💿🐜 Antkeeper source code
https://antkeeper.com
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299 lines
10 KiB
299 lines
10 KiB
/*
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* Copyright (C) 2017 Christopher J. Howard
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*
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* This file is part of Antkeeper Source Code.
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*
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* Antkeeper Source Code is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* Antkeeper Source Code is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with Antkeeper Source Code. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "main-menu-state.hpp"
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#include "title-state.hpp"
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#include "../application.hpp"
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#include "../debug.hpp"
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#include "../camera-controller.hpp"
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void drawShaft(LineBatcher* lineBatcher, const Shaft* shaft);
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void drawChamber(LineBatcher* lineBatcher, const Chamber* chamber)
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{
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float helixAngle = chamber->parent->getHelixAngle(chamber->relativeDepth);
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float minAngle = helixAngle - chamber->centralAngle * 0.5f;
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float maxAngle = helixAngle + chamber->centralAngle * 0.5f;
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// Find position on helix
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Vector3 helixPosition = chamber->parent->getHelixPosition(chamber->relativeDepth);
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helixPosition.y = -helixPosition.y;
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// Move annulus toward helix by the inner radius
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Vector3 helixDirection = glm::normalize(Vector3(std::cos(helixAngle), 0.0f, std::sin(helixAngle)));
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Vector3 offset = helixPosition - helixDirection * (chamber->innerRadius - chamber->parent->shaftRadius);
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int stepCount = 10;
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float angleStep = chamber->centralAngle / (float)stepCount;
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for (int i = 0; i < stepCount; ++i)
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{
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float angle0 = minAngle + angleStep * (float)i;
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float angle1 = minAngle + angleStep * (float)(i + 1);
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float x0 = std::cos(angle0);
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float z0 = std::sin(angle0);
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float x1 = std::cos(angle1);
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float z1 = std::sin(angle1);
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Vector3 innerStart;
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innerStart.x = x0 * chamber->innerRadius;
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innerStart.y = 0.0f;
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innerStart.z = z0 * chamber->innerRadius;
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Vector3 outerStart;
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outerStart.x = x0 * chamber->outerRadius;
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outerStart.y = 0.0f;
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outerStart.z = z0 * chamber->outerRadius;
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Vector3 innerEnd;
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innerEnd.x = x1 * chamber->innerRadius;
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innerEnd.y = 0.0f;
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innerEnd.z = z1 * chamber->innerRadius;
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Vector3 outerEnd;
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outerEnd.x = x1 * chamber->outerRadius;
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outerEnd.y = 0.0f;
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outerEnd.z = z1 * chamber->outerRadius;
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lineBatcher->draw(offset + innerStart, offset + innerEnd);
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lineBatcher->draw(offset + outerStart, offset + outerEnd);
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}
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Vector3 leftWallStart;
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leftWallStart.x = std::cos(minAngle) * chamber->innerRadius;
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leftWallStart.y = 0.0f;
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leftWallStart.z = std::sin(minAngle) * chamber->innerRadius;
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Vector3 leftWallEnd;
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leftWallEnd.x = std::cos(minAngle) * chamber->outerRadius;
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leftWallEnd.y = 0.0f;
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leftWallEnd.z = std::sin(minAngle) * chamber->outerRadius;
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Vector3 rightWallStart;
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rightWallStart.x = std::cos(maxAngle) * chamber->innerRadius;
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rightWallStart.y = 0.0f;
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rightWallStart.z = std::sin(maxAngle) * chamber->innerRadius;
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Vector3 rightWallEnd;
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rightWallEnd.x = std::cos(maxAngle) * chamber->outerRadius;
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rightWallEnd.y = 0.0f;
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rightWallEnd.z = std::sin(maxAngle) * chamber->outerRadius;
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lineBatcher->draw(offset + leftWallStart, offset + leftWallEnd);
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lineBatcher->draw(offset + rightWallStart, offset + rightWallEnd);
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if (chamber->child != nullptr)
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{
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drawShaft(lineBatcher, chamber->child);
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}
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}
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void drawShaft(LineBatcher* lineBatcher, const Shaft* shaft)
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{
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// Draw helix
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int stepCount = 50;
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float depthStep = shaft->shaftDepth / (float)stepCount;
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for (int i = 0; i < stepCount; ++i)
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{
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Vector3 start = shaft->getHelixPosition((float)i * depthStep);
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Vector3 end = shaft->getHelixPosition((float)(i + 1) * depthStep);
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start.y = -start.y;
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end.y = -end.y;
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lineBatcher->draw(start, end);
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}
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// Draw children
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for (const Chamber* chamber: shaft->children)
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{
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drawChamber(lineBatcher, chamber);
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}
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}
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void MainMenuState::generateNest()
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{
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NestParameters params;
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params.randomSeed = std::rand();
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params.maxShaftGeneration = 2;
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params.minShaftRadius = 0.0f;
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params.maxShaftRadius = 0.0f;
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params.minShaftDepth = 4.0f;
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params.maxShaftDepth = 6.0f;
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params.minShaftHelixRadius = 0.1f;
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params.maxShaftHelixRadius = 1.0f;
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params.minShaftHelixPitch = 0.25f;
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params.maxShaftHelixPitch = 0.75f;
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params.minShaftChamberCount = 1;
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params.maxShaftChamberCount = 5;
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params.minShaftChamberPitch = 0.5f;
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params.maxShaftChamberPitch = 2.0f;
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params.minChamberInnerRadius = 0.2f;
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params.maxChamberInnerRadius = 0.2f;
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params.minChamberOuterRadius = 0.5f;
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params.maxChamberOuterRadius = 0.5f;
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params.minChamberCentralAngle = glm::radians(240.0f);
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params.maxChamberCentralAngle = glm::radians(240.0f);
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nest.setParameters(params);
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nest.generate();
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// Draw nest
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application->lineBatcher->setColor(Vector4(1.0f));
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application->lineBatcher->setWidth(0.015f);
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application->lineBatcher->begin();
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drawShaft(application->lineBatcher, nest.getRootShaft());
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application->lineBatcher->end();
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}
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MainMenuState::MainMenuState(Application* application):
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ApplicationState(application)
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{}
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MainMenuState::~MainMenuState()
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{}
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void MainMenuState::enter()
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{
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// Open main menu
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application->enterMenu(0);
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application->menuSelectorLabel->setVisible(true);
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// Start fade-in
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application->blackoutImage->setVisible(true);
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application->fadeInTween->start();
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application->backgroundLayer->addObject(&application->bgCamera);
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application->backgroundLayer->addObject(&application->bgBatch);
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// Add nest
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application->defaultLayer->addObject(&application->nestModelInstance);
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application->surfaceCam->setCamera(&application->camera);
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application->surfaceCam->setFocalPoint(Vector3(-10.0f, -13.3f, 0.0f));
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application->surfaceCam->setFocalDistance(89.5f);
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application->surfaceCam->setElevation(glm::radians(15.0f));
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application->surfaceCam->setAzimuth(glm::radians(0.0f));
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application->surfaceCam->setTargetFocalPoint(application->surfaceCam->getFocalPoint());
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application->surfaceCam->setTargetFocalDistance(application->surfaceCam->getFocalDistance());
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application->surfaceCam->setTargetElevation(application->surfaceCam->getElevation());
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application->surfaceCam->setTargetAzimuth(application->surfaceCam->getAzimuth());
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application->surfaceCam->update(0.0f);
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// 3D camera
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application->camera.setPerspective(
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glm::radians(25.0f),
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(float)application->width / (float)application->height,
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0.1f,
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1000.0f);
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}
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void MainMenuState::execute()
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{
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// Navigate menu
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if (application->menuDown.isTriggered() && !application->menuDown.wasTriggered())
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{
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if (application->selectedMenuItemIndex < application->currentMenu->getItemCount() - 1)
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{
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application->selectMenuItem(application->selectedMenuItemIndex + 1);
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}
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else
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{
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application->selectMenuItem(0);
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}
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}
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else if (application->menuUp.isTriggered() && !application->menuUp.wasTriggered())
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{
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if (application->selectedMenuItemIndex > 0)
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{
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application->selectMenuItem(application->selectedMenuItemIndex - 1);
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}
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else
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{
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application->selectMenuItem(application->currentMenu->getItemCount() - 1);
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}
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}
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if (application->menuSelect.isTriggered() && !application->menuSelect.wasTriggered())
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{
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application->activateMenuItem(application->selectedMenuItemIndex);
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}
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else if (application->menuCancel.isTriggered() && !application->menuCancel.wasTriggered())
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{
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application->changeState(application->titleState);
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}
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float lineHeight = application->menuFont->getMetrics().getHeight();
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const UIContainer* container = application->menuContainers[application->currentMenuIndex];
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application->menuSelectorLabel->setTranslation(
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Vector2(container->getPosition().x - application->menuSelectorLabel->getDimensions().x * 1.5f,
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container->getPosition().y + lineHeight * 0.5f - application->menuSelectorLabel->getDimensions().y * 0.5f + lineHeight * application->selectedMenuItemIndex));
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// Move camera
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Vector2 movementVector(0.0f);
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if (application->cameraMoveLeft.isTriggered())
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movementVector.x -= application->cameraMoveLeft.getCurrentValue();
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if (application->cameraMoveRight.isTriggered())
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movementVector.x += application->cameraMoveRight.getCurrentValue();
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if (application->cameraMoveForward.isTriggered())
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movementVector.y -= application->cameraMoveForward.getCurrentValue();
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if (application->cameraMoveBack.isTriggered())
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movementVector.y += application->cameraMoveBack.getCurrentValue();
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if (movementVector.x != 0.0f || movementVector.y != 0.0f)
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{
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movementVector *= 0.005f * application->surfaceCam->getFocalDistance() * application->dt / (1.0f / 60.0f);
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application->surfaceCam->setTargetFocalPoint(application->surfaceCam->getTargetFocalPoint() + Vector3(movementVector.x, -movementVector.y, 0.0f));
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Vector3 focal = application->surfaceCam->getFocalPoint();
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std::cout << focal.x << ", " << focal.y << ", " << focal.z << "; " << application->surfaceCam->getFocalDistance() << std::endl;
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}
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// Zoom camera
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float zoomFactor = application->surfaceCam->getFocalDistance() / 20.0f * application->dt / (1.0f / 60.0f);
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if (application->cameraZoomIn.isTriggered())
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application->surfaceCam->zoom(zoomFactor * application->cameraZoomIn.getCurrentValue());
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if (application->cameraZoomOut.isTriggered())
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application->surfaceCam->zoom(-zoomFactor * application->cameraZoomOut.getCurrentValue());
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application->surfaceCam->update(application->dt);
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application->surfaceCam->setTargetAzimuth(application->surfaceCam->getTargetAzimuth() + glm::radians(2.0f) * application->dt);
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application->surfaceCam->update(application->dt);
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}
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void MainMenuState::exit()
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{
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// Hide UI
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application->menuSelectorLabel->setVisible(false);
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// Clear scene
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application->defaultLayer->removeObject(&application->nestModelInstance);
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application->backgroundLayer->removeObject(&application->bgCamera);
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application->backgroundLayer->removeObject(&application->bgBatch);
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}
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void MainMenuState::mouseButtonPressed(int button, int x, int y)
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{
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}
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void MainMenuState::mouseButtonReleased(int button, int x, int y)
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{
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}
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