135 lines
6.2 KiB
Verilog
135 lines
6.2 KiB
Verilog
`timescale 1ns / 1ps
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module collide_detection(
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input mode,
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input [10:0] player1_tank_H,
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input [10:0] player1_tank_V,
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input [1:0] player1_tank_dir,
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input player1_tank_en,
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input [10:0] player1_bullet_H,
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input [10:0] player1_bullet_V,
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input player1_bullet_en,
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input [1:0] player1_bullet_dir,
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output reg [7:0] player1_collide, // [bullet4, bullet3, bullet2, bullet1, tank4, tank3, tank2, tank1]
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input [10:0] player2_tank_H,
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input [10:0] player2_tank_V,
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input [1:0] player2_tank_dir,
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input player2_tank_en,
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input [10:0] player2_bullet_H,
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input [10:0] player2_bullet_V,
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input player2_bullet_en,
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input [10:0] player2_bullet_dir,
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output reg [7:0] player2_collide // Reserved for other bullets and tanks
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);
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parameter TANK_WIDTH = 32;
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parameter TANK_HEIGHT = 32;
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parameter BULLET_LONGER = 10;
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parameter BULLET_SHORTER = 5;
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wire [10:0] player1_bullet_RBound, player1_bullet_DBound;
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wire [10:0] player2_bullet_RBound, player2_bullet_DBound;
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wire [10:0] player1_tank_RBound, player1_tank_DBound;
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wire [10:0] player2_tank_RBound, player2_tank_DBound;
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reg [3:0] player1_tank_collide_dir, player2_tank_collide_dir;
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assign player1_bullet_RBound = player1_bullet_H + (player1_bullet_dir == 2'b11 || 2'b10) ? BULLET_LONGER : BULLET_SHORTER;
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assign player1_bullet_DBound = player1_bullet_V + (player1_bullet_dir == 2'b00 || 2'b01) ? BULLET_LONGER : BULLET_SHORTER;
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assign player2_bullet_RBound = player2_bullet_H + (player2_bullet_dir == 2'b11 || 2'b10) ? BULLET_LONGER : BULLET_SHORTER;
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assign player2_bullet_DBound = player2_bullet_V + (player2_bullet_dir == 2'b00 || 2'b01) ? BULLET_LONGER : BULLET_SHORTER;
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assign player1_tank_RBound = player1_tank_H + TANK_WIDTH - 1;
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assign player1_tank_DBound = player1_tank_V + TANK_HEIGHT - 1;
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assign player2_tank_RBound = player2_tank_H + TANK_WIDTH - 1;
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assign player2_tank_DBound = player2_tank_V + TANK_HEIGHT - 1;
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initial begin
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player1_collide <= 0;
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player2_collide <= 0;
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end
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always @(*) begin
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if(player1_tank_en) begin
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if (player2_bullet_en) begin
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if(player1_tank_H >= player2_bullet_H && player1_tank_H <= player2_bullet_RBound &&
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player1_tank_V >= player2_bullet_V && player1_tank_V <= player2_bullet_RBound) player1_collide[5] <= 1;
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else player1_collide[5] <= 0;
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end
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if(player2_tank_en && player1_tank_RBound <= player2_tank_RBound && player1_tank_RBound >= player2_tank_H &&
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~( player1_tank_DBound < player2_tank_V || player1_tank_V > player2_tank_DBound))
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player1_tank_collide_dir[3] <= 1;
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else player1_tank_collide_dir[3] <= 0;
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if(player2_tank_en && player1_tank_H <= player2_tank_RBound && player1_tank_H >= player2_tank_H &&
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~( player1_tank_DBound < player2_tank_V || player1_tank_V > player2_tank_DBound) )
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player1_tank_collide_dir[2] <= 1;
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else player1_tank_collide_dir[2] <= 0;
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if(player2_tank_en && player1_tank_V <= player2_tank_DBound && player1_tank_V >= player2_tank_V
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&& ~(player1_tank_RBound < player2_tank_H || player1_tank_H > player2_tank_RBound) )
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player1_tank_collide_dir[0] <= 1;
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else player1_tank_collide_dir[0] <= 0;
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if(player2_tank_en && player1_tank_DBound <= player2_tank_DBound && player1_tank_DBound >= player2_tank_V
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&& ~(player1_tank_RBound < player2_tank_H || player1_tank_H > player2_tank_RBound) )
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player1_tank_collide_dir[1] <= 1;
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else player1_tank_collide_dir[1] <= 0;
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player1_collide[1] <= player1_tank_collide_dir[player1_tank_dir];
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end
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/*
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object_collide_detection player1_2(
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.object1_H(player1_tank_H),
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.object1_V(player1_tank_V),
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.object1_dir(player1_tank_dir),
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.object1_en(player1_tank_en),
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.object1_RBound(player1_tank_RBound),
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.object1_DBound(player1_tank_DBound),
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.object2_H(player2_tank_H),
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.object2_V(player2_tank_V),
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.object2_dir(player2_tank_dir),
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.object2_en(player2_tank_en),
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.object2_RBound(player2_tank_RBound),
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.object2_DBound(player2_tank_DBound),
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.object1_collide(),
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.object2_collide());
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*/
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end
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always @(*) begin
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if(player2_tank_en) begin
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if (player1_bullet_en) begin
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if(player2_tank_H >= player1_bullet_H && player2_tank_H <= player1_bullet_RBound &&
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player2_tank_V >= player1_bullet_V && player2_tank_V <= player1_bullet_RBound) player2_collide[4] <= 1;
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else player2_collide[4] <= 0;
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end
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if(player1_tank_en && player2_tank_RBound <= player1_tank_RBound && player2_tank_RBound >= player1_tank_H &&
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~( player2_tank_DBound < player1_tank_V || player2_tank_V > player1_tank_DBound))
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player2_tank_collide_dir[3] <= 1;
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else player2_tank_collide_dir[3] <= 0;
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if(player1_tank_en && player2_tank_H <= player1_tank_RBound && player2_tank_H >= player1_tank_H &&
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~( player2_tank_DBound < player1_tank_V || player2_tank_V > player1_tank_DBound) )
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player2_tank_collide_dir[2] <= 1;
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else player2_tank_collide_dir[2] <= 0;
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if(player1_tank_en && player2_tank_V <= player1_tank_DBound && player2_tank_V >= player1_tank_V
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&& ~(player2_tank_RBound < player1_tank_H || player2_tank_H > player1_tank_RBound) )
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player2_tank_collide_dir[0] <= 1;
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else player2_tank_collide_dir[0] <= 0;
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if(player1_tank_en && player2_tank_DBound <= player1_tank_DBound && player2_tank_DBound >= player1_tank_V
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&& ~(player2_tank_RBound < player1_tank_H || player2_tank_H > player1_tank_RBound) )
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player2_tank_collide_dir[1] <= 1;
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else player2_tank_collide_dir[1] <= 0;
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player2_collide[1] <= player2_tank_collide_dir[player2_tank_dir];
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end
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end
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endmodule
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