From 01ef3cbd62544e32d0954ea86cd8e9722fa10288 Mon Sep 17 00:00:00 2001
From: mathnerd314 <mathnerd314@837edb03-e0f3-0310-88ca-d4d4e8b29345>
Date: Fri, 19 Mar 2010 23:14:02 +0000
Subject: [PATCH] Revert camera until I come up with a better idea

git-svn-id: http://supertux.lethargik.org/svn/supertux/trunk/supertux@6616 837edb03-e0f3-0310-88ca-d4d4e8b29345
---
 src/object/camera.cpp | 66 +++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 53 insertions(+), 13 deletions(-)

diff --git a/src/object/camera.cpp b/src/object/camera.cpp
index 93fb81829..b7e94328c 100644
--- a/src/object/camera.cpp
+++ b/src/object/camera.cpp
@@ -64,7 +64,7 @@ public:
   float clamp_x;
   float clamp_y;
 
-  float dead_zone_x;
+  float dynamic_speed_sm;
 
   CameraConfig() :
     xmode(4),
@@ -81,7 +81,7 @@ public:
     sensitive_x(-1),
     clamp_x(0.1666f),
     clamp_y(0.3f),
-    dead_zone_x(64.0f)
+    dynamic_speed_sm(0.8f)
   {
   }
 
@@ -107,7 +107,7 @@ public:
     camconfig->get("kirby-rectsize-y", kirby_rectsize_y);
     camconfig->get("edge-x", edge_x);
     camconfig->get("sensitive-x", sensitive_x);
-    camconfig->get("dead-zone-x", dead_zone_x);
+    camconfig->get("dynamic-speed-sm", dynamic_speed_sm);
   }
 };
 
@@ -358,12 +358,33 @@ Camera::update_scroll_normal(float elapsed_time)
                                  player_pos.y - SCREEN_HEIGHT * (0.5f - halfsize));
   }
   if(ymode == 4) {
-    // Magic Konstant (include config multiplier?)
-    float K = SCREEN_HEIGHT / (16.0f * 2 + SCREEN_HEIGHT);
+    float upperend = SCREEN_HEIGHT * config.edge_x;
+    float lowerend = SCREEN_HEIGHT * (1 - config.edge_x);
 
-    lookahead_pos.y = player_pos.y + K*(lookahead_pos.y - player_pos.y);
+    if (player_delta.y < -CAMERA_EPSILON) {
+      // walking left
+      lookahead_pos.y -= player_delta.y * config.dynamic_speed_sm;
 
-    cached_translation.y = 2 * player_pos.y - lookahead_pos.y - (SCREEN_WIDTH / 2);
+      if(lookahead_pos.y > lowerend) {
+        lookahead_pos.y = lowerend;
+      }
+    } else if (player_delta.y > CAMERA_EPSILON) {
+      // walking right
+      lookahead_pos.y -= player_delta.y * config.dynamic_speed_sm;
+      if(lookahead_pos.y < upperend) {
+        lookahead_pos.y = upperend;
+      }
+    }
+
+    // adjust for level ends
+    if (player_pos.y < upperend) {
+      lookahead_pos.y = upperend;
+    }
+    if (player_pos.y > sector->get_width() - upperend) {
+      lookahead_pos.y = lowerend;
+    }
+
+    cached_translation.y = player_pos.y - lookahead_pos.y;
   }
 
   translation.y = cached_translation.y;
@@ -508,14 +529,33 @@ Camera::update_scroll_normal(float elapsed_time)
                                  player_pos.x - SCREEN_WIDTH * (0.5f - halfsize));
   }
   if(xmode == 4) {
-    // Magic Konstant
-    float K = SCREEN_WIDTH / (320.0f /* MAX_RUN_XM */ /64.0f * 2 + SCREEN_WIDTH);
+    float LEFTEND = SCREEN_WIDTH * config.edge_x;
+    float RIGHTEND = SCREEN_WIDTH * (1 - config.edge_x);
+
+    if (player_delta.x < -CAMERA_EPSILON) {
+      // walking left
+      lookahead_pos.x -= player_delta.x * config.dynamic_speed_sm;
+      if(lookahead_pos.x > RIGHTEND) {
+        lookahead_pos.x = RIGHTEND;
+      }
+
+    } else if (player_delta.x > CAMERA_EPSILON) {
+      // walking right
+      lookahead_pos.x -= player_delta.x * config.dynamic_speed_sm;
+      if(lookahead_pos.x < LEFTEND) {
+        lookahead_pos.x = LEFTEND;
+      }
+    }
 
-    // Only update in dead zone
-    if( fabsf(player_pos.x - lookahead_pos.x) > config.dead_zone_x )
-      lookahead_pos.x = player_pos.x + K*(lookahead_pos.x - player_pos.x);
+    // adjust for level ends
+    if (player_pos.x < LEFTEND) {
+      lookahead_pos.x = LEFTEND;
+    }
+    if (player_pos.x > sector->get_width() - LEFTEND) {
+      lookahead_pos.x = RIGHTEND;
+    }
 
-    cached_translation.x = 2 * player_pos.x - lookahead_pos.x - (SCREEN_WIDTH / 2);
+    cached_translation.x = player_pos.x - lookahead_pos.x;
   }
 
   translation.x = cached_translation.x;
-- 
2.11.0