gfx.draw/fillcircle

src/cat/LuaScriptInterface.cpp

@@ -1876,6 +1876,8 @@ void LuaScriptInterface::initGraphicsAPI()
 		{"drawLine", graphics_drawLine},
 		{"drawRect", graphics_drawRect},
 		{"fillRect", graphics_fillRect},
+		{"drawCircle", graphics_drawCircle},
+		{"fillCircle", graphics_fillCircle},
 		{NULL, NULL}
 	};
 	luaL_register(l, "graphics", graphicsAPIMethods);
@@ -1953,11 +1955,11 @@ int LuaScriptInterface::graphics_drawLine(lua_State * l)
 
 int LuaScriptInterface::graphics_drawRect(lua_State * l)
 {
-	int x, y, w, h, r, g, b, a;
+	int x, y, rx, ry, r, g, b, a;
 	x = lua_tointeger(l, 1);
 	y = lua_tointeger(l, 2);
-	w = lua_tointeger(l, 3);
+	rx = lua_tointeger(l, 3);
-	h = lua_tointeger(l, 4);
+	ry = lua_tointeger(l, 4);
 	r = luaL_optint(l, 5, 255);
 	g = luaL_optint(l, 6, 255);
 	b = luaL_optint(l, 7, 255);
@@ -1971,11 +1973,35 @@ int LuaScriptInterface::graphics_drawRect(lua_State * l)
 	if (b>255) b = 255;
 	if (a<0) a = 0;
 	if (a>255) a = 255;
-	luacon_g->drawrect(x, y, w, h, r, g, b, a);
+	luacon_g->drawrect(x, y, rx, ry, r, g, b, a);
 	return 0;
 }
 
 int LuaScriptInterface::graphics_fillRect(lua_State * l)
+{
+	int x, y, rx, ry, r, g, b, a;
+	x = lua_tointeger(l, 1);
+	y = lua_tointeger(l, 2);
+	rx = lua_tointeger(l, 3);
+	ry = lua_tointeger(l, 4);
+	r = luaL_optint(l, 5, 255);
+	g = luaL_optint(l, 6, 255);
+	b = luaL_optint(l, 7, 255);
+	a = luaL_optint(l, 8, 255);
+
+	if (r<0) r = 0;
+	if (r>255) r = 255;
+	if (g<0) g = 0;
+	if (g>255) g = 255;
+	if (b<0) b = 0;
+	if (b>255) b = 255;
+	if (a<0) a = 0;
+	if (a>255) a = 255;
+	luacon_g->fillrect(x, y, rx, ry, r, g, b, a);
+	return 0;
+}
+
+int LuaScriptInterface::graphics_drawCircle(lua_State * l)
 {
 	int x, y, w, h, r, g, b, a;
 	x = lua_tointeger(l, 1);
@@ -1995,7 +2021,31 @@ int LuaScriptInterface::graphics_fillRect(lua_State * l)
 	if (b>255) b = 255;
 	if (a<0) a = 0;
 	if (a>255) a = 255;
-	luacon_g->fillrect(x, y, w, h, r, g, b, a);
+	luacon_g->drawcircle(x, y, w, h, r, g, b, a);
+	return 0;
+}
+
+int LuaScriptInterface::graphics_fillCircle(lua_State * l)
+{
+	int x, y, w, h, r, g, b, a;
+	x = lua_tointeger(l, 1);
+	y = lua_tointeger(l, 2);
+	w = lua_tointeger(l, 3);
+	h = lua_tointeger(l, 4);
+	r = luaL_optint(l, 5, 255);
+	g = luaL_optint(l, 6, 255);
+	b = luaL_optint(l, 7, 255);
+	a = luaL_optint(l, 8, 255);
+
+	if (r<0) r = 0;
+	if (r>255) r = 255;
+	if (g<0) g = 0;
+	if (g>255) g = 255;
+	if (b<0) b = 0;
+	if (b>255) b = 255;
+	if (a<0) a = 0;
+	if (a>255) a = 255;
+	luacon_g->fillcircle(x, y, w, h, r, g, b, a);
 	return 0;
 }
 

src/cat/LuaScriptInterface.h

@@ -109,6 +109,8 @@ class LuaScriptInterface: public CommandInterface
 	static int graphics_drawLine(lua_State * l);
 	static int graphics_drawRect(lua_State * l);
 	static int graphics_fillRect(lua_State * l);
+	static int graphics_drawCircle(lua_State * l);
+	static int graphics_fillCircle(lua_State * l);
 
 	void initFileSystemAPI();
 	static int fileSystem_list(lua_State * l);

src/graphics/Graphics.h

@@ -239,6 +239,8 @@ public:
 	void draw_line(int x, int y, int x2, int y2, int r, int g, int b, int a);
 	void drawrect(int x, int y, int width, int height, int r, int g, int b, int a);
 	void fillrect(int x, int y, int width, int height, int r, int g, int b, int a);
+	void drawcircle(int x, int y, int rx, int ry, int r, int g, int b, int a);
+	void fillcircle(int x, int y, int rx, int ry, int r, int g, int b, int a);
 	void clearrect(int x, int y, int width, int height);
 	void gradientrect(int x, int y, int width, int height, int r, int g, int b, int a, int r2, int g2, int b2, int a2);
 

src/graphics/OpenGLDrawMethods.inl

@@ -314,6 +314,47 @@ void PIXELMETHODS_CLASS::fillrect(int x, int y, int width, int height, int r, in
 	glEnd();
 }
 
+void PIXELMETHODS_CLASS::drawcircle(int x, int y, int rx, int ry, int r, int g, int b, int a)
+{
+	int yTop = ry, yBottom, i, j;
+	for (i = 0; i <= rx; i++) {
+		yBottom = yTop;
+		while (pow(i-rx,2.0)*pow(ry,2.0) + pow(yTop-ry,2.0)*pow(rx,2.0) <= pow(rx,2.0)*pow(ry,2.0))
+			yTop++;
+		if (yBottom != yTop)
+			yTop--;
+		for (int j = yBottom; j <= yTop; j++)
+		{
+			blendpixel(x+i, y+j, r, g, b, a);
+			if (i != rx)
+				blendpixel(x+2*rx-i, y+j, r, g, b, a);
+			if (j != ry)
+			{
+				blendpixel(x+i, y+2*ry-j, r, g, b, a);
+				if (i != rx)
+					blendpixel(x+2*rx-i, y+2*ry-j, r, g, b, a);
+			}
+		}
+	}
+}
+
+void PIXELMETHODS_CLASS::fillcircle(int x, int y, int rx, int ry, int r, int g, int b, int a)
+{
+	int yTop = ry+1, yBottom, i, j;
+	for (i = 0; i <= rx; i++)
+	{
+		while (pow(i-rx,2.0)*pow(ry,2.0) + pow(yTop-ry,2.0)*pow(rx,2.0) <= pow(rx,2.0)*pow(ry,2.0))
+			yTop++;
+		yBottom = 2*ry - yTop;
+		for (int j = yBottom+1; j < yTop; j++)
+		{
+			blendpixel(x+i, y+j, r, g, b, a);
+			if (i != rx)
+				blendpixel(x+2*rx-i, y+j, r, g, b, a);
+		}
+	}
+}
+
 void PIXELMETHODS_CLASS::gradientrect(int x, int y, int width, int height, int r, int g, int b, int a, int r2, int g2, int b2, int a2)
 {
 	glBegin(GL_QUADS);

src/graphics/RasterDrawMethods.inl

@@ -356,6 +356,47 @@ void PIXELMETHODS_CLASS::fillrect(int x, int y, int w, int h, int r, int g, int
 			blendpixel(x+i, y+j, r, g, b, a);
 }
 
+void PIXELMETHODS_CLASS::drawcircle(int x, int y, int rx, int ry, int r, int g, int b, int a)
+{
+	int yTop = ry, yBottom, i, j;
+	for (i = 0; i <= rx; i++) {
+		yBottom = yTop;
+		while (pow(i-rx,2.0)*pow(ry,2.0) + pow(yTop-ry,2.0)*pow(rx,2.0) <= pow(rx,2.0)*pow(ry,2.0))
+			yTop++;
+		if (yBottom != yTop)
+			yTop--;
+		for (int j = yBottom; j <= yTop; j++)
+		{
+			blendpixel(x+i, y+j, r, g, b, a);
+			if (i != rx)
+				blendpixel(x+2*rx-i, y+j, r, g, b, a);
+			if (j != ry)
+			{
+				blendpixel(x+i, y+2*ry-j, r, g, b, a);
+				if (i != rx)
+					blendpixel(x+2*rx-i, y+2*ry-j, r, g, b, a);
+			}
+		}
+	}
+}
+
+void PIXELMETHODS_CLASS::fillcircle(int x, int y, int rx, int ry, int r, int g, int b, int a)
+{
+	int yTop = ry+1, yBottom, i, j;
+	for (i = 0; i <= rx; i++)
+	{
+		while (pow(i-rx,2.0)*pow(ry,2.0) + pow(yTop-ry,2.0)*pow(rx,2.0) <= pow(rx,2.0)*pow(ry,2.0))
+			yTop++;
+		yBottom = 2*ry - yTop;
+		for (int j = yBottom+1; j < yTop; j++)
+		{
+			blendpixel(x+i, y+j, r, g, b, a);
+			if (i != rx)
+				blendpixel(x+2*rx-i, y+j, r, g, b, a);
+		}
+	}
+}
+
 void PIXELMETHODS_CLASS::gradientrect(int x, int y, int width, int height, int r, int g, int b, int a, int r2, int g2, int b2, int a2)
 {
 

src/graphics/Renderer.h

@@ -126,6 +126,8 @@ public:
 	void draw_line(int x, int y, int x2, int y2, int r, int g, int b, int a);
 	void drawrect(int x, int y, int width, int height, int r, int g, int b, int a);
 	void fillrect(int x, int y, int width, int height, int r, int g, int b, int a);
+	void drawcircle(int x, int y, int rx, int ry, int r, int g, int b, int a);
+	void fillcircle(int x, int y, int rx, int ry, int r, int g, int b, int a);
 	void clearrect(int x, int y, int width, int height);
 	void gradientrect(int x, int y, int width, int height, int r, int g, int b, int a, int r2, int g2, int b2, int a2);