124 lines
3.3 KiB
Plaintext
124 lines
3.3 KiB
Plaintext
/*
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* Copyright (c) 2016-2022 Vera Visions LLC.
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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/*enum
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{
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DRAWFLAG_NORMAL,
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DRAWFLAG_ADDITIVE,
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DRAWFLAG_MODULATE, // FTE doesn't support this
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DRAWFLAG_2XMODULATE // FTE doesn't support this
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};*/
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enumflags
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{
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EVF_FADEDROM,
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EVF_MODULATE,
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EVF_ONLYUSER
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};
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const string mat_fade_modulate =
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"{\n" \
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"{\n" \
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"map $whiteimage\n" \
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"rgbGen vertex\n" \
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"blendFunc GL_DST_COLOR GL_ONE_MINUS_SRC_ALPHA\n" \
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"alphaGen vertex\n" \
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"}\n" \
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"}\n";
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/* needs to be called on every vid_reload */
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void
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Fade_Reload(void)
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{
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shaderforname("fade_modulate", mat_fade_modulate);
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}
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/* run every frame to update the actively running fade effects */
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void
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Fade_Update (int x, int y, int w, int h)
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{
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if (pSeat->m_iFadeActive == FALSE) {
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return;
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}
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pSeat->m_flFadeAlpha = 1.0f;
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if (pSeat->m_flFadeStyle & EVF_FADEDROM) {
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if (pSeat->m_flFadeTime > pSeat->m_flFadeDuration) {
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pSeat->m_flFadeAlpha -= (pSeat->m_flFadeTime - pSeat->m_flFadeDuration) * (1.0 / pSeat->m_flFadeHold);
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}
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} else {
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if (pSeat->m_flFadeTime < pSeat->m_flFadeDuration) {
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pSeat->m_flFadeAlpha = pSeat->m_flFadeTime * (1.0 / pSeat->m_flFadeDuration);
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}
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}
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if (pSeat->m_flFadeAlpha > 1.0f) {
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pSeat->m_flFadeAlpha = 1.0f;
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} else if (pSeat->m_flFadeAlpha < 0.0f) {
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pSeat->m_flFadeAlpha = 0.0f;
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}
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/* time's up */
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if (pSeat->m_flFadeTime >= (pSeat->m_flFadeDuration + pSeat->m_flFadeHold)) {
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pSeat->m_iFadeActive = FALSE;
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return;
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}
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if (pSeat->m_flFadeStyle & EVF_MODULATE) {
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drawpic([x, y], "fade_modulate", [w, h], pSeat->m_vecFadeColor, pSeat->m_flFadeAlpha * pSeat->m_flFadeMaxAlpha, 0);
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} else {
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drawfill([x, y], [w, h], pSeat->m_vecFadeColor, pSeat->m_flFadeAlpha * pSeat->m_flFadeMaxAlpha, 0);
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}
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pSeat->m_flFadeTime += clframetime;
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}
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/* called by a worldspawn key,
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will cause the game to fade-in over the course of 4 seconds */
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void
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Fade_StartDark(void)
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{
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pSeat->m_vecFadeColor = [0.0, 0.0, 0.0];
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pSeat->m_flFadeMaxAlpha = 1.0;
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pSeat->m_flFadeDuration = 5.0;
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pSeat->m_flFadeHold = 4.0f;
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pSeat->m_flFadeStyle = EVF_FADEDROM;
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pSeat->m_flFadeTime = 0.0f;
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pSeat->m_flFadeAlpha = 1.0f;
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pSeat->m_iFadeActive = TRUE;
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}
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void
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Fade_Parse(void)
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{
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pSeat->m_vecFadeColor[0] = readfloat();
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pSeat->m_vecFadeColor[1] = readfloat();
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pSeat->m_vecFadeColor[2] = readfloat();
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pSeat->m_flFadeMaxAlpha = readfloat();
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pSeat->m_flFadeDuration = readfloat();
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pSeat->m_flFadeHold = readfloat();
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pSeat->m_flFadeStyle = readbyte();
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pSeat->m_flFadeTime = 0.0f;
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if (pSeat->m_flFadeStyle & EVF_FADEDROM) {
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pSeat->m_flFadeAlpha = 1.0f;
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} else {
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pSeat->m_flFadeAlpha = 0.0f;
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}
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pSeat->m_iFadeActive = TRUE;
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}
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