prosperon/source/engine/gameobject.c

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#include "gameobject.h"
#include "2dphysics.h"
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#include "debugdraw.h"
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#include "input.h"
#include "log.h"
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#include "nuke.h"
#include "resources.h"
#include "script.h"
#include "shader.h"
#include "sprite.h"
#include <chipmunk/chipmunk.h>
#include <string.h>
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#include "stb_ds.h"
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struct gameobject *gameobjects = NULL;
static int first = -1;
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const int nameBuf[MAXNAME] = {0};
const int prefabNameBuf[MAXNAME] = {0};
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struct gameobject *get_gameobject_from_id(int id) {
if (id < 0) return NULL;
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return &gameobjects[id];
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}
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struct gameobject *id2go(int id) {
if (id < 0) return NULL;
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return &gameobjects[id];
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}
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int body2id(cpBody *body) {
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return (int)cpBodyGetUserData(body);
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}
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cpBody *id2body(int id) {
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struct gameobject *go = id2go(id);
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if (go)
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return go->body;
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return NULL;
}
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int shape2gameobject(cpShape *shape) {
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struct phys2d_shape *s = cpShapeGetUserData(shape);
return s->go;
}
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int pos2gameobject(cpVect pos) {
cpShape *hit = phys2d_query_pos(pos);
if (hit) {
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return shape2gameobject(hit);
}
for (int i = 0; i < arrlen(gameobjects); i++) {
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if (!gameobjects[i].body) continue;
cpVect gpos = cpBodyGetPosition(gameobjects[i].body);
float dist = cpvlength(cpvsub(gpos, pos));
if (dist <= 25) return i;
}
return -1;
}
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int id_from_gameobject(struct gameobject *go) {
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for (int i = 0; i < arrlen(gameobjects); i++) {
if (&gameobjects[i] == go) return i;
}
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return -1;
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}
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void gameobject_set_sensor(int id, int sensor) {
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id2go(id)->sensor = sensor;
gameobject_apply(id2go(id));
}
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int go2id(struct gameobject *go) {
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return id_from_gameobject(go);
}
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void go_shape_apply(cpBody *body, cpShape *shape, struct gameobject *go) {
cpShapeSetFriction(shape, go->f);
cpShapeSetElasticity(shape, go->e);
cpShapeSetCollisionType(shape, go2id(go));
/* cpShapeFilter filter;
filter.group = go2id(go);
filter.categories = 1<<go->layer;
filter.mask = category_masks[go->layer];
cpShapeSetFilter(shape, filter);
*/
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}
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void go_shape_moi(cpBody *body, cpShape *shape, struct gameobject *go) {
float moment = cpBodyGetMoment(go->body);
struct phys2d_shape *s = cpShapeGetUserData(shape);
if (!s) {
cpBodySetMoment(go->body, moment + 1);
return;
}
moment += s->moi(s->data, go->mass);
cpBodySetMoment(go->body, moment);
}
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void gameobject_apply(struct gameobject *go) {
cpBodySetType(go->body, go->bodytype);
cpBodyEachShape(go->body, go_shape_apply, go);
if (go->bodytype == CP_BODY_TYPE_DYNAMIC) {
cpBodySetMass(go->body, go->mass);
cpBodySetMoment(go->body, 0.f);
cpBodyEachShape(go->body, go_shape_moi, go);
if (cpBodyGetMoment(go->body) <= 0.f)
cpBodySetMoment(go->body, 1.f);
return;
}
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}
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static void gameobject_setpickcolor(struct gameobject *go) {
/*
float r = ((go->editor.id & 0x000000FF) >> 0) / 255.f;
float g = ((go->editor.id & 0x0000FF00) >> 8) / 255.f;
float b = ((go->editor.id & 0x00FF0000) >> 16) / 255.f;
go->editor.color[0] = r;
go->editor.color[1] = g;
go->editor.color[2] = b;
*/
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}
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int MakeGameobject() {
struct gameobject go = {
.scale = 1.f,
.bodytype = CP_BODY_TYPE_STATIC,
.mass = 1.f,
.next = -1,
.sensor = 0,
.shape_cbs = NULL,
};
go.cbs.begin.obj = JS_NULL;
go.cbs.separate.obj = JS_NULL;
go.body = cpSpaceAddBody(space, cpBodyNew(go.mass, 1.f));
int retid;
if (first < 0) {
arrput(gameobjects, go);
retid = arrlast(gameobjects).id = arrlen(gameobjects) - 1;
} else {
retid = first;
first = id2go(first)->next;
*id2go(retid) = go;
}
cpBodySetUserData(go.body, (void *)retid);
phys2d_setup_handlers(retid);
return retid;
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}
void rm_body_shapes(cpBody *body, cpShape *shape, void *data) {
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struct phys2d_shape *s = cpShapeGetUserData(shape);
if (s->data) {
free(s->data);
s->data = NULL;
}
cpSpaceRemoveShape(space, shape);
cpShapeFree(shape);
}
int *go_toclean = NULL;
/* Free this gameobject */
void gameobject_clean(int id) {
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struct gameobject *go = id2go(id);
arrfree(go->shape_cbs);
cpBodyEachShape(go->body, rm_body_shapes, NULL);
cpSpaceRemoveBody(space, go->body);
cpBodyFree(go->body);
go->body = NULL;
}
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/* Really more of a "mark for deletion" ... */
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void gameobject_delete(int id) {
id2go(id)->next = first;
first = id;
if (cpSpaceIsLocked(space))
arrpush(go_toclean, id);
else
gameobject_clean(id);
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}
void gameobjects_cleanup() {
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for (int i = 0; i < arrlen(go_toclean); i++)
gameobject_clean(go_toclean[i]);
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arrsetlen(go_toclean, 0);
return;
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int clean = first;
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while (clean >= 0 && id2go(clean)->body) {
gameobject_clean(clean);
clean = id2go(clean)->next;
}
}
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void gameobject_move(struct gameobject *go, cpVect vec) {
cpVect p = cpBodyGetPosition(go->body);
p.x += vec.x;
p.y += vec.y;
cpBodySetPosition(go->body, p);
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phys2d_reindex_body(go->body);
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}
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void gameobject_rotate(struct gameobject *go, float as) {
cpFloat a = cpBodyGetAngle(go->body);
a += as * deltaT;
cpBodySetAngle(go->body, a);
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phys2d_reindex_body(go->body);
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}
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void gameobject_setangle(struct gameobject *go, float angle) {
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cpBodySetAngle(go->body, angle);
phys2d_reindex_body(go->body);
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}
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void gameobject_setpos(struct gameobject *go, cpVect vec) {
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if (!go || !go->body) return;
cpBodySetPosition(go->body, vec);
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phys2d_reindex_body(go->body);
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}
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void object_gui(struct gameobject *go) {
/*
float temp_pos[2];
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draw_cppoint(cpBodyGetPosition(go->body), 3);
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nuke_property_float2("Position", -1000000.f, temp_pos, 1000000.f, 1.f, 0.5f);
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cpVect tvect = { temp_pos[0], temp_pos[1] };
cpBodySetPosition(go->body, tvect);
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float mtry = cpBodyGetAngle(go->body);
float modtry = fmodf(mtry * RAD2DEGS, 360.f);
if (modtry < 0.f)
modtry += 360.f;
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float modtry2 = modtry;
nuke_property_float("Angle", -1000.f, &modtry, 1000.f, 0.5f, 0.5f);
modtry -= modtry2;
cpBodySetAngle(go->body, mtry + (modtry * DEG2RADS));
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nuke_property_float("Scale", 0.f, &go->scale, 1000.f, 0.01f, go->scale * 0.01f);
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nuke_nel(3);
nuke_radio_btn("Static", &go->bodytype, CP_BODY_TYPE_STATIC);
nuke_radio_btn("Dynamic", &go->bodytype, CP_BODY_TYPE_DYNAMIC);
nuke_radio_btn("Kinematic", &go->bodytype, CP_BODY_TYPE_KINEMATIC);
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cpBodySetType(go->body, go->bodytype);
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if (go->bodytype == CP_BODY_TYPE_DYNAMIC) {
nuke_property_float("Mass", 0.01f, &go->mass, 1000.f, 0.01f, 0.01f);
cpBodySetMass(go->body, go->mass);
}
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nuke_property_float("Friction", 0.f, &go->f, 10.f, 0.01f, 0.01f);
nuke_property_float("Elasticity", 0.f, &go->e, 2.f, 0.01f, 0.01f);
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int n = -1;
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for (int i = 0; i < arrlen(go->components); i++) {
struct component *c = &go->components[i];
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comp_draw_debug(c);
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nuke_nel(5);
if (nuke_btn("Del")) n = i;
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if (nuke_push_tree_id(c->ref->name, i)) {
comp_draw_gui(c);
nuke_tree_pop();
}
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}
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if (n >= 0)
gameobject_delcomponent(go, n);
*/
}
void body_draw_shapes_dbg(cpBody *body, cpShape *shape, void *data) {
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struct phys2d_shape *s = cpShapeGetUserData(shape);
s->debugdraw(s->data);
}
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void gameobject_draw_debug(int go) {
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struct gameobject *g = id2go(go);
if (!g || !g->body) return;
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cpVect pos = cpBodyGetPosition(g->body);
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struct rgba color = {
.r = 0.76*255,
.b = 0.38*255,
.g = 255,
.a = 255
};
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draw_cppoint(pos, 3.f, color);
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cpBodyEachShape(g->body, body_draw_shapes_dbg, NULL);
}
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void gameobject_draw_debugs() {
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for (int i = 0; i < arrlen(gameobjects); i++)
gameobject_draw_debug(i);
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}
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static struct {
struct gameobject go;
cpVect pos;
float angle;
} *saveobjects = NULL;
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void gameobject_saveall() {
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arrfree(saveobjects);
arrsetlen(saveobjects, arrlen(gameobjects));
for (int i = 0; i < arrlen(gameobjects); i++) {
saveobjects[i].go = gameobjects[i];
saveobjects[i].pos = cpBodyGetPosition(gameobjects[i].body);
saveobjects[i].angle = cpBodyGetAngle(gameobjects[i].body);
}
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}
void gameobject_loadall() {
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YughInfo("N gameobjects: %d, N saved: %d", arrlen(gameobjects), arrlen(saveobjects));
for (int i = 0; i < arrlen(saveobjects); i++) {
gameobjects[i] = saveobjects[i].go;
cpBodySetPosition(gameobjects[i].body, saveobjects[i].pos);
cpBodySetAngle(gameobjects[i].body, saveobjects[i].angle);
cpBodySetVelocity(gameobjects[i].body, cpvzero);
cpBodySetAngularVelocity(gameobjects[i].body, 0.f);
}
arrfree(saveobjects);
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}
int gameobjects_saved() {
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return arrlen(saveobjects);
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}