openspades/Sources/Client/HurtRingView.cpp
2013-08-18 16:18:06 +09:00

113 lines
2.4 KiB
C++

//
// HurtRingView.cpp
// OpenSpades
//
// Created by yvt on 7/20/13.
// Copyright (c) 2013 yvt.jp. All rights reserved.
//
#include "HurtRingView.h"
#include "Client.h"
#include "IRenderer.h"
#include "IImage.h"
#include "World.h"
#include "Player.h"
#include "../Core/Debug.h"
namespace spades {
namespace client {
HurtRingView::HurtRingView(Client *cli):
client(cli), renderer(cli->GetRenderer())
{
SPADES_MARK_FUNCTION();
image = renderer->RegisterImage("Gfx/HurtRing.tga");
}
HurtRingView::~HurtRingView() {
}
void HurtRingView::ClearAll(){
items.clear();
}
void HurtRingView::Add(spades::Vector3 dir){
SPADES_MARK_FUNCTION();
Item item;
item.dir = dir;
item.fade = 3;
items.push_back(item);
}
void HurtRingView::Update(float dt) {
SPADES_MARK_FUNCTION();
std::list<Item>::iterator it;
std::vector<std::list<Item>::iterator> its;
for(it = items.begin(); it != items.end(); it++){
Item& ent = *it;
ent.fade -= dt;
if(ent.fade < 0){
its.push_back(it);
}
}
for(size_t i = 0; i < its.size(); i++)
items.erase(its[i]);
}
void HurtRingView::Draw(){
SPADES_MARK_FUNCTION();
Vector3 playerFront;
World *w = client->GetWorld();
if(!w){
ClearAll();
return;
}
Player *p = w->GetLocalPlayer();
if(p == NULL || !p->IsAlive()){
ClearAll();
return;
}
playerFront = p->GetFront2D();
float hurtRingSize = renderer->ScreenHeight() * .3f;
float cx = renderer->ScreenWidth() * .5f;
float cy = renderer->ScreenHeight() * .5f;
static const float coords[][2]={
{-1,-1},{1,-1},{-1,1}
};
std::list<Item>::iterator it;
for(it = items.begin(); it != items.end(); it++){
Item& item = *it;
float fade = item.fade * 2.f;
if(fade > 1.f)fade = 1.f;
Vector4 color = {1,1,1,fade};
renderer->SetColor(color);
Vector3 dir = -item.dir;
float c = dir.x * playerFront.x + dir.y * playerFront.y;
float s = dir.y * playerFront.x - dir.x * playerFront.y;
Vector2 verts[3];
for(int i = 0; i < 3; i++){
verts[i] = MakeVector2(coords[i][0] * c - coords[i][1] * s,
coords[i][0] * s + coords[i][1] * c);
verts[i] = verts[i] * hurtRingSize + MakeVector2(cx, cy);
}
renderer->DrawImage(image,
verts[0], verts[1], verts[2],
AABB2(0, 0, image->GetWidth(), image->GetHeight()));
}
}
}
}