77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
#if !defined(HANDMADE_ENTITY_H)
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/* ========================================================================
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$File: $
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$Date: $
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$Revision: $
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$Creator: Casey Muratori $
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$Notice: (C) Copyright 2015 by Molly Rocket, Inc. All Rights Reserved. $
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======================================================================== */
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#define InvalidP V3(100000.0f, 100000.0f, 100000.0f)
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inline bool32
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IsSet(sim_entity *Entity, uint32 Flag)
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{
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bool32 Result = Entity->Flags & Flag;
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return(Result);
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}
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inline void
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AddFlags(sim_entity *Entity, uint32 Flag)
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{
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Entity->Flags |= Flag;
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}
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inline void
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ClearFlags(sim_entity *Entity, uint32 Flag)
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{
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Entity->Flags &= ~Flag;
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}
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inline void
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MakeEntityNonSpatial(sim_entity *Entity)
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{
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AddFlags(Entity, EntityFlag_Nonspatial);
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Entity->P = InvalidP;
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}
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inline void
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MakeEntitySpatial(sim_entity *Entity, v3 P, v3 dP)
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{
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ClearFlags(Entity, EntityFlag_Nonspatial);
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Entity->P = P;
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Entity->dP = dP;
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}
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inline v3
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GetEntityGroundPoint(sim_entity *Entity, v3 ForEntityP)
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{
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v3 Result = ForEntityP;
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return(Result);
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}
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inline v3
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GetEntityGroundPoint(sim_entity *Entity)
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{
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v3 Result = GetEntityGroundPoint(Entity, Entity->P);
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return(Result);
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}
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inline real32
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GetStairGround(sim_entity *Entity, v3 AtGroundPoint)
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{
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Assert(Entity->Type == EntityType_Stairwell);
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rectangle2 RegionRect = RectCenterDim(Entity->P.xy, Entity->WalkableDim);
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v2 Bary = Clamp01(GetBarycentric(RegionRect, AtGroundPoint.xy));
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real32 Result = Entity->P.z + Bary.y*Entity->WalkableHeight;
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return(Result);
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}
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#define HANDMADE_ENTITY_H
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#endif
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