Util

General utility functions.

Header: #include <asw/modules/util.h>Namespace: asw::util

Functions

abortOnError

void abortOnError(const std::string& message);

Abort the program and display an error message.

makeColor

asw::Color makeColor(int r, int g, int b);
asw::Color makeColor(int r, int g, int b, int a);

Create a color from RGB or RGBA values (0-255 each).

getTextureSize

asw::Vec2<float> getTextureSize(const asw::Texture& tex);

Get the width and height of a texture as a Vec2<float>.

getTextSize

asw::Vec2<int> getTextSize(const asw::Font& font, const std::string& text);

Get the rendered size of a string with the given font.

lerp

template <typename T>
T lerp(const T& a, const T& b, float t);

Linearly interpolate between two values. The t parameter is clamped to 0.0 - 1.0.

Parameter	Type	Description
a	const T&	Start value
b	const T&	End value
t	float	Interpolation factor (0.0 - 1.0)

Works with any type that supports +, -, and * with a float (e.g., float, Vec2<float>).

Example

// Create colors
asw::Color red = asw::util::makeColor(255, 0, 0);
asw::Color semiTransparent = asw::util::makeColor(255, 255, 255, 128);

// Get texture dimensions
auto size = asw::util::getTextureSize(texture);
float width = size.x;
float height = size.y;

// Smooth interpolation
float smoothed = asw::util::lerp(currentValue, targetValue, 0.1f);

// Interpolate positions
asw::Vec2<float> pos = asw::util::lerp(startPos, endPos, progress);