Interpolate angle for 2d map view

nukeykt · Aug 3, 2023 · 4f46c25 · 4f46c25
1 parent 0b68698
commit 4f46c25
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Showing 3 changed files with 34 additions and 6 deletions.
diff --git a/source/blood/src/map2d.cpp b/source/blood/src/map2d.cpp
@@ -214,14 +214,14 @@ void CViewMap::Draw(void)
         viewResizeView(viewSize);
 }
 
-void CViewMap::Process(spritetype *pSprite)
+void CViewMap::Process(int nX, int nY, short nAng)
 {
     nZoom = gZoom;
     if (bFollowMode)
     {
-        x = pSprite->x;
-        y = pSprite->y;
-        angle = pSprite->ang;
+        x = nX;
+        y = nY;
+        angle = nAng;
     }
     else
     {

diff --git a/source/blood/src/map2d.h b/source/blood/src/map2d.h
@@ -34,7 +34,7 @@ class CViewMap {
     CViewMap();
     void Init(int, int, int, short, char);
     void Draw(void);
-    void Process(spritetype *pSprite);
+    void Process(int nX, int nY, short nAng);
     void SetPos(int *, int*);
     void FollowMode(char);
 };

diff --git a/source/blood/src/view.cpp b/source/blood/src/view.cpp
@@ -3899,7 +3899,35 @@ void viewDrawScreen(void)
     }
     if (gViewMode == 4)
     {
-        gViewMap.Process(gView->pSprite);
+        int cX = 0, cY = 0, nAng = 0;
+        if (gViewMap.bFollowMode) // calculate get current player position for 2d map for follow mode
+        {
+            cX = gView->pSprite->x, cY = gView->pSprite->y, nAng = gView->pSprite->ang;
+            if (!VanillaMode()) // interpolate angle for 2d map view
+            {
+                fix16_t cA = gView->q16ang;
+                if (gViewInterpolate)
+                {
+                    if (numplayers > 1 && gView == gMe && gPrediction && gMe->pXSprite->health > 0)
+                    {
+                        cX = interpolate(predictOld.at50, predict.at50, gInterpolate);
+                        cY = interpolate(predictOld.at54, predict.at54, gInterpolate);
+                        cA = interpolateangfix16(predictOld.at30, predict.at30, gInterpolate);
+                    }
+                    else
+                    {
+                        VIEW *pView = &gPrevView[gViewIndex];
+                        cX = interpolate(pView->at50, cX, gInterpolate);
+                        cY = interpolate(pView->at54, cY, gInterpolate);
+                        cA = interpolateangfix16(pView->at30, cA, gInterpolate);
+                    }
+                }
+                if (gView == gMe && (numplayers <= 1 || gPrediction) && gView->pXSprite->health != 0)
+                    cA = gViewAngle;
+                nAng = fix16_to_int(cA);
+            }
+        }
+        gViewMap.Process(cX, cY, nAng);
     }
     viewDrawInterface(delta);
     int zn = ((gView->zWeapon-gView->zView-(12<<8))>>7)+220;