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Documented ctr.gfx.color

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Reuh 2015-10-25 12:33:44 +01:00
parent 3b8d56de63
commit 095308732c
1 changed files with 34 additions and 0 deletions
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34
source/color.c
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@ -1,3 +1,8 @@
/***
The `gfx.color` module
@module ctr.gfx.color
@usage local color = require("ctr.gfx.color")
*/
#include <sf2d.h> #include <sf2d.h>
#include <lua.h> #include <lua.h>
@ -6,18 +11,33 @@
u32 color_default = RGBA8(255, 255, 255, 255); u32 color_default = RGBA8(255, 255, 255, 255);
u32 color_background = RGBA8(0, 0, 0, 255); u32 color_background = RGBA8(0, 0, 0, 255);
/***
Set a color as the default one.
@function setDefault
@tparam integer color the color to set as the default one.
*/
static int color_setDefault(lua_State *L) { static int color_setDefault(lua_State *L) {
color_default = luaL_checkinteger(L, 1); color_default = luaL_checkinteger(L, 1);
return 0; return 0;
} }
/***
Return the default color.
@function getDefault
@treturn integer default color
*/
static int color_getDefault(lua_State *L) { static int color_getDefault(lua_State *L) {
lua_pushinteger(L, color_default); lua_pushinteger(L, color_default);
return 1; return 1;
} }
/***
Set a color as the background one.
@function setBackground
@tparam integer color the color to set as the background one.
*/
static int color_setBackground(lua_State *L) { static int color_setBackground(lua_State *L) {
color_background = luaL_checkinteger(L, 1); color_background = luaL_checkinteger(L, 1);
sf2d_set_clear_color(color_background); sf2d_set_clear_color(color_background);
@ -25,12 +45,26 @@ static int color_setBackground(lua_State *L) {
return 0; return 0;
} }
/***
Return the background color.
@function getBackground
@treturn integer background color
*/
static int color_getBackground(lua_State *L) { static int color_getBackground(lua_State *L) {
lua_pushinteger(L, color_background); lua_pushinteger(L, color_background);
return 1; return 1;
} }
/***
Return a color from red, green, blue and alpha values.
@function RGBA8
@tparam integer r the red value (0-255)
@tparam integer g the green value (0-255)
@tparam integer b the blue value (0-255)
@tparam[opt=255] integer a the alpha (opacity) value (0-255)
@treturn integer the color
*/
static int color_RGBA8(lua_State *L) { static int color_RGBA8(lua_State *L) {
int r = luaL_checkinteger(L, 1); int r = luaL_checkinteger(L, 1);
int g = luaL_checkinteger(L, 2); int g = luaL_checkinteger(L, 2);