Draw

Routines for drawing sprites and primitives to the screen.

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

Sprite Drawing

sprite

void sprite(const asw::Texture& tex, const asw::Vec2<float>& position);

Draw a texture at the given position.

spriteFlip

void spriteFlip(const asw::Texture& tex,
                const asw::Vec2<float>& position,
                bool flipX,
                bool flipY);

Draw a sprite with optional horizontal and/or vertical flipping.

stretchSprite

void stretchSprite(const asw::Texture& tex, const asw::Quad<float>& position);

Draw a sprite stretched to fit the given quad (position + size).

rotateSprite

void rotateSprite(const asw::Texture& tex,
                  const asw::Vec2<float>& position,
                  double angle);

Draw a sprite rotated by the given angle (in degrees).

stretchSpriteBlit

void stretchSpriteBlit(const asw::Texture& tex,
                       const asw::Quad<float>& source,
                       const asw::Quad<float>& dest);

Draw a portion of a texture (defined by source) stretched to the dest quad.

stretchSpriteRotateBlit

void stretchSpriteRotateBlit(const asw::Texture& tex,
                             const asw::Quad<float>& source,
                             const asw::Quad<float>& dest,
                             double angle);

Draw a portion of a texture stretched and rotated.

Text Drawing

text

void text(const asw::Font& font,
          const std::string& text,
          const asw::Vec2<float>& position,
          asw::Color color);

Draw left-aligned text.

textCenter

void textCenter(const asw::Font& font,
                const std::string& text,
                const asw::Vec2<float>& position,
                asw::Color color);

Draw center-aligned text.

textRight

void textRight(const asw::Font& font,
               const std::string& text,
               const asw::Vec2<float>& position,
               asw::Color color);

Draw right-aligned text.

Primitive Drawing

clearColor

void clearColor(asw::Color color);

Clear the screen to a color.

point

void point(const asw::Vec2<float>& position, asw::Color color);

Draw a single point.

line

void line(const asw::Vec2<float>& position1,
          const asw::Vec2<float>& position2,
          asw::Color color);

Draw a line between two points.

rect

void rect(const asw::Quad<float>& position, asw::Color color);

Draw an outlined rectangle.

rectFill

void rectFill(const asw::Quad<float>& position, asw::Color color);

Draw a filled rectangle.

circle

void circle(const asw::Vec2<float>& position, float radius, asw::Color color);

Draw an outlined circle.

circleFill

void circleFill(const asw::Vec2<float>& position, float radius, asw::Color color);

Draw a filled circle.

Texture Utilities

setBlendMode

void setBlendMode(const asw::Texture& texture, asw::BlendMode mode);

Set the blend mode of a texture.

setAlpha

void setAlpha(const asw::Texture& texture, float alpha);

Set the alpha (opacity) of a texture.

Example

auto tex = asw::assets::loadTexture("player.png");
auto font = asw::assets::loadFont("font.ttf", 16);

// Draw sprite
asw::draw::sprite(tex, {100.0f, 200.0f});

// Draw rotated sprite
asw::draw::rotateSprite(tex, {100.0f, 200.0f}, 45.0);

// Draw primitives
asw::draw::rectFill({10, 10, 100, 50}, {255, 0, 0, 255});
asw::draw::circleFill({200.0f, 200.0f}, 30.0f, {0, 255, 0, 255});

// Draw text
asw::draw::text(font, "Hello ASW!", {10.0f, 10.0f}, {255, 255, 255, 255});