New custom games and custom rules screen (#464)

* New waves and limited respawning option.

Added ability to manipulate number of respawns per wave. Added option to hold counting for next wave until all enemies are destroyed

* Critical bug fixed

Fixed frozen wave timer when rules.waitForWaveToEnd was enabled

* Requested changes

* Missed Import

* New custom game and custom rules screen

RulePreset is now a Gamemode (because each of them has a different goal).
New button under Gamemode selection which opens a dialog to modify rules of gamemode.
Now without any mutually exclusive options

* Requested changes

* Applied some text sugestions

* Wrong waveInProgress message displaying fixed

* Unwanted text

* Text changes

* I broke git

* Fixed chrash

* More fixes

New rule : manyCores; needed for sanbox mode

* Visual fix

* Requested changes #1 : small oversights

* Moved respawning logic to Player

and another imports cleanup

* manyCores in now attackMode

* UI changes

* Given back waves to sandbox and integer input in custom rules

* Renamed functions in CustomRulesScreen

* SPACES... Actually one space...

core/src/io/anuke/mindustry/game/Gamemode.java

@@ -4,7 +4,7 @@ import io.anuke.arc.Core;
 import io.anuke.arc.function.Supplier;
 
 /** Defines preset rule sets.. */
-public enum RulePreset{
+public enum Gamemode{
     survival(() -> new Rules(){{
         waveTimer = true;
         waves = true;
@@ -16,11 +16,12 @@ public enum RulePreset{
         waves = true;
         waveTimer = false;
         respawnTime = 0f;
-        spawns = DefaultWaves.get();
     }}),
     attack(() -> new Rules(){{
         enemyCheat = true;
         unitDrops = true;
+        waves = false;
+        attackMode = true;
     }}),
     pvp(() -> new Rules(){{
         pvp = true;
@@ -32,11 +33,12 @@ public enum RulePreset{
         playerHealthMultiplier = 0.8f;
         unitBuildSpeedMultiplier = 3f;
         unitHealthMultiplier = 2f;
+        attackMode = true;
     }});
 
     private final Supplier<Rules> rules;
 
-    RulePreset(Supplier<Rules> rules){
+    Gamemode(Supplier<Rules> rules){
         this.rules = rules;
     }
 

core/src/io/anuke/mindustry/game/Rules.java

@@ -45,4 +45,12 @@ public class Rules{
     public byte zone = -1;
     /** Spawn layout. Since only zones modify this, it should be assigned on save load. */
     public transient Array<SpawnGroup> spawns = DefaultWaves.get();
+    /** Determines if there should be limited respawns. */
+    public boolean limitedRespawns = false;
+    /** How many times player can respawn during one wave. */
+    public int respawns = 5;
+    /** Hold wave timer until all enemies are destroyed. */
+    public boolean waitForWaveToEnd = false;
+    /** Determinates if gamemode is attack mode */
+    public boolean attackMode = false;
 }