💿🐜 Antkeeper source code
https://antkeeper.com
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161 lines
5.7 KiB
161 lines
5.7 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/splash.hpp"
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#include "game/states/title.hpp"
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#include "animation/screen-transition.hpp"
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#include "animation/animation.hpp"
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#include "animation/animator.hpp"
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#include "animation/ease.hpp"
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#include "animation/timeline.hpp"
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#include "application.hpp"
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#include "render/passes/clear-pass.hpp"
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namespace game {
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namespace state {
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namespace splash {
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void enter(game::context* ctx)
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{
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ctx->ui_clear_pass->set_cleared_buffers(true, true, false);
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// Load animation timing configuration
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double splash_fade_in_duration = 0.0;
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double splash_duration = 0.0;
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double splash_fade_out_duration = 0.0;
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if (ctx->config->contains("splash_fade_in_duration"))
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splash_fade_in_duration = (*ctx->config)["splash_fade_in_duration"].get<double>();
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if (ctx->config->contains("splash_duration"))
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splash_duration = (*ctx->config)["splash_duration"].get<double>();
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if (ctx->config->contains("splash_fade_out_duration"))
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splash_fade_out_duration = (*ctx->config)["splash_fade_out_duration"].get<double>();
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// Build splash fade in animation
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ctx->splash_fade_in_animation = new animation<float>();
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animation_channel<float>* splash_fade_in_opacity_channel = ctx->splash_fade_in_animation->add_channel(0);
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ctx->splash_fade_in_animation->set_interpolator(ease<float>::in_quad);
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splash_fade_in_opacity_channel->insert_keyframe({0.0, 0.0f});
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splash_fade_in_opacity_channel->insert_keyframe({splash_fade_in_duration, 1.0f});
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splash_fade_in_opacity_channel->insert_keyframe({splash_fade_in_duration + splash_duration, 1.0f});
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// Build splash fade out animation
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ctx->splash_fade_out_animation = new animation<float>();
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animation_channel<float>* splash_fade_out_opacity_channel = ctx->splash_fade_out_animation->add_channel(0);
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ctx->splash_fade_out_animation->set_interpolator(ease<float>::out_quad);
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splash_fade_out_opacity_channel->insert_keyframe({0.0, 1.0f});
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splash_fade_out_opacity_channel->insert_keyframe({splash_fade_out_duration, 0.0f});
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// Setup animation frame callbacks
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auto set_splash_opacity = [ctx](int channel, const float& opacity)
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{
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static_cast<render::material_property<float4>*>(ctx->splash_billboard_material->get_property("tint"))->set_value(float4{1, 1, 1, opacity});
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};
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ctx->splash_fade_in_animation->set_frame_callback(set_splash_opacity);
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ctx->splash_fade_out_animation->set_frame_callback(set_splash_opacity);
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// Reset splash color when animation starts
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ctx->splash_fade_in_animation->set_start_callback
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(
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[ctx]()
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{
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static_cast<render::material_property<float4>*>(ctx->splash_billboard_material->get_property("tint"))->set_value(float4{1, 1, 1, 0});
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ctx->splash_billboard_material->update_tweens();
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}
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);
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// Trigger splash fade out animation when splash fade in animation ends
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ctx->splash_fade_in_animation->set_end_callback
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(
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[ctx]()
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{
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ctx->splash_fade_out_animation->play();
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}
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);
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// Trigger a state change when the splash fade out animation ends
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ctx->splash_fade_out_animation->set_end_callback
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(
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[ctx]()
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{
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application::state next_state;
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next_state.name = "title";
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next_state.enter = std::bind(game::state::title::enter, ctx);
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next_state.exit = std::bind(game::state::title::exit, ctx);
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ctx->app->queue_state(next_state);
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}
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);
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// Add splash fade animations to animator
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ctx->animator->add_animation(ctx->splash_fade_in_animation);
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ctx->animator->add_animation(ctx->splash_fade_out_animation);
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// Start splash fade in animation
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ctx->splash_fade_in_animation->play();
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// Set up splash skipper
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ctx->input_listener->set_callback
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(
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[ctx](const event_base& event)
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{
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auto id = event.get_event_type_id();
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if (id != mouse_moved_event::event_type_id && id != mouse_wheel_scrolled_event::event_type_id && id != gamepad_axis_moved_event::event_type_id)
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{
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// Black out screen
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ctx->rasterizer->set_clear_color(0.0f, 0.0f, 0.0f, 1.0f);
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ctx->rasterizer->clear_framebuffer(true, false, false);
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ctx->app->swap_buffers();
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// Change state
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application::state next_state;
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next_state.name = "title";
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next_state.enter = std::bind(game::state::title::enter, ctx);
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next_state.exit = std::bind(game::state::title::exit, ctx);
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ctx->app->change_state(next_state);
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}
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}
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);
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ctx->input_listener->set_enabled(true);
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// Add splash billboard to UI scene
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ctx->ui_scene->add_object(ctx->splash_billboard);
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}
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void exit(game::context* ctx)
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{
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// Remove splash billboard from UI scene
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ctx->ui_scene->remove_object(ctx->splash_billboard);
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// Disable splash skipper
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ctx->input_listener->set_enabled(false);
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ctx->input_listener->set_callback(nullptr);
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// Destruct splash fade animations
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ctx->animator->remove_animation(ctx->splash_fade_in_animation);
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ctx->animator->remove_animation(ctx->splash_fade_out_animation);
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delete ctx->splash_fade_in_animation;
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delete ctx->splash_fade_out_animation;
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ctx->splash_fade_in_animation = nullptr;
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ctx->splash_fade_out_animation = nullptr;
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ctx->ui_clear_pass->set_cleared_buffers(false, true, false);
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}
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} // namespace splash
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} // namespace state
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} // namespace game
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