167 lines
4.1 KiB
C++
167 lines
4.1 KiB
C++
/*
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Copyright (c) 2013 yvt
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This file is part of OpenSpades.
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OpenSpades is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenSpades is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenSpades. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include "ParticleSpriteEntity.h"
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#include "../Core/Debug.h"
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#include "World.h"
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#include "GameMap.h"
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namespace spades {
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namespace client{
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ParticleSpriteEntity::ParticleSpriteEntity(Client *cli, IImage *image, Vector4 color):
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image(image), color(color)
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{
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position = MakeVector3(0,0,0);
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velocity = MakeVector3(0, 0, 0);
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radius = 1.f;
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radiusVelocity = 0.f;
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angle = 0.f;
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rotationVelocity = 0.f;
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velocityDamp = 1;
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gravityScale = 1.f;
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lifetime = 1.f;
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radiusDamp = 1.f;
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time = 0.f;
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fadeInDuration = .1f;
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fadeOutDuration = .5f;
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additive = false;
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blockHitAction = Delete;
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renderer = cli->GetRenderer();
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if(cli->GetWorld())
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map = cli->GetWorld()->GetMap();
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else
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map = NULL;
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}
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void ParticleSpriteEntity::SetLifeTime(float lifeTime,
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float fadeIn,
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float fadeOut){
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lifetime = lifeTime;
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fadeInDuration = fadeIn;
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fadeOutDuration = fadeOut;
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}
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void ParticleSpriteEntity::SetTrajectory(Vector3 pos,
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Vector3 vel,
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float damp,
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float grav) {
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position = pos;
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velocity = vel;
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velocityDamp = damp;
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gravityScale = grav;
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}
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void ParticleSpriteEntity::SetRotation(float initialAngle,
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float angleVelocity) {
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angle = initialAngle;
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rotationVelocity = angleVelocity;
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}
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void ParticleSpriteEntity::SetRadius(float initialRadius,
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float radiusVelocity,
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float damp) {
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radius = initialRadius;
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this->radiusVelocity = radiusVelocity;
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radiusDamp = damp;
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}
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bool ParticleSpriteEntity::Update(float dt) {
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SPADES_MARK_FUNCTION_DEBUG();
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Vector3 lastPos = position;
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time += dt;
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if(time > lifetime)
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return false;
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position += velocity * dt;
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velocity.z += 32.f * dt * gravityScale;
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// TODO: control clip action
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if(blockHitAction != Ignore && map){
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if(map->ClipWorld(position.x, position.y, position.z)){
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if(blockHitAction == Delete){
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return false;
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}else{
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IntVector3 lp2 = lastPos.Floor();
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IntVector3 lp = position.Floor();
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if (lp.z != lp2.z && ((lp.x == lp2.x && lp.y == lp2.y) ||
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!map->ClipWorld(lp.x, lp.y, lp2.z)))
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velocity.z = -velocity.z;
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else if(lp.x != lp2.x && ((lp.y == lp2.y && lp.z == lp2.z) ||
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!map->ClipWorld(lp2.x, lp.y, lp.z)))
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velocity.x = -velocity.x;
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else if(lp.y != lp2.y && ((lp.x == lp2.x && lp.z == lp2.z) ||
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!map->ClipWorld(lp.x, lp2.y, lp.z)))
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velocity.y = -velocity.y;
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velocity *= .36f;
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position = lastPos;
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}
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}
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}
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// radius
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if(radiusVelocity != 0.f)
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radius += radiusVelocity * dt;
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if(rotationVelocity != 0.f)
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angle += rotationVelocity * dt;
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if(velocityDamp != 1.f)
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velocity *= powf(velocityDamp, dt);
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if(radiusDamp != 1.f)
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radiusVelocity *= powf(radiusDamp, dt);
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return true;
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}
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void ParticleSpriteEntity::Render3D() {
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SPADES_MARK_FUNCTION_DEBUG();
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float fade = 1.f;
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if(time < fadeInDuration){
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fade *= time / fadeInDuration;
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}
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if(time > lifetime - fadeOutDuration){
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fade *= (lifetime - time) / fadeOutDuration;
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}
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Vector4 col = color;
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col.w *= fade;
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//premultiplied alpha!
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col.x *= col.w;
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col.y *= col.w;
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col.z *= col.w;
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if(additive)
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col.w = 0.f;
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renderer->SetColor(col);
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renderer->AddSprite(image,
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position,
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radius,
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angle);
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}
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}
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}
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