mirror of https://github.com/zeldaret/mm.git
121 lines
4.1 KiB
C
121 lines
4.1 KiB
C
#include "global.h"
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void EffFootmark_Init(GlobalContext* globalCtx) {
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EffFootmark* footmark;
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s32 i;
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for (footmark = globalCtx->footprintInfo, i = 0; i < 100; i++, footmark++) {
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footmark->actor = NULL;
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footmark->location.x = 0;
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footmark->location.y = 0;
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footmark->location.z = 0;
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footmark->flags = 0;
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footmark->id = 0;
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footmark->alpha = 0;
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footmark->alphaChange = 0;
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}
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}
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void EffFootmark_Add(GlobalContext* globalCtx, MtxF* displayMatrix, Actor* actor, u8 id, Vec3f* location, u16 size,
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u8 red, u8 green, u8 blue, u16 alpha, u16 alphaChange, u16 fadeoutDelay) {
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s32 i;
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EffFootmark* footmark;
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EffFootmark* destination = NULL;
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EffFootmark* oldest = NULL;
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s32 isNew = 1;
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for (footmark = globalCtx->footprintInfo, i = 0; i < 100; i++, footmark++) {
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if (((actor == footmark->actor) && (footmark->id == id)) && ((footmark->flags & 1) == 0)) {
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if (fabsf((footmark->location).x - location->x) <= 1) {
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if (fabsf((footmark->location).z - location->z) <= 1) {
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isNew = 0;
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break;
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}
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}
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// This footmark is being re-added at a new location. Let's mark this one to start fading out.
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footmark->flags = 1;
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}
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if (footmark->actor == NULL) {
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destination = footmark;
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} else {
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if (destination == NULL) {
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if ((oldest != NULL && footmark->age > oldest->age) || (oldest == NULL)) {
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oldest = footmark;
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}
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}
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}
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}
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if ((isNew) && ((destination != NULL || (oldest != NULL)))) {
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if (destination == NULL) {
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destination = oldest;
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}
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Matrix_MtxFCopy(&destination->displayMatrix, displayMatrix);
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destination->actor = actor;
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destination->location.x = location->x;
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destination->location.y = location->y;
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destination->location.z = location->z;
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destination->flags = 0;
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destination->id = id;
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destination->red = red;
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destination->green = green;
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destination->blue = blue;
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destination->alpha = alpha;
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destination->alphaChange = alphaChange;
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destination->size = size;
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destination->fadeoutDelay = fadeoutDelay;
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destination->age = 0;
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}
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}
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void EffFootmark_Update(GlobalContext* globalCtx) {
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EffFootmark* footmark;
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s32 i;
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for (footmark = globalCtx->footprintInfo, i = 0; i < 100; i++, footmark++) {
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if (footmark->actor != NULL) {
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if ((footmark->flags & 1) == 1) {
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if (footmark->age < 0xFFFFu) { // TODO replace with MAX_U16 or something
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footmark->age++;
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}
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if (footmark->fadeoutDelay == 0) {
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if (footmark->alpha >= footmark->alphaChange + 0x1000) {
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footmark->alpha -= footmark->alphaChange;
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} else {
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footmark->actor = NULL;
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}
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} else if (footmark->fadeoutDelay > 0) {
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footmark->fadeoutDelay--;
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}
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}
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}
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}
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}
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void EffFootmark_Draw(GlobalContext* globalCtx) {
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EffFootmark* footmark;
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s32 i;
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GraphicsContext* gfxCtx = globalCtx->state.gfxCtx;
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func_8012C448(globalCtx->state.gfxCtx);
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gSPDisplayList(gfxCtx->polyXlu.p++, D_801BC240);
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for (footmark = globalCtx->footprintInfo, i = 0; i < 100; i++, footmark++) {
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if (footmark->actor != NULL) {
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SysMatrix_SetCurrentState(&footmark->displayMatrix);
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Matrix_Scale(footmark->size * 0.00390625f * 0.7f, 1, footmark->size * 0.00390625f, 1);
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gSPMatrix(gfxCtx->polyXlu.p++, Matrix_NewMtx(globalCtx->state.gfxCtx), G_MTX_NOPUSH | G_MTX_LOAD);
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gDPSetPrimColor(gfxCtx->polyXlu.p++, 0, 0, footmark->red, footmark->green, footmark->blue,
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footmark->alpha >> 8);
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gSPDisplayList(gfxCtx->polyXlu.p++, D_801BC288);
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}
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}
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}
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