feat: add condition system for events

sonic-radiance.love/core/utils/table.lua

@@ -33,6 +33,14 @@ function Table.contain(table, content)
   return false
 end
 
+function Table.toString(table)
+  local string = "{"
+  for key, value in pairs(table) do
+    string = string .. key .. ":" .. value .. ","
+  end
+  return string .. "}"
+end
+
 function Table.reduce(list, fn)
   local acc
   for k, v in ipairs(list) do

sonic-radiance.love/datas/gamedata/events/test/mighty.lua

@@ -0,0 +1,6 @@
+return {
+    ["actions"] = {
+        {"dialogBox", "haveMoney:lt:300", "You seem to be a bit short on money...", "Mighty", ""},
+        {"dialogBox", "haveMoney:ge:300", "Wow you're rich !", "Mighty", ""}
+    }
+}

sonic-radiance.love/datas/gamedata/maps/sti/plain/test.lua

@@ -503,6 +503,7 @@ return {
           properties = {
             ["charId"] = 3,
             ["charset"] = "perso2",
+            ["event"] = "test.mighty",
             ["isSolid"] = true
           }
         },

sonic-radiance.love/datas/gamedata/maps/sti/plain/test.tmx

@@ -113,6 +113,7 @@
    <properties>
     <property name="charId" type="int" value="3"/>
     <property name="charset" value="perso2"/>
+    <property name="event" value="test.mighty"/>
     <property name="isSolid" type="bool" value="true"/>
    </properties>
   </object>

sonic-radiance.love/game/events/conditions/init.lua

@@ -0,0 +1,8 @@
+local Conditions = {}
+local ConditionsUtils = require "game.events.conditions.utils"
+
+function Conditions.haveMoney(cond)
+    return ConditionsUtils.testVariables(game.loot.rings , cond[2], cond[3])
+end
+
+return Conditions

sonic-radiance.love/game/events/conditions/utils.lua

@@ -0,0 +1,31 @@
+local ConditionsUtils = {}
+
+function ConditionsUtils.testVariables(var1, testType, var2)
+    local var2 = tonumber(var2)
+    if (testType == "eq" and var1 == var2) then
+        return true
+    end
+    if (testType == "ne" and var1 ~= var2) then
+        return true
+    end
+    if (testType == "gt" and var1 > var2) then
+        return true
+    end
+    if (testType == "ge" and var1 >= var2) then
+        return true
+    end
+    if (testType == "lt" and var1 < var2) then
+        return true
+    end
+    if (testType == "le" and var1 <= var2) then
+        return true
+    end
+
+    return false
+end
+
+function ConditionsUtils.testBool(bool, boolType)
+    return (bool == (boolType == "V"))
+end
+
+return ConditionsUtils;

sonic-radiance.love/game/events/init.lua

@@ -2,6 +2,7 @@ local EventManager = Object:extend()
 
 local stepObjectList = require "game.events.event"
 local eventUtils = require "game.events.utils"
+local Conditions = require "game.events.conditions"
 
 
 function EventManager:new(scene)
@@ -36,16 +37,27 @@ function EventManager:addFlag(flagname, flagcontent)
   table.insert(self.flags, flag)
 end
 
+function EventManager:testCondition(condition)
+  if (utils.string.isEmpty(condition)) then
+    return true
+  end
+  local conditionArgs = utils.string.split(condition, ":")
+  if (Conditions[conditionArgs[1]] == nil) then
+    return self:haveFlag(condition)
+  else
+    local conditionFulfilled = Conditions[conditionArgs[1]](conditionArgs)
+    if (conditionArgs[#conditionArgs] == "not") then
+      conditionFulfilled = (not conditionFulfilled)
+    end
+    return conditionFulfilled
+  end
+end
+
 function EventManager:haveFlag(flagToTest)
   if (flagToTest == nil or flagToTest == "") then
     return true
   end
-  for i, flag in ipairs(self.flags) do
-    if (flag == flagToTest) then
-      return true
-    end
-  end
-  return false
+  return utils.table.contain(self.flags, flagToTest)
 end
 
 function EventManager:update(dt)
@@ -63,7 +75,7 @@ function EventManager:switchStep()
     self.currentStepId = self.currentStepId + 1
     local stepData = eventUtils.getStepDatas(self.stepList[self.currentStepId])
     core.debug:print("event", "Starting step " .. stepData.name)
-    if (not self:haveFlag(stepData.condition)) then
+    if (not self:testCondition(stepData.condition)) then
       self:switchStep()
     else
       if (stepObjectList[stepData.name] ~= nil) then