Uniformselection

Added uniform selection of units.
Uniform means you can select multiple units, but only of the same type.
To make a unit uniform-selectable you need to add
```<uniform-selection value="true"/>```
to the ```<parameters>``` tag of a unit.

source/glest_game/gui/selection.cpp

@@ -81,6 +81,16 @@ bool Selection::select(Unit *unit) {
 			return false;
 		}
 
+		//check if multitypesel
+		if(selectedUnits.size() > 0) {
+			if(selectedUnits.front()->getType()->getUniformSelect() == true && selectedUnits.front()->getType() != unit->getType()) {
+				return false;
+			}
+			if(unit->getType()->getUniformSelect() == true && selectedUnits.front()->getType() != unit->getType()) {
+				return false;
+			}
+		}
+
 		//check if enemy
 		if(canSelectUnitFactionCheck(unit) == false && isEmpty() == false) {
 			return false;
@@ -270,6 +280,19 @@ bool Selection::addUnitToGroup(int groupIndex,Unit *unit) {
 		}
 	}
 
+	// check for uniformselect units
+	if((int)groups[groupIndex].size()>0 ){
+		Unit* unitInGroup=groups[groupIndex][0];
+		if( unit->getType()->getUniformSelect() && unitInGroup->getType() != unit->getType()) {
+			//dont add uniform selection unit
+			return false;
+		}
+		if( unitInGroup->getType()->getUniformSelect() && unitInGroup->getType() != unit->getType()){
+			//dont add another unit to a group of uniform selection units
+			return false;
+		}
+	}
+
 	if(unit != NULL && !groupIsFull) {
 		groups[groupIndex].push_back(unit);
 		return true;

source/glest_game/types/unit_type.cpp

@@ -93,6 +93,7 @@ UnitType::UnitType() : ProducibleType() {
 	healthbarthickness=-1.0f;
 	healthbarVisible=hbvUndefined;
     multiSelect= false;
+    uniformSelect= false;
     commandable= true;
 	armorType= NULL;
 	rotatedBuildPos=0;
@@ -356,6 +357,11 @@ void UnitType::loaddd(int id,const string &dir, const TechTree *techTree,
 		//multi selection
 		multiSelect= parametersNode->getChild("multi-selection")->getAttribute("value")->getBoolValue();
 
+		//uniform selection
+		if(parametersNode->hasChild("uniform-selection")) {
+			uniformSelect= parametersNode->getChild("uniform-selection")->getAttribute("value")->getBoolValue();
+		}
+
 		//commandable
 		if(parametersNode->hasChild("commandable")){
 			commandable= parametersNode->getChild("commandable")->getAttribute("value")->getBoolValue();
@@ -1307,6 +1313,7 @@ std::string UnitType::toString() const {
 	result += " light = " + intToStr(light);
 	result += " lightColor = " + lightColor.getString();
 	result += " multiSelect = " + intToStr(multiSelect);
+	result += " uniformSelect = " + intToStr(uniformSelect);
 	result += " commandable = " + intToStr(commandable);
 	result += " sight = " + intToStr(sight);
 	result += " size = " + intToStr(size);

source/glest_game/types/unit_type.h

@@ -192,6 +192,7 @@ class UnitType: public ProducibleType, public ValueCheckerVault {
 	float healthbarthickness;
 	int healthbarVisible;
     bool multiSelect;
+    bool uniformSelect;
     bool commandable;
     int sight;
     int size;							//size in cells
@@ -283,6 +284,7 @@ class UnitType: public ProducibleType, public ValueCheckerVault {
 	inline float getHealthbarThickness() const							{return healthbarthickness;}
 	inline int getHealthbarVisible() const							{return healthbarVisible;}
 	inline bool getMultiSelect() const							{return multiSelect;}
+	inline bool getUniformSelect() const							{return uniformSelect;}
 	inline bool isCommandable() const							{return commandable;}
 	inline int getSight() const								{return sight;}
 	inline int getSize() const									{return size;}