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
0.0, 1.0,
// Bottom
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
0.0, 1.0,
// Right
0.0, 1.0,
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
// left
0.0, 1.0,
0.0, 0.0,
1.0, 0.0,
1.0, 1.0,
];
gl.bufferData(gl.ARRAY_BUFFER, new Float32Array(this.textureCoordinates),
gl.STATIC_DRAW);
///////////////////////////////////////////
this.indexBuffer = gl.createBuffer();
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.indexBuffer);
this.indices = [
0, 1, 2, 0, 2, 3, // front
4, 5, 6, 4, 6, 7, // back
8, 9, 10, 8, 10, 11, // top
12, 13, 14, 12, 14, 15, // bottom
16, 17, 18, 16, 18, 19, // right
20, 21, 22, 20, 22, 23, // left
];
gl.bufferData(gl.ELEMENT_ARRAY_BUFFER,
new Uint16Array(this.indices), gl.STATIC_DRAW);
}
draw(gl, deltaTime, projectionMatrix, viewMatrix, programInfo){
var modelMatrix = mat4.create();
// this.pos[2]+=0.1;
mat4.translate(modelMatrix,modelMatrix,this.pos);
this.rotation += Math.PI / (((Math.random()) % 100) + 50)
mat4.rotate(modelMatrix, modelMatrix, this.rotation, [0,1,0]);
var modelViewMatrix = mat4.create();
mat4.multiply(modelViewMatrix, viewMatrix, modelMatrix);
{
const numComponents = 3;
const type = gl.FLOAT;
const normalize = false;
const stride = 0;
const offset = 0;
gl.bindBuffer(gl.ARRAY_BUFFER, this.positionBuffer);
gl.vertexAttribPointer(
programInfo.attribLocations.vertexPosition,
numComponents,
type,
normalize,
stride,
offset);
gl.enableVertexAttribArray(
programInfo.attribLocations.vertexPosition);
}
// Tell WebGL how to pull out the normals from
// the normal buffer into the vertexNormal attribute.
{
const numComponents = 3;
const type = gl.FLOAT;
const normalize = false;
const stride = 0;
const offset = 0;
gl.bindBuffer(gl.ARRAY_BUFFER, this.normalBuffer);
gl.vertexAttribPointer(
programInfo.attribLocations.vertexNormal,
numComponents,
type,
normalize,
stride,
offset);
gl.enableVertexAttribArray(
programInfo.attribLocations.vertexNormal);
}
{
const numComponents = 2;
const type = gl.FLOAT;
const normalize = false;
const stride = 0;
const offset = 0;
gl.bindBuffer(gl.ARRAY_BUFFER, this.textureCoordBuffer);
gl.vertexAttribPointer(
programInfo.attribLocations.textureCoord,
numComponents,
type,
normalize,
stride,
offset);
gl.enableVertexAttribArray(
programInfo.attribLocations.textureCoord);
}
const normalMatrix = mat4.create();
mat4.invert(normalMatrix, modelViewMatrix);
mat4.transpose(normalMatrix, normalMatrix);
gl.bindBuffer(gl.ELEMENT_ARRAY_BUFFER, this.indexBuffer);
gl.useProgram(programInfo.program);
gl.uniformMatrix4fv(
programInfo.uniformLocations.projectionMatrix,
false,
projectionMatrix);
gl.uniformMatrix4fv(
programInfo.uniformLocations.normalMatrix,
false,
normalMatrix);
gl.uniformMatrix4fv(
programInfo.uniformLocations.modelViewMatrix,
false,
modelViewMatrix);
gl.activeTexture(gl.TEXTURE0);
gl.bindTexture(gl.TEXTURE_2D, this.texture);
gl.uniform1i(programInfo.uniformLocations.uSampler, 0);
{
const vertexCount = 36;
const type = gl.UNSIGNED_SHORT;
const offset = 0;
gl.drawElements(gl.TRIANGLES, vertexCount, type, offset);
}
return gl;
}
}