137 lines
3.5 KiB
C++
137 lines
3.5 KiB
C++
#include "entityview.hpp"
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#include <iostream>
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#include "worldview.hpp"
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#include "assets/cache.hpp"
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game::view::EntityView::EntityView(WorldView& world, net::InMessage& msg) :
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world_(world),
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audioplayer_(world_.GetAudioMaster()),
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nametag_text_(assets::CacheManager::GetFont("data/comic32.font"), 0xFFFFFFFF)
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{
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// read nametag and attachment info
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if (!ReadNametag(msg) || !ReadAttach(msg))
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throw EntityInitError();
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}
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bool game::view::EntityView::ProcessMsg(net::EntMsgType type, net::InMessage& msg)
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{
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switch (type)
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{
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case net::EMSG_NAMETAG:
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return ReadNametag(msg);
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case net::EMSG_ATTACH:
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return ReadAttach(msg);
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default:
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return false;
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}
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}
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bool game::view::EntityView::TryUpdate(const UpdateInfo& info)
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{
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float time = world_.GetTime();
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if (time == upd_time_)
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return false;
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Update(info);
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return true;
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}
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void game::view::EntityView::Update(const UpdateInfo& info)
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{
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upd_time_ = world_.GetTime();
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// ensure parent is updated
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parent_ = nullptr;
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if (parentnum_)
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{
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parent_ = world_.GetEntity(parentnum_);
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if (parent_)
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parent_->TryUpdate(info);
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}
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// update transform parent
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root_.parent = parent_ ? &parent_->GetRoot() : nullptr;
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audioplayer_.Update();
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}
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void game::view::EntityView::Draw(const DrawArgs& args)
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{
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// std::cout << "TODO draw entity nametag: " << nametag_ << std::endl;
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DrawNametag(args);
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//DrawAxes(args);
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}
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bool game::view::EntityView::ReadNametag(net::InMessage& msg)
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{
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// read nametag
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net::NameTag nametag;
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if (!msg.Read(nametag))
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return false;
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nametag_ = nametag;
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nametag_text_.SetText(nametag);
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return true;
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}
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bool game::view::EntityView::ReadAttach(net::InMessage& msg)
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{
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return msg.Read(parentnum_);
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}
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void game::view::EntityView::DrawNametag(const DrawArgs& args)
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{
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if (nametag_.empty())
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return;
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// calc screen position
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glm::vec4 world_pos = glm::vec4(root_.local.position + glm::vec3(0.0f, 0.0f, 2.0f), 1.0f);
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glm::vec4 clip_pos = args.view_proj * world_pos;
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if (clip_pos.w == 0.0f)
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return;
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glm::vec3 ndc_pos = glm::vec3(clip_pos) / clip_pos.w;
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if (ndc_pos.z < -1.0f || ndc_pos.z > 1.0f)
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return; // behind camera
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nametag_pos_.anchor.x = ndc_pos.x * 0.5f + 0.5f;
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nametag_pos_.anchor.y = 1.0f - (ndc_pos.y * 0.5f + 0.5f); // flip y
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// center
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float scale = 0.7f;
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nametag_pos_.scale = glm::vec2(scale, -scale);
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nametag_pos_.pos = nametag_text_.GetSize() * glm::vec2(-0.5f, -1.0f) * scale;
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// static const glm::vec4 nametag_color = glm::vec4(1.0f, 1.0f, 1.0f, 1.0f);
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gfx::DrawHudCmd hudcmd;
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hudcmd.va = &nametag_text_.GetVA();
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hudcmd.texture = nametag_text_.GetFont()->GetTexture().get();
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hudcmd.pos = &nametag_pos_;
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// hudcmd.color = &nametag_color;
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args.dlist.AddHUD(hudcmd);
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// std::cout << "at position: " << root_.local.position.x << ", " << root_.local.position.y << ", " << root_.local.position.z << std::endl;
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}
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void game::view::EntityView::DrawAxes(const DrawArgs& args)
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{
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const float len = 5.0f;
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static const uint32_t colors[] = {0xFF0000FF, 0xFF00FF00, 0xFFFF0000};
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for (size_t i = 0; i < 3; i++)
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{
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glm::vec3 end(0.0f);
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end[i] = len;
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glm::vec3 beam_start = glm::vec3(root_.matrix * glm::vec4(0.0f, 0.0f, 0.0f, 1.0f));
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glm::vec3 beam_end = glm::vec3(root_.matrix * glm::vec4(end, 1.0f));
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args.dlist.AddBeam(beam_start, beam_end, colors[i], 0.05f);
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}
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}
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