Area

Area is a type used to delimit a specific zone, notably for defining camera bounds, physics world limits, and tile regions.

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Overview

Area is represented by the type Area, included in the header "remake2d/vector.hpp". It is composed of four integers:

• i32 x : coordinate on the X axis
• i32 y : coordinate on the Y axis
• i32 w : area's width
• i32 h : area's height

Info

Unlike Vec2d and Dim2d, Area takes integer values rather than floats because it uses whole pixels for coordinates and size, not relative values. The Area type is also comparable.

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Method

The Area type own just one method:

Vec2d center(void) noexcept; // get Area center

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Usage

Its constructor is as follows:

constexpr Area(void);
constexpr Area(i32 x, i32 y, i32 w, i32 h);

#include <remake2d/vector.hpp>

int main(void) {
    rmk::Area zone = { 400, 300, 100, 100 }; // Area at coordinates (400, 300) with size (100, 100)
}

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Arithmetic

Area also supports the following operators: +, -, /, *, %, +=, -=, /=, *=, and %=:

#include <remake2d/math.hpp>

int main(void) {
    rmk::Area z1 = { 100, 200, 300, 400 };
    rmk::Area z2 = {  50, 100, 100, 200 };

    rmk::Area z3 = z1 + z2; // { 150, 300, 400, 600 }
    rmk::Area z4 = z1 - z2; // {  50, 100, 200, 200 }
    rmk::Area z5 = z1 * z2; // { 5000, 20000, 30000, 80000 }
    rmk::Area z6 = z1 % z2; // { 0, 0, 0, 0 }
}

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