I'm new to C and C++ programming, can anyone give me a hint on what I'm doing wrong here. I'm trying to write to concat function that takes to pointers to chars and concatenates the second to the first. The code does do that, but the problem is that it adds a bunch of junk at the end.
For...
What is a cpp class an how does it work. In java and c# a class(marked as public) is pretty much just a source file, or a public class is associated with a source file, for example:
Program.java:
public class Program{
}
Or
Program.cs:
public class Program{
}
Or I can have some not...
if i have a function f(n)=3+8+14+24+⋯+(n2−1)
how do i implement this into a function recursively without using tail recursion?
it needs a static variable used also
thanks!
This is the older version code for ArduinoJson v5.0:
JsonObject& json_parsed = jsonBuffer.parseObject(json);
This is after I changed it to ArduinoJson v6.0:
deserializeJson=(doc, json);
And after that, I got this error message
C:\Users\wweih\Desktop\New folder (2)\free_code\free_code.ino: In...
I am trying to generate a random vertices and edges for my Edmon-karp algorithm, but I am unable to do it and I think that is useful formany of us, as there is no info on the internet how to generate automatically edges ant vertices. I am trying this method instead of inputting numbers by hand...
5 positions open for a startup in Eastern, PA (long distance is most definitely an option thanks to technology!)
Reinventing the way we see the world (more details during/after interviewing process)
We are looking for (1 or many)
A Programmer who is fluent in C, C++, or Java. (Arduino...
Looking for outside the box, grand thinkers, who constantly question the boundaries of life and society, looking ideally for someone proficient in C/C++ and/or HTML BUT completely open to interviewing any applicant who has a passion for solving problems.
If you’re interested in a quick...
Conclusion
Improving the game
There is a great amount of improvements that we could make to the game. It can however get complex pretty fast, so it is important to be comfortable with the basics of the programming language used before really getting into big projects.
Learning to code in C++...
Adding shadows
Lighting and shadows
Simulating lighting and shadows can greatly improve the visuals of a video game. It may however get very complex. For the sake of simplicity, here, we will only handle the display of shadows (And in a simple way).
Representation of colors
Colors are often...
Buying and using potions
Obtaining gold
Until now, there was no mean for the player to obtain gold. We will give the character a gold coin for each monster slayed.
In the section of code executed when the player kills a monster, we will add the following code:
// Increases the amount of gold by...
Adding a merchant and building
Adding the castle
We will add a small castle at the bottom left of the window. We load its texture and create its sprite:
sf::Texture castleTex;
castleTex.loadFromFile("resources/castle.png");
sf::Sprite castle;
castle.setTexture(castleTex);
castle.setScale(4, 4)...
Making the monsters attack
Storing information about the player
To keep track of the health and the amount of gold and potions the player has, we define 3 variables:
int playerGoldAmount = 0, playerPotionAmount = 0, playerHealthAmount = 3;
How the monsters attack
The monsters attack by casting...
Displaying information
Displaying text
The class used to display text is sf::Text.
sf::Text text;
Similarly to how an object of type sf::Sprite needs a texture, an object of type sf::Text requires a font.
A font specifies the shape of the characters (And other information) and an object of type...
Making the character attack
Keeping track of whether a monster is alive or not
A variable of type 'bool' can either equal 'true' or 'false'. Here, we define an array of 'bool' values indicating if a monster is dead or not:
bool monstersDead[4];
In the loop where we assign the texture to the...
Adding monsters
Displaying the monsters
There are 3 textures for the monsters. To simulate an animation, we will alternate between them every 0.333 seconds.
The textures:
sf::Texture monsterTexs[3];
monsterTexs[0].loadFromFile("resources/monster1.png")...
Handling the collisions
Currently, collisions are not tested. The player can walk over the trees and stones. Let us resolve that.
Testing the collision between two sprites
The class sf::FloatRect is almost the same as sf::IntRect. The only difference is that its members (Representing its...
Adding the character
The sprite and texture
The texture:
sf::Texture playerTex;
playerTex.loadFromFile("resources/player.png");
The sprite:
sf::Sprite player;
player.setTexture(playerTex);
player.setPosition(400, 300);
player.setScale(3, 3);
Testing if a key is pressed
The function...
Adding trees and stones
Adding the trees
The texture:
sf::Texture treeTex;
treeTex.loadFromFile("resources/tree.png");
The sprites:
sf::Sprite trees[8];
trees[0].setPosition(50, 60);
trees[1].setPosition(600, 150);
trees[2].setPosition(630, 456);
trees[3].setPosition(300, 600)...
Adding dirt
Arrays
When we have to create many variables of the same type, defining them individually may be inconvenient. In that case, it is better to create an array. An array is simply a group of variables which are individually accessed by their index within the array, rather than by...