draw.h File Reference

Routines for drawing sprites and primitives to the screen. More...

#include <string>
#include "./color.h"
#include "./geometry.h"
#include "./types.h"

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Namespaces
namespace	asw
namespace	asw::draw

Functions
void	asw::draw::clear_color (asw::Color color)
	Clear the screen to a color.
void	asw::draw::sprite (const asw::Texture &tex, const asw::Vec2< float > &position)
	Draw a sprite.
void	asw::draw::sprite_flip (const asw::Texture &tex, const asw::Vec2< float > &position, bool flip_x, bool flip_y)
	Draw a sprite with the option to flip it.
void	asw::draw::stretch_sprite (const asw::Texture &tex, const asw::Quad< float > &position)
	Draw a sprite with the option to stretch it.
void	asw::draw::rotate_sprite (const asw::Texture &tex, const asw::Vec2< float > &position, float angle)
	Draw a sprite with the option to rotate it.
void	asw::draw::stretch_sprite_rotate (const asw::Texture &tex, const asw::Quad< float > &dest, float angle, bool flip_x=false, bool flip_y=false)
	Draw a sprite stretched to a quad, rotated around its centre and optionally flipped.
void	asw::draw::stretch_sprite_blit (const asw::Texture &tex, const asw::Quad< float > &source, const asw::Quad< float > &dest)
	Draw a sprite with the option to stretch a portion of it.
void	asw::draw::stretch_sprite_rotate_blit (const asw::Texture &tex, const asw::Quad< float > &source, const asw::Quad< float > &dest, float angle, bool flip_x=false, bool flip_y=false)
	Draw a sprite with the option to stretch and rotate a portion of it.
void	asw::draw::text (const asw::Font &font, const std::string &text, const asw::Vec2< float > &position, asw::Color color, asw::TextJustify justify=asw::TextJustify::Left)
	Draw text. The position is rounded to whole pixels after justification so glyphs stay sharp. Smooth fonts are rendered at the output resolution, so text stays sharp when the window is scaled up or on high density displays.
void	asw::draw::text_shadow (const asw::Font &font, const std::string &text, const asw::Vec2< float > &position, asw::Color color, asw::Color shadow=asw::Color(0, 0, 0), const asw::Vec2< float > &offset=asw::Vec2< float >(2.0F, 2.0F), asw::TextJustify justify=asw::TextJustify::Left)
	Draw text with a drop shadow behind it, so it reads on any background. The shadow fades with the text colour's alpha.
void	asw::draw::clear_text_cache ()
	Clear cached rendered text textures.
void	asw::draw::point (const asw::Vec2< float > &position, asw::Color color)
	Draw a point.
void	asw::draw::line (const asw::Vec2< float > &position1, const asw::Vec2< float > &position2, asw::Color color)
	Draw a line.
void	asw::draw::rect (const asw::Quad< float > &position, asw::Color color, float thickness=1.0F)
	Draw a rectangle.
void	asw::draw::rect_fill (const asw::Quad< float > &position, asw::Color color)
	Draw a filled rectangle.
void	asw::draw::rect_fill_rotate (const asw::Quad< float > &position, float angle, asw::Color color)
	Draw a filled rectangle rotated around its centre.
void	asw::draw::circle (const asw::Vec2< float > &position, float radius, asw::Color color)
	Draw a circle.
void	asw::draw::circle_fill (const asw::Vec2< float > &position, float radius, asw::Color color)
	Draw a filled circle.
void	asw::draw::triangle_fill (const asw::Vec2< float > &a, const asw::Vec2< float > &b, const asw::Vec2< float > &c, asw::Color color)
	Draw a filled triangle.
void	asw::draw::polygon (const asw::Polygonf &points, asw::Color color)
	Draw the outline of a polygon. The last point joins the first.
void	asw::draw::polygon_fill (const asw::Polygonf &points, asw::Color color)
	Draw a filled polygon. The polygon can be concave, but its edges must not cross.
void	asw::draw::set_blend_mode (const asw::Texture &texture, asw::BlendMode mode)
	Set the blend mode of a texture.
void	asw::draw::set_alpha (const asw::Texture &texture, float alpha)
	Set the alpha of a texture.
void	asw::draw::set_tint (const asw::Texture &texture, asw::Color tint)
	Set the tint of a texture. Each colour channel is multiplied by the tint when drawn, white draws the texture unchanged. Alpha is ignored, use set_alpha for transparency.
void	asw::draw::set_scale_mode (const asw::Texture &texture, asw::ScaleMode mode)
	Set the scale mode of a texture. Nearest keeps hard pixel edges, linear smooths the texture when it is scaled.

Detailed Description

Routines for drawing sprites and primitives to the screen.

Author

Allan Legemaate (alege.nosp@m.maat.nosp@m.e@gma.nosp@m.il.c.nosp@m.om)

Date

2023-09-20

Copyright

Copyright (c) 2023

Definition in file draw.h.