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-rw-r--r--src/Frustum.cpp71
1 files changed, 35 insertions, 36 deletions
diff --git a/src/Frustum.cpp b/src/Frustum.cpp
index 0e617b8..79f0aa6 100644
--- a/src/Frustum.cpp
+++ b/src/Frustum.cpp
@@ -1,5 +1,5 @@
 #include <cmath>
-#ifdef OS9 
+#ifdef OS9
 #include "gl.h"
 #else
 #include <GL/gl.h>
@@ -13,61 +13,61 @@ void FRUSTUM::
 	float mvmatrix[16];
 	float clip[16];
 	float t;
-	
+
 	glGetFloatv(GL_PROJECTION_MATRIX, projmatrix);
 	glGetFloatv(GL_MODELVIEW_MATRIX, mvmatrix);
-	
+
 	// Combine the matrices
 	clip[0]	= mvmatrix[0] * projmatrix[0] + mvmatrix[1] * projmatrix[4] + mvmatrix[2] * projmatrix[8] + mvmatrix[3] * projmatrix[12];
 	clip[1] = mvmatrix[0] * projmatrix[1] + mvmatrix[1] * projmatrix[5] + mvmatrix[2] * projmatrix[9] + mvmatrix[3] * projmatrix[13];
 	clip[2] = mvmatrix[0] * projmatrix[2] + mvmatrix[1] * projmatrix[6] + mvmatrix[2] * projmatrix[10] + mvmatrix[3] * projmatrix[14];
 	clip[3] = mvmatrix[0] * projmatrix[3] + mvmatrix[1] * projmatrix[7] + mvmatrix[2] * projmatrix[11] + mvmatrix[3] * projmatrix[15];
-	
+
 	clip[4] = mvmatrix[4] * projmatrix[0] + mvmatrix[5] * projmatrix[4] + mvmatrix[6] * projmatrix[8] + mvmatrix[7] * projmatrix[12];
 	clip[5] = mvmatrix[4] * projmatrix[1] + mvmatrix[5] * projmatrix[5] + mvmatrix[6] * projmatrix[9] + mvmatrix[7] * projmatrix[13];
 	clip[6] = mvmatrix[4] * projmatrix[2] + mvmatrix[5] * projmatrix[6] + mvmatrix[6] * projmatrix[10] + mvmatrix[7] * projmatrix[14];
 	clip[7] = mvmatrix[4] * projmatrix[3] + mvmatrix[5] * projmatrix[7] + mvmatrix[6] * projmatrix[11] + mvmatrix[7] * projmatrix[15];
-	
+
 	clip[8] = mvmatrix[8] * projmatrix[0] + mvmatrix[9] * projmatrix[4] + mvmatrix[10] * projmatrix[8] + mvmatrix[11] * projmatrix[12];
 	clip[9] = mvmatrix[8] * projmatrix[1] + mvmatrix[9] * projmatrix[5] + mvmatrix[10] * projmatrix[9] + mvmatrix[11] * projmatrix[13];
 	clip[10] = mvmatrix[8] * projmatrix[2] + mvmatrix[9] * projmatrix[6] + mvmatrix[10] * projmatrix[10] + mvmatrix[11] * projmatrix[14];
 	clip[11] = mvmatrix[8] * projmatrix[3] + mvmatrix[9] * projmatrix[7] + mvmatrix[10] * projmatrix[11] + mvmatrix[11] * projmatrix[15];
-	
+
 	clip[12] = mvmatrix[12] * projmatrix[0] + mvmatrix[13] * projmatrix[4] + mvmatrix[14] * projmatrix[8] + mvmatrix[15] * projmatrix[12];
 	clip[13] = mvmatrix[12] * projmatrix[1] + mvmatrix[13] * projmatrix[5] + mvmatrix[14] * projmatrix[9] + mvmatrix[15] * projmatrix[13];
 	clip[14] = mvmatrix[12] * projmatrix[2] + mvmatrix[13] * projmatrix[6] + mvmatrix[14] * projmatrix[10] + mvmatrix[15] * projmatrix[14];
 	clip[15] = mvmatrix[12] * projmatrix[3] + mvmatrix[13] * projmatrix[7] + mvmatrix[14] * projmatrix[11] + mvmatrix[15] * projmatrix[15];
-	
+
 	// Right plane
 	frustum[0][0] = clip[3] - clip[0];
 	frustum[0][1] = clip[7] - clip[4];
 	frustum[0][2] = clip[11] - clip[8];
 	frustum[0][3] = clip[15] - clip[12];
-	
+
 	// Left plane
 	frustum[1][0] = clip[3] + clip[0];
 	frustum[1][1] = clip[7] + clip[4];
 	frustum[1][2] = clip[11] + clip[8];
 	frustum[1][3] = clip[15] + clip[12];
-	
+
 	// Bottom plane
 	frustum[2][0] = clip[3] + clip[1];
 	frustum[2][1] = clip[7] + clip[5];
 	frustum[2][2] = clip[11] + clip[9];
 	frustum[2][3] = clip[15] + clip[13];
-	
+
 	// Top plane
 	frustum[3][0] = clip[3] - clip[1];
 	frustum[3][1] = clip[7] - clip[5];
 	frustum[3][2] = clip[11] - clip[9];
 	frustum[3][3] = clip[15] - clip[13];
-	
+
 	// Far plane
 	frustum[4][0] = clip[3] - clip[2];
 	frustum[4][1] = clip[7] - clip[6];
 	frustum[4][2] = clip[11] - clip[10];
 	frustum[4][3] = clip[15] - clip[14];
-	
+
 	// Near plane
 	frustum[5][0] = clip[3] + clip[2];
 	frustum[5][1] = clip[7] + clip[6];
@@ -75,14 +75,14 @@ void FRUSTUM::
 	frustum[5][3] = clip[15] + clip[14];
 
 	/* normalize the right plane */
-	t = sqrt(frustum[0][0]*frustum[0][0] 
-		+ frustum[0][1]*frustum[0][1] 
+	t = sqrt(frustum[0][0]*frustum[0][0]
+		+ frustum[0][1]*frustum[0][1]
 		+ frustum[0][2]*frustum[0][2]);
 	frustum[0][0] /= t;
 	frustum[0][1] /= t;
 	frustum[0][2] /= t;
 	frustum[0][3] /= t;
-		
+
 	/* calculate left plane */
 	frustum[1][0] = clip[ 3] + clip[ 0];
 	frustum[1][1] = clip[ 7] + clip[ 4];
@@ -90,14 +90,14 @@ void FRUSTUM::
 	frustum[1][3] = clip[15] + clip[12];
 
 	/* normalize the left plane */
-	t = sqrt(frustum[1][0]*frustum[1][0] 
-		+ frustum[1][1]*frustum[1][1] 
+	t = sqrt(frustum[1][0]*frustum[1][0]
+		+ frustum[1][1]*frustum[1][1]
 		+ frustum[1][2]*frustum[1][2]);
 	frustum[1][0] /= t;
 	frustum[1][1] /= t;
 	frustum[1][2] /= t;
 	frustum[1][3] /= t;
-	
+
 	/* calculate the bottom plane */
 	frustum[2][0] = clip[ 3] + clip[ 1];
 	frustum[2][1] = clip[ 7] + clip[ 5];
@@ -105,65 +105,64 @@ void FRUSTUM::
 	frustum[2][3] = clip[15] + clip[13];
 
 	/* normalize the bottom plane */
-	t = sqrt(frustum[2][0]*frustum[2][0] 
-		+ frustum[2][1]*frustum[2][1] 
+	t = sqrt(frustum[2][0]*frustum[2][0]
+		+ frustum[2][1]*frustum[2][1]
 		+ frustum[2][2]*frustum[2][2]);
 	frustum[2][0] /= t;
 	frustum[2][1] /= t;
 	frustum[2][2] /= t;
 	frustum[2][3] /= t;
-	
+
 	/* calculate the top plane */
 	frustum[3][0] = clip[ 3] - clip[ 1];
 	frustum[3][1] = clip[ 7] - clip[ 5];
 	frustum[3][2] = clip[11] - clip[ 9];
 	frustum[3][3] = clip[15] - clip[13];
-	
+
 	/* normalize the top plane */
-	t = sqrt(frustum[3][0]*frustum[3][0] 
-		+ frustum[3][1]*frustum[3][1] 
+	t = sqrt(frustum[3][0]*frustum[3][0]
+		+ frustum[3][1]*frustum[3][1]
 		+ frustum[3][2]*frustum[3][2]);
 	frustum[3][0] /= t;
 	frustum[3][1] /= t;
 	frustum[3][2] /= t;
 	frustum[3][3] /= t;
-	
+
 	/* calculate the far plane */
 	frustum[4][0] = clip[ 3] - clip[ 2];
 	frustum[4][1] = clip[ 7] - clip[ 6];
 	frustum[4][2] = clip[11] - clip[10];
 	frustum[4][3] = clip[15] - clip[14];
-	
+
 	/* normalize the far plane */
-	t = sqrt(frustum[4][0]*frustum[4][0] 
-		+ frustum[4][1]*frustum[4][1] 
+	t = sqrt(frustum[4][0]*frustum[4][0]
+		+ frustum[4][1]*frustum[4][1]
 		+ frustum[4][2]*frustum[4][2]);
 	frustum[4][0] /= t;
 	frustum[4][1] /= t;
 	frustum[4][2] /= t;
 	frustum[4][3] /= t;
-	
+
 	/* calculate the near plane */
 	frustum[5][0] = clip[ 3] + clip[ 2];
 	frustum[5][1] = clip[ 7] + clip[ 6];
 	frustum[5][2] = clip[11] + clip[10];
 	frustum[5][3] = clip[15] + clip[14];
-	
+
 	/* normalize the near plane */
-	t = sqrt(frustum[5][0]*frustum[5][0] 
-		+ frustum[5][1]*frustum[5][1] 
+	t = sqrt(frustum[5][0]*frustum[5][0]
+		+ frustum[5][1]*frustum[5][1]
 		+ frustum[5][2]*frustum[5][2]);
 	frustum[5][0] /= t;
 	frustum[5][1] /= t;
 	frustum[5][2] /= t;
 	frustum[5][3] /= t;
-
 }
 
 int FRUSTUM::
 	CubeInFrustum(float x, float y, float z, float size) {
 	int c, c2;
-	
+
 	c2 = 0;
 	for(int i=0; i<6; i++) {
 		c=0;
@@ -198,7 +197,7 @@ int FRUSTUM::
 	CubeInFrustum(float x, float y, float z, float size, float height) {
 	int c, c2;
 
-	c2 = 0;	
+	c2 = 0;
 	for(int i=0; i<6; i++) {
 		c=0;
 		if(frustum[i][0] * (x-size) + frustum[i][1] * (y-height) + frustum[i][2] * (z-size) + frustum[i][3] > 0)
@@ -232,7 +231,7 @@ int FRUSTUM::
 	SphereInFrustum(float x, float y, float z, float radius) {
 	int  c2;
 
-	c2 = 0;	
+	c2 = 0;
 	for(int i=0; i<6; i++) {
 		if(frustum[i][0] * x + frustum[i][1] * y + frustum[i][2] * z + frustum[i][3] > -1*radius)
 			c2++;
generated by cgit-pink 1.4.1 (git 2.36.1) at 2025-08-30 22:17:33 +0000