platform-test/source/menu.cpp

104 lines
2.9 KiB
C++

#include "menu.h"
int menu(SDL_Renderer* renderer){
int SCREEN_WIDTH, SCREEN_HEIGHT;
SDL_GetRendererOutputSize(renderer,&SCREEN_WIDTH,&SCREEN_HEIGHT);
bool quit = false;
SDL_Event e;
Texture txLogo;
txLogo.setRenderer(renderer);
txLogo.loadTexture("textures/title.png");
int logoVmargin = 40;
SDL_Rect logo = {(SCREEN_WIDTH/2)-txLogo.getWidth()/2,logoVmargin,txLogo.getWidth(),txLogo.getHeight()};
int btnSpc = SCREEN_HEIGHT - (logo.y + logo.h);
int buttonNum = 3;
SDL_Rect button[buttonNum];
int btnWidth = SCREEN_WIDTH/3;
int btnHeight = btnSpc/buttonNum/2;
int spc = (btnSpc-buttonNum*btnHeight)/(buttonNum+1);
for(int i = 0; i < buttonNum; i++){
button[i].x = SCREEN_WIDTH/2-btnWidth/2;
button[i].y = ((i+1)*spc+i*btnHeight)+SCREEN_HEIGHT-btnSpc;
button[i].w = btnWidth;
button[i].h = btnHeight;
}
Texture play;
play.setRenderer(renderer);
SDL_Color textColor = {0xFF,0xFF,0xFF};
play.loadFromRendererText("Play",textColor);
SDL_Rect playRect = {button[0].x+(button[0].w/2)-play.getWidth()/2,button[0].y,play.getWidth(),play.getHeight()};
Texture exit;
exit.setRenderer(renderer);
exit.loadFromRendererText("Quit",textColor);
SDL_Rect exitRect = {button[2].x+(button[2].w/2)-exit.getWidth()/2,button[2].y,exit.getWidth(),exit.getHeight()};
Texture options;
options.setRenderer(renderer);
options.loadFromRendererText("Options",textColor);
SDL_Rect optionsRect = {button[1].x+(button[1].w/2)-options.getWidth()/2,button[1].y,options.getWidth(),options.getHeight()};
int select = 0;
bool wait = 0;
const Uint8* currentKeyStates = SDL_GetKeyboardState(NULL);
while(!quit){
while(SDL_PollEvent(&e)!=0){
if(e.type == SDL_QUIT){
quit = true;
}
}
SDL_SetRenderDrawColor(renderer,100,200,200,0xFF);
SDL_RenderClear(renderer);
int dir = 0;
if(currentKeyStates[SDL_SCANCODE_UP]) dir--;
if(currentKeyStates[SDL_SCANCODE_DOWN])dir++;
if(dir != 0){
if(!wait) select += dir;
wait = true;
}
else wait = false;
if(select >= buttonNum) select = 0;
if(select < 0) select = buttonNum-1;
txLogo.render(&logo);
for(int i = 0; i < buttonNum; i++){
if(static_cast<int>(select) == i){
SDL_SetRenderDrawColor(renderer,80,80,80,0xFF);
if(currentKeyStates[SDL_SCANCODE_SPACE]) SDL_SetRenderDrawColor(renderer,200,200,200,0xFF);
}
else SDL_SetRenderDrawColor(renderer,128,128,128,0xFF);
SDL_RenderFillRect(renderer,&button[i]);
}
play.render(&playRect);
exit.render(&exitRect);
options.render(&optionsRect);
if(currentKeyStates[SDL_SCANCODE_SPACE]){
if(select == 0) return 1;
else if(select == 1) return 0;
else if(select == 2) break;
}
SDL_RenderPresent(renderer);
}
return -1;
}