See the output in Figure 7.3.Ģ5 Arguments Technically speaking, arguments are the variables that live inside the parentheses in the function definistion, that is, “void drawCar(int x, int y, int thesize, color c)”. To demonstrate this, we will look at code for drawing a collection of shapes and examine how functions allow us to draw multiple versions of the pattern without retyping the same code over and over.ġ0 Arguments Leaving Zoog until bit later, consider the following pattern resembling a car(viewed from above as show in Figure 7.1).ġ1 Arguments How to Make It in Figure 7.1?ġ5 Arguments To draw a second car, we repeat the above code with different values, as shown in Figure 7.2.ġ9 Arguments It should be fairly apparent where this is going.Īfter all, we are doing the same thing twice, why brother repeating all that code? To escape this repetition, we can move the code into a function that displays the car according to several arguments(position, size, and color).Ģ2 Arguments In the draw() function, we then call the drawCar() function three times, passing four parameters each time. For example: Move(mouseX/10) ĩ Arguments Arguments pave the way for more flexible, and therefore reusable, function. The white circle wiill be sized according to to the value placed in parantheses.Ħ Arguments Looking at the bouncing ball example, we could rewrtite the move() function to include an argument:ħ Arguments In order to move the ball twice as fast: Move(2) Ĩ Arguments We could also pass another variable or the result of a mathematical expression (such as mouseX divided by 10) in the function. This variable is a local variableto be used in that function (and only in that function). These are ellipse() function arguments and we encountered this in Chapter 1 when we learned to call functions for the first time.Ĥ Arguments Let’s write drawBlackCircle()to include an arguments:ĥ Arguments An argument is simply a variable declaration inside the parentheses in the function definition. We can’t just say draw an ellipse, we have to say draw an ellipse at this location and with this size.

Instiead of merely saying “Move, “ a function might say “Move N number of steps”, where “N” argumentģ Arguments When we display an ellipse in Processing, we are required to specify details about that ellipse.

You can think of them as conditions under which the function should operate. 2 Arguments Arguments are values that are “passed” into a function.

Apa itu algoritma pemrograman