Console improvements

Can use x,y coordinates to specify which particle.
ctype now also accepts element names.
More sanity checking of input.
delete command added.

2 files changed, 128 insertions, 64 deletions

diff --git a/src/interface.c b/src/interface.c
index af607c1..709a3fa 100644
--- a/src/interface.c
+++ b/src/interface.c
@@ -3847,7 +3847,7 @@ char *console_ui(pixel *vid_buf,char error[255]) { //TODO: error messages, show
 		         "You can now use particle names (ex. set type all deut)\n"
 		         "Reset works with pressure, velocity, sparks, temp (ex. 'reset pressure')\n"
 		         "To load a save use load saveID (ex. load 1337)\n"
-		         "Create particles with 'create deut x y' where x and y are the coords\n"
+		         "Create particles with 'create deut x,y' where x and y are the coords\n"
 		         "Run scripts from file 'file filename'"
 		         ,255, 187, 187, 255);
 
@@ -3924,26 +3924,101 @@ char *console_ui(pixel *vid_buf,char error[255]) { //TODO: error messages, show
 				}
 			}
 		}
-
 	}
-
-
+	return NULL;
 }
 
-int console_get_type(char *element)
+int console_parse_type(char *txt, int *element, char *err)
 {
-	int i;
+	int i = atoi(txt);
 	char num[4];
-	i = atoi(element);
-	sprintf(num,"%d",i);
-	if (i>=0 && i<PT_NUM && strcmp(element,num)==0)
-		return i;
-	if (strcasecmp(element,"C4")==0) return PT_PLEX;
-	if (strcasecmp(element,"C5")==0) return PT_C5;
-	if (strcasecmp(element,"NONE")==0) return PT_NONE;
-	for (i=0; i<PT_NUM; i++) {
-		if (strcasecmp(element,ptypes[i].name)==0)
-			return i;
-	}
-	return -1;
-}
\ No newline at end of file
+	if (i>=0 && i<PT_NUM)
+	{
+		sprintf(num,"%d",i);
+		if (strcmp(txt,num)==0)
+		{
+			*element = i;
+			return 1;
+		}
+	}
+	i = -1;
+	// alternative names for some elements
+	if (strcasecmp(txt,"C4")==0) i = PT_PLEX;
+	else if (strcasecmp(txt,"C5")==0) i = PT_C5;
+	else if (strcasecmp(txt,"NONE")==0) i = PT_NONE;
+	if (i>=0)
+	{
+		*element = i;
+		return 1;
+	}
+	for (i=1; i<PT_NUM; i++) {
+		if (strcasecmp(txt,ptypes[i].name)==0)
+		{
+			*element = i;
+			return 1;
+		}
+	}
+	strcpy(err, "Particle type not recognised");
+	return 0;
+}
+int console_parse_coords(char *txt, int *x, int *y, char *err)
+{
+	// TODO: use regex?
+	char *coordtxt;
+	char num[10] = "";
+	int nx = -1, ny = -1;
+	txt = mystrdup(txt);
+	coordtxt = strtok(txt, ",");
+	if (coordtxt) nx = atoi(coordtxt);
+	if (nx>=0 && nx<XRES) sprintf(num,"%d",nx);
+	if (!coordtxt || strcmp(coordtxt, num)!=0)
+	{
+		strcpy(err,"Invalid coordinates");
+		free(txt);
+		return 0;
+	}
+	strcpy(num,"");
+	coordtxt = strtok(NULL, ",");
+	if (coordtxt) ny = atoi(coordtxt);
+	if (ny>=0 && ny<YRES) sprintf(num,"%d",ny);
+	if (!coordtxt || strcmp(coordtxt, num)!=0)
+	{
+		strcpy(err,"Invalid coordinates");
+		free(txt);
+		return 0;
+	}
+	*x = nx;
+	*y = ny;
+	free(txt);
+	return 1;
+}
+int console_parse_partref(char *txt, int *which, char *err)
+{
+	// TODO: use regex?
+	int i = -1, nx, ny;
+	if (console_parse_coords(txt, &nx, &ny, err))
+	{
+		i = pmap[ny][nx];
+		if (!i || (i>>8)>=NPART)
+			i = -1;
+		else
+			i = i>>8;
+	}
+	else if (txt)
+	{
+		char *num = (char*)malloc(strlen(txt)+3);
+		strcpy(err,""); // suppress error message from failed coordinate parsing
+		i = atoi(txt);
+		sprintf(num,"%d",i);
+		if (!txt || strcmp(txt,num)!=0)
+			i = -1;
+		free(num);
+	}
+	if (i>=0 && i<NPART && parts[i].type)
+	{
+		*which = i;
+		return 1;
+	}
+	strcpy(err,"Particle does not exist");
+	return 0;
+}
diff --git a/src/main.c b/src/main.c
index f3dfe07..7f8c6b2 100644
--- a/src/main.c
+++ b/src/main.c
@@ -2503,7 +2503,7 @@ int main(int argc, char *argv[])
 	http_done();
 	return 0;
 }
-int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO: delete with coords, have 'set' work with coords as well
+int process_command(pixel *vid_buf,char *console,char *console_error) {
 
 	int nx,ny,i,j;
 	char *console2;
@@ -2556,17 +2556,21 @@ int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO:
 				console_mode = 0;
 			}
 		}
-		else if(strcmp(console2, "create")==0 && console3 && console4 && console5)
+		else if (strcmp(console2, "create")==0 && console3 && console4)
 		{
-			j = console_get_type(console3);
-			if (j<0)
-				sprintf(console_error, "Particle type not recognised", console2);
-			nx = atoi(console4);
-			ny = atoi(console5);
-			if(ny < 0 || nx < 0 || ny > YRES || nx > XRES)
-				sprintf(console_error, "Invalid Coordinates", console2);
-			else
-				create_part(-1,nx,ny,j);
+			if (console_parse_type(console3, &j, console_error)
+				&& console_parse_coords(console4, &nx, &ny, console_error))
+			{
+				if (!j)
+					strcpy(console_error, "Cannot create particle with type NONE");
+				else if (create_part(-1,nx,ny,j)<0)
+					strcpy(console_error, "Could not create particle");
+			}
+		}
+		else if ((strcmp(console2, "delete")==0 || strcmp(console2, "kill")==0) && console3)
+		{
+			if (console_parse_partref(console3, &i, console_error))
+				kill_part(i);
 		}
 		else if(strcmp(console2, "reset")==0 && console3)
 		{
@@ -2624,8 +2628,7 @@ int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO:
 				}
 				else
 				{
-					i = atoi(console4);
-					if(parts[i].type)
+					if (console_parse_partref(console4, &i, console_error))
 					{
 						j = atoi(console5);
 						parts[i].life = j;
@@ -2636,10 +2639,7 @@ int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO:
 			{
 				if(strcmp(console4, "all")==0)
 				{
-					j = console_get_type(console5);
-					if (j<0)
-						sprintf(console_error, "Particle type not recognised", console2);
-					else
+					if (console_parse_type(console5, &j, console_error))
 						for(i=0; i<NPART; i++)
 						{
 							if(parts[i].type)
@@ -2648,14 +2648,10 @@ int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO:
 				}
 				else
 				{
-					i = atoi(console4);
-					if(parts[i].type)
+					if (console_parse_partref(console4, &i, console_error)
+						&& console_parse_type(console5, &j, console_error))
 					{
-						j = console_get_type(console5);
-						if (j<0)
-							sprintf(console_error, "Particle type not recognised", console2);
-						else
-							parts[i].type = j;
+						parts[i].type = j;
 					}
 				}
 			}
@@ -2672,8 +2668,7 @@ int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO:
 				}
 				else
 				{
-					i = atoi(console4);
-					if(parts[i].type)
+					if (console_parse_partref(console4, &i, console_error))
 					{
 						j = atoi(console5);
 						parts[i].temp = j;
@@ -2693,8 +2688,7 @@ int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO:
 				}
 				else
 				{
-					i = atoi(console4);
-					if(parts[i].type)
+					if (console_parse_partref(console4, &i, console_error))
 					{
 						j = atoi(console5);
 						parts[i].tmp = j;
@@ -2714,8 +2708,7 @@ int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO:
 				}
 				else
 				{
-					i = atoi(console4);
-					if(parts[i].type)
+					if (console_parse_partref(console4, &i, console_error))
 					{
 						j = atoi(console5);
 						parts[i].x = j;
@@ -2735,8 +2728,7 @@ int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO:
 				}
 				else
 				{
-					i = atoi(console4);
-					if(parts[i].type)
+					if (console_parse_partref(console4, &i, console_error))
 					{
 						j = atoi(console5);
 						parts[i].y = j;
@@ -2747,19 +2739,18 @@ int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO:
 			{
 				if(strcmp(console4, "all")==0)
 				{
-					j = atoi(console5);
-					for(i=0; i<NPART; i++)
-					{
-						if(parts[i].type)
-							parts[i].ctype = j;
-					}
+					if (console_parse_type(console5, &j, console_error))
+						for(i=0; i<NPART; i++)
+						{
+							if(parts[i].type)
+								parts[i].ctype = j;
+						}
 				}
 				else
 				{
-					i = atoi(console4);
-					if(parts[i].type)
+					if (console_parse_partref(console4, &i, console_error)
+						&& console_parse_type(console5, &j, console_error))
 					{
-						j = atoi(console5);
 						parts[i].ctype = j;
 					}
 				}
@@ -2777,8 +2768,7 @@ int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO:
 				}
 				else
 				{
-					i = atoi(console4);
-					if(parts[i].type)
+					if (console_parse_partref(console4, &i, console_error))
 					{
 						j = atoi(console5);
 						parts[i].vx = j;
@@ -2798,8 +2788,7 @@ int process_command(pixel *vid_buf,char *console,char *console_error) { //TODO:
 				}
 				else
 				{
-					i = atoi(console4);
-					if(parts[i].type)
+					if (console_parse_partref(console4, &i, console_error))
 					{
 						j = atoi(console5);
 						parts[i].vy = j;