[Change] xml now loads from data pack.

[Add] Ship xml syntax checking.

dat/fleet.xml

@@ -3,7 +3,7 @@
   <fleet name="Test">
     <faction>2</faction>
       <pilots>
-        <pilot chance='100'>Miss. Test</pilot>
+        <pilot chance='100'>Test</pilot>
       </pilots>
   </fleet>
   <fleet name="Merchant Ship">

dat/ship.xml

@@ -26,8 +26,8 @@
 			<outfit quantity='2'>laser</outfit>
 		</outfits>
   </ship>
-	<ship name="Miss. Test">
-		<GFX>enemyship.png</GFX>
+	<ship name="Test">
+		<GFX>ship1.png</GFX>
 		<class>1</class>
 		<movement>
 			<thrust>180</thrust>
@@ -38,9 +38,9 @@
 			<shield>160</shield>
 			<armor>120</armor>
 			<energy>360</energy>
-			<shieldregen>90</shieldregen>
-			<armorregen>60</armorregen>
-			<energyregen>50</energyregen>
+			<shield_regen>90</shield_regen>
+			<armor_regen>60</armor_regen>
+			<energy_regen>50</energy_regen>
 		</health>
 		<characteristics>
 			<crew>9</crew>

src/main.c

@@ -202,7 +202,7 @@ int main(int argc, char** argv) {
   gl_bindCamera(&player->solid->pos);
   space_init();
 
-  pilot_create(get_ship("Miss. Test"), NULL, NULL, NULL, 0);
+  pilot_create(get_ship("Test"), NULL, NULL, NULL, 0);
 
   time = SDL_GetTicks();
 

src/ship.c

@@ -2,6 +2,7 @@
 #include <libxml/xmlreader.h>
 
 #include "log.h"
+#include "pack.h"
 #include "ship.h"
 
 #define MAX_PATH_NAME 20 // Maximum size of the path.
@@ -27,20 +28,23 @@ Ship* get_ship(const char* name) {
   for(i = 0; i < ships; i++)
     if(strcmp((tmp+i)->name, name)==0) break;
   
+  if(i == ships) // Ship doesn't exist, game will probably crash now.
+    WARN("Ship %s does not exist", name);
+
   return tmp+1;
 }
 
-Ship* ship_parse(xmlNodePtr node) {
-  xmlNodePtr cur;
+Ship* ship_parse(xmlNodePtr parent) {
+  xmlNodePtr cur, node;
   Ship* tmp = CALLOC_L(Ship);
 
   char str[MAX_PATH_NAME] = "\0";
 
-  tmp->name = (char*)xmlGetProp(node, (xmlChar*)"name");
+  tmp->name = (char*)xmlGetProp(parent, (xmlChar*)"name");
 
-  node = node->xmlChildrenNode;
+  node = parent->xmlChildrenNode;
 
-  while((node = node->next)) {
+  while((node = node->next)) { // Load all the data.
     if(strcmp((char*)node->name, "GFX")==0) {
       cur = node->children;
       if(strcmp((char*)cur->name, "text")==0) {
@@ -98,34 +102,51 @@ Ship* ship_parse(xmlNodePtr node) {
   }
   tmp->thrust *= tmp->mass; // Helps keep number sane.
 
+#define MELEMENT(o,s) if(o == 0) WARN("Ship '%s' missing '"s"' element", tmp->name)
+  if(tmp->name == NULL) WARN("Ship '%s' missing 'name' tag", tmp->name);
+  if(tmp->gfx_ship == NULL) WARN("Ship '%s' missing 'GFX' element", tmp->name);
+  MELEMENT(tmp->thrust,       "thrust");
+  MELEMENT(tmp->turn,         "turn");
+  MELEMENT(tmp->speed,        "speed");
+  MELEMENT(tmp->crew,         "crew");
+  MELEMENT(tmp->mass,         "mass");
+  MELEMENT(tmp->armor,        "armor");
+  MELEMENT(tmp->armor_regen,  "armor_regen");
+  MELEMENT(tmp->shield,       "shield");
+  MELEMENT(tmp->shield_regen, "shield_regen");
+  MELEMENT(tmp->energy,       "energy");
+  MELEMENT(tmp->energy_regen, "energt_regen");
+  MELEMENT(tmp->cap_cargo,    "cap_cargo");
+  MELEMENT(tmp->cap_weapon,   "cap_weapon");
+#undef MELEMENT
+
   DEBUG("Loaded ship '%s'", tmp->name);
   return tmp;
 }
 
 int ships_load(void) {
-  xmlTextReaderPtr reader;
   xmlNodePtr node;
+
+  uint32_t bufsize;
+  char* buf = pack_readfile(DATA, SHIP_DATA, &bufsize);
+  xmlDocPtr doc = xmlParseMemory(buf, bufsize);
+  
   Ship* tmp = NULL;
 
-  if((reader = xmlNewTextReaderFilename(SHIP_DATA)) == NULL) {
-    WARN("XML error reading " SHIP_DATA);
+  node = doc->xmlChildrenNode; // Ships node.
+  if(strcmp((char*)node->name, XML_ID)) {
+    ERR("Malformed ships xml file: missing tag %s", XML_ID);
     return -1;
   }
 
-  // Get to the start of the "ships" section.
-  while(xmlTextReaderRead(reader)==1) {
-    if(xmlTextReaderNodeType(reader)==XML_NODE_START &&
-          strcmp((char*)xmlTextReaderConstName(reader), XML_ID) == 0) break;
+  node = node->xmlChildrenNode; // First ship node.
+  if(node == NULL) {
+    ERR("Malformed ships xml file: is missing ships");
+    return -1;
   }
   
-  xmlTextReaderRead(reader); // At ships node.
-
-  while(xmlTextReaderRead(reader)==1) {
-    if(xmlTextReaderNodeType(reader)==XML_NODE_START &&
-          strcmp((char*)xmlTextReaderConstName(reader), XML_SHIP)==0) {
-      
-      node = xmlTextReaderCurrentNode(reader); // Node to processr
-      if(node == NULL) break; // No node.
+  do {
+    if(node->type == XML_NODE_START && strcmp((char*)node->name, XML_SHIP)==0) {
       if(ship_stack == NULL) {
         ship_stack = tmp = ship_parse(node);
         ships = 1;
@@ -136,8 +157,10 @@ int ships_load(void) {
         free(tmp);
       }
     }
-  }
-  xmlFreeTextReader(reader);
+  } while((node = node->next));
+
+  xmlFreeDoc(doc);
+  free(buf);
   return 0;
 }