101 lines
2.5 KiB
TypeScript
101 lines
2.5 KiB
TypeScript
import { flush_batch, get_current_texture, push_vertex, set_current_texture } from "./core.ts";
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import { Texture } from "./types.ts";
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export function push_cube(
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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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w: number,
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h: number,
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d: 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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front = true,
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back = true,
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left = true,
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right = true,
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top = true,
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bottom = true,
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) {
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if (get_current_texture() !== texture.tex) {
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flush_batch();
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set_current_texture(texture.tex);
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}
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const x2 = x + w;
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const y2 = y + h;
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const z2 = z + d;
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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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// front (+z)
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if (front) {
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push_vertex(x, y, z2, u0, v0, r, g, b, a);
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push_vertex(x2, y, z2, u1, v0, r, g, b, a);
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push_vertex(x, y2, z2, u0, v1, r, g, b, a);
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push_vertex(x2, y, z2, u1, v0, r, g, b, a);
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push_vertex(x2, y2, z2, u1, v1, r, g, b, a);
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push_vertex(x, y2, z2, u0, v1, r, g, b, a);
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}
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// back (-z)
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if (back) {
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push_vertex(x2, y, z, u0, v0, r, g, b, a);
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push_vertex(x, y, z, u1, v0, r, g, b, a);
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push_vertex(x2, y2, z, u0, v1, r, g, b, a);
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push_vertex(x, y, z, u1, v0, r, g, b, a);
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push_vertex(x, y2, z, u1, v1, r, g, b, a);
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push_vertex(x2, y2, z, u0, v1, r, g, b, a);
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}
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// left (-x)
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if (left) {
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push_vertex(x, y, z, u0, v0, r, g, b, a);
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push_vertex(x, y, z2, u1, v0, r, g, b, a);
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push_vertex(x, y2, z, u0, v1, r, g, b, a);
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push_vertex(x, y, z2, u1, v0, r, g, b, a);
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push_vertex(x, y2, z2, u1, v1, r, g, b, a);
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push_vertex(x, y2, z, u0, v1, r, g, b, a);
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}
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// right (+x)
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if (right) {
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push_vertex(x2, y, z2, u0, v0, r, g, b, a);
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push_vertex(x2, y, z, u1, v0, r, g, b, a);
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push_vertex(x2, y2, z2, u0, v1, r, g, b, a);
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push_vertex(x2, y, z, u1, v0, r, g, b, a);
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push_vertex(x2, y2, z, u1, v1, r, g, b, a);
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push_vertex(x2, y2, z2, u0, v1, r, g, b, a);
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}
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// top (+y)
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if (top) {
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push_vertex(x, y2, z2, u0, v0, r, g, b, a);
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push_vertex(x2, y2, z2, u1, v0, r, g, b, a);
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push_vertex(x, y2, z, u0, v1, r, g, b, a);
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push_vertex(x2, y2, z2, u1, v0, r, g, b, a);
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push_vertex(x2, y2, z, u1, v1, r, g, b, a);
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push_vertex(x, y2, z, u0, v1, r, g, b, a);
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}
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// bottom (-y)
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if (bottom) {
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push_vertex(x, y, z, u0, v0, r, g, b, a);
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push_vertex(x2, y, z, u1, v0, r, g, b, a);
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push_vertex(x, y, z2, u0, v1, r, g, b, a);
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push_vertex(x2, y, z, u1, v0, r, g, b, a);
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push_vertex(x2, y, z2, u1, v1, r, g, b, a);
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push_vertex(x, y, z2, u0, v1, r, g, b, a);
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}
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}
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