plant.cpp

3D游戏展示程序

//--------------------------------------------------
//  Desc: Plant
//  Author: artsylee/2007.2.25
//--------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include "Plant.h"
#include "Heightmap.h"
#include "Common.h"
#include "ase/ASEngine.h"

extern CHeightmap g_Hmap;

CPlant::CPlant()
{
}

CPlant::~CPlant()
{
}

bool CPlant::LoadPlant(char *pFile)
{
	FILE *fp = fopen(pFile, "rb");
	if(fp == NULL)
		return false;

//	BITMAPFILEHEADER fileheader;
//	fread(&fileheader, sizeof(BITMAPFILEHEADER), 1, fp);
//	if(fileheader.bfType != 19778)
//		return false;

	fseek(fp, 1078, SEEK_SET);
	for(int z=PLANT_MAP_SIZE-1; z>=0; z--)
	{
		for(int x=0; x<PLANT_MAP_SIZE; x++)
		{
			fread(&m_PlantData[z][x], sizeof(unsigned char), 1, fp);	
		}	
	}
	fclose(fp);

	// plant position
	for(int z=0; z<PLANT_MAP_SIZE; z++)
	{
		for(int x=0; x<PLANT_MAP_SIZE; x++)
		{
			m_PlantOffset[z][x].xbias = 5+(rand()%30); // max 40
			m_PlantOffset[z][x].zbias = 5+(rand()%30);
		}	
	}
	return true;
}

void CPlant::Render()
{
	int tx, tz; // in terrain map
	int cx, cz; // in cover map
	int type;
	D3DXVECTOR3 pos;

//	g_pD3DDevice->SetRenderState(D3DRS_CULLMODE, D3DCULL_NONE);
	if(g_Hmap.m_bViewerChange)
	{
		m_VertexIndex = 0;
		for(int x=108; x<148; x++)
		{
			for(int z= 108; z<148; z++)
			{
				if(g_Hmap.m_Frustum.IsInFrustum(x, z))
				{
					tx = g_Hmap.m_pMovemap[z*256+x].xpos;
					tz = g_Hmap.m_pMovemap[z*256+x].zpos;
					pos = g_Hmap.ConvertToWorld(x, z);

					cx = tx/4;
					cz = tz/4;

					type = m_PlantData[cz][cx];
					if(type!=0)
					{
						//	type = 192;
						pos.x += m_PlantOffset[cz][cx].xbias;
						pos.z += m_PlantOffset[cz][cx].zbias;
						/*
						if(type>130)
						pos.ypos=m_cHmap.GetHeight(pos.xpos,pos.zpos)-2;
						else
						pos.ypos=m_cHmap.GetHeight(pos.xpos,pos.zpos)-1;
						if(type==64)
						m_cBush1.RenderBush(pos);
						if(type==128)
						m_cPine.RenderPine(pos);
						if(type==192)
						m_cTree1.Render3DTree(pos);
						if(type==255)
						m_cTree2.Render3DTree(pos);
						*/
					//	pos.y=g_Hmap.GetHeight(pos.x, pos.z)-2;
					//	m_Tree.RenderTree(pos, m_Vertex, &m_VertexIndex);

					}
				}
			}
		}
	}

	SET_TEXTURE_TYPE(0, 1003);
	g_pD3DDevice->DrawPrimitiveUP(D3DPT_TRIANGLELIST, m_VertexIndex/3, m_Vertex, sizeof(HeightmapVertex));
//	m_Tree.RenderTree(D3DXVECTOR3(1240, 88, 4427));
}