100 Days of Code: Day 96 Update

I created an Exit button to make quitting the application easier. I edited the startbutton.c and startbutton.h files and renamed them to button. Since I am now using multiple buttons, I decided to create a generic Button struct to handle both buttons.

button.h

#pragma once
#include <SDL3/SDL.h>
#include <SDL3_ttf/SDL_ttf.h>
#include <stdbool.h>
#include <stdlib.h>

struct Button 
{
    int x;
    int y;
    float width;
    float height;
    char *text;
};

void GenerateButton(TTF_Font *font, SDL_Renderer *renderer, struct Button *button, bool isHovering);
bool IsHoveringButton(int mouseX, int mouseY, struct Button button);

button.c

#include "button.h"

void GenerateButton(TTF_Font *font, SDL_Renderer *renderer, struct Button *button, bool isHovering)
{    
    SDL_Color color;

    if (isHovering) 
    {
        color.r = 0x00;
        color.g = 0x00;
        color.b = 0x00;
        color.a = 0xFF;
    }else
    {
        color.r = 0xFF;
        color.g = 0xFF;
        color.b = 0xFF;
        color.a = 0xFF;
    }

    SDL_Surface *buttonTextSurface = TTF_RenderText_Solid(font, button->text, color);

    if (button->width == 0 || button->height == 0)
    {
        button->width = buttonTextSurface->w;
        button->height = buttonTextSurface->h; 
    }

    SDL_SetRenderDrawColor(renderer, 0xFF, 0xFF, 0xFF, 0xFF);
    SDL_FRect buttonBorderRect = {button->x, button->y, button->width * 1.3, button->height * 1.3};

    if (isHovering)
    {
        SDL_RenderFillRect(renderer, &buttonBorderRect);
    }else
    {
        SDL_RenderRect(renderer, &buttonBorderRect);
    }

    SDL_Texture *buttonTextTexture = SDL_CreateTextureFromSurface(renderer, buttonTextSurface);
    const SDL_FRect buttonTextHolder = {button->x * 1.04, button->y * 1.01, button->width, button->height};

    SDL_RenderTexture(renderer, buttonTextTexture, NULL, &buttonTextHolder);

    SDL_RenderRect(renderer, &buttonBorderRect);

    SDL_DestroySurface(buttonTextSurface);
    buttonTextSurface = NULL;
    SDL_DestroyTexture(buttonTextTexture);
}

bool IsHoveringButton(int mouseX, int mouseY, struct Button button)
{
    if (mouseX >= button.x && mouseX <= button.x + button.width * 1.3)
    {
        if (mouseY >= button.y && mouseY <= button.y + button.height * 1.3)
        {
            return true;
        }
    }

    return false;
}

For the confusing string problem, I asked for help on freeCodeCamp. I received some incredibly helpful messages. Strings in C are very tricky, and there can be difficult problems to solve. It might be better to use libraries instead.

Day 96/100 100 Days of Code

Jumping Ball