From 8aedeaf12c7dbf35f2f75f1b063b76a4fad06f30 Mon Sep 17 00:00:00 2001
From: Star Rauchenberger <fefferburbia@gmail.com>
Date: Tue, 6 Jul 2021 10:12:59 -0400
Subject: Added "floating" sprite attribute

Sprites with this flag enabled will ignore map collision.
---
 src/game.cpp             |  1 +
 src/map.cpp              |  2 ++
 src/map.h                |  1 +
 src/sprite.h             |  1 +
 src/transform_system.cpp | 12 ++++++++----
 5 files changed, 13 insertions(+), 4 deletions(-)

diff --git a/src/game.cpp b/src/game.cpp
index dff8af0..1b2cda9 100644
--- a/src/game.cpp
+++ b/src/game.cpp
@@ -88,6 +88,7 @@ void Game::loadMap(std::string filename) {
     if (!p.backgroundScript.empty()) {
       backgroundScripts.push_back({spriteId, p.backgroundScript});
     }
+    getSprite(spriteId).floating = p.floating;
   }
 
   for (const Trigger& t : map_->getTriggers()) {
diff --git a/src/map.cpp b/src/map.cpp
index f28a976..c6729d6 100644
--- a/src/map.cpp
+++ b/src/map.cpp
@@ -123,6 +123,8 @@ Map::Map(std::string_view name) : name_(name) {
               p.bumpPlayerScript = property.getStringValue();
             } else if (property.getName() == "backgroundScript") {
               p.backgroundScript = property.getStringValue();
+            } else if (property.getName() == "floating") {
+              p.floating = property.getBoolValue();
             }
           }
 
diff --git a/src/map.h b/src/map.h
index 48c0223..4019428 100644
--- a/src/map.h
+++ b/src/map.h
@@ -37,6 +37,7 @@ struct Prototype {
   MirrorType mirrorType = MirrorType::None;
   int mirrorAxis = 0;
   std::string spriteToMirror;
+  bool floating = false;
 };
 
 struct Trigger {
diff --git a/src/sprite.h b/src/sprite.h
index e7cb55b..406053e 100644
--- a/src/sprite.h
+++ b/src/sprite.h
@@ -84,6 +84,7 @@ public:
   std::string bumpPlayerScript;
   std::string enclosureZone;
   bool sliding = false;
+  bool floating = false;
 
   // Animation (internals)
   bool isAnimated = false;
diff --git a/src/transform_system.cpp b/src/transform_system.cpp
index 825514f..425d8ea 100644
--- a/src/transform_system.cpp
+++ b/src/transform_system.cpp
@@ -81,7 +81,8 @@ CollisionResult TransformSystem::checkCollision(int spriteId, vec2i curLoc, vec2
   }
 
   if (dirHasDir(dir, Direction::right)) {
-    if (newTileDR.x() > oldTileDR.x() &&
+    if (!sprite.floating &&
+        newTileDR.x() > oldTileDR.x() &&
         newColDR.x() < mapBounds.w()) {
       for (int y = newTileUL.y(); y <= newTileDR.y(); y++) {
         if (map.isBlocked(newTileDR.x(), y)) {
@@ -138,7 +139,8 @@ CollisionResult TransformSystem::checkCollision(int spriteId, vec2i curLoc, vec2
   }
 
   if (dirHasDir(dir, Direction::left)) {
-    if (newTileUL.x() < oldTileUL.x() &&
+    if (!sprite.floating &&
+        newTileUL.x() < oldTileUL.x() &&
         newColUL.x() >= 0) {
       for (int y = newTileUL.y(); y <= newTileDR.y(); y++) {
         if (map.isBlocked(newTileUL.x(), y)) {
@@ -217,7 +219,8 @@ CollisionResult TransformSystem::checkCollision(int spriteId, vec2i curLoc, vec2
   newTileDR = newColDR / map.getTileSize();
 
   if (dirHasDir(dir, Direction::down)) {
-    if (newTileDR.y() > oldTileDR.y() &&
+    if (!sprite.floating &&
+        newTileDR.y() > oldTileDR.y() &&
         newColDR.y() < mapBounds.h()) {
       for (int x = newTileUL.x(); x <= newTileDR.x(); x++) {
         if (map.isBlocked(x, newTileDR.y())) {
@@ -274,7 +277,8 @@ CollisionResult TransformSystem::checkCollision(int spriteId, vec2i curLoc, vec2
   }
 
   if (dirHasDir(dir, Direction::up)) {
-    if (newTileUL.y() < oldTileUL.y() &&
+    if (!sprite.floating &&
+        newTileUL.y() < oldTileUL.y() &&
         newColUL.y() >= 0) {
       for (int x = newTileUL.x(); x <= newTileDR.x(); x++) {
         if (map.isBlocked(x, newTileUL.y())) {
-- 
cgit 1.4.1