sm64pc/src/game/level_geo.c

78 lines
3.2 KiB
C

#include <ultra64.h>
#include "sm64.h"
#include "rendering_graph_node.h"
#include "mario_misc.h"
#include "skybox.h"
#include "engine/math_util.h"
#include "camera.h"
#include "envfx_snow.h"
#include "level_geo.h"
/**
* Geo function that generates a displaylist for environment effects such as
* snow or jetstream bubbles.
*/
Gfx *geo_enfvx_main(s32 callContext, struct GraphNode *node, f32 c[4][4]) {
Vec3s marioPos;
Vec3s camFrom;
Vec3s camTo;
void *particleList;
Gfx *gfx = NULL;
if (callContext == GEO_CONTEXT_RENDER && gCurGraphNodeCamera != NULL) {
struct GraphNodeGenerated *execNode = (struct GraphNodeGenerated *) node;
u32 *params = &execNode->parameter; // accessed a s32 as 2 u16s by pointing to the variable and
// casting to a local struct as necessary.
if (GET_HIGH_U16_OF_32(*params) != gAreaUpdateCounter) {
UNUSED struct Camera *sp2C = gCurGraphNodeCamera->config.camera;
s32 snowMode = GET_LOW_U16_OF_32(*params);
vec3f_to_vec3s(camTo, gCurGraphNodeCamera->focus);
vec3f_to_vec3s(camFrom, gCurGraphNodeCamera->pos);
vec3f_to_vec3s(marioPos, gPlayerCameraState->pos);
particleList = envfx_update_particles(snowMode, marioPos, camTo, camFrom);
if (particleList != NULL) {
Mtx *mtx = alloc_display_list(sizeof(*mtx));
gfx = alloc_display_list(2 * sizeof(*gfx));
mtxf_to_mtx(mtx, c);
gSPMatrix(&gfx[0], VIRTUAL_TO_PHYSICAL(mtx), G_MTX_MODELVIEW | G_MTX_LOAD | G_MTX_NOPUSH);
gSPBranchList(&gfx[1], VIRTUAL_TO_PHYSICAL(particleList));
execNode->fnNode.node.flags = (execNode->fnNode.node.flags & 0xFF) | 0x400;
}
SET_HIGH_U16_OF_32(*params, gAreaUpdateCounter);
}
} else if (callContext == GEO_CONTEXT_AREA_INIT) {
// Give these arguments some dummy values. Not used in ENVFX_MODE_NONE
vec3s_copy(camTo, gVec3sZero);
vec3s_copy(camFrom, gVec3sZero);
vec3s_copy(marioPos, gVec3sZero);
envfx_update_particles(ENVFX_MODE_NONE, marioPos, camTo, camFrom);
}
return gfx;
}
/**
* Geo function that generates a displaylist for the skybox. Can be assigned
* as the function of a GraphNodeBackground.
*/
Gfx *geo_skybox_main(s32 callContext, struct GraphNode *node, UNUSED Mat4 *mtx) {
Gfx *gfx = NULL;
struct GraphNodeBackground *backgroundNode = (struct GraphNodeBackground *) node;
if (callContext == GEO_CONTEXT_AREA_LOAD) {
backgroundNode->unused = 0;
} else if (callContext == GEO_CONTEXT_RENDER) {
struct GraphNodeCamera *camNode = (struct GraphNodeCamera *) gCurGraphNodeRoot->views[0];
struct GraphNodePerspective *camFrustum =
(struct GraphNodePerspective *) camNode->fnNode.node.parent;
gfx = create_skybox_facing_camera(0, backgroundNode->background, camFrustum->fov, gLakituState.pos[0],
gLakituState.pos[1], gLakituState.pos[2], gLakituState.focus[0],
gLakituState.focus[1], gLakituState.focus[2]);
}
return gfx;
}