💿🐜 Antkeeper source code
https://antkeeper.com
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399 lines
13 KiB
399 lines
13 KiB
/*
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* Copyright (C) 2021 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 "game/states/brood.hpp"
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#include "entity/archetype.hpp"
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#include "entity/commands.hpp"
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#include "entity/components/observer.hpp"
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#include "entity/components/camera.hpp"
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#include "entity/components/terrain.hpp"
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#include "entity/components/transform.hpp"
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#include "entity/components/chamber.hpp"
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#include "entity/components/constraints/spring-to.hpp"
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#include "entity/components/constraints/three-dof.hpp"
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#include "entity/components/constraint-stack.hpp"
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#include "animation/screen-transition.hpp"
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#include "animation/ease.hpp"
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#include "resources/resource-manager.hpp"
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#include "render/passes/sky-pass.hpp"
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#include "application.hpp"
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#include <iostream>
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namespace game {
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namespace state {
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namespace brood {
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static void setup_nest(game::context* ctx);
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static void setup_ants(game::context* ctx);
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static void setup_camera(game::context* ctx);
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static void setup_controls(game::context* ctx);
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void enter(game::context* ctx)
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{
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setup_nest(ctx);
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setup_ants(ctx);
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setup_camera(ctx);
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setup_controls(ctx);
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ctx->underground_ambient_light->set_intensity(1.0f);
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// Create larva
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{
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entity::archetype* larva_archetype = ctx->resource_manager->load<entity::archetype>("ant-larva.ent");
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auto larva_eid = larva_archetype->create(*ctx->entity_registry);
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entity::command::warp_to(*ctx->entity_registry, larva_eid, {0.0f, 0.0f, 0.0f});
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entity::command::assign_render_layers(*ctx->entity_registry, larva_eid, 0b1);
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}
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// Create cocoon
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{
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entity::archetype* cocoon_archetype = ctx->resource_manager->load<entity::archetype>("ant-cocoon.ent");
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auto cocoon_eid = cocoon_archetype->create(*ctx->entity_registry);
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entity::command::warp_to(*ctx->entity_registry, cocoon_eid, {-50, 0.1935f, 0});
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entity::command::assign_render_layers(*ctx->entity_registry, cocoon_eid, 0b1);
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}
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// Reset tweening
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ctx->underground_scene->update_tweens();
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// Start fade in
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ctx->fade_transition->transition(1.0f, true, ease<float>::in_quad);
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}
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void exit(game::context* ctx)
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{}
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void setup_nest(game::context* ctx)
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{
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// Create nest central shaft entity
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if (!ctx->entities.count("shaft"))
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{
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entity::id shaft_eid = ctx->entity_registry->create();
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ctx->entities["shaft"] = shaft_eid;
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entity::component::transform transform;
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transform.local = math::identity_transform<float>;
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transform.world = transform.local;
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transform.warp = true;
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ctx->entity_registry->assign<entity::component::transform>(shaft_eid, transform);
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}
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// Create nest lobby chamber entity
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if (!ctx->entities.count("lobby"))
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{
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entity::id lobby_eid = ctx->entity_registry->create();
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ctx->entities["lobby"] = lobby_eid;
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entity::component::chamber chamber;
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chamber.shaft_eid = ctx->entities["shaft"];
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chamber.distance = 10.0f;
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chamber.previous_chamber_eid = entt::null;
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chamber.next_chamber_eid = entt::null;
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}
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}
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void setup_ants(game::context* ctx)
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{
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// Create queen ant entity
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if (!ctx->entities.count("queen"))
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{
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entity::id queen_eid = ctx->entity_registry->create();
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ctx->entities["queen"] = queen_eid;
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}
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}
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void setup_camera(game::context* ctx)
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{
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// Switch to underground camera
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ctx->surface_camera->set_active(false);
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ctx->underground_camera->set_active(true);
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// Create underground camera entity
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if (!ctx->entities.count("underground_cam"))
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{
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// Create camera target entity
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entity::id target_eid = ctx->entity_registry->create();
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ctx->entities["underground_cam_target"] = target_eid;
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{
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// Transform
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entity::component::transform target_transform;
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target_transform.local = math::identity_transform<float>;
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target_transform.world = target_transform.local;
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target_transform.warp = true;
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ctx->entity_registry->assign<entity::component::transform>(target_eid, target_transform);
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}
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// Create camera entity
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entity::id camera_eid = ctx->entity_registry->create();
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ctx->entities["underground_cam"] = camera_eid;
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// Create camera transform component
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entity::component::transform transform;
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transform.local = math::identity_transform<float>;
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transform.world = transform.local;
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transform.warp = true;
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ctx->entity_registry->assign<entity::component::transform>(camera_eid, transform);
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// Create camera camera component
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entity::component::camera camera;
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camera.object = ctx->underground_camera;
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ctx->entity_registry->assign<entity::component::camera>(camera_eid, camera);
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// Create camera 3DOF constraint entity
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entity::id three_dof_constraint_eid = ctx->entity_registry->create();
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ctx->entities["underground_cam_3dof"] = three_dof_constraint_eid;
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{
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// Create 3DOF to constraint
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entity::component::constraint::three_dof three_dof;
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three_dof.yaw = 0.0f;
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three_dof.pitch = 0.0f;
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three_dof.roll = 0.0f;
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ctx->entity_registry->assign<entity::component::constraint::three_dof>(three_dof_constraint_eid, three_dof);
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// Create constraint stack node component
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entity::component::constraint_stack_node node;
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node.active = true;
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node.weight = 1.0f;
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node.next = entt::null;
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ctx->entity_registry->assign<entity::component::constraint_stack_node>(three_dof_constraint_eid, node);
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}
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// Create camera spring to constraint entity
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entity::id spring_constraint_eid = ctx->entity_registry->create();
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{
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// Create spring to constraint
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entity::component::constraint::spring_to spring;
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spring.target = target_eid;
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spring.translation = {{0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}, {0.0f, 0.0f, 0.0f}, 1.0f, math::two_pi<float>};
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spring.translation.w = hz_to_rads(8.0f);
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spring.spring_translation = true;
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spring.spring_rotation = false;
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ctx->entity_registry->assign<entity::component::constraint::spring_to>(spring_constraint_eid, spring);
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// Create constraint stack node component
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entity::component::constraint_stack_node node;
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node.active = true;
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node.weight = 1.0f;
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node.next = three_dof_constraint_eid;
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ctx->entity_registry->assign<entity::component::constraint_stack_node>(spring_constraint_eid, node);
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}
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// Create camera constraint stack component
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entity::component::constraint_stack constraint_stack;
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constraint_stack.head = spring_constraint_eid;
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ctx->entity_registry->assign<entity::component::constraint_stack>(camera_eid, constraint_stack);
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}
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ctx->underground_camera->set_exposure(0.0f);
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}
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void setup_controls(game::context* ctx)
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{
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// Get underground camera entity
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entity::id camera_eid = ctx->entities["underground_cam"];
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entity::id target_eid = ctx->entities["underground_cam_target"];
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entity::id three_dof_eid = ctx->entities["underground_cam_3dof"];
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const float dolly_speed = 20.0f;
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const float truck_speed = dolly_speed;
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const float pedestal_speed = 30.0f;
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const float pan_speed = math::radians(8.0f);
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const float tilt_speed = pan_speed;
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const input::control* move_slow = ctx->controls["move_slow"];
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const input::control* move_fast = ctx->controls["move_fast"];
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const input::control* mouse_rotate = ctx->controls["mouse_rotate"];
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ctx->controls["dolly_forward"]->set_active_callback
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(
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[ctx, target_eid, three_dof_eid, truck_speed, move_slow, move_fast](float value)
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{
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if (move_slow->is_active())
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value *= 0.5f;
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if (move_fast->is_active())
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value *= 2.0f;
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auto& three_dof = ctx->entity_registry->get<entity::component::constraint::three_dof>(three_dof_eid);
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const math::quaternion<float> yaw = math::angle_axis(three_dof.yaw, {0.0f, 1.0f, 0.0f});
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const float3 movement = {0.0f, 0.0f, -truck_speed * value * (1.0f / 60.0f)};
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entity::command::translate(*ctx->entity_registry, target_eid, yaw * movement);
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}
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);
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// Dolly backward
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ctx->controls["dolly_backward"]->set_active_callback
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(
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[ctx, target_eid, three_dof_eid, truck_speed, move_slow, move_fast](float value)
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{
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if (move_slow->is_active())
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value *= 0.5f;
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if (move_fast->is_active())
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value *= 2.0f;
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auto& three_dof = ctx->entity_registry->get<entity::component::constraint::three_dof>(three_dof_eid);
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const math::quaternion<float> yaw = math::angle_axis(three_dof.yaw, {0.0f, 1.0f, 0.0f});
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const float3 movement = {0.0f, 0.0f, truck_speed * value * (1.0f / 60.0f)};
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entity::command::translate(*ctx->entity_registry, target_eid, yaw * movement);
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}
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);
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// Truck right
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ctx->controls["truck_right"]->set_active_callback
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(
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[ctx, target_eid, three_dof_eid, truck_speed, move_slow, move_fast](float value)
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{
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if (move_slow->is_active())
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value *= 0.5f;
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if (move_fast->is_active())
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value *= 2.0f;
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auto& three_dof = ctx->entity_registry->get<entity::component::constraint::three_dof>(three_dof_eid);
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const math::quaternion<float> yaw = math::angle_axis(three_dof.yaw, {0.0f, 1.0f, 0.0f});
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const float3 movement = {truck_speed * value * (1.0f / 60.0f), 0.0f, 0.0f};
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entity::command::translate(*ctx->entity_registry, target_eid, yaw * movement);
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}
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);
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// Truck left
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ctx->controls["truck_left"]->set_active_callback
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(
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[ctx, target_eid, three_dof_eid, truck_speed, move_slow, move_fast](float value)
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{
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if (move_slow->is_active())
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value *= 0.5f;
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if (move_fast->is_active())
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value *= 2.0f;
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auto& three_dof = ctx->entity_registry->get<entity::component::constraint::three_dof>(three_dof_eid);
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const math::quaternion<float> yaw = math::angle_axis(three_dof.yaw, {0.0f, 1.0f, 0.0f});
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const float3 movement = {-truck_speed * value * (1.0f / 60.0f), 0.0f, 0.0f};
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entity::command::translate(*ctx->entity_registry, target_eid, yaw * movement);
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}
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);
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// Pedestal up
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ctx->controls["pedestal_up"]->set_active_callback
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(
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[ctx, target_eid, pedestal_speed, move_slow, move_fast](float value)
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{
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if (move_slow->is_active())
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value *= 0.5f;
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if (move_fast->is_active())
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value *= 2.0f;
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const float3 movement = {0.0f, pedestal_speed * value * (1.0f / 60.0f), 0.0f};
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entity::command::translate(*ctx->entity_registry, target_eid, movement);
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}
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);
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// Pedestal down
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ctx->controls["pedestal_down"]->set_active_callback
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(
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[ctx, target_eid, pedestal_speed, move_slow, move_fast](float value)
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{
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if (move_slow->is_active())
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value *= 0.5f;
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if (move_fast->is_active())
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value *= 2.0f;
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const float3 movement = {0.0f, -pedestal_speed * value * (1.0f / 60.0f), 0.0f};
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entity::command::translate(*ctx->entity_registry, target_eid, movement);
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}
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);
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// Mouse rotate
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ctx->controls["mouse_rotate"]->set_activated_callback
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(
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[ctx]()
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{
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ctx->app->set_relative_mouse_mode(true);
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}
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);
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ctx->controls["mouse_rotate"]->set_deactivated_callback
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(
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[ctx]()
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{
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ctx->app->set_relative_mouse_mode(false);
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}
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);
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// Pan left
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ctx->controls["pan_left_mouse"]->set_active_callback
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(
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[ctx, three_dof_eid, pan_speed, mouse_rotate](float value)
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{
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if (!mouse_rotate->is_active())
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return;
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auto& three_dof = ctx->entity_registry->get<entity::component::constraint::three_dof>(three_dof_eid);
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three_dof.yaw += pan_speed * value * (1.0f / 60.0f);
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}
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);
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// Pan right
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ctx->controls["pan_right_mouse"]->set_active_callback
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(
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[ctx, three_dof_eid, pan_speed, mouse_rotate](float value)
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{
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if (!mouse_rotate->is_active())
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return;
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auto& three_dof = ctx->entity_registry->get<entity::component::constraint::three_dof>(three_dof_eid);
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three_dof.yaw -= pan_speed * value * (1.0f / 60.0f);
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}
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);
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// Tilt up
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ctx->controls["tilt_up_mouse"]->set_active_callback
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(
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[ctx, three_dof_eid, tilt_speed, mouse_rotate](float value)
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{
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if (!mouse_rotate->is_active())
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return;
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auto& three_dof = ctx->entity_registry->get<entity::component::constraint::three_dof>(three_dof_eid);
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three_dof.pitch -= tilt_speed * value * (1.0f / 60.0f);
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three_dof.pitch = std::max<float>(math::radians(-90.0f), three_dof.pitch);
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}
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);
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// Tilt down
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ctx->controls["tilt_down_mouse"]->set_active_callback
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(
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[ctx, three_dof_eid, tilt_speed, mouse_rotate](float value)
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{
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if (!mouse_rotate->is_active())
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return;
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auto& three_dof = ctx->entity_registry->get<entity::component::constraint::three_dof>(three_dof_eid);
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three_dof.pitch += tilt_speed * value * (1.0f / 60.0f);
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three_dof.pitch = std::min<float>(math::radians(90.0f), three_dof.pitch);
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}
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);
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}
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} // namespace brood
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} // namespace state
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} // namespace game
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