From ca721ec8acdc487ad66eb7a8c483403237c3f3fb Mon Sep 17 00:00:00 2001
From: Kazhnuz <kazhnuz@chlore.net>
Date: Fri, 26 Jul 2019 11:53:10 +0200
Subject: [PATCH] feat(camera+map): add a way to add padding to map limits

---
 CHANGELOG.md                           |  2 ++
 gamecore/modules/world/camera/init.lua |  4 ++--
 gamecore/modules/world/maps/parent.lua | 18 +++++++++++++++++-
 3 files changed, 21 insertions(+), 3 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index b5de3de..9788772 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -15,6 +15,8 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 - **core:** add a way to activate easily debug mode directly
 
+- **camera+maps:** add a way to add padding to map limits
+
 ### Changed
 
 - **world:** extract map module from the world module
diff --git a/gamecore/modules/world/camera/init.lua b/gamecore/modules/world/camera/init.lua
index 7640d02..49487ff 100644
--- a/gamecore/modules/world/camera/init.lua
+++ b/gamecore/modules/world/camera/init.lua
@@ -274,8 +274,8 @@ function CameraSystem:limitView(id)
   local posy = self.views.list[id].y
   local minx = worldx + self.views.width  / 2
   local miny = worldy + self.views.height / 2
-  local maxx = worldw - minx
-  local maxy = worldh - miny
+  local maxx = worldw - self.views.width  / 2
+  local maxy = worldh - self.views.height / 2
 
   self.views.list[id].x = utils.math.between(posx, minx, maxx)
   self.views.list[id].y = utils.math.between(posy, miny, maxy)
diff --git a/gamecore/modules/world/maps/parent.lua b/gamecore/modules/world/maps/parent.lua
index 17207a5..a1b445d 100644
--- a/gamecore/modules/world/maps/parent.lua
+++ b/gamecore/modules/world/maps/parent.lua
@@ -11,6 +11,7 @@ function ParentMap:new(world, r, g, b)
   local b = b or 128
   self.backgroundColor = {r, g, b}
 
+  self:setPadding()
   self:register()
 end
 
@@ -18,6 +19,16 @@ function ParentMap:register()
   self.world.map = self
 end
 
+function ParentMap:setPadding(x1, y1, x2, y2)
+  local padding = {}
+  padding.x1 = x1 or 0
+  padding.y1 = y1 or padding.x1
+  padding.x2 = x2 or padding.x1
+  padding.y2 = y2 or padding.y1
+
+  self.padding = padding
+end
+
 -- UPDATE FUNCTION
 -- Update or modify the map
 
@@ -62,13 +73,18 @@ function ParentMap:getBackgroundColor()
   return self.backgroundColor[1]/256, self.backgroundColor[2]/256, self.backgroundColor[3]/256
 end
 
+function ParentMap:getPadding()
+  return self.padding.x1, self.padding.y1, self.padding.x2, self.padding.y2
+end
+
 function ParentMap:getDimensions()
   return core.screen:getDimensions()
 end
 
 function ParentMap:getBox()
+  local x1, y1, x2, y2 = self:getPadding()
   local w, h = self:getDimensions()
-  return 0, 0, w, h
+  return -x1, -y1, w+x2, h+y2
 end
 
 function ParentMap:drawBackgroundColor()