1 files changed, 116 insertions, 0 deletions
diff --git a/Stars45/Grid.cpp b/Stars45/Grid.cpp
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+/*  Starshatter OpenSource Distribution
+    Copyright (c) 1997-2004, Destroyer Studios LLC.
+    All Rights Reserved.
+
+    Redistribution and use in source and binary forms, with or without
+    modification, are permitted provided that the following conditions are met:
+
+    * Redistributions of source code must retain the above copyright notice,
+      this list of conditions and the following disclaimer.
+    * Redistributions in binary form must reproduce the above copyright notice,
+      this list of conditions and the following disclaimer in the documentation
+      and/or other materials provided with the distribution.
+    * Neither the name "Destroyer Studios" nor the names of its contributors
+      may be used to endorse or promote products derived from this software
+      without specific prior written permission.
+
+    THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+    AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+    IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+    ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+    LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+    CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+    SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+    INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+    CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+    ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+    POSSIBILITY OF SUCH DAMAGE.
+
+    SUBSYSTEM:    Stars.exe
+    FILE:         Grid.cpp
+    AUTHOR:       John DiCamillo
+
+
+    OVERVIEW
+    ========
+    Tactical Grid class
+*/
+
+#include "MemDebug.h"
+#include "Grid.h"
+
+#include "Game.h"
+#include "Video.h"
+#include "Window.h"
+
+static const Color DARK_LINE( 8,  8,  8);
+static const Color LITE_LINE(16, 16, 16);
+
+// +--------------------------------------------------------------------+
+
+Grid::Grid(int asize, int astep)
+: size(asize), step(astep), drawn(0)
+{
+    radius = (float) (size * 1.414);
+}
+
+Grid::~Grid()
+{ }
+
+// +--------------------------------------------------------------------+
+
+int  Grid::CollidesWith(Graphic& o)                { return 0; }
+
+// +--------------------------------------------------------------------+
+
+void Grid::Render(Video* video, DWORD flags)
+{
+    if (!video || hidden) return;
+
+    int c = 0;
+    Color line;
+
+    for (int i = 0; i <= size; i += step) {
+        Point p1( i, 0, -size); p1 += Location();
+        Point p2( i, 0,  size); p2 += Location();
+        Point p3(-i, 0, -size); p3 += Location();
+        Point p4(-i, 0,  size); p4 += Location();
+        
+        if (c) line = DARK_LINE;
+        else   line = LITE_LINE;
+
+        DrawLine(video, p1,p2,line);
+        DrawLine(video, p3,p4,line);
+
+        c++;
+        if (c > 3) c = 0;
+    }
+
+    c = 0;
+
+    for (int i = 0; i <= size; i += step) {
+        Point p1(-size, 0,  i); p1 += Location();
+        Point p2( size, 0,  i); p2 += Location();
+        Point p3(-size, 0, -i); p3 += Location();
+        Point p4( size, 0, -i); p4 += Location();
+        
+        if (c) line = DARK_LINE;
+        else   line = LITE_LINE;
+
+        DrawLine(video, p1,p2,line);
+        DrawLine(video, p3,p4,line);
+
+        c++;
+        if (c > 3) c = 0;
+    }
+}
+
+void Grid::DrawLine(Video* video, Point& p1, Point& p2, Color grid_color)
+{
+    Vec3 v[2];
+
+    v[0] = p1;
+    v[1] = p2;
+
+    video->DrawLines(1, v, grid_color, Video::BLEND_ADDITIVE);
+}