Draw.c

Draw Pixel void draw_pixel(int x, int y, Uint8 r, Uint8 g, Uint8 b)

Draws a single pixel on the canvas

Parameters

parameter | usage | — | — | x | The x coordinate of the pixel to be drawn | y | The y coordinate of the pixel to be drawn | r | The red component of the pixel colour (0-255) | g | The green component of the pixel colour (0-255) | b | The blue component of the pixel colour (0-255)

Example

draw_pixel(4, 4, 213, 204, 197);

Draw Rectangle void draw_rectangle(int x1, int y1, int x2, int y2, Uint8 r, Uint8 g, Uint8 b)

Draws a rectangle on the canvas

Parameters

| parameter | usage | | — | — | | x1 | The x coordinate of the top left corner of the rectangle | | y1 | The y coordinate of the top left corner of the rectangle | | x2 | The x coordinate of the bottom right corner of the rectangle | | y2 | The y coordinate of the bottom right corner of the rectangle | | r | The red component of the pixel colour (0-255) | | g | The green component of the pixel colour (0-255) | | b | The blue component of the pixel colour (0-255) |

Example

draw_rectangle(1, 1, 7, 7, 213, 204, 197);

Clear Canvas clear(Uint8 r, Uint8 g, Uint8 b)

Draw over the entire canvas

Parameters

| parameter | usage | | — | — | | r | The red component of the pixel colour (0-255) | | g | The green component of the pixel colour (0-255) | | b | The blue component of the pixel colour (0-255) |

Example

clear(0, 0, 0);