From ad677189cbb01da171d67346fa445af0f55ed106 Mon Sep 17 00:00:00 2001
From: Simon Robertshaw <simon@hardwired.org.uk>
Date: Tue, 12 Jun 2012 16:20:35 +0100
Subject: [PATCH] TPT: Use an array instead of ctype to cache tron colour
 6101c04ff9

---
 src/simulation/elements/TRON.cpp | 41 ++++++++++++++++----------------
 1 file changed, 20 insertions(+), 21 deletions(-)

diff --git a/src/simulation/elements/TRON.cpp b/src/simulation/elements/TRON.cpp
index a449bc604..cb5f865fa 100644
--- a/src/simulation/elements/TRON.cpp
+++ b/src/simulation/elements/TRON.cpp
@@ -44,6 +44,8 @@ Element_TRON::Element_TRON()
     
     Update = &Element_TRON::update;
     Graphics = &Element_TRON::graphics;
+
+    Element_TRON::init_graphics();
 }
 
 #define TRON_HEAD 1
@@ -53,19 +55,24 @@ Element_TRON::Element_TRON()
 #define TRON_DEATH 16 //Crashed, now dying
 int tron_rx[4] = {-1, 0, 1, 0};
 int tron_ry[4] = { 0,-1, 0, 1};
+unsigned int tron_colours[32];
+
+//#TPT-Directive ElementHeader Element_TRON static void init_graphics()
+void Element_TRON::init_graphics()
+{
+	int i;
+	int r, g, b;
+	for (i=0; i<32; i++)
+	{
+		HSV_to_RGB(i<<4,255,255,&r,&g,&b);
+		tron_colours[i] = r<<16 | g<<8 | b;
+	}
+}
 
 //#TPT-Directive ElementHeader Element_TRON static int update(UPDATE_FUNC_ARGS)
 int Element_TRON::update(UPDATE_FUNC_ARGS)
  {
 	int r, rx, ry, np;
-	if(!parts[i].ctype)
-	{
-		int r, g, b;
-		int hue = (parts[i].tmp&0xF800)>>7;
-		HSV_to_RGB(hue,255,255,&r,&g,&b);
-		parts[i].ctype = r<<16 | g<<8 | b;
-		//Use photon-like wavelength?
-	}
 	if (parts[i].tmp&TRON_WAIT)
 	{
 		parts[i].tmp &= ~TRON_WAIT;
@@ -134,20 +141,12 @@ int Element_TRON::update(UPDATE_FUNC_ARGS)
 //#TPT-Directive ElementHeader Element_TRON static int graphics(GRAPHICS_FUNC_ARGS)
 int Element_TRON::graphics(GRAPHICS_FUNC_ARGS)
  {
+	unsigned int col = tron_colours[(cpart->tmp&0xF800)>>11];
 	if(cpart->tmp & TRON_HEAD)
 		*pixel_mode |= PMODE_GLOW;
-	if(cpart->ctype)
-	{
-		*colr = (cpart->ctype & 0xFF0000)>>16;
-		*colg = (cpart->ctype & 0x00FF00)>>8;
-		*colb = (cpart->ctype & 0x0000FF);
-	}
-	else
-	{
-		*colr = 255;
-		*colg = 255;
-		*colb = 255;
-	}
+	*colr = (col & 0xFF0000)>>16;
+	*colg = (col & 0x00FF00)>>8;
+	*colb = (col & 0x0000FF);
 	if(cpart->tmp & TRON_DEATH)
 	{
 		*pixel_mode |= FIRE_ADD | PMODE_FLARE;
@@ -233,4 +232,4 @@ int Element_TRON::trymovetron(Simulation * sim, int x, int y, int dir, int i, in
 	return count;
 }
 
-Element_TRON::~Element_TRON() {}
\ No newline at end of file
+Element_TRON::~Element_TRON() {}