241 lines
5.0 KiB
TypeScript
241 lines
5.0 KiB
TypeScript
import { Texture } from "./types.ts";
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function push_vertex(
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vertices: Float32Array,
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i: number,
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px: number,
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py: number,
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pz: number,
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u: number,
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v: number,
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r: number,
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g: number,
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b: number,
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a: number,
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) {
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vertices[i++] = px;
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vertices[i++] = py;
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vertices[i++] = pz;
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vertices[i++] = u;
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vertices[i++] = v;
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vertices[i++] = r;
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vertices[i++] = g;
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vertices[i++] = b;
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vertices[i++] = a;
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return i;
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}
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export function push_front_face(
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vertices: Float32Array,
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i: number,
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texture: Texture,
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x: number,
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y: number,
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z: number,
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sx: number,
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sy: number,
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sw: number,
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sh: number,
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r = 1,
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g = 1,
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b = 1,
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a = 1,
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) {
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const x2 = x + 1;
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const y2 = y + 1;
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const z2 = z + 1;
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const u0 = sx / texture.width;
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const v0 = sy / texture.height;
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const u1 = (sx + sw) / texture.width;
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const v1 = (sy + sh) / texture.height;
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i = push_vertex(vertices, i, x, y, z2, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y, z2, u1, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y2, z2, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x, y, z2, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y2, z2, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x, y2, z2, u0, v0, r, g, b, a);
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return i;
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}
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export function push_back_face(
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vertices: Float32Array,
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i: number,
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texture: Texture,
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x: number,
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y: number,
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z: number,
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sx: number,
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sy: number,
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sw: number,
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sh: number,
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r = 1,
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g = 1,
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b = 1,
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a = 1,
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) {
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const x2 = x + 1;
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const y2 = y + 1;
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const u0 = sx / texture.width;
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const v0 = sy / texture.height;
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const u1 = (sx + sw) / texture.width;
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const v1 = (sy + sh) / texture.height;
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i = push_vertex(vertices, i, x2, y, z, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x, y, z, u1, v1, r, g, b, a);
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i = push_vertex(vertices, i, x, y2, z, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x2, y, z, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x, y2, z, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x2, y2, z, u0, v0, r, g, b, a);
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return i;
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}
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export function push_left_face(
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vertices: Float32Array,
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i: number,
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texture: Texture,
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x: number,
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y: number,
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z: number,
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sx: number,
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sy: number,
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sw: number,
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sh: number,
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r = 1,
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g = 1,
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b = 1,
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a = 1,
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) {
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const y2 = y + 1;
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const z2 = z + 1;
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const u0 = sx / texture.width;
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const v0 = sy / texture.height;
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const u1 = (sx + sw) / texture.width;
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const v1 = (sy + sh) / texture.height;
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i = push_vertex(vertices, i, x, y, z, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x, y, z2, u1, v1, r, g, b, a);
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i = push_vertex(vertices, i, x, y2, z2, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x, y, z, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x, y2, z2, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x, y2, z, u0, v0, r, g, b, a);
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return i;
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}
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export function push_right_face(
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vertices: Float32Array,
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i: number,
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texture: Texture,
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x: number,
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y: number,
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z: number,
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sx: number,
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sy: number,
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sw: number,
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sh: number,
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r = 1,
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g = 1,
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b = 1,
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a = 1,
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) {
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const x2 = x + 1;
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const y2 = y + 1;
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const z2 = z + 1;
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const u0 = sx / texture.width;
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const v0 = sy / texture.height;
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const u1 = (sx + sw) / texture.width;
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const v1 = (sy + sh) / texture.height;
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i = push_vertex(vertices, i, x2, y, z2, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y, z, u1, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y2, z, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x2, y, z2, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y2, z, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x2, y2, z2, u0, v0, r, g, b, a);
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return i;
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}
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export function push_top_face(
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vertices: Float32Array,
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i: number,
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texture: Texture,
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x: number,
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y: number,
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z: number,
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sx: number,
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sy: number,
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sw: number,
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sh: number,
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r = 1,
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g = 1,
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b = 1,
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a = 1,
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) {
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const x2 = x + 1;
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const z2 = z + 1;
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const y2 = y + 1;
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const u0 = sx / texture.width;
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const v0 = sy / texture.height;
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const u1 = (sx + sw) / texture.width;
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const v1 = (sy + sh) / texture.height;
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i = push_vertex(vertices, i, x, y2, z2, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y2, z2, u1, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y2, z, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x, y2, z2, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y2, z, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x, y2, z, u0, v0, r, g, b, a);
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return i;
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}
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export function push_bottom_face(
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vertices: Float32Array,
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i: number,
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texture: Texture,
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x: number,
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y: number,
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z: number,
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sx: number,
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sy: number,
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sw: number,
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sh: number,
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r = 1,
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g = 1,
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b = 1,
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a = 1,
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) {
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const x2 = x + 1;
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const z2 = z + 1;
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const u0 = sx / texture.width;
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const v0 = sy / texture.height;
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const u1 = (sx + sw) / texture.width;
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const v1 = (sy + sh) / texture.height;
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i = push_vertex(vertices, i, x, y, z, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y, z, u1, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y, z2, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x, y, z, u0, v1, r, g, b, a);
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i = push_vertex(vertices, i, x2, y, z2, u1, v0, r, g, b, a);
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i = push_vertex(vertices, i, x, y, z2, u0, v0, r, g, b, a);
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return i;
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}
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