86 lines
2.5 KiB
C
86 lines
2.5 KiB
C
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#include <ultra64.h>
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#include "sm64.h"
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#include "game/level_update.h"
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#include "math_util.h"
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#include "game/memory.h"
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#include "graph_node.h"
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#include "game/rendering_graph_node.h"
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#include "game/area.h"
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#include "geo_layout.h"
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#if IS_64_BIT
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static s16 next_s16_in_geo_script(s16 **src) {
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s16 ret;
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if (((uintptr_t)(*src) & 7) == 4) {
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*src += 2; // skip 32 bits
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}
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ret = *(*src)++;
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if (((uintptr_t)(*src) & 7) == 4) {
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*src += 2; // skip 32 bits
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}
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return ret;
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}
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#else
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#define next_s16_in_geo_script(src) (*(*src)++)
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#endif
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/**
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* Takes a pointer to three shorts (supplied by a geo layout script) and
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* copies it to the destination float vector.
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*/
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s16 *read_vec3s_to_vec3f(Vec3f dst, s16 *src) {
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dst[0] = next_s16_in_geo_script(&src);
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dst[1] = next_s16_in_geo_script(&src);
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dst[2] = next_s16_in_geo_script(&src);
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return src;
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}
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/**
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* Takes a pointer to three shorts (supplied by a geo layout script) and
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* copies it to the destination vector. It's essentially a memcpy but consistent
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* with the other two 'geo-script vector to internal vector' functions.
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*/
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s16 *read_vec3s(Vec3s dst, s16 *src) {
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dst[0] = next_s16_in_geo_script(&src);
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dst[1] = next_s16_in_geo_script(&src);
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dst[2] = next_s16_in_geo_script(&src);
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return src;
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}
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/**
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* Takes a pointer to three angles in degrees (supplied by a geo layout script)
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* and converts it to a vector of three in-game angle units in [-32768, 32767]
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* range.
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*/
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s16 *read_vec3s_angle(Vec3s dst, s16 *src) {
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dst[0] = (next_s16_in_geo_script(&src) << 15) / 180;
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dst[1] = (next_s16_in_geo_script(&src) << 15) / 180;
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dst[2] = (next_s16_in_geo_script(&src) << 15) / 180;
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return src;
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}
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/**
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* Add the given graph node as a child to the current top of the gfx stack:
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* 'gCurGraphNodeList'. This is called from geo_layout commands to add nodes
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* to the scene graph.
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*/
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void register_scene_graph_node(struct GraphNode *graphNode) {
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if (graphNode != NULL) {
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gCurGraphNodeList[gCurGraphNodeIndex] = graphNode;
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if (gCurGraphNodeIndex == 0) {
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if (gCurRootGraphNode == NULL) {
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gCurRootGraphNode = graphNode;
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}
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} else {
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if (gCurGraphNodeList[gCurGraphNodeIndex - 1]->type == GRAPH_NODE_TYPE_OBJECT_PARENT) {
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((struct GraphNodeObjectParent *) gCurGraphNodeList[gCurGraphNodeIndex - 1])
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->sharedChild = graphNode;
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} else {
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geo_add_child(gCurGraphNodeList[gCurGraphNodeIndex - 1], graphNode);
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}
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}
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}
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}
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