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Demo3DCursor.cpp

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/*
CS Senior Project 2003
Team : Leftfield
Project : ModernWarfare
Members :
- Russ Christensen              <rchriste@cs.utah.edu>
- Todd Smith                    <tcsmith@cs.utah.edu>
- Usit Duongsaa                 <duongsaa@cs.utah.edu>
Copyright 2003 Russ Christensen, Usit Duongsaa, and Todd Smith. All rights reserved.

Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:

Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. 
Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. 
THIS SOFTWARE IS PROVIDED BY RUSS CHRISTENSEN, USIT DUONGSAA, AND TODD SMITH ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RUSS, USIT, TODD OR OTHER CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/


#include "WinMainSelector.h"
#if defined COMPILE_DEMO3DCURSOR

#include "..\AEngine\AEngine.h"

namespace {
        ATexture        terrainTexture = NULL;
        AMesh           terrainMesh        = NULL;

        ATexture        mouseCursor = NULL;
        ATexture        tankTexture = NULL;
        AMesh           tankMesh        = NULL;
        AMesh           turretMesh  = NULL;
        FLOAT           camTheta, camRadius, camHeight;
        Vec3            tankPos;
        FLOAT           tankTheta, turretTheta;

        Vec2            mouse2D;
        Vec3            mouse3D;
}

//------------------------------------------------------------------------------------
void init()
{       
        sys_showConsole(true);

        terrainTexture = load_texture("textures\\environment\\terrain_mixed.tga");
        terrainMesh    = load_mesh("models\\environment\\terrain_box.obj");

        //mouseCursor = load_texture("textures\\interface\\mouseCursors.tga");
        mouseCursor = load_texture("textures\\interface\\cursor.dds");
        tankTexture = load_texture("textures\\units\\tank_light.tga");
        tankMesh    = load_mesh("models\\parts\\tank_light_chasis.obj");
        turretMesh  = load_mesh("models\\parts\\tank_light_turret.obj");
        
        camTheta = 0.0f;
        camRadius = 30.0f;
        camHeight = 10.0f;

        tankPos = Vec3D(0.0f,0.0f,0.0f);
        tankTheta = turretTheta = 0.0f;
}
//------------------------------------------------------------------------------------
void update()
{
        Vec3D camPos( cosf(camTheta)*camRadius, sinf(camTheta)*camRadius, camHeight );
        const Vec3D origin(0.0f,0.0f,0.0f);
        camera_set( camPos, origin, 0.1f );
        
        // camera control
        if( input_isKeyDown(KeyCodes::key_LEFT) )       camTheta -= 0.05f;
        if( input_isKeyDown(KeyCodes::key_RIGHT) )      camTheta += 0.05f;
        if( input_isKeyDown(KeyCodes::key_UP) )         camRadius -= 0.3f;
        if( input_isKeyDown(KeyCodes::key_DOWN) )       camRadius += 0.3f;
        if( input_isKeyDown(KeyCodes::key_PRIOR) )      camHeight += 0.3f;
        if( input_isKeyDown(KeyCodes::key_NEXT) )       camHeight -= 0.3f;

        mouse2D = Vec2D( input_getMouseX(),input_getMouseY() );
        mouse3D = math_translateScreenToWorldPlane( mouse2D, 0.0f );
        
}
//------------------------------------------------------------------------------------
void render()
{
        overlay_text() << "Use the arrow keys and the PgUp/PgDown to control CAMERA" << endl;
        overlay_textOut( Vec2D(0.0f,0.0f), 1.0f );

        const Vec3D tankSize( 4.0f, 2.0f, 0.1f );
        const Vec3D turretSize( 3.7f, 1.7f, 0.1f );

        mesh_render( tankMesh, tankPos, tankSize, Vec3D(tankTheta,90.0f,0.0f), tankTexture );
        mesh_render( turretMesh, tankPos, turretSize, Vec3D(tankTheta+turretTheta,90.0f,0.0f), tankTexture );

        mesh_render( terrainMesh, Vec3D(0,0,-1.2f), Vec3D(30.0f,30.0f,1.0f), Vec3D(0,0,0), terrainTexture );

        // mouse cursor
        const FLOAT cursorSize = 0.05f;
        overlay_image( mouseCursor, mouse2D+Vec2D(cursorSize/2,cursorSize/2), Vec2D(cursorSize,cursorSize), BlendModes::KEY );

        overlay_text() << "Mouse Cursor in 3D = " << mouse3D[0] << "   " << mouse3D[1] << "   " << mouse3D[2];
        overlay_textOut( Vec2D(0.0f, 0.1f) );

        overlay_text() << "Mouse Cursor in 2D = " << input_getMouseX() << "  " << input_getMouseY();
        overlay_textOut( Vec2D(0.0f, 0.2f) );

        Vec2D p = math_translateWorldToScreen( Vec3D(2.0f,1.0f,0.0f) );
        overlay_text() << "Test Point= " << p[0] << "  " << p[1];
        overlay_textOut( Vec2D(0.0f, 0.4f) );
}
//------------------------------------------------------------------------------------
INT WINAPI WinMain( HINSTANCE hInst, HINSTANCE hPrevInst, LPSTR, INT )
{
        sys_init(hInst,800,600,32,false);
        sys_setInitFunc(init);
        sys_setUpdateFunc(update);
        sys_setRenderFunc(render);
        sys_go();
        return 0;
}
//------------------------------------------------------------------------------------
#endif

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