cp_overlay.h File Reference

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Defines
#define	OVERLAY_NATION (1<<0)
#define	OVERLAY_XVI (1<<1)
#define	OVERLAY_RADAR (1<<2)
Functions
void	CP_DecreaseXVILevelEverywhere (void)
void	CP_ChangeXVILevel (const vec2_t pos, float factor)
void	CP_InitializeXVIOverlay (const byte *data)
	Initialize XVI overlay on geoscape.
void	CP_InitOverlay (void)
void	CP_GetXVIMapDimensions (int width, int height)
int	CP_GetXVILevel (int x, int y)
void	CP_SetXVILevel (int x, int y, int value)
void	CP_InitializeRadarOverlay (qboolean source)
	Radar overlay code description The radar overlay is handled in 2 times : bases radar range and aircraft radar range. Bases radar range needs to be updated only when a radar facilities is built or destroyed. The base radar overlay is stored in r_radarSourcePic. Aircraft radar overlay needs to be updated every time an aircraft moves, because the position of the radar moves. this overlay is created by duplicating r_radarSourcePic, and then adding any aircraft radar coverage. It is stored in r_radarTexture.
void	CP_AddRadarCoverage (const vec2_t pos, float innerRadius, float outerRadius, qboolean source)
	Add a radar coverage (base or aircraft) to radar overlay.
void	CP_UploadRadarCoverage (void)
	Smooth radar coverage.
void	CP_ShutdownOverlay (void)
void	CP_CalcAndUploadDayAndNightTexture (float q)
	Applies alpha values to the night overlay image for 2d geoscape.

Define Documentation

#define OVERLAY_NATION (1<<0)

Definition at line 40 of file cp_overlay.h.

Referenced by MAP_IsNationOverlayActivated(), and MAP_SetOverlay().

#define OVERLAY_RADAR (1<<2)

Definition at line 42 of file cp_overlay.h.

Referenced by MAP_IsRadarOverlayActivated(), and MAP_SetOverlay().

#define OVERLAY_XVI (1<<1)

Definition at line 41 of file cp_overlay.h.

Referenced by MAP_IsXVIOverlayActivated(), and MAP_SetOverlay().

Function Documentation

void CP_AddRadarCoverage	(	const vec2_t	pos,
		float	innerRadius,
		float	outerRadius,
		qboolean	source
	)

Add a radar coverage (base or aircraft) to radar overlay.

Parameters:

`[in]`	pos	Position of the center of radar
`[in]`	innerRadius	Radius of the radar coverage
`[in]`	outerRadius	Radius of the outer radar coverage
`[in]`	source	True if we must update the source of the radar coverage, false if the copy must be updated.

Precondition:: We assume outerRadius is smaller than 180 degrees

< Alpha of the inner radar range

< Alpha of the outer radar range

< current position (in pixel)

< Bounding box of the inner radar zone

< Bounding box of the outer radar zone

Todo:: add EQUAL_EPSILON here?

Definition at line 420 of file cp_overlay.c.

References byte, CP_DrawRadarOverlayRow(), CP_GetCircleDeltaLongitude(), CP_SetMinMaxOverlayRows(), f, RADAR_HEIGHT, and torad.

Referenced by RADAR_DrawCoverage(), and RADAR_UpdateStaticRadarCoverage().

void CP_CalcAndUploadDayAndNightTexture ( float q )

Applies alpha values to the night overlay image for 2d geoscape.

Parameters:

[in] q The angle the sun is standing against the equator on earth

Definition at line 66 of file cp_overlay.c.

References byte, COS_ALPHA, DAN_HEIGHT, DAN_WIDTH, DAWN, HIGH_LAT, LOW_LAT, pos, r_dayandnightAlpha, R_UploadAlpha(), and SIN_ALPHA.

Referenced by MAP_DrawMap().

void CP_ChangeXVILevel	(	const vec2_t	pos,
		float	factor
	)

Definition at line 304 of file cp_overlay.c.

References CP_IncreaseXVILevel(), f, XVI_HEIGHT, and XVI_WIDTH.

Referenced by CP_SpreadXVIAtPos().

void CP_DecreaseXVILevelEverywhere ( void )

See also:: R_IncreaseXVILevel

< current position (in pixel)

Definition at line 289 of file cp_overlay.c.

References CP_GetXVILevel(), CP_SetXVILevel(), R_UploadAlpha(), r_xviAlpha, XVI_HEIGHT, and XVI_WIDTH.

Referenced by CP_ReduceXVIEverywhere().

int CP_GetXVILevel	(	int	x,
		int	y
	)

Definition at line 122 of file cp_overlay.c.

References INITIAL_ALPHA_VALUE, r_xviAlpha, XVI_HEIGHT, and XVI_WIDTH.

Referenced by CP_DecreaseXVILevelEverywhere(), CP_DrawXVIOverlayPixel(), CP_IncreaseXVILevel(), CP_UpdateNationXVIInfection(), and XVI_SaveXML().

void CP_GetXVIMapDimensions	(	int *	width,
		int *	height
	)

Definition at line 103 of file cp_overlay.c.

References XVI_HEIGHT, and XVI_WIDTH.

Referenced by CP_UpdateNationXVIInfection(), and XVI_SaveXML().

void CP_InitializeRadarOverlay ( qboolean source )

Radar overlay code description The radar overlay is handled in 2 times : bases radar range and aircraft radar range. Bases radar range needs to be updated only when a radar facilities is built or destroyed. The base radar overlay is stored in r_radarSourcePic. Aircraft radar overlay needs to be updated every time an aircraft moves, because the position of the radar moves. this overlay is created by duplicating r_radarSourcePic, and then adding any aircraft radar coverage. It is stored in r_radarTexture.

See also:: RADAR_UpdateWholeRadarOverlay Initialize radar overlay on geoscape.

Parameters:

[in] source Initialize the source texture if qtrue: if you are updating base radar overlay. false if you are updating aircraft radar overlay (base radar overlay will be copied to aircraft radar overlay)

Definition at line 345 of file cp_overlay.c.

References INITIAL_ALPHA_VALUE, r_radarPic, and r_radarSourcePic.

Referenced by RADAR_UpdateStaticRadarCoverage(), and RADAR_UpdateWholeRadarOverlay().

void CP_InitializeXVIOverlay ( const byte * data )

Initialize XVI overlay on geoscape.

Parameters:

[in] data Pointer to the data containing values to store in XVI map. Can be NULL for new games. This is only the alpha channel of the xvi map