Let’s make speed-o-meters and post 'em yay! Here’s what I have right now:
disclaim0r: use at your own risk - the code is sucky, when you set SPEEDGRAPH_STEPS too high it crashes etc… but I hey, I figure it’s better than nothing.
#define SPEEDGRAPH_XSIZE 400
#define SPEEDGRAPH_YSIZE 180
#define SPEEDGRAPH_XOFFSET 120
#define SPEEDGRAPH_YOFFSET 120
#define SPEEDGRAPH_STEPS 1200
#define SPEEDGRAPH_MAXSPEED1 1000.0f
#define SPEEDGRAPH_MAXSPEED2 750.0f
#define SPEEDGRAPH_MAXSPEED3 500.0f
#define SPEEDGRAPH_MAXSPEED4 250.0f
#define SPEEDGRAPH_THRESHOLD 20.0f
void CG2005_DrawSpeedOGraph(void) {
static float speed[SPEEDGRAPH_STEPS];
static int currentStep = 0;
float fade, blarr;
const char* str;
int i,j;
float max = 0;
vec4_t color = { 1.f, 0.f, 0.f, 0.0f };
speed[currentStep]=cg.xyspeed;
for (i=0; i<SPEEDGRAPH_STEPS; i++) {
if (speed[i] > max)
max = speed[i];
}
if (max == 0)
max = 0.0001f;
for (i=currentStep; i>=0; i--) {
color[3] = ((i+(SPEEDGRAPH_STEPS-currentStep))/(float)SPEEDGRAPH_STEPS)/4.0f; // wtf?
// white
if (speed[i] >= SPEEDGRAPH_MAXSPEED1) {
color[0] = 1.0f;
color[1] = 1.0f;
color[2] = 1.0f;
// yellow -> white
} else if (speed[i] >= SPEEDGRAPH_MAXSPEED2) {
color[0] = 1.0f;
color[1] = 1.0f;
color[2] = (speed[i]-SPEEDGRAPH_MAXSPEED2)/(SPEEDGRAPH_MAXSPEED1-SPEEDGRAPH_MAXSPEED2);
// green -> yellow
} else if (speed[i] >= SPEEDGRAPH_MAXSPEED3) {
color[0] = (speed[i]-SPEEDGRAPH_MAXSPEED3)/(SPEEDGRAPH_MAXSPEED2-SPEEDGRAPH_MAXSPEED3);
color[1] = 1.0f;
color[2] = 0.0f;
// red -> green
} else if (speed[i] >= SPEEDGRAPH_MAXSPEED4) {
color[0] = 1.0f-(speed[i]-SPEEDGRAPH_MAXSPEED4)/(SPEEDGRAPH_MAXSPEED3-SPEEDGRAPH_MAXSPEED4);
color[1] = (speed[i]-SPEEDGRAPH_MAXSPEED4)/(SPEEDGRAPH_MAXSPEED3-SPEEDGRAPH_MAXSPEED4);
color[2] = 0.0f;
// black -> red
} else if (speed[i] > 0) {
color[0] = (speed[i]-SPEEDGRAPH_MAXSPEED4)/(SPEEDGRAPH_MAXSPEED3-SPEEDGRAPH_MAXSPEED4);
color[1] = 0.0f;
color[2] = 0.0f;
// black
} else {
color[0] = 0.0f;
color[1] = 0.0f;
color[2] = 0.0f;
}
blarr = (speed[i]/max);
CG_FillRect(
SPEEDGRAPH_XOFFSET + (i+(SPEEDGRAPH_STEPS-currentStep))*((float)SPEEDGRAPH_XSIZE/SPEEDGRAPH_STEPS),
480 - SPEEDGRAPH_YOFFSET - blarr*SPEEDGRAPH_YSIZE,
(SPEEDGRAPH_STEPS/SPEEDGRAPH_XSIZE)+1,
blarr*SPEEDGRAPH_YSIZE,
color);
}
if (currentStep != SPEEDGRAPH_STEPS) {
for (i=SPEEDGRAPH_STEPS; i>currentStep; i--) {
color[3] = ((i-currentStep)/(float)SPEEDGRAPH_STEPS)/4.0f; // wtf?
// white
// 1000+
if (speed[i] >= SPEEDGRAPH_MAXSPEED1) {
color[0] = 1.0f;
color[1] = 1.0f;
color[2] = 1.0f;
// yellow -> white
// 750-1000
} else if (speed[i] >= SPEEDGRAPH_MAXSPEED2) {
color[0] = 1.0f;
color[1] = 1.0f;
color[2] = (speed[i]-SPEEDGRAPH_MAXSPEED2)/(SPEEDGRAPH_MAXSPEED1-SPEEDGRAPH_MAXSPEED2);
// green -> yellow
} else if (speed[i] >= SPEEDGRAPH_MAXSPEED3) {
color[0] = (speed[i]-SPEEDGRAPH_MAXSPEED3)/(SPEEDGRAPH_MAXSPEED2-SPEEDGRAPH_MAXSPEED3);
color[1] = 1.0f;
color[2] = 0.0f;
// red -> green
} else if (speed[i] >= SPEEDGRAPH_MAXSPEED4) {
color[0] = 1.0f-(speed[i]-SPEEDGRAPH_MAXSPEED4)/(SPEEDGRAPH_MAXSPEED3-SPEEDGRAPH_MAXSPEED4);
color[1] = (speed[i]-SPEEDGRAPH_MAXSPEED4)/(SPEEDGRAPH_MAXSPEED3-SPEEDGRAPH_MAXSPEED4);
color[2] = 0.0f;
// black -> red
} else if (speed[i] > 0) {
color[0] = (speed[i]-SPEEDGRAPH_MAXSPEED4)/(SPEEDGRAPH_MAXSPEED3-SPEEDGRAPH_MAXSPEED4);
color[1] = 0.0f;
color[2] = 0.0f;
// black
} else {
color[0] = 0.0f;
color[1] = 0.0f;
color[2] = 0.0f;
}
blarr = (speed[i]/max);
CG_FillRect(
SPEEDGRAPH_XOFFSET + (i-currentStep)*((float)SPEEDGRAPH_XSIZE/SPEEDGRAPH_STEPS),
480 - SPEEDGRAPH_YOFFSET - blarr*SPEEDGRAPH_YSIZE,
(SPEEDGRAPH_STEPS/SPEEDGRAPH_XSIZE)+1,
blarr*SPEEDGRAPH_YSIZE,
color);
}
}
if (cg.xyspeed > SPEEDGRAPH_THRESHOLD)
if (currentStep >= SPEEDGRAPH_STEPS)
currentStep = 0;
else
currentStep++;
}
This one looks bad unless you change CG_FilledBar() to use gradients if an endcolor is supplied 
#define CG_SPEEDOMETER__PEAK_FADE_TIME 250
void CG2005_DrawSpeedOMeter ( void ) {
float frac,peakFrac;
vec4_t color = { 0.f, 0.f, 0.f, 0.0f };
vec4_t color2 = { 0.f, 0.f, 0.f, 0.0f };
vec4_t bgcolor = { 0.f, 0.f, 0.f, 0.4f };
int flags = BAR_BG|BAR_BGSPACING_X0Y0;
char* str;
float w, width=0.3f, height=0.3f;
float width2=0.2f, height2=0.2f;
float speed;
static float peak=0.0f;
static int peakTime=0;
// Crash? :/
// speed = VectorLength(cg.snap->ps.velocity);
speed = cg.xyspeed;
if (peakTime > CG_SPEEDOMETER__PEAK_FADE_TIME) {
peak -= 16.0f;
if (peak < 0.0f)
peak = 0.0f;
} else
peakTime++;
if (speed>peak) {
peak = speed;
peakTime=0;
}
// red -> yellow
if (speed < 1000.f) {
frac = (speed / 1000.f);
peakFrac = (peak / 1000.f);
color[0] = 1.0f-frac;
color[1] = frac;
color[2] = 0.0f;
// yellow -> green
} else if (speed < 3000.f) {
frac = (speed / 3000.f);
peakFrac = (peak / 3000.f);
color[0] = 1.0f-frac;
color[1] = 1.0f;
color[2] = frac;
// green -> white
} else {
frac = (speed / 10000.f);
peakFrac = (peak / 10000.f);
color[0] = frac;
color[1] = 1.0f;
color[2] = frac;
}
if (frac > 1.0f) frac = 1.0f; else if (frac < 0.0f) frac = 0.0f;
if (peakFrac > 1.0f) peakFrac = 1.0f; else if (peakFrac < 0.0f) peakFrac = 0.0f;
color2[0] = color[0]/4;
color2[1] = color[1]/4;
color2[2] = color[2]/4;
color[3] = 0.8f*(1.0f-peakTime/(float)CG_SPEEDOMETER__PEAK_FADE_TIME);
color2[3] = 0.15f*(1.0f-peakTime/(float)CG_SPEEDOMETER__PEAK_FADE_TIME);
CG_FilledBar(128, 480 - 24, 640 - 256, 10, color, color2, bgcolor, peakFrac, flags);
CG_FilledBar(128, 480 - 14, 640 - 256, 14, color2, color, bgcolor, peakFrac, flags);
color[3] = 0.950f;
color2[3] = 0.2f;
CG_FilledBar(128, 480 - 24, 640 - 256, 10, color, color2, bgcolor, frac, flags);
CG_FilledBar(128, 480 - 14, 640 - 256, 14, color2, color, bgcolor, frac, flags);
str = va("%.3f", speed);
w = CG_Text_Width_Ext( str, width, 0, &cgs.media.limboFont1 );
CG_Text_Paint_Ext(640-126-w, 480-2, width, height, color, str, 0, 0, ITEM_TEXTSTYLE_SHADOWED, &cgs.media.limboFont1);
if (peakTime < CG_SPEEDOMETER__PEAK_FADE_TIME) {
str = va("%.3f", peak);
color[3] = 1.0f-peakTime/(float)CG_SPEEDOMETER__PEAK_FADE_TIME;
w = CG_Text_Width_Ext( str, width2, 0, &cgs.media.limboFont1 );
CG_Text_Paint_Ext(640-126-w, 480-16, width2, height2, color, str, 0, 0, ITEM_TEXTSTYLE_SHADOWED, &cgs.media.limboFont1);
}
}
Work atm, cant test… Im guessing thisll work over demos too? :o Was thinking of using it my movie for some of the trickjump bits to show some things… :]