mirror of
https://github.com/MihailRis/voxelcore.git
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109 lines
2.9 KiB
C++
109 lines
2.9 KiB
C++
#include "TextsRenderer.hpp"
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#include "TextNote.hpp"
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#include "maths/util.hpp"
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#include "assets/Assets.hpp"
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#include "window/Camera.hpp"
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#include "maths/FrustumCulling.hpp"
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#include "graphics/core/Font.hpp"
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#include "graphics/core/Batch3D.hpp"
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#include "graphics/core/Shader.hpp"
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#include "presets/NotePreset.hpp"
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TextsRenderer::TextsRenderer(
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Batch3D& batch, const Assets& assets, const Frustum& frustum
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)
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: batch(batch), assets(assets), frustum(frustum) {
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}
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void TextsRenderer::renderText(
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const TextNote& note,
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const DrawContext& context,
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const Camera& camera,
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const EngineSettings& settings,
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bool hudVisible
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) {
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const auto& text = note.getText();
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const auto& preset = note.getPreset();
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const auto& pos = note.getPosition();
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if (util::distance2(pos, camera.position) >
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util::sqr(preset.renderDistance / camera.zoom)) {
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return;
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}
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// Projected notes are displayed on the front layer only
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if (preset.displayMode == NoteDisplayMode::PROJECTED) {
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return;
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}
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auto& font = assets.require<Font>("normal");
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glm::vec3 xvec {1, 0, 0};
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glm::vec3 yvec {0, 1, 0};
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int width = font.calcWidth(text, text.length());
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if (preset.displayMode == NoteDisplayMode::Y_FREE_BILLBOARD ||
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preset.displayMode == NoteDisplayMode::XY_FREE_BILLBOARD) {
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xvec = camera.position - pos;
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xvec.y = 0;
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std::swap(xvec.x, xvec.z);
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xvec.z *= -1;
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xvec = glm::normalize(xvec);
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if (preset.displayMode == NoteDisplayMode::XY_FREE_BILLBOARD) {
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yvec = camera.up;
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}
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}
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if (preset.displayMode != NoteDisplayMode::PROJECTED) {
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if (!frustum.isBoxVisible(pos - xvec * (width * 0.5f),
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pos + xvec * (width * 0.5f))) {
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return;
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}
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}
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batch.setColor(preset.color);
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font.draw(
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batch,
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text,
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pos - xvec * (width * 0.5f) * preset.scale,
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xvec * preset.scale,
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yvec * preset.scale
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);
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}
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void TextsRenderer::renderTexts(
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const DrawContext& context,
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const Camera& camera,
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const EngineSettings& settings,
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bool hudVisible,
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bool frontLayer
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) {
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auto& shader = assets.require<Shader>("ui3d");
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shader.use();
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shader.uniformMatrix("u_projview", camera.getProjView());
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shader.uniformMatrix("u_apply", glm::mat4(1.0f));
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batch.begin();
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for (const auto& [id, note] : notes) {
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renderText(*note, context, camera, settings, hudVisible);
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}
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batch.flush();
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}
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u64id_t TextsRenderer::add(std::unique_ptr<TextNote> note) {
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u64id_t uid = nextNote++;
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notes[uid] = std::move(note);
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return uid;
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}
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TextNote* TextsRenderer::get(u64id_t id) const {
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const auto& found = notes.find(id);
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if (found == notes.end()) {
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return nullptr;
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}
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return found->second.get();
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}
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void TextsRenderer::remove(u64id_t id) {
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notes.erase(id);
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}
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