213 lines
7.7 KiB
C++
213 lines
7.7 KiB
C++
/**
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* Furnace Tracker - multi-system chiptune tracker
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* Copyright (C) 2021-2023 tildearrow and contributors
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*
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* This program 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 2 of the License, or
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* (at your option) any later version.
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*
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* This program 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 along
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* with this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
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*/
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#include "gui.h"
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#include "imgui_internal.h"
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void FurnaceGUI::drawImage(ImDrawList* dl, FurnaceGUIImages image, const ImVec2& pos, const ImVec2& scale, double rotate, const ImVec2& uvMin, const ImVec2& uvMax, const ImVec4& imgColor) {
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FurnaceGUIImage* imgI=getImage(image);
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SDL_Texture* img=getTexture(image);
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float squareSize=MAX(canvasW,canvasH);
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float uDiff=uvMax.x-uvMin.x;
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float vDiff=uvMax.y-uvMin.y;
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ImVec2 rectMin=ImVec2(
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-imgI->width*0.5*scale.x*(squareSize/2048.0)*uDiff,
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-imgI->height*0.5*scale.y*(squareSize/2048.0)*vDiff
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);
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ImVec2 rectMax=ImVec2(
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-rectMin.x,
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-rectMin.y
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);
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ImVec2 posAbs=ImLerp(
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ImVec2((canvasW-squareSize)*0.5,(canvasH-squareSize)*0.5),
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ImVec2((canvasW+squareSize)*0.5,(canvasH+squareSize)*0.5),
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pos
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);
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ImVec2 quad0=ImVec2(
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posAbs.x+rectMin.x*cos(rotate)-rectMin.y*sin(rotate),
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posAbs.y+rectMin.x*sin(rotate)+rectMin.y*cos(rotate)
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);
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ImVec2 quad1=ImVec2(
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posAbs.x+rectMax.x*cos(rotate)-rectMin.y*sin(rotate),
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posAbs.y+rectMax.x*sin(rotate)+rectMin.y*cos(rotate)
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);
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ImVec2 quad2=ImVec2(
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posAbs.x+rectMax.x*cos(rotate)-rectMax.y*sin(rotate),
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posAbs.y+rectMax.x*sin(rotate)+rectMax.y*cos(rotate)
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);
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ImVec2 quad3=ImVec2(
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posAbs.x+rectMin.x*cos(rotate)-rectMax.y*sin(rotate),
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posAbs.y+rectMin.x*sin(rotate)+rectMax.y*cos(rotate)
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);
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ImVec2 uv0=ImVec2(uvMin.x,uvMin.y);
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ImVec2 uv1=ImVec2(uvMax.x,uvMin.y);
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ImVec2 uv2=ImVec2(uvMax.x,uvMax.y);
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ImVec2 uv3=ImVec2(uvMin.x,uvMax.y);
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ImU32 colorConverted=ImGui::GetColorU32(imgColor);
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dl->AddImageQuad(img,quad0,quad1,quad2,quad3,uv0,uv1,uv2,uv3,colorConverted);
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}
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void FurnaceGUI::drawIntro() {
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if (introPos<9.0) {
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WAKE_UP;
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nextWindow=GUI_WINDOW_NOTHING;
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ImGui::SetNextWindowPos(ImVec2(0,0));
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ImGui::SetNextWindowSize(ImVec2(canvasW,canvasH));
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ImGui::SetNextWindowFocus();
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if (ImGui::Begin("Intro",NULL,ImGuiWindowFlags_NoMove|ImGuiWindowFlags_NoResize|ImGuiWindowFlags_NoDocking|ImGuiWindowFlags_NoTitleBar|ImGuiWindowFlags_NoBackground)) {
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ImDrawList* dl=ImGui::GetForegroundDrawList();
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ImVec2 top=ImVec2(0.0f,0.0f);
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ImVec2 bottom=ImVec2(canvasW,canvasH);
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// preload textures
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getTexture(GUI_IMAGE_TALOGO);
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getTexture(GUI_IMAGE_TACHIP);
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getTexture(GUI_IMAGE_LOGO);
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getTexture(GUI_IMAGE_INTROBG,SDL_BLENDMODE_ADD);
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// background
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float bgAlpha=CLAMP(9.0-introPos,0.0,1.0);
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bgAlpha=3.0*pow(bgAlpha,2.0)-2.0*pow(bgAlpha,3.0);
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ImU32 bgColor=ImGui::GetColorU32(ImVec4(0.0f,0.0f,0.0f,bgAlpha));
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dl->AddRectFilled(top,bottom,bgColor);
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// part 1 - talogo
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if (introPos<2.3) {
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drawImage(dl,GUI_IMAGE_TALOGO,ImVec2(0.5,0.5),ImVec2(0.7,0.7),0.0f,ImVec2(0.0,0.0),ImVec2(1.0,1.0),ImVec4(1.0,1.0,1.0,MAX(0.01,1.0-pow(MAX(0.0,1.0-introPos*2.0),3.0))));
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for (int i=0; i<16; i++) {
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double chipCenter=0.25+pow(MAX(0.0,1.5-introPos*0.8-((double)i/36.0)),2.0)+pow(sin(-introPos*2.2-(double)i*0.44),24)*0.05;
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ImVec2 chipPos=ImVec2(
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0.5+chipCenter*cos(2.0*M_PI*(double)i/16.0-pow(introPos,2.2)),
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0.5+chipCenter*sin(2.0*M_PI*(double)i/16.0-pow(introPos,2.2))
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);
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drawImage(dl,GUI_IMAGE_TACHIP,chipPos,ImVec2(0.25,0.25),0.0f,ImVec2(0.0,0.0),ImVec2(1.0,0.5),ImVec4(1.0,1.0,1.0,1.0));
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}
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}
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// background after part 1
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if (introPos>2.3) {
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float s1a=CLAMP((introPos-3.2)*1.3,0.0f,1.0f);
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float s2a=CLAMP((introPos-4.5)*1.0,0.0f,1.0f);
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float addition=(3*pow(s1a,2)-2*pow(s1a,3)+(3*pow(s2a,2)-2*pow(s2a,3))*1.5)*3.5;
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drawImage(dl,GUI_IMAGE_INTROBG,ImVec2(0.125,0.25-(introPos+addition)*0.05),ImVec2(18.0,18.0),0.0,ImVec2(0.0,0.0),ImVec2(1.0,1.0),ImVec4(0.4,0.1+0.7*s1a,1.0*s1a,0.5*bgAlpha));
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drawImage(dl,GUI_IMAGE_INTROBG,ImVec2(0.4,0.25-(introPos+addition)*0.08),ImVec2(18.0,18.0),0.0,ImVec2(0.0,0.0),ImVec2(1.0,1.0),ImVec4(0.5-0.4*s1a,0.8-0.6*s1a,1.0*s1a,0.6*bgAlpha));
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drawImage(dl,GUI_IMAGE_INTROBG,ImVec2(0.7,0.25-(introPos+addition)*0.03),ImVec2(20.0,20.0),0.0,ImVec2(0.0,0.0),ImVec2(1.0,1.0),ImVec4(0.4+0.3*s1a,1.0,0.7,(0.5-0.4*s1a)*bgAlpha));
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}
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const double fallPatX[]={
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0.0,
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272.0,
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470.0,
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742.0,
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1013.0
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};
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// part 2 - falling patterns
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if (introPos>2.3 && introPos<4.5) {
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for (int i=0; i<48; i++) {
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ImVec2 uv0=ImVec2(
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fallPatX[i&3],
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(double)(i>>2)*36.0
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);
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ImVec2 uv1=ImVec2(
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fallPatX[1+(i&3)]-2.0,
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uv0.y+36.0
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);
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uv0.x/=1024.0;
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uv0.y/=512.0;
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uv1.x/=1024.0;
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uv1.y/=512.0;
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bool left=(i%6)>=3;
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double t=(introPos-2.5)*(0.77+(cos(i+7)*0.05));
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double alteration=pow(t,0.4)-(0.55*t)+0.55*pow(t,6.0);
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drawImage(dl,GUI_IMAGE_PAT,ImVec2((left?0:1)+sin(cos(i*3.67))*0.35+((alteration+((introPos-2.3)*(0.08*(double)(1+(i&3)))))*(left?1.0:-1.0)),0.5+sin(i*6.74)*0.3-pow(CLAMP(introPos-3.0,0.0,1.0),4.0)*1.5),ImVec2(1.5,1.5),0.0f,uv0,uv1,ImVec4(1.0,1.0,1.0,1.0));
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}
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}
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// transition
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float transitionPos=CLAMP(introPos*4.0-8,-1.5,3.5);
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dl->AddQuadFilled(
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ImVec2(
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(transitionPos-1.5)*canvasW,
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0.0
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),
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ImVec2(
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(transitionPos)*canvasW,
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0.0
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),
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ImVec2(
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(transitionPos-0.2)*canvasW,
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canvasH
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),
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ImVec2(
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(transitionPos-1.7)*canvasW,
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canvasH
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),
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ImGui::GetColorU32(ImVec4(0.35,0.4,0.5,1.0))
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);
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// part 3 - falling chips
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if (introPos>3.0) {
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for (int i=0; i<40; i++) {
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float blah=(introPos-4.25)*1.3;
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ImVec2 chipPos=ImVec2(
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0.5+sin(i)*0.4,
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0.1-(1.1*pow(blah,2.0)-1.3*pow(blah,2.0)+pow(blah,5.0))+i*0.02+((introPos-3.75)*1.3*(fabs(sin(i*1.3))*0.28))
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);
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drawImage(dl,GUI_IMAGE_TACHIP,chipPos,ImVec2(0.33,0.33),0.5*M_PI,ImVec2(0.0,0.0),ImVec2(1.0,0.5),ImVec4(1.0,1.0,1.0,1.0));
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}
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}
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// part 4 - logo end
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if (introPos>5.0) {
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drawImage(
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dl,
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GUI_IMAGE_WORDMARK,
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ImVec2(0.36+0.3*(1.0-pow(1.0-CLAMP(introPos-6.0,0.0,1.0),6.0)),0.5+pow(1.0-CLAMP(introPos-5.0,0.0,1.0),4.0)),
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ImVec2(1.0,1.0),
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0.0f,
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ImVec2(pow(1.0-CLAMP(introPos-6.0,0.0,1.0),8.0),0.0),
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ImVec2(1.0,1.0),
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ImVec4(1.0,1.0,1.0,bgAlpha)
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);
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drawImage(dl,GUI_IMAGE_LOGO,ImVec2(0.5-0.25*(1.0-pow(1.0-CLAMP(introPos-6.0,0.0,1.0),6.0)),0.5+pow(1.0-CLAMP(introPos-5.0,0.0,1.0),4.0)),ImVec2(0.67,0.67),0.0f,ImVec2(0.0,0.0),ImVec2(1.0,1.0),ImVec4(1.0,1.0,1.0,bgAlpha));
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}
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dl->AddText(top,ImGui::GetColorU32(ImVec4(1.0f,1.0f,1.0f,bgAlpha)),"Furnace intro - work in progress");
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}
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ImGui::End();
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if (mustClear<=0) {
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introPos+=ImGui::GetIO().DeltaTime;
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}
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}
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}
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