A simple library of extending the current functionality of SDL2 without having to change your includes. Currently supporting RenderQuads, RenderPolygons and more! It's a party a SDL2 Render Party!
Example Project of adding more sides to a rotating polygon rendered drawn with a white color:
What this means is when including in your projects include in in your .c or .cpp files instead of your .h files for enabling implementation.
#define SDL2_RENDERPARTY_IMPLEMENTATION //Allows the implementation of functions to be executed, withhout this line you may experience many compiler errors!
#include "sdl2_renderparty.h" //Includes the SDL2_RenderParty single file library ( Written in C, compatabile with C++ ) Rendered White Polygon with sides increasing:
Example Project Running on FreeBSD( Thanks high_on_tanor for testing):
Rendered Texture as polygon with sides increasing:
bool SDL2_RenderParty_Init(); //optional
bool SDL2_RenderParty_Quit(); //optional
//Gets the Directional Length on the X Axis , used in other calls
float SDL2_RenderParty_LengthdirX( float length, float angle ); **
//Gets the Directional Length on the Y Axis , used in other calls
float SDL2_RenderParty_LengthdirY( float length, float angle );**
//Renders a Circle at SDL_point(pos) with circle_radius, circle_colour, alpha(0-255) and starting and ending angle support.
bool SDL_RenderParty_Circle( SDL_Renderer * renderer, SDL_Texture * tex, SDL_Point pos, int circle_radius, SDL_Color * circle_colour, int alpha, float start_angle, int texture_effect );
//Renders An Oval with an X and Y radius at SDL_point(x,y) pos
bool SDL_RenderParty_Oval( SDL_Renderer * renderer, SDL_Texture * tex, SDL_Point pos, int x_radius,int y_radius,SDL_Color * oval_colour, int alpha, float start_angle, int texture_effect )
// Renders a texture or rotated rectangle based on 4 SDL_Vertices, you may toggle colors on or off and correct the inputted texture coordinates
bool SDL_RenderParty_Quad( SDL_Renderer *renderer, SDL_Texture *tex, const SDL_Vertex * vertices, bool show_colors , bool update_tex_cords ); **
// Renders TriangleStrips based on the inputted SDL_Vertex vertices. You will need at least 3 vertices for this function.
// tex can be left NULL to render colored TriangleStrips. If not left blank, please see the texture_effect which is based on the sdl_partyeffect enums
int SDL_RenderParty_Strips(SDL_Renderer *renderer, SDL_Texture *tex, const SDL_Vertex * vertices, int num_vertices, bool is_closed , int texture_effect ); **
// Renders TriangleFans based on the inputted SDL_Vertex vertices. You will need at least 3 vertices for this function.
// tex can be left NULL to render colored TriangleStrips. If not left blank, please see the texture_effect which is based on the sdl_partyeffect enums
int SDL_RenderParty_Fans( SDL_Renderer *renderer, SDL_Texture *tex, const SDL_Vertex *vertices, int num_vertices, int texture_effect ); **
// Renders a Polygon based on the inputted SDL_Vertex vertices. You will need at least 3 vertices for this function.
// tex can be left NULL to render colored TriangleFans. If not left blank, please see the texture_effect which is based on the sdl_partyeffect enums
bool SDL_RenderParty_Polygon( SDL_Renderer * renderer, SDL_Texture * tex, SDL_Point pos, int shape_length , int point_count, SDL_Color * shape_colour, int alpha, float start_angle, int texture_effect ); **