GRRLIB/examples/blending/source/main.c

138 lines
4.6 KiB
C

/*===========================================
GRRLIB (GX Version)
Example code by Xane
This example shows the different
new blending modes.
============================================*/
#include <grrlib.h>
#include <stdlib.h>
#include <wiiuse/wpad.h>
#include <math.h>
// Include Graphics
#include "GFX/RGFX_Background.h"
#include "GFX/RGFX_Blob01.h"
#include "GFX/RGFX_Blob02.h"
#include "GFX/RGFX_Blob03.h"
#include "GFX/RGFX_Font.h"
// Declare Static Functions
static void ExitGame();
// General Variables
extern GXRModeObj *rmode;
ir_t P1Mote;
// Prepare Graphics
GRRLIB_texImg *GFX_Background;
GRRLIB_texImg *GFX_Blob[3];
GRRLIB_texImg *GFX_Font;
int main() {
// Init Variables
u32 WPADKeyDown;
short WinW, WinH;
int P1MX, P1MY;
u8 Stage = 0, Blending = 0;
u8 BlobType = 0;
u8 Color = 255;
u16 Step = 0;
float SX, SY;
// Init GRRLIB & WiiUse
GRRLIB_Init();
WinW = rmode->fbWidth;
WinH = rmode->efbHeight;
WPAD_Init();
WPAD_SetIdleTimeout( 60*10 );
WPAD_SetDataFormat( WPAD_CHAN_0, WPAD_FMT_BTNS_ACC_IR );
// Load Textures
GFX_Background = GRRLIB_LoadTextureJPG(RGFX_Background);
GFX_Blob[0] = GRRLIB_LoadTexturePNG(RGFX_Blob01);
GFX_Blob[1] = GRRLIB_LoadTexturePNG(RGFX_Blob02);
GFX_Blob[2] = GRRLIB_LoadTexturePNG(RGFX_Blob03);
GFX_Font = GRRLIB_LoadTexturePNG(RGFX_Font);
GRRLIB_InitTileSet(GFX_Font, 8, 16, 32);
// Set Handles
GRRLIB_SetMidHandle( GFX_Blob[0], true );
GRRLIB_SetMidHandle( GFX_Blob[1], true );
GRRLIB_SetMidHandle( GFX_Blob[2], true );
while (true) {
WPAD_ScanPads();
WPADKeyDown = WPAD_ButtonsDown(WPAD_CHAN_0);
WPAD_SetVRes(WPAD_CHAN_0, WinW, WinH);
WPAD_IR(WPAD_CHAN_0, &P1Mote);
// WiiMote IR Viewport Correction
P1MX = P1Mote.sx - 150;
P1MY = P1Mote.sy - 150;
// Update Stage
Step = Step + 1;
if (Step == 720) { Step = 0; }
SX = 320 + (sin(DegToRad(Step )) * 250);
SY = 240 + (cos(DegToRad(Step*3)) * 100);
// Draw Stage
GRRLIB_DrawImg( 0, 0, GFX_Background, 0, 1, 1, RGBA(255, 255, 255, 255) );
GRRLIB_SetBlend( (Blending+1) ); Color = 255;
switch (Stage) {
case 2: Color = 160; break;
case 3: Color = 128; break;
case 4: Color = 64; break;
}
GRRLIB_DrawImg( SX, SY, GFX_Blob[BlobType], 0, 1, 1, RGBA(Color, Color, Color, 255) );
// IR Pointer
if (P1Mote.state == 1) {
GRRLIB_DrawImg( P1MX, P1MY, GFX_Blob[BlobType], 0, 1, 1, RGBA(Color, Color, Color, 255) );
}
// Draw Text
GRRLIB_SetBlend ( GRRLIB_BLEND_ALPHA );
GRRLIB_Rectangle( 28, 28, 480 + 16, 76, RGBA(0, 0, 0, 160), 1 );
GRRLIB_Printf ( 32, 32, GFX_Font, 0xFFFFFFFF, 1, "Point your WiiMote on the screen." );
GRRLIB_Printf ( 32, 48, GFX_Font, 0xFFFFFFFF, 1, "Press LEFT and RIGHT to switch through the different stages." );
GRRLIB_Printf ( 32, 64, GFX_Font, 0xFFFFFFFF, 1, "Press A to change the blob sprite." );
switch (Stage) {
case 0: GRRLIB_Printf( 32, 88, GFX_Font, 0xFFFFFFFF, 1, "Stage 1: Additive Blending" ); Blending = 0; break;
case 1: GRRLIB_Printf( 32, 88, GFX_Font, 0xFFFFFFFF, 1, "Stage 2: Alpha Light Blending" ); Blending = 1; break;
case 2: GRRLIB_Printf( 32, 88, GFX_Font, 0xFFFFFFFF, 1, "Stage 3: Multiply Blending (75%)" ); Blending = 2; break;
case 3: GRRLIB_Printf( 32, 88, GFX_Font, 0xFFFFFFFF, 1, "Stage 4: Multiply Blending (50%)" ); Blending = 2; break;
case 4: GRRLIB_Printf( 32, 88, GFX_Font, 0xFFFFFFFF, 1, "Stage 5: Multiply Blending (25%)" ); Blending = 2; break;
case 5: GRRLIB_Printf( 32, 88, GFX_Font, 0xFFFFFFFF, 1, "Stage 6: Invert Color Blending" ); Blending = 3; break;
}
GRRLIB_Render();
if (WPADKeyDown & WPAD_BUTTON_RIGHT) { if (Stage < 5) { Stage += 1; } }
if (WPADKeyDown & WPAD_BUTTON_LEFT ) { if (Stage > 0) { Stage -= 1; } }
if (WPADKeyDown & WPAD_BUTTON_A ) { BlobType += 1; if (BlobType > 2) { BlobType = 0; } }
if (WPADKeyDown & WPAD_BUTTON_HOME ) { ExitGame(); }
}
ExitGame();
return 0;
}
static void ExitGame() {
// Free all memory used by textures.
GRRLIB_FreeTexture(GFX_Background);
GRRLIB_FreeTexture(GFX_Blob[0]);
GRRLIB_FreeTexture(GFX_Blob[1]);
GRRLIB_FreeTexture(GFX_Blob[2]);
GRRLIB_FreeTexture(GFX_Font);
// Deinitialize GRRLIB & Video
GRRLIB_Exit();
// Exit application
exit(0);
}