From d3c8df87bf415eaa4de0696999e8e9073b803931 Mon Sep 17 00:00:00 2001
From: Lucas GAUTHERON <lucas.gautheron@gmail.com>
Date: Sat, 14 May 2011 12:12:28 +0000
Subject: [PATCH] map overview spectate mode ?

git-svn-id: svn://svn.code.sf.net/p/actiongame/code/trunk/ac@6425 e016b1c5-ed68-44aa-a2f7-31cac88cffde
---
 source/src/entity.h        |  2 +-
 source/src/rendergl.cpp    | 34 +++++++++++++++++++++++++++++++++-
 source/src/worldrender.cpp |  2 +-
 3 files changed, 35 insertions(+), 3 deletions(-)

diff --git a/source/src/entity.h b/source/src/entity.h
index 7c2f0251..be409a43 100644
--- a/source/src/entity.h
+++ b/source/src/entity.h
@@ -91,7 +91,7 @@ static inline const char *team_string(int t, bool abbr = false) { const char **n
 enum { ENT_PLAYER = 0, ENT_BOT, ENT_CAMERA, ENT_BOUNCE };
 enum { CS_ALIVE = 0, CS_DEAD, CS_SPAWNING, CS_LAGGED, CS_EDITING, CS_SPECTATE };
 enum { CR_DEFAULT = 0, CR_ADMIN };
-enum { SM_NONE = 0, SM_DEATHCAM, SM_FOLLOW1ST, SM_FOLLOW3RD, SM_FOLLOW3RD_TRANSPARENT, SM_FLY, SM_NUM };
+enum { SM_NONE = 0, SM_DEATHCAM, SM_FOLLOW1ST, SM_FOLLOW3RD, SM_FOLLOW3RD_TRANSPARENT, SM_FLY, SM_OVERVIEW, SM_NUM };
 enum { FPCN_VOID = -3, FPCN_DEATHCAM = -2, FPCN_FLY = -1 };
 
 class worldobject
diff --git a/source/src/rendergl.cpp b/source/src/rendergl.cpp
index f58da153..eeb11835 100644
--- a/source/src/rendergl.cpp
+++ b/source/src/rendergl.cpp
@@ -490,6 +490,27 @@ void recomputecamera()
                 resetcamera();
                 camera1->eyeheight = 1.0f;
                 break;
+            case SM_OVERVIEW:
+            {
+                // WIP, might not be released..
+                // FIXME : bad feeling with walls ATM because of perspective
+                /*camera1->yaw = 0;
+                camera1->pitch = -90;
+                camera1->o.x = mapdims[0] + mapdims[4]/2;
+                camera1->o.y = mapdims[1] + mapdims[5]/2;
+                camera1->o.z = vec(mapdims[4]/2.0f, mapdims[5]/2.0f, 0.0f).magnitude() / tan( (spectfov - 10) * RAD /2.0f);*/
+                // from drawminimap...
+                camera1->reset();
+                camera1->type = ENT_CAMERA;
+                camera1->o.x = mapdims[0] + mapdims[4]/2;
+                camera1->o.y = mapdims[1] + mapdims[5]/2;
+                camera1->o.z = mapdims[7] + 1;
+                camera1->pitch = -90;
+                camera1->yaw = 0;
+
+                disableraytable();                
+                break;
+            }
             case SM_FOLLOW1ST:
             {
                 playerent *f = updatefollowplayer();
@@ -815,7 +836,17 @@ VARP(spechudgun, 0, 1, 1);
 void setperspective(float fovy, float aspect, float nearplane, float farplane)
 {
     GLdouble ydist = nearplane * tan(fovy/2*RAD), xdist = ydist * aspect;
-    glFrustum(-xdist, xdist, -ydist, ydist, nearplane, farplane);
+    if(player1->isspectating() && player1->spectatemode == SM_OVERVIEW)
+    {
+        int gdim = max(mapdims[4], mapdims[5]);
+        if(!gdim) gdim = ssize/2;
+        int orthd = 2 + gdim/2;
+        glOrtho(-orthd, orthd, -orthd, orthd, 0, (mapdims[7]-mapdims[6])+2); // depth of map +2 covered
+    }
+    else
+    {
+        glFrustum(-xdist, xdist, -ydist, ydist, nearplane, farplane);
+    }
 }
 
 void sethudgunperspective(bool on)
@@ -975,6 +1006,7 @@ void gl_drawframe(int w, int h, float changelod, float curfps)
 
     renderstrips();
 
+
     xtraverts = 0;
 
     startmodelbatches();
diff --git a/source/src/worldrender.cpp b/source/src/worldrender.cpp
index 3ef409f7..2d6b5959 100644
--- a/source/src/worldrender.cpp
+++ b/source/src/worldrender.cpp
@@ -270,7 +270,7 @@ void distlod(int &low, int &high, int angle, float widef)
 void render_world(float vx, float vy, float vh, float changelod, int yaw, int pitch, float fov, float fovy, int w, int h)
 {
     loopi(LARGEST_FACTOR) stats[i] = 0;
-    min_lod = minimap ? MAX_LOD : MIN_LOD+abs(pitch)/12;
+    min_lod = minimap || (player1->isspectating() && player1->spectatemode == SM_OVERVIEW) ? MAX_LOD : MIN_LOD+abs(pitch)/12;
     yaw = 360-yaw;
     float widef = fov/75.0f;
     int cdist = abs(yaw%90-45);